HUBEI AGRICULTURAL SCIENCES

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Effects of varieties and mechanical-transplanting density on rice quality under the rice-shrimp co-cropping mode

TANG Jian-peng, CHEN Jing-du, ZHANG Ming-wei, YAO Yi, WEN Kai, MIN Si-gui, LU Pei-ling

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 1-6. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.001

Abstract （156）

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The effects of different mechanical-transplanting patterns and densities on the rice quality of Nanjing 9108 and Nanjing 5718, two japonica rice varieties with good taste quality, were studied. The results showed that compared with the conventional cultivation mode, the rice-shrimp co-cropping mode increased the head milled rice rate, protein content and gel consistency of rice, and decreased the chalky grain rate, chalkiness degree and amylose content. The rice-shrimp co-cropping had a greater impact on the starch RVA profile characteristic values. It increased the disintegration value, and reduced the attenuation value. The rice-shrimp co-cropping improved the appearance, hardness, viscosity, equilibrium degree and taste value of the rice. The mechanical-transplanting density had a great influence on chalky grain rate and amylose content（P<0.01）, significantly affected chalkiness degree and protein content （P<0.05）,and the taste quality of rice was significantly improved with the decrease of the mechanical-transplanting density. The interaction analysis showed that varieties, mechanical-transplanting densities, patterns, and their interactions had significant effects on rice quality.

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Effects of different controlled release periods of nitrogen on photosynthetic characteristics and dry matter accumulation and distribution of sweet potato

MA Cun-jin, KONG Xian-kui, LI Guang-hua, GU Yan-bing, WANG Juan, ZHANG Zhe, WANG Qing-mei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 7-10. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.002

Abstract （130）

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Four nitrogen fertilizer treatments with different controlled release periods of 30 d（T30）, 50 d（T50）, 70 d（T70） and 90 d （T90） were set up in the field to investigate the effect of the controlled release periods of nitrogen on photosynthetic characteristics, dry matter accumulation and distribution of sweet potato[Ipomoea batatas （L.） Lam.], with the cultivar JiShu25 as the test material and using common compound fertilizer with equal nutrient content as control （CK）. The results showed that the appropriate controlled release periods （30~70 d） of nitrogen improved the photosynthetic performance of sweet potato leaves in the middle and late stage （80~160 d）, and promoted the rapid accumulation and transfer of underground dry matter of sweet potato. The photosynthetic terms, dry matter accumulation （accumulation amount, accumulation rate） and distribution （distribution ratio, root-shoot ratio） index of sweet potato leaves in the middle and late stage were significantly higher than CK. Among them, the treatment with controlled release periods of nitrogen of 50 d and 70 d were better. The photosynthetic rate, chlorophyll SPAD, underground dry matter accumulation amount, root-shoot ratio of T50 and T70 increased by 14.01%, 11.32%, 21.75%, 18.48% and 15.62%, 11.84%, 20.65%, 18.84% in the harvest time （160 d）. Underground dry matter accumulation and distribution index in the late stage（120~160 d） were lower than CK when the controlled release periods of nitrogen achieved 90 d. This indicated that long controlled release periods of nitrogen had an inhibiting effect on the rapid accumulation and transfer of underground dry matter of sweet potato.

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Analysis of spatiotemporal changes in ecological sensitivity in Eryuan County from 2000 to 2020

WANG Yu, DONG Ya-kun, ZENG Wei-jun

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 11-17. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.003

Abstract （100）

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Taking Eryuan County, Dali Bai Autonomous Prefecture, Yunnan Province as the research object, ENVI and ArcGIS were used for data processing to construct a multi factor ecological sensitivity evaluation index system, and single factor and comprehensive sensitivity evaluations were carried out. The results showed that from 2000 to 2020, the proportion of non sensitive areas, mild sensitive areas, and moderate sensitive areas of vegetation coverage index, land use type, and comprehensive ecological sensitivity in Eryuan County showed a decreasing trend;the proportion of highly sensitive areas in vegetation coverage index, land use type, and comprehensive ecological sensitivity showed an increasing trend, increasing by 31.47, 21.85, and 20.76 percentage points, respectively;the highly sensitive areas of vegetation coverage index range from sporadic distribution to a “Chuan” shaped distribution;the highly sensitive areas of land use types were distributed in most areas except for the mountainous basins in Sanying Town and Dengchuan Town;the distribution range of non sensitive and lightly sensitive areas of comprehensive ecological sensitivity was gradually shrinking, mainly distributed in mountain basins, while highly sensitive areas were mainly distributed in Luoping Mountains in the eastern and central Eryuan County. The rapid increase in the area of highly sensitive areas in Eryuan County was fundamentally due to the implementation of ecological protection policies in the Erhai River Basin.

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Spatio-temporal evolution of land use and profit and loss analysis of ecosystem service value in Changji City

WANG Yun-ting, GAO Min-hua

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 18-24. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.004

Abstract （108）

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By analyzing the remote sensing data of land use in Changji City from 2000 to 2020, the mutual transfer changes of land types and ecological value were explored under the economic development of Changji City. The results showed that the grassland area of Changji City accounted for the largest proportion of the total area, accounting for more than 40.00% in all years. The area of grassland and water showed a decreasing trend, while the area of other land types showed an increasing trend. The area of grassland turned into cultivated land was 44 715.71 hm², which was the way of largest transfer change. Through the gray prediction model, it was predicted that the area of grassland and water was still in a declining trend but slowed down in the next 15 years, and the growth of cultivated land and construction land was also gradually slowed down. From 2000 to 2020, the total value of ecosystem services in Changji City showed a decreasing trend, from 12.049 billion yuan in 2000 to 11.348 billion yuan in 2020. The value of grassland was the largest, accounting for about 60% of the total value. In the changes of the value of each ecological system service, except for the ecological function of food production and raw material production, the value of other ecological functions decreased to varying degrees. The transfer of grassland, forestland and water caused a decrease of the value of ecosystem services, among which the transfer of grassland to unused land was the land transfer category with the greatest value loss.

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Research on the accounting and space utilization of gross ecosystem product in Jinzhong City

WANG Dao-yuan, WANG Jin, LIU Hui-fang, HAN Miao, MA Xin

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 25-32. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.005

Abstract （105）

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Based on the functional price method, a framework for calculating gross ecosystem product （GEP） was constructed, and the GEP of Jinzhong City, Shanxi Province in 2019 was calculated by 15 accounting subjects in three categories of supply services, regulation services, and cultural services. The spatial analysis and utilization evaluation were conducted based on the distribution of different value quantities. The results showed that the GEP of Jinzhong City in 2019 was 171.932 billion yuan, with supply services, regulation services, and cultural services accounting for 10.3%, 71.6%, and 18.1% of the total value, respectively. The GEP provided by different ecosystem types in descending order was forest, wetland, farmland and grassland. The GEP of each county （city,district） in descending order was Heshun County, Zuoquan County, Shouyang County, Xiyang County, Yushe County, Pingyao County, Yuci District, Lingshi County, Taigu District, Qi County, and Jiexiu City, with an overall distribution pattern of high in the east and low in the west. Finally, based on the spatial distribution and importance of different service categories in GEP, ecological product dominant service zoning and spatial utilization evaluation were carried out in the study area.

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The temporal and spatial evolution and driving force of the coordinated development of rural living environment and economy in the western region：Taking Guangxi as an example

ZHONG Xiu-feng, ZHONG Rui-sen, DONG Ye

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 33-41. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.006

Abstract （102）

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Taking 2005, 2010, 2015 and 2020 as the research time nodes, the entropy weight TOPSIS model was used to measure the quality of rural living environment and regional economic development in 14 prefecture-level cities in Guangxi, the coupling coordination model was used to measure the coupling coordination degree of the two, and the optimal parameter geo-detector model was used to explore the driving factors of rural living environment quality. The results showed that the quality of rural living environment and the level of regional economic development in Guangxi from 2005 to 2020 showed a gradual upward trend. The high-value areas of rural living environment were mainly distributed in northern and western Guangxi, and the low-value areas were distributed in southern and central Guangxi, the high-value areas of regional economic development level were distributed in the northern area of Guangxi, and the low-value areas were distributed in the western area of Guangxi; the degree of coupling coordination between the two had steadily improved, but the level of coordination was not high, and the coordination changes showed the characteristics of gradually radiating and spreading from a single core area to the surrounding areas; the driving force of the rural living environment was mainly related to the level of rural communication facilities, the per capita housing area in rural areas, the effective irrigation efficiency of farmland, and the per capita consumption level of farmers.

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Effects of fulvic acid potassium on nitrogen absorption, distribution and utilization of Ziziphus jujuba Mill. cv. Lingwuchangzao

LI Hui, LI Bai-yun

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 42-46. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.007

Abstract （95）

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Five-year-old Ziziphus jujuba Mill. cv. Lingwuchangzao trees were used as materials, and ¹⁵N trace technique was used to study the effects of 0 kg/plant （CK）, 0.5 kg/plant （T1）, 1.0 kg/plant （T2） and 1.5 kg/plant （T3） potassium fulvic acid organic fertilizer on nitrogen absorption, distribution and utilization of Z. jujuba Mill. cv. Lingwuchangzao in the field experiment. The results showed that the nitrogen accumulation of Z. jujuba Mill. cv. Lingwuchangzao increased with the increase of fulvic acid potassium supply level. The nitrogen accumulation of T3 was the highest （59.66 g/plant） at fruit maturity. The nitrogen accumulation of leaves and fruits was high in each treatment. The three fulvic acid potassium treatments significantly improved the nitrogen absorption and regulation ability （Ndff values） and ¹⁵N absorption of plants（P<0.05）, and the order from high to low was T3, T2, T1, and CK. In terms of the Ndff value of different organs, the value of the fruit was the highest. The ¹⁵N distribution rate of each organ of plants with different treatments was different, and the storage organ （fruit） was high. Compared to CK, the ¹⁵N utilization rates of three fulvic acid potassium treatments increased by 2.27 to 5.34 percentage points, and T3 was the best （8.92%）. Comprehensive analysis showed that the ¹⁵N absorption and utilization of Z. jujuba Mill. cv. Lingwuchangzao was the best, when combined with fulvic acid potassium organic fertilizer of 1.5 kg/plant.

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Soil nutrients characteristics of Pinus sylvestris L. var. mongolica Litv. plantation in Yulin City

BAI Xiao-xia, CUI Jie, ZHOU Qian-qiang, QI Kai-le

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 47-51. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.008

Abstract （101）

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In order to investigate the characteristics of soil nutrient changes of Pinus sylvestris L. var. mongolica Litv. plantation in Yulin City, Shaanxi Province, a 5-year-old pure plantation and a 5-year-old mixed plantation of P. sylvestris L. var. mongolica Litv. were selected as the research objects, and the changes of soil organic matter, nitrate nitrogen, available phosphorus, available potassium, and soil enzyme activity were analyzed. The results showed that the contents of soil organic matter, available phosphorus and available potassium in pure forest of P. sylvestris var. mongolica Litv. （abbreviated as pure forest） and mixed forest of P. sylvestris L. var. mongolica Litv. and Lespedeza bicolor Turcz. （abbreviated as mixed forest） decreased with the increase of soil depth, the content of total phosphorus increased first and then decreased with the increase of soil depth, and the content of nitrate nitrogen increased with the increase of soil depth. The five indexes showed that the mixed forest was higher than that of pure forest, and the content of available phosphorus in each layer of mixed forest was significantly higher than that of pure forest （P<0.05）. The soil moisture content between different soil layers was no significant in pure forest and mixed forest, and the soil moisture content of 5~15 cm soil layer in mixed forest was significantly higher than that in pure forest （P<0.05）. The soil alkaline phosphatase activity, catalase activity and urease activity of pure forest and mixed forest decreased with the increase of soil depth, and the catalase activity and urease activity of mixed forest were significantly higher than those of pure forest in each soil layer （P<0.05）.

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The effects of substrate types and flocs concentration on seed germination of Vallisneria natans

WEN Dong-hua, HUANG Min, XI Han, ZHAO Jun-hao, CHEN Jun-ge, WANG He-yun

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 52-56. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.009

Abstract （86）

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Germination rate, cumulative germination rate and the final germination rate of Vallisneria natans （Lour.） Hara seeds under different substrate types and different flocs concentrations were studied. The results showed that the substrate type had a significant effect on the seed germination（P<0.05）. The final germination rate of V. natans seed with yellow mud as substrate was the highest （55.8%）, while the final germination rate of seed with sediment + sand was the lowest （33.0%）. The addition of flocs significantly reduced the final germination rate of seeds, and the final germination rate of the treatment with the largest inhibition effect （29.4%） was 19.8 percentage points lower than that of the treatment without flocs （49.2%）. In the ecological restoration of rivers and lakes, ferrate, as an common flocculant, could condense pollutants in the water body and remove them from the water body to achieve the purpose of water purification. However, the flocs produced by ferrate dosing covered the surface of V. natans seeds, which would affect their germination. Comprehensive analysis, yellow mud was more suitable for the seed germination than sediment and sand, and the use of flocculants might have adverse effects on the seed germination. In practical applications, the improvement effect of flocculants on water transparency and the negative effect on the seed germination of submerged plants should be considered comprehensively.

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The functional evolution of the “productive-living-ecological space”and its response to ecological environment： A case of Enshi Prefecture of Hubei Province

LI Xue, CHANG Sheng, YANG Rong, LUO Xian-tao

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 57-64. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.010

Abstract （99）

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Taking Enshi Prefecture of Hubei Province as an example, a functional classification system of “productive-living-ecological space” was constructed, and the functional evolution of “productive-living-ecological space” and its response to the ecological environment was studied using the land use transfer matrix, center of gravity shift model, ecological environmental quality index model and ecological contribution ratio model. The results showed that, from 2000 to 2020, the overall trend of living space area was on the rise, the overall trend of ecological space area was decreasing, and the area of productive space showed a trend of first decreasing, and then increasing. The transfer distance of living space was the largest, followed by productive space, and the transfer distance of ecological space was the smallest. The overall ecological environment quality showed a downward trend. The transformation of agricultural production land into key ecological land and general ecological land, and the transformation of general ecological land into key ecological land were the major factors in the improvement of ecological environment quality; the transformation of key ecological land to agricultural production land and general ecological land were the major factors in the decline of ecological environment quality.

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Study on food trapping technology of Lasioderrma serricorne

HU Yi-chao, SU Zan, CHEN Yi-chang, ZHANG Yan, LIU Yong, YIN Peng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 65-69. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.011

Abstract （88）

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The food source powder and food source volatile substances of tobacco beetle（Lasioderma serricorne） were screened by using multi-directional traps to determine the food source powder and food source volatile substances that had an attractive effect on tobacco beetle. The results showed that pepper powder, tea and angelica powder had better attraction to tobacco beetle in food source powder, and α- Ionone had better attraction to tobacco beetle in volatile substances of food source. Using food source powder to make food trapping devices for tobacco beetle could achieve a long-term killing effect on tobacco beetle in cigarette production workshops. Using food source volatile substances to make tobacco beetle food source lure core, and combining with sex pheromone lure core, could play an 11% synergistic effect.

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Resistance identification of ten main rice cultivars to brown planthopper in Anhui Province

XU Ming, LI Da-bang, LIN Lu-lu, XIE Ming-hui, XIAO Qing-qing, CHEN Hao-liang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 70-74. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.012

Abstract （97）

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The resistance to brown planthopper （BPH） of ten main rice cultivars in Anhui Province was identified by the improved International Rice Research Institute standard seedbox screening technique and mature plant identification method. The results at the seedling stage showed that seven tested cultivars were highly susceptible to BPH at grade 9, and three tested cultivars were susceptible to BPH at grade 7. The BPH resistance identification results of the same cultivar at the mature stage were different from the results of the seedling stage. Among the ten cultivars, six cultivars had higher resistance grade during the mature stage than the seedling stage, while the remaining four cultivars remained unchanged.

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Effect of biodegradable mulch on growth and development of Capsicum frutescens

FU Xi-hao, ZHU Jian-qiang, FAN Xian-peng, YAN Ren-kai, ZHANG Zhi-yi, WANG Ling, NI Cheng-fan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 75-80. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.013

Abstract （103）

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To clarify the effects of biodegradable plastic films made of different materials on the growth and development of Capsicum frutescens, field experiments were conducted using polyethylene plastic films （PE）, natural product films （PM₁, PM₂）, synthetic polymer degradable films （PBAT, PHA, etc.）（PM₃, PM₄, PM₅） to observe the warming effect of different plastic films, gegradation properties and growth characteristics of Capsicum frutescens under different plastic film covers. The results showed that the early stage of Capsicum frutescens growth （0~52 days after film mulching） was the main period of temperature increase by mulching, and plastic mulching planting mainly increased the soil temperature of 0~5 cm and 5~10 cm soil layers during this period. Among them, the warming effect of PM₅ was similar to that of PE, with an average temperature increase of over 2 ℃ in the 5~10 cm and 10~15 cm soil layers compared to CK （open field planting）. The height of chilli plants grew significantly from 24 to 47 d after mulching, with an average increase of about 20.28 cm. After 39 days of film mulching, PM₅ was increased by approximately 8.2 cm compared to CK; there were significant differences in the chlorophyll SPAD of Capsicum frutescens with different film mulching treatments after 23 days of film mulching, with PM₅ and PE significantly higher than CK, increased by 5.67 and 3.70, respectively. The effect of plastic film mulching on Capsicum frutescens showed that the cumulative yield of PM₃, PM₄ and PM₅ was significantly higher than that of CK, with an increase of 4 123, 4 445 kg/hm² and 5 552 kg/hm², respectively, and their yield increases were close to or better than that of PE, of which the effect of PM₅ on chilli yield enhancement was the most obvious. Therefore, it was recommended to use biodegradable mulch with a thickness of 0.01 mm, mainly composed of PBAT and PHA, for open-air cultivation of Capsicum frutescens.

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Evaluation and technical analysis of the ecological planting model of Polygonatum sibiricum in Shaanxi Province

LI Gang, ZHANG Xin-fei, GUO Ming-hao, WANG Shi-qiang, WANG Zhe-zhi, NIU Jun-feng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 81-84. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.014

Abstract （98）

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Polygonatum sibiricum from Shaanxi Province was taken as the research object, and the ecological planting technology of Polygonatum sibiricum in Shaanxi Province was systematically analyzed and evaluated. The results showed that the current planting patterns of Polygonatum sibiricum in Shaanxi Province were mainly divided into two types： Underforest planting and intercropping planting patterns. Planting Polygonatum sibiricum under the forest could effectively utilize the land resources in Shaanxi Province and form a good ecological environment. The intercropping mode of Polygonatum sibiricum created a good rhizosphere environment for the growth of Polygonatum sibiricum, improved the agro-ecological environment, and promoted the regeneration and recycling of resources.

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Effect of humic acid water soluble fertilizer on the growth of loquat seedlings

XU Ya-xin, CHEN Ming-min, XIANG Yin-chun, LIN Li-jin, ZHANG Hui-fen, LUO Xian, DENG Qun-xian

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 85-89. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.015

Abstract （99）

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In order to study the effect of foliar spraying humic acid water soluble fertilizer on the growth of loquat[Eriobotrya japonica （Thunb.） Lindl.] seedlings, the effects of humic acid water soluble fertilizer with different dilution ratios （700, 1 000, 1 300 and 1 600 times） on the biomass, taking spraying equal amount of water as contrast（CK）, photosynthetic pigment content and antioxidant enzyme activity of Dawuxing loquat seedlings were determined. The results showed that foliar application of different concentrations of humic acid water soluble fertilizer increased the biomass and photosynthetic pigment content of the stem and leaf of loquat seedlings, and the effect was the best at 1 000 times. The activities of peroxidase（POD） and catalase（CAT） and superoxide dismutase （SOD） of loquat seedlings were increased by 1 000 and 1 300 times of humic acid water soluble fertilizer. The stem and leaf biomass of loquat seedlings were positively correlated with chlorophyll a, chlorophyll b, carotenoid content, POD activity, SOD activity and CAT activity. Therefore, foliar spraying humic acid water soluble fertilizer could promote the growth of loquat seedlings, and the best was 1 000 times.

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Experiment on acute toxicity of different processed products of the stem and root of Toddalia asiatica to mice

CHEN Long, CHEN Xiao-yan, ZHANG Miao, LUO Jing, DENG Ling-yu, ZHU Hua, XU Li-ba

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 90-95. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.016

Abstract （102）

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The purpose was to understand the acute toxicity of different processing methods of the stems and roots of Toddalia asiatica on mice. After adaptive feeding for 3 days, 130 KM mouses were randomly divided into 13 groups, including the solvent control group and 12 drug-treated groups（including 1 group of raw stem product, 5 groups of processed stem products, 1 group of raw root product and 5 groups of processed root products. Processed products of stems and roots covered 5 categories： Boiled products, washed products, steamed products, wine steamed products and wine roasted products）. Mice in the solvent group were given pure water at a dose of 40 mL/kg by gavage for 3 times with an interval of 4~5 h. Mice in the drug-treated group of stem and its processed products were given 40 mL/kg by gavage for 3 times with an interval of 4~5 h. Mice in the drug-treated group of root and its processed products were given by gavage at the rate of 30 mL/kg twice, with an interval of 4~5 h. The main clinical symptoms and weight changes of mice in each group were recorded for 14 days after administration, and the mortality rate was counted. The results showed that Toddalia asiatica and its processed products could have acute toxic effects on mice and the clinical symptoms of toxicity included decreased voluntary activity, inactivity, prone position and disappearance of righting reflex. Compared with the solvent control group, the processed products of stems and roots could significantly reduce the weight of mice within 14 d, and the mortality rate was significantly higher than that of the solvent group（P<0.05 or P<0.01）. Compared with the raw product group, the five processed products of stems and roots had no significant effect on the weight of mice within 14 d, and effectively reduced the mortality of mice, and the best effect of reducing toxicity was the boiling method. Boiling, washing, steaming with water, steaming with wine and roasting with wine reduced the toxic effects of raw stems and roots of Toddalia asiatica on mice, but had no significant effects on body fat of mice.

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Fresh-keeping effects of different preservative combinations on cut Gerbera jamesonii

YANG Xiu-mei, ZHANG Yi-ping, ZHAO A-xiang, WANG Li-hua, QU Su-ping

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 96-101. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.017

Abstract （94）

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Using Gerbera jamesonii Bolus Zhenai as the sample, the effects of the combination of preprocessing solution and vase preservation solution on malondialdehyde （MDA） content, cell membrane permeability, bacteria content and vase life of Gerbera jamesonii fresh-cut flowers were tested. The results showed that after 12 h treatment with preprocessing solution, MDA content and colony forming units （CFU） of Gerbera jamesonii fresh-cut flowers were significantly lower than those of the control group（deionized water） and preprocessing could decrease relative permeability of cell membrane in petals. During vase treatment, MDA content and membrane permeability of Gerbera jamesonii fresh-cut flowers decreased firstly and then increased, reaching the peaks at 14 d. CFU in anthocaulus and vase preservation solution increased gradually throughout the vase treatment. Vase preservation solutions of Chrysal cut flower food and Oasis flower food-liquid showed relatively good antibacterial effects. Chrysal professional 1 and Chrysal cut flower food were the solution combination with the best preservation effect, which could prolong vase preservation life of cut flowers, significantly. Cumulative values of MDA content, membrane permeability and CFU in preprocessing and vase preservation period were significantly lower than those of the control group.

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Study on fresh processing technology and feasibility of Phellodendron chinense in the production area

HUANG Hao, HU Chang-qiang, DUAN Yuan-yuan, GUO Xiao-liang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 102-105. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.018

Abstract （80）

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In order to optimize the fresh processing technology of Phellodendron chinense, and verify its feasibility, the orthogonal experimental design was used to investigate the effect of process parameters on the quality of Phellodendron chinense shreds, and the quality evaluation of Phellodendron chinense shreds processed while fresh was carried out. The results showed that the initial drying temperature had a significant effect on the quality of Phellodendron chinense shreds. The initial drying temperature, initial degree of dryness and redrying temperature had extremely significant effects on the processing efficiency of Phellodendron chinense shreds. Considering the quality, drying time, and energy consumption, the optimal processing technology was natural drying or drying at 45 ℃ to 43%~50% water content before cutting into shreds, and then drying at 45 ℃ until the water content was not higher than 12%. The properties, moisture, total ash, extract, berberine and phellodendrine contents of Phellodendron chinense shreds produced from fresh processing were all in line with the requirements of Pharmacopoeia of the People’s Republic of China, and the quality was not significantly different from that of Phellodendron chinense shreds sold in the market, which was superior to the Phellodendron chinense shreds produced by traditional methods. Therefore, it was feasible to replace the traditional method with fresh processing at the source.

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Grafting propagation technology of Michelia×alba

YANG Li-ping, LI Fang-fei, YANG Qiong, WEI Dong-ling, CHEN Li-wen, SHI Qun, WANG Peng-liang, CHEN Nai-ming

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 106-111. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.019

Abstract （81）

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In order to explore the affinity difference of different rootstock and scion combinations of Michelia × alba grafted seedlings and the related factors affecting the growth of Michelia × alba grafted seedlings, six different rootstocks of Michelia macclurei Dandy, Michelia champaca Linn., Michelia chapensis Dandy, Michelia maudiae Dunn, Magnolia delavayi Franch. and Michelia × alba were grafted by cutting; the differences of grafting time, rootstock diameter class and substrate type were also studied. The results showed that December was the most suitable time for Michelia × alba grafting; the rootstock type had an effect on the growth and flowering of grafted seedlings. The survival rate of grafted seedlings of Michelia × alba and Michelia macclurei Dandy was higher than that of the other four rootstocks, up to 94.0%, but the grafted seedlings with Michelia macclurei Dandy as rootstock grew fastest; different rootstock types of Michelia × alba grafted seedlings had different budding periods. The Michelia × alba grafted seedlings with Magnolia delavayi Franch. as rootstock had the earliest budding period, and the budding rate was 68.2% after four months of grafting, and the budding rate of the self-rooted seedlings was the lowest, only 12.7%. The rootstock diameter class had an effect on the survival rate of grafted seedlings. When the rootstock ground diameter was greater than 0.8 cm, the survival rate of grafted seedlings was the highest, reaching 94.1%. When the rootstock ground diameter was less than or equal to 0.5 cm, the survival rate of grafted seedlings was significantly reduced. The survival rate and growth of grafted seedlings were affected by the seedling culture medium. The survival rate and growth of seedlings in the medium of 70.0% yellow core soil∶25.0% peat soil∶4.5% rice bran and 95.0% yellow core soil∶4.5% rice bran combined with 0.5% long-term controlled-release fertilizer were better than other combinations. There were many factors affecting the quality of grafted seedlings. The results of the study showed that the rootstock type affected the survival rate and flowering characteristics of grafted seedlings; grafting time, rootstock diameter class and substrate type all had effects on seedling survival rate and growth.

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Effects of three growth regulators on shoot growth and fruit quality of winter jujube cultivated in facilites

WU Yu-rong, ZHANG Dong-hai, CUI Yu-xue, ZHENG Qiang-qing, NIU Ling-lei, JI Guang-peng, QIAN Dan-dan, CHANG Xin-yi

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 112-115. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.020

Abstract （94）

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The effects of three growth regulators, including prohexadione calcium, paclobutrazol and uniconazole, on the growth of new shoots and fruit quality of 3-year winter jujube were investigated. With water as the control, three regulators of prohexadione calcium, uniconazole and paclobutrazol were sprayed, and nine treatments with three concentrations of 100, 300 and 500 mg/L were set, respectively. The shoots were sprayed twice during the growth period, and the growth of new shoots was observed by fixing the plant and branches. The quality of fruit was determined after ripening. The results showed that 100~300 mg/L of prohexadione calcium, uniconazole and paclobutrazol had an inhibitory effect on the growth of new shoot length, and prohexadione calcium had the best effect on the growth of new shoot thickness, and 100 mg/L of prohexadione calcium and uniconazole could effectively inhibit the growth of new shoot internode. The chlorophyll SPAD value of each treatment increased. The tree growth control effect of the three kinds of regulators was better than that of the control group, and the comprehensive index of 300 mg/L prohexadione calcium treatment was the best, which could promote the thickening of new shoots, inhibit the vigorous growth of new shoots, and increase chlorophyll content and single fruit weight to improve fruit quality.

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Prediction of potential distribution of Schisandra chinensis and Schisandra sphenanthera based on MaxEnt model and analysis of its important influencing factors

ZHANG Di, XUE Ming-ke, LIU Ming, SHANG Xiao-feng, ZHANG Xu-tong, LIU Jin-na

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 116-121. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.021

Abstract （93）

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Based on the geographical distribution records of 184 Schisandra sphenanthera, 129 Schisandra chinensis and 23 environmental factors, the maximum entropy （MaxEnt） ecological niche model was used to predict the potential suitable distribution areas of Schisandra sphenanthera and Schisandra chinensis. The main environmental factors restricting their geographical distribution were evaluated. The results showed that the area under the curve （AUC） of the training set and verification set of MaxEnt model of Schisandra chinensis and Schisandra sphenanthera were both greater than 0.90, and the prediction results of established models were accurate. The best habitats of Schisandra chinensis were mainly distributed in Changbai Mountain area of Liaoning Province and Jilin Province and Beijing City. The best habitats of Schisandra sphenanthera mainly distributed in Qinba Mountain area, Wuling Mountain Range of Hunan Province, Chenzhou City, Zhuzhou City and Hengyang City, Jinhua City of Zhejiang Province and other areas. The important environmental factors limiting the growth of Schisandra chinensis were precipitation in the wettest month, maximum temperature in the hottest month, soil pH, average precipitation in the warmest season, average precipitation in the coldest season and the monthly mean temperature difference between day and night. The environmental factors limiting the distribution of Schisandra sphenanthera were the lowest temperature in the coldest month, the average annual precipitation, the variance of temperature change and the variance of precipitation change. The potentially suitable areas of Schisandra sphenanthera and Schisandra chinensis showed regional distribution.

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Analysis of alcohol dehydrogenase in tissues and organs of different genders of Microtus fortis

WAN Xiang-xu, ZHOU Bao-li, HUANG Xiao-ran, JIN Zhi-min, LIU Chun-yan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 122-124. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.022

Abstract （71）

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In order to study the physiological and biochemical aspects of typical harmful rodents in agricultural and forestry areas, the PAGE electrophoresis was used to establish and analyze the distribution and activity of alcohol dehydrogenase in tissues and organs of different genders of Microtus fortis. The results showed that ethanol dehydrogenase was expressed in tissues and organs of different genders of Microtus fortis, and the expression of this enzyme showed certain differences among different genders of Microtus fortis.

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Study on the coupling pattern and driving factors of feed industry development and aquaculture scale in China

XU Yu-xuan, QIANG Feng-jiao

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 125-130. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.023

Abstract （88）

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In order to scientifically evaluate the coordinated development relationship between China’s feed industry and aquaculture industry and identify the main factors driving coupling coordination, based on the provincial panel data from 2015 to 2019, the coupling pattern and driving factors of feed industry development and aquaculture scale were studied by using entropy method, coupling coordination model, radar map, spatial visual expression, linear regression and other methods. The results showed that： ①The development of China’s feed industry showed a pattern of “high in the south, low in the north, high in the east and low in the west”; ②The scale of aquaculture industry presented a pattern of “high in the surrounding areas and low in the central areas”; ③The coupling and coordination degree between the development of feed industry and the scale of aquaculture industry was in the pattern of “high in the east and low in the west, and high in the surrounding areas and low in the central areas”; ④The coupling and coordination level of most provinces had not significantly improved in recent five years; ⑤The long-term dominant factor in the coupling imbalance area between the development of feed industry and the scale of aquaculture was the scale of animal husbandry, and the long-term dominant factor in the coordination area was the management and maintenance ability of feed enterprises. In view of this, the government could promote the coordinated development of feed industry and breeding industry by guiding the joint production of small and medium-sized feed enterprises and introducing talents.

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Optimization of extraction process of flavonoids from Scutellaria baicalensis stem and leaf by response surface methodology and its content determination

YAN Jie, ZHANG Si-fang, MAO Xian-xian, XU Chen-xin, LIU Bei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 131-137. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.024

Abstract （79）

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The effects of ethanol concentration, solid-liquid ratio, extraction time and extraction temperature on the extraction of flavonoids from Scutellaria baicalensis stem and leaf were investigated by single factor and response surface experiment. On this basis, the contents of flavonoids in 17 Scutellaria baicalensis stems and leaves were determined by HPLC. The results showed that the optimum extraction condition of flavonoids in Scutellaria baicalensis stem and leaves was ethanol concentration of 55%, solid-liquid ratio of 1∶50, extraction time of 60 min and extraction temperature of 50 ℃. Under the optimal extraction process,the extraction amount of flavonoids was 24.43 mg/g. The contents of total flavonoids in Scutellaria baicalensis stem and leaf from different regions were different, ranging from 15.839 mg/g to 26.044 mg/g. The response surface methodology was stable, accurate and reliable to optimize the extraction process of total flavonoids from Scutellaria baicalensis stem and leaf. The established method for the determination of flavonoids content was stable and reliable, which could provide a reference for the quality evaluation and further development of Scutellaria baicalensis stem and leaf.

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Optimization of the process of diced Rhei Radix et Rhizoma fresh processing on origin by orthogonal test

HUANG Hao, HU Chang-qiang, DUAN Yuan-yuan, GUO Xiao-liang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 138-141. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.025

Abstract （82）

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To optimize the process of diced Rhei Radix et Rhizoma fresh processing on origin, the effects of slice thickness, drying temperature before slicing, drying degree and drying temperature after slicing on water content, free anthraquinone, total anthraquinone and drying time of diced Rhei Radix et Rhizoma were investigated by orthogonal test. The results showed that the influence of four factors on the total anthraquinone content of diced Rhei Radix et Rhizoma was not significant. The slice thickness and drying temperature before slicing had significant effects on the free anthraquinone content of diced Rhei Radix et Rhizoma. The drying degree had an extremely significant effect on the moisture content of diced Rhei Radix et Rhizoma. All factors had significant or extremely significant effects on the total drying time of diced Rhei Radix et Rhizoma. The best processing technology of diced Rhei Radix et Rhizoma fresh processing on origin was as follows： The first step was to cut fresh Rhei Radix et Rhizoma rhizomes into 12 mm thick slices; the second step was to dry the slices at 60 ℃ until the water content was 60%; then, the slices should be diced to 12 mm length and 12 mm width; finally, the diced Rhei Radix et Rhizoma should be dried at 70 ℃ to a moisture content below 13%. With the above processing technology, the content of free anthraquinone of diced Rhei Radix et Rhizoma was higher, the drying time was shorter and the content of total anthraquinone was not significantly decreased.

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The effect of peach gum edible coatings on the preservation of strawberry

YU Qing-qing, DING Yong-gang, GONG Bo, LIU Xin

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 142-147. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.026

Abstract （97）

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The peach gum solution was treated at 121 ℃ for 20 min to prepare 1%, 2%, 5% and 10% peach gum film solutions. The dipping method was used to form a uniform edible film on the surface of strawberries. The effect of peach gum film on preservation of the strawberry was analyzed by sensory evaluation and physicochemical indexes （hardness, weight loss rate, pH, titratable acid content, vitamin C and soluble solid content）. The results showed that the homogeneity and viscosity of peach gum solution after high temperature treatment were improved, and the 1%~5% peach gum solutions had good film-forming performance. The edible peach gum film at 5% concentration had the best preservation effect, which could delay the color change of strawberries, reduce the loss of fresh fruit quality, and decrease the change of pH and titratable acid as well as the loss of vitamin C and soluble solid content, and the preservation effect was better than that of PE plastic wrap. Peach gum could be used to prepare edible preservation film after heat treatment, which had potential application value in the field of fruit and vegetable preservation.

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Effects of different drying methods on the contents of triterpenes and pachymic acid of Poria cocos

YU Zheng-yong, XU Yu-sheng, ZHAO Ning-dong, HUANG Zai-qiang, TAIN Ying-qiu, HU Zhan-yu, LI Jia-ping, GAO Ming-ju

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 148-152. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.027

Abstract （78）

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The fresh Poria cocos were dried by different drying methods （natural drying, drying at 60 ℃, drying at 80 ℃, drying at 105 ℃ and freeze drying）. The contents of triterpenes and pachymic acid of dried Poria cocos were determined, and the effects of different drying methods on the contents of triterpenes and pachymic acid were compared. The results showed that the contents of triterpenes and pachymic acid in Poria cocos were freeze drying > drying at 105 ℃ > drying at 80 ℃ > drying at 60 ℃ > natural drying. Under the freeze drying process, the triterpenes and pachymic acid contents of Poria cocos were up to 8.95% and 6.89%, respectively, and the triterpenoids and pachymic acid contents of natural drying Poria cocos were the lowest. The best drying method of Poria cocos was determined to provide reference for the selection of the post-processing technology of Poria cocos.

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Changes in the physical and chemical properties of Yunyan116 during the curing process of different curing processes

CHEN Fei-cheng, WANG Shi-yu, XU Zhi-qiang, WANG Ai-xia, SUN Zhan-wei, ZHOU Zhong-yu, BAI Jin-ying, WANG Ya-fei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 153-158. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.028

Abstract （92）

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Taking Yunyan116 as the material, different curing process tests were set up, with the three-stage curing process as T1, the optimized curing process of Yunyan116 as T2 and the local curing process as CK, to analyze the changes of moisture, color and conventional chemical composition during the curing process of Yunyan116 by different curing processes, and to evaluate the process suitability by the coordination of yellowing and dehydration during the curing process. The results showed that T2 had a drying rate of up to 0.015 g/h in the main yellowing stage, which was more advantageous in reducing the moisture ratio. Compared with other curing processes, T2 positively contributed to the stabilization of the color change, yellowing and dehydration coordination degree during the tobacco curing process. The starch and protein of tobacco leaves were significantly degraded by the effect of Yunyan116 optimized curing process, and the advantages in total sugar and reducing sugar formation and accumulation were more obvious. The optimized curing process based on Yunyan116 provided theoretical support for the optimal regulation of physical and chemical properties during the curing of Yunyan116.

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Quality characteristics analysis of Peucedanum praeruptorum Dunn. under different cultivation conditions

SHI Ding-fu, ZHOU Hai-bo, ZHANG Lu, YU Teng, CHEN Ju-yi, CHENG Fu-qi

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 159-163. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.029

Abstract （84）

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To determine the content of Peucedanum praeruptorum Dunn. A and Peucedanum praeruptorum Dunn. B in the medicinal herb Peucedanum praeruptorum Dunn. from different regions and under different planting conditions, and to analyze the factors affecting the quality of the medicinal herb, the high-performance liquid chromatography and a C18 column （4.6 mm×250 mm, 5 μm） were used. The mobile phase was methanol-water （volume ratio of 75∶25）, with a flow rate of 1.0 mL/min, column temperature of 30 ℃, and detection wavelength of 321 nm.When the content of Peucedanum praeruptorum Dunn. A and Peucedanum praeruptorum Dunn. B was 5.0~400.0 μg/L and 2.5~20.0 μg/L, respectively,the linear relationship was good;the relative standard deviations of peak areas for Peucedanum praeruptorum Dunn. A and Peucedanum praeruptorum Dunn. B were 0.04% and 0.05%, respectively. Research had shown that at an altitude of 100~800 meters, the content of Peucedanum praeruptorum Dunn. A in Peucedanum praeruptorum Dunn. did not show significant changes with altitude, but all met the requirements of “Pharmacopoeia of the People’s Republic of China（2020 edition）”;the content of Peucedanum praeruptorum Dunn. B showed an overall upward trend with increasing altitude. As the altitude increased, the temperature difference between day and night increased, which was conducive to the enrichment of Peucedanum praeruptorum Dunn. B;compared to the application of nitrogen, phosphorus, and potassium compound fertilizers, animal manure fermentation organic fertilizer could increase the content of two coumarin compounds; the application of trace element fertilizer on the basis of nitrogen, phosphorus and potassium compound fertilizer was beneficial for the enrichment of Peucedanum praeruptorum Dunn. B.

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Optimization of extraction process and content determination of total flavonoids from Polygonum chinense L. produced in Guangxi

LUO Jing, WEI An-da, ZHU Hua, XIE Feng-feng, HUANG Guo-dong, HUANG Piao-ling, YANG Wen-qi, DENG Ling-yu, LIN Si, QIN Hui-zhen

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 164-168. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.030

Abstract （106）

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The content of total flavonoids in Polygonum chinense L. was determined by UV visible spectrophotometry. The content of total flavonoids was used as the evaluation index, and the extraction method, solvent, solid-liquid ratio, extraction time, and extraction frequency were used as the evaluation factors, on the basis of single factor experiments, L₉（3³） orthogonal design was used to optimize the extraction process of total flavonoids in Polygonum chinense L.. The optimal extraction process was 70% ethanol extraction solvent, with a solid-liquid ratio of 1∶70 （m/V）, ultrasonic extraction for 45 minutes, and extraction twice. Using rutin as a reference substance, its absorbance was measured at a wavelength of 500 nm, with an average recovery rate of 98.76% and a relative standard deviation of 1.72%. The results showed that the total flavonoids content of Polygonum chinense L. from 13 production areas ranged from 22.205 4 to 52.173 7 mg/g, with a relative standard deviation （RSD） of 1.07% to 2.81%. The total flavonoids content in 13 production areas was ranked as follows： Guilin City,Nanning City, and Yulin City,Baise City,Hezhou City,Hechi City,Guigang City,Fangchenggang City,Qinzhou City,Wuzhou City,Laibin City,Chongzuo City,Liuzhou City from high to low. This method had good precision, stability, and repeatability, and could be used as a basis for the quality evaluation of Polygonum chinense L. produced in Guangxi.

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Extraction of Eeannis jacobssoni disaster area based on MODIS-MOD09Q1 data and analysis of its adaptive climate characteristics

QING Ge-le, HUANG Xiao-jun, BAI Li-ga, Ganbat Dashzebeg, Tsagaantsooj Nanzad, Altanchimeg Dorjsuren, Davaadorj Enkhnasan, Mungunkhuyag Ariunaa

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 169-176. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.031

Abstract （73）

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Using MODIS-MOD09Q1 remote sensing data, three easily obtainable and responsive indicators, namely Normalized Difference Vegetation Index （NDVI）, Ratio Vegetation Index （RVI）, and Near Infrared Reflectance （NIR）, were used to classify the changes in vegetation index for the degree of damage in disaster areas, and a comprehensive pest index （PCI） model was constructed to achieve rapid extraction of information from the Eeannis jacobssoni disaster area. On this basis, with the help of temperature and precipitation data, combined with GIS spatial overlay analysis method, the climate characteristics suitable for pest growth were revealed. The results showed that using the comprehensive pest index could accurately extract the severity information of pest disaster areas, with an overall accuracy and Kappa coefficient of 85.00% and 0.81, respectively;Eeannis jacobssoni was suitable for climates with less precipitation in winter and spring, more precipitation in summer, and temperatures that should not be too high, which was consistent with its biological characteristics. This climate was similar to the Greater Khingan Mountains forest area, with a high risk of invasion, and should be highly valued by the Chinese forestry department.

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Design and implementation of IoT intelligent irrigation system for agriculture based on AT80C51 microcontroller

CHE Peng-fei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 177-184. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.032

Abstract （121）

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An IoT irrigation system based on the AT80C51 microcontroller had been developed to address the issues of unintelligent and untimely irrigation in traditional artificial irrigation methods,the system could obtain the environmental conditions of farmland through temperature and humidity sensors and transmit them to remote data centers through wireless communication modules. At the same time, the system was equipped with irrigation system threshold control equipment, which could adjust and control the pumping pump as needed. When the system determined that the farmland soil was dry, the environmental conditions triggered the system threshold and pumped water for irrigation in a timely manner, ensuring that the soil always maintained a suitable temperature and humidity.Through simulation experiments and actual testing, greenhouse lettuce at different growth stages in spring and summer was taken as the research object. Under intelligent irrigation, the average fresh weight of each plant above ground increased by at least 11.31% compared to traditional artificial irrigation;the average drainage of intelligent irrigation in spring and summer was 64.96% and 63.47% lower than that of traditional artificial irrigation, respectively;the irrigation water efficiency of intelligent irrigation in spring and summer was 68.03% and 98.61% higher than that of traditional artificial irrigation, respectively. The system operated stably, and the relevant experimental data and phenomena met expectations.

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Agricultural product price prediction based on the PSO-Prophet model with integrated influencing factors

LIU He-bing, WANG Yi-fei, WANG Lei, XI Lei, SHANG Jun-ping

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 185-189. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.033

Abstract （103）

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In order to improve the accuracy of price prediction, factors such as the consumer price index （CPI） and economic policy uncertainty index （EPU） were incorporated into the Prophet model, and the particle swarm optimization algorithm was used to optimize the parameters. Using the daily price data from the International Garlic Trade Network, this method was applied to predict the price of garlic in Shandong Province. The results showed that the mean absolute error （MAE）, mean absolute percentage error （MAPE）, and root mean square error （RMSE） of the garlic price prediction results on the PSO-Prophet model with integrated influencing factors were reduced by 82.88%, 82.86%, and 77.49%, respectively, compared to the Prophet model. The PSO-Prophet model with integrated influencing factors could effectively improve prediction accuracy.

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Research on the value quantitative analysis model of cigarette formula module

WANG Lin, ZUO Ping-cong, YAN Tie-jun, GUAN Yu-han, ZHOU Ping, WU Qing-hua

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 190-194. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.034

Abstract （76）

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In response to the shortcomings of subjectivity and blindness in traditional formula module quality evaluation methods, as well as the significant deviation between the quality of the formula module and its actual production and use,this study proposed a value calculation scheme for the formula module based on historical production data, mining the actual usage of the formula module and measuring the relationship between the value and quality of the formula module. The calculation results of this scheme were used as indicators to characterize the comprehensive quality of the formula module, and the rationality of the calculation results was verified using BP neural network algorithm and statistical analysis methods. The results showed that sensory indicators （aroma, smoke, taste, aroma type） were significantly positively correlated with grade, while chemical indicators （nicotine CV, sugar to alkali ratio） were not significantly correlated with grade. Grade as an evaluation scheme for the quality of the formula module was too subjective. The value of the formula module was significantly correlated with sensory and chemical indicators, indicating that the value of the formula module combined subjective and objective indicators, making it more suitable to represent the quality of the formula module;the value calculation scheme of the formula module fully considered the characteristics of actual production and operation of the cigarette, which was more in line with production reality and could provide better guidance for the production and use of the formula module of the cigarette.

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Building recognition and automated monitoring of occupying farmland for construction based on deep learning：Taking X Village in Changsha City, Hunan Province as an example

SHI Shan, HU Bing, YANG Cong-rui

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 195-198. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.035

Abstract （93）

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In response to the common phenomenon of occupying farmland for building houses in rural areas, an automated monitoring method based on deep learning and image analysis was proposed. By preprocessing high-resolution remote sensing image data, an automated monitoring model based on convolutional neural networks was constructed to effectively determine whether each pixel cell in the target image occupied farmland for building houses. Taking X Village in Changsha City, Hunan Province as an example, horizontally compared the recognition capabilities of U-Net, SegNet, and DeepLabV3p models were. The results showed that when the learning rate was 0.01, the batch size was 2, and the number of iterations was 100, the U-Net model had the best recognition results for buildings;the model found a total of 66 cases of potential occupation of farmland for building houses, with high recognition accuracy and less time consumption;this model fully utilized modern information technology and methods, which could improve the efficiency of land law enforcement and supervision to a certain extent and save work time and resources.

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Research on remote sensing identification of abandoned farmland in agricultural and animal husbandry interzone：Taking Ledu District, Haidong City, Qinghai Province as an example

YE Peng-shuai, YANG Hai-zhen, MA Tao, HU Bi-xia, BAO Xi-wen, ZHAO Zhi-zhong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 199-205. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.036

Abstract （93）

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In order to achieve timely and accurate identification of farmland, remote sensing technology was used to identify and extract abandoned farmland in the agricultural pastoral transitional zone, and to understand the spatial distribution characteristics of abandoned farmland.Based on the Google Earth Engine （GEE） platform, the study area’s Sentienel-1 and Sentienel-2 remote sensing images were called and preprocessed. The random forest algorithm was used to conduct land use classification research in the study area,and obtain the monthly maximum NDVI composite data of the study area from 2017 to 2022 through the GEE platform. Combined with the NDVI summer and spring differences and NDVI summer and autumn differences of abandoned and non abandoned farmland samples, segmentation thresholds to extract abandoned farmland in the study area were set. The results showed that the overall classification accuracy OA of the study area from 2017 to 2022 was ≥0.85, and the Kappa coefficient was ≥0.80. The overall classification effect was good, and it could be used for subsequent farmland extraction;from a horizontal scale, the abandoned farmland in the study area was mainly distributed in the north-south mountainous areas, followed by along the banks of the Huangshui River;from a vertical scale perspective, as the altitude increased, the abandonment rate followed a normal distribution, with abandoned farmland concentrated between 2 000 and 2 500 meters. The abandonment rate increased with the increase of slope, which was closely related to the decline in farmland quality and the difficulty in utilizing agricultural machinery caused by the increase of slope.Compared to traditional land use remote sensing classification research, abandoned farmland identification research conducted using the GEE platform could quickly obtain the distribution of abandoned farmland at the regional scale, providing reference for extracting abandoned farmland and land use protection in the region.

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Optimization of the ISSR system and primer screening for caulis spatholobi

LI Jin-mei, WANG Yi-ting, PAN Li-mei, HUANG Xiao-dong, TAN Yong, RU Mei, LIU Wen

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 206-211. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.037

Abstract （71）

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The stem of caulis spatholobi was used as the experimental material for DNA extraction using the improved CTAB method. The ISSR-PCR reaction system was optimized and constructed using orthogonal and single factor experiments. The results showed that the optimal ISSR-PCR reaction system for caulis spatholobi was DNA template 60 ng, Taq enzyme 2.00 U, Mg²⁺ concentration 1.75 mmol/L, dNTP concentration 0.25 mmol/L, primer concentration 0.20 μmol/L, and optimal annealing temperature 44.6 ℃. 20 ISSR primers suitable for caulis spatholobi from were selected 100 ISSR primers.

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Population genetic structure analysis of camellia anthracis fungus in the main oil tea producing areas of China

WANG Yi-xun, XU Xiao-wen, ZHENG Lu, HUANG Jun-bin, XIE Xian-bin

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 212-217. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.038

Abstract （83）

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Using 168 strains from 16 geographical populations of camellia anthracis fungus （Colletotrichum camelliae Abel.）, a dominant species of camellia anthracis in the main camellia producing areas of China, as the test materials, ISSR molecular marker technology was used to analyze genetic diversity and population genetic structure. The percentage of polymorphic loci （PPB） for 16 geographical populations was 98.99%, the Nei’s gene diversity index （He） was 0.28, the Shannon information diversity index （Is） was 0.43, the average genetic similarity （I） was 0.834, and the average genetic distance （D） was 0.183. This indicated that the genetic diversity level and heterogeneity of camellia anthracis fungus were high, and there was a certain degree of genetic variation among populations. There was no correlation between genetic distance and geographical distance. The total genetic diversity （Ht）, genetic differentiation coefficient （Gst）, and gene flow （Nm） of the five provincial-level populations in Hubei, Zhejiang, Jiangxi, Hunan, and Guangxi provinces were 0.274 8, 0.517 4, and 0.466 4, respectively. This indicated that although the five provincial-level populations of camellia anthracis fungus were differentiated, there was no gene flow phenomenon （Nm<1）.

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Study on the coupling coordinated development of new urbanization and ecological environment in Fuzhou City

ZHANG Guo-jing, LIU Ping-hui, ZHU Chuan-min

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 218-224. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.039

Abstract （73）

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Taking Fuzhou City as the research area, the coupling coordination evaluation index system between new urbanization and ecological environment in Fuzhou City was constructed, and the development degree and coupling coordination of new urbanization and ecological environment in Fuzhou City from 2010 to 2021 were analyzed. The results showed that the new urbanization and ecological environment development level was on the rise overall in Fuzhou City from 2010 to 2021, and its coupling coordination degree was increased from 0.259 6 to 0.654 1 at this stage. The level of coupling coordinated development of new urbanization and ecological environment had also changed from moderate imbalance to moderate coordination, with the degree of coupling coordination increasing year by year, and the overall performance was the lag type of urbanization. Therefore, it was proposed to correctly understand the dynamic coupling relationship between urbanization and ecological environment, adopt the urbanization development strategies suitable for Fuzhou City combined with the development status of Fuzhou City, at the same time take into account the development speed and development quality, and unswervingly take the road of green development, to ensure the coordinated development of urbanization and ecological environment.

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Research on coupling coordination between agricultural modernization and new urbanization in Jiangsu Province

ZHU Ting, CHEN Zhi-hao

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 225-231. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.040

Abstract （65）

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Taking Jiangsu Province as the research object, the coupling coordination relationship between agricultural modernization and new urbanization in Jiangsu Province from 2012 to 2021 was calculated and analyzed by using the entropy method and coupling coordination model. The results showed that the development level of agricultural modernization and new urbanization in Jiangsu Province was on the rise as a whole, and there were great regional differences between them. The coordinated development of agricultural modernization and new urbanization in Jiangsu Province presented the characteristics of regional imbalance, and the three regions of southern Jiangsu, central Jiangsu and northern Jiangsu presented different development models, showing the characteristics of differentiation in time and space. In view of this, some suggestions of adapting to local conditions and coordinating urban and rural areas were put forward, in order to provide useful reference for Jiangsu Province to formulate differentiated agricultural modernization and new urbanization policies and realize the coupling coordination of agricultural modernization and new urbanization development.

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Research on the evaluation of agricultural and rural modernization development level in Fujian Province from the perspective of industrial integration

LIU Xiao-jing, ZENG Yu-rong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 232-238. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.041

Abstract （77）

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Based on the perspective of industrial integration, an evaluation index system for agricultural and rural modernization development level in Fujian Province was constructed, and the level and regional differences of agricultural and rural modernization development in 9 cities in Fujian Province were measured and compared from both temporal and spatial dimensions. The entropy weight method was used to calculate the weight of the index system, and measure the development level of agricultural and rural modernization in Fujian Province from 2014 to 2020. Then the K-means clustering analysis method was introduced to find out the main factors affecting the development of agricultural and rural modernization in Fujian Province. The results showed that there were significant differences in the development level of agricultural and rural modernization in every city of Fujian Province, with an overall positive trend, showing a development trend of better performance in the central Fujian region, middle performance in the southern Fujian region, and backwardness in the northern Fujian region. The driving force of industrial integration and agricultural production scale were important factors that constrained the development of agricultural and rural modernization in Fujian Province. Therefore, policy recommendations such as formulating development plans tailored to local conditions, strengthening the construction of an integrated development system for agricultural industries, and deepening supply-side structural reforms were proposed.

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Study on the competitiveness and complementarity of China’s carbon-intensive industries’ trade with the US

LI Jia-yi, JI Ying-jie, FU Lei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 239-245. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.042

Abstract （69）

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Under the background of China’s “Carbon Peak” and “Carbon Neutrality” and the effective implementation of the United States’ carbon tax policy, based on the UNCOMTRADE database, CEADs database, and HS commodity classification, the input-output table to identify the carbon-intensive industries in China and the US was employed, categorizing them into traditional carbon-intensive industries and fully carbon-intensive industries. Then, the trade situation of carbon-intensive industries between China and the United States from the perspectives of competitiveness and complementarity was systematically analyzed by using empirical measurement indicators of multiple indexes. The results indicated that, compared to the traditional carbon-intensive industries in the United States, China’s traditional carbon-intensive industries had a lower level of exports, with both countries demonstrating relatively weak competitiveness and complementarity. Concerning fully carbon-intensive industries, both China and the United States were major exporters of carbon-intensive products, exhibiting concurrent trade competitiveness and complementarity. Additionally, the United States was utilizing China’s carbon emissions, leading to China incurring higher environmental costs.

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Research on the equity of basic pension insurance from the perspective of common prosperity

PING Shi-ying, WANG Huan, ZHUANG Yong-mei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 246-250. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.043

Abstract （94）

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The connotation of common prosperity includes two key words of prosperity and sharing. The realization of common prosperity requires a unified and fair basic pension insurance system to protect the welfare and rights of social members. The study found that there were three equity obstacles in the current basic pension insurance in promoting common prosperity, namely, the lack of opportunity equity of the basic pension insurance, the lack of process equity in the basic pension insurance, and the outcome equity of the basic pension insurance needed to be improved urgently. Finally, it was proposed that the new journey in the new era required a deep understanding of the connotation of common prosperity, closely related to prosperity and sharing, and constantly optimized and improved the basic pension insurance system. The current focus was to increase the coverage to ensure the opportunities equity, optimize the design of the pension security system to promote the process equity, and narrow the gap in treatment and payment to improve the outcome equity.

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The impact mechanism of new urbanization on rural residents’ consumption from the perspective of regional heterogeneity

ZHAO Jing

HUBEI AGRICULTURAL SCIENCES 2024, 63 (1): 251-256. DOI: 10.14088/j.cnki.issn0439-8114.2024.01.044

Abstract （85）

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Based on the sample data of 30 provinces and cities in China from 2016 to 2021, the impact of new urbanization on rural residents’ consumption and the intermediary role of digital inclusive finance between the two were explored, and the regional heterogeneity on this basis was further verified. The results showed that new urbanization had a significant effect on rural residents’ consumption. Digital financial inclusion played an intermediary effect in the positive impact of new urbanization on rural residents’ consumption. The analysis of regional heterogeneity showed that the new urbanization in the eastern region could promote rural residents’ consumption, while the central and western regions were obstructed. According to the research conclusions, in the context of the development of new urbanization, the government should give full play to the role of digital inclusive finance and further promote the consumption of rural residents.

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Spatiotemporal pattern evolution and influencing factors of carbon emissions from arable land in the Yangtze River Economic Belt

LIU Xuan, SUN Yan, MA Jing, ZHANG Tian-wang, CHEN Fu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 1-7. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.001

Abstract （127）

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To clarify the green utilization of arable land, the IPCC carbon emission coefficient method was used to calculate the carbon emissions of arable land in 129 prefecture-level cities of the Yangtze River Economic Belt from 2000 to 2020. Spatial autocorrelation analysis was used to reveal the spatiotemporal evolution of arable land carbon emissions, and the LMDI model was used to decompose the contributions of various influencing factors. The results showed that from 2000 to 2020, the carbon emissions from arable land in the Yangtze River Economic Belt showed a downward trend over time, showing four stages, such as “maintaining stability—rapid growth—slow growth—slow decline”. In terms of space, there was a trend of high in the middle and east and low in the west, with significant global spatial autocorrelation. Local high-high clustering areas were distributed in the middle and lower reaches of the Yangtze River, low-high clustering areas were distributed in the middle reaches, and low-low clustering areas were mainly distributed in the upstream area. The promoting factor for agricultural carbon emissions within the region was the level of agricultural economy, while the inhibiting factor was mainly agricultural production efficiency, followed by agricultural production structure, and finally the scale of agricultural labor force. Therefore, there was a significant spatiotemporal difference in carbon emissions from arable land in the Yangtze River Economic Belt. Each region should develop carbon reduction strategies and land use control plans according to local conditions, improve agricultural production efficiency, optimize agricultural planting structure, strengthen regional linkage, and promote the coordinated development of low-carbon agriculture.

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Spatial and temporal difference of carbon emission efficiency in Jiangsu Province based on super-efficiency SBM model

WANG Xiao-yue, DENG Jian-gao

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 8-12，18. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.002

Abstract （98）

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Through the super-efficient SBM model with non-expected output and Malmquist productivity index, the carbon emission efficiency of each city in Jiangsu Province from 2011 to 2020 was calculated and the spatial and temporal differences were analyzed. Results showed that there was a significant difference in carbon emission efficiency among the prefecture-level cities in Jiangsu Province, with the overall characteristics of higher carbon emission efficiency in central Jiangsu than in southern Jiangsu and higher carbon emission efficiency in southern Jiangsu than in northern Jiangsu. The innovation of technology was the core driving factor for the improvement of carbon emission efficiency in Jiangsu Province. Unreasonable resource allocation and low scale efficiency were the main reasons why the carbon emission efficiency in Jiangsu Province had not reached the production frontier.

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Research on agricultural carbon sink in Yunnan Province under the “Dual Carbon” strategy

WAN Si-qi, YUAN Yuan, FU Cheng-xiu, DONG Yun-feng, YAN Wen-guang, DONG Xiao-bo

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 13-18. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.003

Abstract （92）

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The agricultural carbon emissions and carbon sinks in Yunnan Province from 2012 to 2021 were estimated, the results showed that, the carbon sink increased from 28.884 6 million tons in 2012 to 30.549 7 million tons in 2021, but the net carbon sink of agriculture decreased from 18.978 8 million tons in 2012 to 16.564 6 million tons in 2021. Among the agricultural carbon sources, the carbon emissions during the production process of agricultural land were the largest, accounting for 71.62% of carbon emissions in 2012 and rising to 74.19% in 2021. Research had found that carbon emissions from agricultural land production were continuously increasing, and the growth rate of crop carbon absorption was slower than carbon emissions, indicating that agricultural production methods were still a key improvement direction for low-carbon development. It was suggested that agricultural emission reduction technology should focus on innovative technological development in key directions such as planting, fertilization, and irrigation. At the same time, policy guidance should be tailored to local conditions, and resources should be linked to support technological, financial, and human factors, vigorously promoting agricultural emission reduction and carbon sink increase in Yunnan Province.

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Carbon footprint of coffee production in Yunnan Province and its influencing factors

WANG Xin-hua, WANG Shuo

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 19-24,78. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.004

Abstract （102）

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Taking Yunnan Province as the research area and coffee products as the research object, the carbon footprint of coffee production in Yunnan Province was calculated, the path analysis method to explore the influencing factors of carbon footprint in the coffee production process in Yunnan Province was used, the possibility of mitigating the carbon footprint was clarified, and suggestions for achieving water saving and emission reduction goals in the coffee production process were put forward, so as to provide a practical reference for better promoting the low-carbon and green development of the coffee industry in Yunnan Province.

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The soil Cd and Pb risk threshold based on quality safety of Panax notoginseng

MENG Xi, LIANG She-wang, WU Han, LU Chun-wei, HE Zhong-jun

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 25-30. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.005

Abstract （67）

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To ensure green planting and quality safety of Panax notoginseng, the soil risk threshold of Panax notoginseng safety production in China was discussed. Physicochemical properties of soil, content and available contents of Cd and Pb in soil, and contents of Cd and Pb in the main root of Panax notoginseng were analyzed. The relationship between Cd, Pb in the main root of Panax notoginseng and soil physical and chemical properties as well as total and available Cd, Pb in soil was analyzed by linear correlation analysis. The regression equation between total available Cd, Pb in soil and Cd, Pb in the main root of Panax notoginseng was established by the regression model, and the soil available Cd and Pb threshold was inversely estimated. The results showed that the over standard rates of Cd and Pb in soil samples were 83.64% and 16.36%, respectively. The soil Cd pollution was serious and the soil Pb was at a clean level. The Pb content in the main root of Panax notoginseng did not exceed the standard, and the exceeding rate of Cd content was 29.09%. Soil pH was negatively correlated with Pb in the main root of Panax notoginseng. There was a significant positive correlation and a extremely significant positive correlation between Cd in the main root of Panax notoginseng and the soil Cd content and the soil available Cd, respectively. Pb in the main root of Panax notoginseng was significantly positively correlated with Pb content and available Pb in soil. Based on the limitation standard of Cd and Pb in the main root of Panax notoginseng, the threshold value of soil available Cd and soil available Pb was 0.27 mg/kg and 70.66 mg/kg, respectively.

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Improving effect of different amendments on coastal saline-alkali soil

WANG Li-yan, PAN Jie, ZHAO Jie, LI Meng-qi, ZHANG Hui, WANG Chun-shui, DONG Yu-chen, XIAO Hui

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 31-35. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.006

Abstract （88）

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In order to study the improvement effect of different amendments on coastal soil, a pot experiment was conducted to study the effects of calcium sulfate, aluminium sulfate, ferric sulfate, ferrous sulfate and sulfur on soil total salt, pH and ion composition. The results showed that with the different amendments applied, the content of ions in the infiltration water varied greatly. In the first leaching, the contents of Na⁺ and Cl^- in the infiltration water treated with calcium sulfate, aluminum sulfate and ferric sulfate were 54.78% and 58.25%, 35.44% and 39.22%, 32.65% and 34.82% higher than those of CK, respectively, indicating that the addition of these three amendments had a better effect on soil salinity reduction, and calcium sulfate treatment had the best effect. In the second leaching, the Na⁺content of ferric sulfate, calcium sulfate and aluminum sulfate treatment was 75.14%~347.76% higher than that of CK. Combined with two times of leaching, the results showed that calcium sulfate treatment had a more significant effect on the leaching of Na⁺ in soil. Compared with CK, the soil pH of each amendment treatment decreased to varying degrees, and the pH decreased by 2.23%~3.84%. Different amendments had different effects on soil ions. The contents of Ca²⁺ and Mg²⁺ in soil treated with amendments were higher than those of CK. Considering the effects of different amendments on soil pH, Na⁺ and Cl^-, it was suggested that ferric sulfate and calcium sulfate should be combined to improve coastal saline-alkali land.

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Meta-analysis of soil nitrate nitrogen and nitrogen leaching under conventional agricultural management in Hetao Irrigation District, Inner Mongolia

YAN Jia-le, LAI Li-ming, DONG Rui-min, YANG Yang, WANG Hai-wei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 36-40，49. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.007

Abstract （81）

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In order to controll nitrogen fertilizer amount, save water, and improve soil fertility, soil nitrate nitrogen and nitrogen leaching and their related factors were systematically explored using meta-analysis methods in terms of the data collected from the published results in the Hetao Irrigation District, Inner Mongolia. The results showed that the means of nitrate nitrogen at the 0~20 cm depth in the corn, sunflower, and spring wheat fields under conventional management were 22.78, 9.92, and 17.80 mg/kg, the means of soil nitrogen leaching were 49.82, 45.11, and 93.73 kg/（hm²·a）, and the means of conventional nitrogen （N） application rate were 357.7, 233.2, and 320.0 kg/hm², respectively. The soil nitrogen leaching resulting from the conventional nitrogen application rate was 6.76 times that from the no nitrogen fertilizer application, and the main influencing factors were soil texture, soil surface organic matter, soil surface pH, crop tape, and irrigation rate. These findings indicated that the nitrogen application rate under the conventional management in the Hetao Irrigation District was high, the soil fertility tended to decrease over time, and the nitrogen leaching was serious.

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Matching pattern of agricultural water and land resources in loess hilly areas from the perspective of water footprint：Taking Heshun County of Shanxi Province as an example

YAN Mei-xia, GUO Qing-xia, DING Yi, KANG Qing

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 41-49. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.008

Abstract （75）

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From the perspective of water footprint, the spatial and temporal changes of production water footprint and cultivated land area of main crops in rural areas of Heshun County, Shanxi Province, from 2010 to 2019 were analyzed using CROPWAT and standard deviation ellipse model, the spatial-temporal matching pattern of agricultural water and land resources in rural areas in 2010,2014 and 2019 was studied using Gini coefficient and spatial mismatch index, and the direction of regulation was clarified. The results showed that, during the study period, Heshun County’s crop production water footprint, blue water footprint, green water footprint and cultivated land area all showed a downward trend. Green water footprint contributed the most to the total water footprint of crop production in all regions, and the proportion of green water footprint in crop production water footprint in all counties and townships was more than 62.0%. The spatial aggregation of crop production water footprint and arable land resources was increasing in western Heshun County, while the spatial mismatch between crop production water footprint, blue water footprint, green water footprint and arable land resources was increasing in Heshun County, the agricultural water and soil resources in the central and eastern regions of Heshun County were moderately mismatched and severely mismatched, respectively, which would be the key areas for agricultural water and land resources control in the future. Ten townships in the county could be divided into three control areas： water conservation and storage control areas, water and land optimization regulation control areas, and diversion water-saving irrigation control areas. In general, Heshun County’s agricultural water and land resources were out of balance due to social economy, input of production factors and climatic conditions, but were controlled artificially on the basis of the division of control zones, it could still achieve a greater improvement in the matching and coordination level of agricultural water and land resources.

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Geochemical characteristics and occurrence forms of soil selenium in sorghum base of Maoba Town, Renhuai City

HUANG Xu-bin, PAN Zi-ping, SHAO Mao-yan, CHEN Ting

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 50-54，66. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.009

Abstract （68）

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The organic sorghum base in Maoba Town of Renhuai City was taken as the research object to study the geochemical distribution and occurrence form characteristics of soil selenium. The results showed that soil selenium content in sorghum base ranged from 0.24 to 1.35 mg/kg, with an average of 0.50 mg/kg, which was 1.72 times of the national soil background value. Se-enriched soil was widely distributed in the study area, accounting for 50% of the total area. The main chemical forms of soil selenium were organic-sulfide bound and elemental selenium, accounting for 57.14%. The contents of Fe-Mn oxide bound selenium, exchangeable-carbonate bound selenium and residue selenium were not much different, accounting for 14.21%, 14.19% and 12.70%, respectively. The water-soluble selenium was the lowest （1.76%）. The sum of water-soluble selenium and exchangeable-carbonate bound selenium was relatively high （15.95%）, which indicated that the bioavailability of soil selenium was strong, and it was easy to be absorbed and utilized by plants, and was beneficial to the cultivation and production of Se-enriched crops. The content of total selenium and various forms of selenium in soil was positively correlated with organic matter, indicating that the increase of organic matter was beneficial to the accumulation of selenium in soil. Soil pH was significantly positively correlated with water-soluble selenium content, but weakly negatively correlated with total selenium and other forms of selenium content. It was confirmed that selenium mainly existed in the form of selenate under alkaline conditions, which improved the bioavailability of selenium. Therefore, the sorghum base in the study area had a high level of selenium enrichment, a large distribution area, and a strong bioavailability of selenium, which provided a good land resource condition for improving the quality of sorghum Hongyingzi,and developing local Se-enriched characteristic agricultural products.

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Screening of maize stover degradation complex strains and fermentation to produce short-chain fatty acids

WANG Wen-jun, LIU Guo-qing, WANG Zhi-hua

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 55-58. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.010

Abstract （73）

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The compound strains obtained by screening were used to ferment corn straw, the effects of the compound strains on degrading straw to produce short-chain fatty acids were studied, and the structural composition of the microbial consortium was analyzed. The results showed that the degradation rate of the compound strain was the fastest in the first 4 days. The degradation rates of straw, cellulose and lignin reached 30.35%, 27.07% and 14.71%, respectively. At 12 days, the degradation rates reached 40.02%, 32.25% and 20.93%, respectively. The metabolites of the compound strain were isobutyric acid and acetic acid, which accounted for 36.46% and 33.15% of the total short chain fatty acids, respectively. According to high-throughput sequencing, the dominant bacteria genera in the compound strains were mainly composed of Clostridium sensu stricto, Cellulosilyticum, Clostridium XIVa, Enterobacteriaceae and Peptostreptococcaceae.

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Major food crops extraction from GF-6 WFV multispectral imagery based on feature optimization

XU Kang, HUANG Bing-xin, WANG Peng-fei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 59-66. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.011

Abstract （62）

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In view of the characteristics of multiple red edge bands of GF-6 wide field view （WFV） multispectral imagery, a method for extracting major food crops from GF-6 WFV image based on feature optimization was proposed. Firstly, characteristic variables, including spectral feature, vegetation index, water index and red edge index, were extracted from preprocessed GF-6 WFV image. Then, the optimal feature set was generated by using a recursive feature elimination algorithm with permutation importance. Finally, machine learning methods and the optimal feature combination were utilized to extract major food crops. Taking Rudong County, Jiangsu Province as the study area, six experiments were used to extract grain crops, and the effects of different characteristics and different classification models on the extraction accuracy of wheat, rice and corn were discussed. The results indicated that the GF-6 WFV image was suitable for extracting major food crops, and the two red-edge bands and red edge indexes of GF-6 WFV data played an important role in distinguishing three main food crops and other objects. Among the six experiments, the overall accuracy of the classification result based on the optimal feature combination and XGBoost algorithm was the highest, improving 3.08 and 5.58 percentage point respectively compared with the classification result without using red edge bands and indexes.

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Collection and phenotypic diversity evaluation of local Astragalus sinicus L. germplasm resources in Guangxi

WEI Cai-hui, DONG Wen-bin, LI Zhong-yi, TANG Hong-qin, ZENG Cheng-cheng, MO Yong-cheng, HE Tie-guang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 67-73. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.012

Abstract （77）

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Taking the opportunity of the “Third National Crop Germplasm Resources Census and Collection Action” of the Ministry of Agriculture and Rural Affairs, the investigation, collection, evaluation and identification of Astragalus chinensis L. germplasm resources in Guangxi were carried out. The results showed that the 58 collected local resources were mainly distributed in the middle and low altitude areas of 0~400 meters in northeastern Guangxi. Phenotypic analysis of 12 agronomic traits showed rich genetic diversity. Principal component analysis divided 12 agronomic traits into 3 principal components, namely seed yield, biological yield, and growth period characteristics, with a cumulative contribution rate of 72.089%. By weighted average calculation, the top 10 germplasm resources in the comprehensive ranking were GXLF20180011, GXLF2019109, GXLF2019156, GXLF2019118, GXLF2019112, GXLF2019117, GXLF20180006, GXLF2019125, GXLF2019111, and GXLF2019136. The total growth period of the top 10 germplasm resources was 134~147 d, with stem diameter of 2.83~3.66 mm during the peak flowering period, branch length of 41.63~54.73 cm during the peak flowering period, branch number per plant of 2.83~4.19, flower number per branch of 5.85~6.99, total flower number of 17.55~26.23 per plant, pod bearing flower number of 14.33~19.97 per plant, and fresh grass yield of 10 458.15~48 792.75 kg/hm², hay yield of 1 037.36~5 724.34 kg/hm², and seed yield of 246.75~991.20 kg/hm².

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Effect of special fertilizer for oilseed rape in Central Hubei Province

GU He-he, FANG Wen, CHEN Jin, LI Xu-chun, LIAO Shi-peng, YANG Yu-xiong, REN Tao, LU Jian-wei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 74-78. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.013

Abstract （81）

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To clarify the effect of special fertilizers for oilseed rape （Brassica napus L.） on the yield enhancement of direct seeding oilseed rape in central Hubei Province, field experiments for two consecutive years in Shayang County, Hubei Province from 2019 to 2021 were carried out, with four fertilization treatments of no fertilizer, conventional fertilizer, Yishizhuang special fertilizer and Yangfeng special fertilizer, and the differences of the yield, aboveground biomass, aboveground nutrient content, aboveground nutrient accumulation and fertilizer partial productivity of oilseed rape at mature stage under four treatments were analyzed. The results showed that compared with no fertilization control, both conventional fertilization and special fertilizer treatments could significantly increase rapeseed yield. Compared with the conventional fertilization, the total nutrient input of the special fertilizer treatments decreased by 41.3%, but there was no significant difference in rapeseed yield between conventional fertilization and special fertilizer treatments. Fertilizer application significantly increased the aboveground biomass of oilseed rape and promoted the absorption of nutrients by the aboveground oilseed rape. The treatment with special fertilizer for oilseed rape significantly improved the partial productivity of fertilizers. Compared with the conventional fertilization treatment, the average fertilizer partial productivity of Yishizhuang special fertilizer treatment and Yangfeng special fertilizer treatment increased by 80.6% and 68.2% respectively in 2019—2020 and 2020—2021. In conclusion, the special fertilizer for oilseed rape improved the utilization rate of fertilizer while ensuring a high and stable yield of oilseed rape.

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Changes of yield and quality of cigar tobacco leaves and soil available nutrients content by replacing chemical fertilizer with rapeseed cake fertilizer at equal amount of nitrogen

LI Fu-qiang, LIAO Cheng, CHEN Hong-hua, QIAO Bao-ming, XIANG Zhe-di, WANG Xue-song, XU Xiang-yu, TAN Jun

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 79-83. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.014

Abstract （82）

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In order to explore the effects of application of different proportions of organic fertilizer nitrogen on the growth and quality of cigar tobacco leaves, a field experiment was conducted, with cigar tobacco variety CX80 as the material and rapeseed cake fertilizer as the source of organic fertilizer nitrogen, and four treatments were set according to different proportions of organic fertilizer nitrogen and chemical fertilizer nitrogen, including CK （0∶10%）, T1 （10%∶90%）, T2 （20%∶80%） and T3 （30%∶70%）. The effects of each treatment on pH and nutrient content of soil, and growth and quality of tobacco leaves were studied. The results showed that, with the increase of the replacement ratio of organic nitrogen, the content of soil available potassium, alkali-hydrolyzed nitrogen and available boron gradually decreased, the available molybdenum continued to increase, and the pH value, organic matter, exchangeable calcium, exchangeable magnesium and cation exchange capacity increased first and then decreased. Compared with the control, the plant height and leaf number of T2 increased by 12.02% and 3.09%, respectively, and the maximum leaf area of T3 increased by 7.69%. The yield of treatment T2 and T3 was significantly higher than CK, and the average price of tobacco leaves was increased by 7.64% and 7.57% compared with CK. With the increase of the proportion of organic fertilizer nitrogen replacing chemical fertilizer nitrogen, the contents of nicotine, total sugar and total nitrogen in tobacco leaves after air-curing increased first and then decreased, and the ratio of sugar to alkali and the ratio of potassium to chloride increased. The sensory taste showed a fluctuating trend, and T3 was the highest, followed by T1 and T2.

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Controlled-release fertilizer combined with nutrient synergist significantly increased tomato yield and quality

SUN Ming, XIE Huan-huan, LIU De-rui, LYU Chen-hao, ZHAO Zhu-qing, LIU Yao, CHEN E, CHEN Yong-bo

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 84-87，93. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.015

Abstract （68）

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The effects of controlled-release fertilizer combined with nutrient synergist on the growth, yield and quality of the tomato were studied by field experiments with the tomato（Lycopersicon esculentum Mill.） variety Ruifei as the experimental material. The results showed that the combination of controlled-release fertilizer and nutrient synergist could significantly increase stem diameter（P<0.05）. Compared with conventional fertilization,controlled-release fertilizer and controlled-release fertilizer combined with nutrient synergist could significantly improve tomato quality, the soluble solids content of tomato fruit had an increasing trend, the soluble sugar content and vitamin C content were significantly increased （P<0.05）, and the color and hardness of tomato fruit were also improved. Compared with conventional fertilization, controlled-release fertilizer and controlled-release fertilizer combined with nutrient synergist could effectively improve tomato yield and economic benefits, the yield increased by 12.7% and 29.2%, respectively, and the net profit increased by 36 500 yuan/hm² and 77 200 yuan/hm², respectively. In conclusion, controlled-release fertilizer combined with nutrient synergists could increase tomato yield and efficiency, and had important practical value in achieving light and simplified production.

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Characteristics of microbial quantity and enzyme activity in tobacco planting soil under application of mixed seeding green manure

CHEN Wei, CHEN Yi, JIANG Chao-ying, YANG Quan-liu, LU Xian-ren, JIANG Wei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 88-93. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.016

Abstract （74）

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In order to study effects of the mixed seeding green manure application on the microbial count and enzyme activity of tobacco planting soil, a site-specific field experiment was conducted by performing no green manure（control）, Lolium perenne monocropping, Vicia villosa var. glabrescens monocropping, and Lolium perenne and Vicia villosa var. glabrescens mixture （application of mixed seeding green manure）. The microbial quantity and enzyme activities of soil were analyzed after the consecutive 2-year test. The results indicated that the total number of bacteria and nitrifying bacteria in soil under application of mixed green manure were 2.25~3.62 times and 1.60~3.11 times as the control, 1.31~1.76 times and 1.43~2.92 times as Lolium perenne monocropping, 1.25~1.88 times and 1.08~1.27 times as Vicia villosa var. glabrescens monocropping. The numbers of actinomyces and fungi in soil under application of mixed green manure were 1.13~2.00 times and 1.02~1.93 times as green manure monocropping at the early stage of the tobacco planting field, respectively, and lower than those of the green manure monocropping at the later stage of the tobacco planting field. There was no significant difference in the number of ammonifying bacteria in the soil among the treatments at the middle and later stage of the tobacco planting field. The activities of soil catalase, sucrase, urease, acid phosphatase and cellulase in the soil under application of the mixed green manure at different growth stages were significantly higher than those of the control, and also higher than those of Lolium perenne monocropping and Vicia villosa var. glabrescens monocropping. It could be seen that mixed seeding green manure application was beneficial to improve the micro-ecological environment of tobacco planting soil and could be used as a technical model for tobacco planting soil conservation.

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Spatiotemporal differentiation and formation mechanism of arable land function transformation in China

XIONG Qiang, ZHENG Liang, JIANG Jin-hui

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 94-100，110. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.017

Abstract （70）

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In order to accurately describe the path and formation mechanism of farmland function transformation in China, the theoretical framework and evaluation index system of farmland function transformation were established, and the method of determining index weight based on game theory was proposed. Based on the comprehensive index model, the farmland functional transformation index of China’s provinces from 2000 to 2020 was measured, and the mechanism of farmland transformation in China was analyzed. The results showed that from 2000 to 2020, the social function of cultivated land increased and then decreased, the economic function decreased and then increased, and the ecological function remained stable. Among the sub-functions, the function of food security and ecological function were in the main position, the economic contribution function of cultivated land was stronger in underdeveloped areas, and the social function of cultivated land was stronger in northeast areas. From 2000 to 2020, the change of cultivated land function in China took a turning trend and began to evolve along the development direction of urban and rural residents’ demand. On the whole, the driving force of the urbanization level, the quality of economic development, the proportion of non-agricultural industry and the difference in the central, eastern and western areas on cultivated land function transformation had reduced, the driving force of regional economic aggregate on cultivated land function had increased, and the influence of population density on cultivated land function had remained stable.

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Analysis on the characteristics and influencing factors of urban land use expansion in Nanjing metropolitan area

XIONG Yuan-yuan, LI Yi

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 101-110. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.018

Abstract （69）

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Taking Nanjing metropolitan area as the research object, based on the land use data extracted from the 5 remote sensing images from 2000 to 2020, the temporal and spatial characteristics and influencing factors of urban land use expansion in the urban agglomeration of Nanjing metropolitan area were quantitatively analyzed from the expansion intensity, difference index of expansion intensity, cluster analysis, landscape pattern index and multiple regression model. The results showed that based on the analysis of the expansion intensity index, the urban land area of Nanjing metropolitan area continued to increase from 2000 to 2020, and the expansion intensity showed a trend of “rising-falling-rising”, and the expansion intensity of urban land was the highest from 2015 to 2020. Based on the analysis of the difference index of urban land expansion intensity, the high-speed expansion area of Nanjing metropolitan area was concentrated in the border areas of the metropolitan area, mainly distributed in the northeast and southwest directions, and the urban land expansion layout was developing towards a balanced development. Based on the analysis of the cluster analysis model, it was found that the urban land use expansion in Nanjing metropolitan area was randomly distributed from 2000 to 2010, the urban land use expansion was concentrated at high values from 2010 to 2015, and the land use expansion was randomly distributed from 2015 to 2020. Based on the analysis of the landscape pattern index, it was found that the degree of urban land expansion agglomeration in Nanjing metropolitan area gradually increased, the distribution of patches became more and more concentrated, the shape of patches tended to be complicated in the continuous integration and expansion, the traffic connection degree in urban land patches continued to increase, and the expansion of urban land in Nanjing metropolitan area developed towards synergy. Based on the analysis of the multiple regression model, population growth, urban economic development and transportation construction were the main factors promoting the expansion of urban land.

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Analysis on the spatiotemporal characteristics and driving factors of land use transition in Jinzhong based on “production-living-ecological” functions

MA Xin, WANG Jin, LIU Hui-fang, GUO Yong-long, HAN Miao, WANG Dao-yuan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 111-119，127. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.019

Abstract （59）

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The characteristics of land use transition and its driving factors in Jinzhong City, Shanxi Province from the perspective of the “Production-Living-Ecological” functions were quantitatively analyzed, to explore the laws of land use transition in the city were explored. The geo-information atlas and multi-indicator comprehensive index methods were used to explore the geographic features of land use transition and the spatial-temporal patterns features of recessive forms in Jinzhong City from 2000 to 2020, and the geodetector was used to analyze the drivers of transition. The results showed that during the study period, Jinzhong City was in a state of high-intensity land use transition, and the most significant change in atlas units from 2000 to 2010 was the conversion of agricultural production land to greenland ecological land and rural living land. From 2010 to 2020, the main type of atlas unit was the conversion between agricultural production land and greenland ecological land. The transition index of all districts and counties in Jinzhong City showed a continuous upward trend, forming a “Z” shaped spatial agglomeration in the northeastern part of Jinzhong in 2020. Yuci District, Pingyao County, and its surrounding Shouyang County, Taigu District, Qi County, and Yushe County together formed a “T”shaped high-speed development area. The transition of land use was the result of the combined effects of the natural environment, transport location, and social economy. The natural environment and transportation location had a greater driving force for the explicit transition of land use, while transportation location and socio-economic factors had a greater driving force for the recessive transition.

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Land use transformation and ecological environment effects of “production-living-ecological spaces” in Changsha-Zhuzhou-Xiangtan Metropolitan Area

ZHANG Rong, MAO De-hua

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 120-127. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.020

Abstract （70）

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Based on the construction of the land type division system of “production-living-ecological spaces”, comprehensively using the methods of land transfer matrix, ecological environment quality index and ecological contribution rate of land use transformation, the characteristics and ecological environmental effects of “production-living-ecological spaces” land transformation in Changsha-Zhuzhou-Xiangtan Metropolitan Area were quantitatively analyzed from 2000 to 2020. The results showed that from 2000 to 2020, the ecological land was the main land type in the “production-living-ecological spaces” land in Changsha-Zhuzhou-Xiangtan Metropolitan Area, and the dynamic changes of the quantity of living land and production land were large; from the perspective of the “production-living-ecological spaces” land use transformation structure, the agricultural production land and forest land ecological land were mainly transformed into each other, and a large number of agricultural production land and forest land ecological land were transformed into industrial and mining production land and urban living land; the ecological environment quality of the Changsha-Zhuzhou-Xiangtan Metropolitan Area showed a gradual decline trend, and the deterioration was the most prominent from 2005 to 2010. During the study period, low-quality areas and lower quality areas continued to expand; the main factors affecting the change of ecological environment were the conversion of agricultural production land and forest ecological land and the external expansion of urban living land and industrial and mining production land, which occupied a large amount of forest ecological land.

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The spatial and temporal change of land use in Nanning from 1990 to 2020

LUO Yuan-jia, LIANG Qing-xuan, LIU Hong, LIAO Dong-ping, LI Yue-lian

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 128-136. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.021

Abstract （62）

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In order to reveal the spatio-temporal changes of land use in Nanning City, the spatial-temporal evolution characteristics of land use in Nanning City from 1990 to 2020 were analyzed in depth by using geographic information system （GIS） technology and methods such as land use dynamics, degree of utilization and transfer matrix. The results showed that from 1990 to 2020, the changes of land use types in Nanning City were obvious, the overall speed of land use change was accelerated, the construction land and unutilized land increased and showed a growth rate, and the cultivated land, forest land, grassland and water area decreased and showed deceleration; the degree of land use in Nanning City was at a medium level, with the continuous disturbance and influence of human activities on the land, the level of land use degree showed a gradually increasing trend; during the 30 years, a total of 1 051.61 km² of land use types in Nanning City had been transferred, of which the construction land and unutilized land showed a net transfer in, and the cultivated land, forest land, grassland and water area showed a net transfer out.

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Changes of land use and ecosystem services value in Xunwu County from 1990 to 2020

CHEN Xiao-jie, WANG Yuan-dong, MING Lei, MENG Li-hong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 137-141,147. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.022

Abstract （75）

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It was of great significance to explore the characteristics of land use change in Xunwu County, Ganzhou City, Hubei Province, and its impact on ecosystem services value （ESV） in the long-term series to ensure the ecological security and improve the regional ecological environment in the Dongjiang Basin. Based on the land cover data from 1990 to 2020, the change of land use in Xunwu County during this period was analyzed, and the ecosystem service value of Xunwu County was evaluated by using the equivalent factor method. The results showed that the main land use types in Xunwu County were forest land, followed by cultivated land, and the proportion of the two land use types in the total area of Xunwu County was more than 98.0%. From 1990 to 2020, the total area of forest land and grassland in Xunwu County showed a downward trend, the proportion of cultivated land increased year by year, and the area of farmland returned to forest and grassland was less than the area of cultivated land reclamation. From 1990 to 2020, the ecosystem service value of Xunwu County showed a downward trend, and the areas with low ESV values were mainly distributed in the southwest and central parts of the study area, while the areas with high ESV values were consistent with the distribution of forest land in the study area.

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Land use change analysis of Tianshan wild fruit forest distribution area based on GEE

DING Ji-da, PU Zhi, LU Wen-rui, WEN Zhao-fa

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 142-147. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.023

Abstract （61）

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Based on Google earth engine （GEE） remote sensing big data cloud platform, through Landsat series images, using random forest algorithm, combined with spectral index, topographic features for land use classification, through the geographic information mapping, and the spatial and temporal changes of land use of Tianshan wild fruit forest distribution area from 1997 to 2021 were analyzed through geographic information mapping and land use dynamics. The results showed that through GEE platform and random forest algorithm, land use classification could be realized quickly, and the overall classification accuracy was greater than 90.00%, and the Kappa coefficient was higher than 0.85; from 1997 to 2021, the Tianshan wild fruit forest distribution area was mainly arable land, forest land and grassland, and the three accounted for more than 90% of the total area; land use changes were dominated by the transformation of grassland to arable land and the transformation of forest land to grassland; construction land, arable land and water area continued to increase, the change showed the aggregative distribution, forest land decreased first and then increased, and the overall land area decreased seriously; the growth rate of construction land was the largest and the change was the most drastic, the overall reduction rate of unused land and forest land was large and the change was more drastic.

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Ecological restoration zoning of cultivated land in Tacheng City based on soil quality and landscape pattern

LEI Hai-feng, WANG Xi-yuan, GAO Hai-feng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 148-155. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.024

Abstract （63）

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Taking Tacheng City, Xinjiang as the research object, an evaluation index system was constructed from the perspective of soil quality and landscape pattern to evaluate the soil quality and landscape pattern of cultivated land. The results showed that the soil quality of cultivated land in Tacheng City was divided into four levels. Grade I cultivated land accounted for 9.95%, Grade II cultivated land accounted for 27.99%, Grade III cultivated land accounted for 37.04%, and Grade IV cultivated land accounted for 25.02%. Grade I cultivated land could be used as a selection object for high standard cultivated land construction, while Grade IV cultivated land was not suitable for development and required soil remediation;the landscape pattern of cultivated land in Tacheng City was divided into four levels. Grade I cultivated land accounted for 34.6%, Grade II cultivated land accounted for 40.1%, Grade III cultivated land accounted for 21.6%, and Grade IV cultivated land accounted for 3.7%; based on the soil quality and landscape pattern, the ecological restoration areas of cultivated land in Tacheng City were divided into 6 categories： 218 km² of high-quality protection area, 279 km² of soil quality improvement area, 196 km² of soil quality restoration area, 192 km² of landscape pattern improvement area, 58 km² of landscape pattern restoration area, and 70 km² of farmland restoration area. Overall, the key direction for ecological restoration of cultivated land in Tacheng City was soil quality improvement and restoration.

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The soil erosion evaluation based on RUSLE Model： A case study of Liuhe District, Nanjing City

LYU Han, XU Li-ping, CHEN Qi-jun

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 156-161,239. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.025

Abstract （52）

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Taking Chengqiao Street, Liuhe District, Nanjing City, Jiangsu Province, as the research area, the evaluation process of soil erosion intensity in the research area was studied by combining theoretical algorithm, model building and field application according to the relevant standards of the Ministry of Water Resources. The existing DEM generation method and land use classification method were optimized to some extent, and the monitoring elements of soil erosion were extracted by using multi-source remote sensing impact data, and the soil erosion intensity in the study area was estimated based on the RUSLE model. The results of practical application in the field were compared and analyzed with the existing methods to verify the validity and objectivity of the theories and algorithms.

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Evaluation and prediction of land ecological security based on DPSIR and GM（1,1） model：Taking Luoyang City, Henan Province as an example

ZHANG Yao, LI Shuai, WANG Peng-fei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 162-169. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.026

Abstract （64）

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In order to explore the current situation and main influencing factors of land ecological security in Luoyang City, based on the DPSIR model, 24 evaluation indicators were selected to construct an evaluation indicator system. The entropy weight method, obstacle degree model （ODM）, and grey system GM（1,1） model were used to evaluate and predict the land ecological security situation in Luoyang City from 2010 to 2020. The results showed that the land ecological security in Luoyang City showed an upward trend from 2010 to 2020, with relatively small fluctuations from 2010 to 2017. In 2018, the land ecological security index increased significantly, from 0.480 5 to 0.602 7;in 2020, the level of land ecological security increased from a critical safety level to a relatively safe level, with factors such as natural population growth rate, pesticide consumption per unit of arable land, per capita park green space area, and the proportion of tertiary industry output being important driving forces for the index’s increase;the subsystem with the highest weight was the response subsystem, and the single indicator with the highest weight was the per capita park green space area; the indicator with the highest frequency of occurrence among obstacle factors was the harmless treatment rate of household waste;according to the prediction results of the grey system GM（1,1） model, the land ecological security level in Luoyang City would reach the safety level in 2023.

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Evaluation and mechanism on the importance of ecosystem service functions in Yuxi City

DU Yuan-yuan, LIU Shi-xin, TAN Mei-xian, XIANG Dong-lei, CHEN Yun-chun

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 170-177,188. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.027

Abstract （70）

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Taking Yuxi City as the research object, combined with the actual situation and data of its ecological environment, this paper evaluated the importance of ecosystem service functions in Yuxi City and explored the internal mechanism of its importance pattern formation.The results showed that the importance of ecosystem service functions in Yuxi City was mainly extremely important, with an area of 13 556.94 km², accounting for 90.74% of the total area of Yuxi City; the distribution of general important areas was relatively small, located in the southwest of Yuxi City, mainly in Yuanjiang County;the distribution of important areas was relatively scattered, mostly in the eastern part of Yuxi City, mainly distributed in Hongta District, Jiangchuan District, Haitong County, and Chengjiang City;the extremely important areas were widely distributed, covering various counties and districts in Yuxi City, mainly distributed in Eshan County, Yimen County, Xinping County, and Huaning County;among different importance levels, the total area of cultivated land and forest land accounted for a relatively large proportion. The proportion of cultivated land area was negatively correlated with the importance level of ecosystem service functions, while the proportion of forest land area was positively correlated with the importance level of ecosystem service functions. As the importance level changed, the two showed a pattern of one declining and the other growing.

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The spatiotemporal variation characteristics of grassland vegetation coverage and grassland degradation in northern Xinjiang from 2000 to 2020

FAN Jun, YAN An, LI Jing-yan, LU Qian-cheng, SUN Meng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 178-188. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.028

Abstract （66）

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Using Landsat NDVI sequence data from 2000 to 2020 as the data source, this paper used spatiotemporal and statistical analysis methods to explore the spatiotemporal variation characteristics of grassland vegetation coverage and grassland degradation in northern Xinjiang. The driving forces of grassland degradation in Northern Xinjiang were analyzed from two aspects： climate and human activities. The results showed that from the spatiotemporal changes of grassland vegetation coverage, the overall trend of grassland vegetation coverage in Northern Xinjiang from 2000 to 2020 was increasing;the ecosystem in the Northern part of Xinjiang was more fragile and susceptible to the impacts of climate change and human activities;the grassland in the Northern Xinjiang region had a relatively high grassland vegetation coverage on the sunny slope. The areas with a high grassland vegetation coverage were mainly located in mountainous areas with high terrain index and relatively good water and thermal conditions. The areas with a low grassland vegetation coverage were mainly located in areas such as relatively water scarce and arid desert edges. From the spatiotemporal variation characteristics of grassland degradation, there was a significant shift in the levels of grassland degradation in Northern Xinjiang from 2000 to 2020, mainly manifested as the transition from mild and moderate degradation to non degraded grassland, and from severe degradation to mild degradation, indicating that the phenomenon of grassland degradation in Northern Xinjiang had further improved. Grassland degradation in Northern Xinjiang was the result of the combined effects of climate change and human activities, with precipitation being the main climate factor.

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The Temporal and spatial evolution and prediction of ecosystem service value in Yuxi City based on the FLUS-Markov model

LIU Shi-xin, LI Jian-hua, SUN Yong-qi, DU Yuan-yuan, XIANG Dong-lei, CHEN Yun-chun

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 189-198. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.029

Abstract （70）

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Based on the ecological landscape type data of Yuxi City in 2010 and 2020, and the economic value correction ecosystem service value coefficient of grain production,analyzed the ecological landscape types and distribution characteristics of ecosystem service value in Yuxi City were analyzed, and the FLUS-Markov model was used to predict the ecosystem service value and its distribution in Yuxi City by 2030.The results showed that the Kappa coefficient of the predicted results of the model had been increased to 0.896 9, with an overall accuracy of 0.939 3, indicating high accuracy;from 2010 to 2020, the area of forest and grassland in Yuxi City showed a decreasing trend, and the ecosystem mainly composed of forest, grassland, and water still faced threats; the ecosystem service value of Yuxi City was 53.504 71 billion yuan, with a change rate of -0.129 7% in 2030. Yuxi City should strengthen the protection of forest and grassland, strengthen the implementation of policies for returning farmland to forest and grassland, and reasonably control the conversion of grassland and forest land to arable land;the ecosystem service value of Yuxi City showed still as follows： west>center>east in 2030;the contribution rates of ecosystem service value from high to low were Xinping County, Yuanjiang County, Eshan County, Yimen County, Huaning County, Hongta District, Jiangchuan District, Chengjiang City, and Tonghai County in various counties and districts of Yuxi City in 2030.

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Analysis of built-up area range and ecological quality changes in the Erhai Basin based on Google Earth Engine

ZHENG Shu-yuan, CHEN Xing-yu, HAI Yan, WANG Jian-xiong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 199-204. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.030

Abstract （74）

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Taking Erhai Basin as the research area, with the help of Google Earth Engine cloud platform and Landsat 8 OLI series images, the enhanced index-based build-up index （EIBI） of the research area was synthesized and the built-up areas in Erhai Basin was extracted. Then, the remote sensing-based ecological index of the study area was synthesized. Through the spatial correlation analysis of the remote sensing-based ecological index of the built-up area and the basin, the ecological assessment of Erhai Basin and its built-up area from 2014 to 2021 was carried out. The results showed that the EIBI could effectively enhance the building information. Using EIBI could effectively and accurately extract the built-up area of the study area. After EIBI extraction, the expansion area of the built-up area of Erhai Basin from 2014 to 2021 was 14.712 km². From 2014 to 2021, the ecology of Erhai Basin was significantly improved, the remote sensing ecological index increased by 0.008, with an increase rate of 0.001/year, and more than 65% of the regional ecology in the basin was improved. The built-up area in Erhai Basin roughly matched the area where the ecology had not been improved. The ecological quality of the built-up area had not been significantly improved after ecological restoration, and the ecological quality of the built-up area showed a downward trend year by year, indicating that the built-up area had resistance to environmental improvement.

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Spatiotemporal variation analysis of vegetation index in water source region of the middle route of South-to-North Water Diversion Project

BAI Jing-feng, ZHANG Hai-jun, BAI Yun-fan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 205-210. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.031

Abstract （58）

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The single linear regression （SLOPE） and geographically weighted regression （GWR） methods were used to study the variation trend and mechanism of vegetation distribution in the water source area of the middle route of the South-to-North Water Diversion Project by vegetation index （NDVI）, so as to provide theoretical support for guaranteeing water quantity and quality. The result showed that the NDVI and the inflow runoff increased synchronously in the water source area from 2000 to 2019. Vegetation gradually became better. The NDVI increase rate was large before 2007, but fluctuated from 2008 to 2011, and decreased after 2012. The NDVI changed obviously in the northeast, west and around the Danjiangkou reservoir area,these areas had low and flat terrain and concentrated population. The NDVI changed little in middle and high mountain areas. The elevation, slope, population and urbanization were the main factors affecting NDVI distribution in the water source region, while precipitation, temperature and industrial proportion were the secondary factors. The intensity and direction of the influencing factors had obvious heterogeneity. The most significant range affected by natural geographical factors on NDVI were the areas with elevation below 1 090 m and average annual precipitation above 980 mm. The significant range affected by human geographical factors were the areas with high population density and high urbanization rate.

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Spatiotemporal distribution and centre of gravity dynamic change of wild fruit forests in Emin County, Xinjiang from 2007 to 2020

HU Xin-yue, SUN Qian, HUANG Jin-yi, SONG Ting-wei, GUO Zheng-yu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 211-218. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.032

Abstract （63）

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Taking the distribution area of wild fruit forests in Emin County as the research area, using the remote sensing images of Quick bird in 2007 and Gaofen-1 satellite in 2013 and 2020, and the wild fruit forests field measurement data, the information interpretation and area extraction of wild fruit forests were realized, and based on the dynamic degree model, transfer matrix model and center of gravity migration model, the temporal and spatial distribution characteristics and dynamic changes of wild fruit forests in the study area from 2007 to 2020 were analyzed, and the mutual conversion between various features and wild fruit forests was mastered. The shift of the center of gravity of the spatial distribution of wild fruit forests was analyzed, and the reasons affecting the temporal and spatial distribution of wild fruit forests in the study area were discussed. The results showed that the area of wild fruit forests increased by 3.91 km² from 2007 to 2020, which showed a continuous and slow increasing trend, and the development of tourist attractions directly led to the increase of building land area; in the past 14 years, the area of wild fruit foresst increased gradually, which was attributed to the frequent conversion of grassland and bare soil to wild fruit forests, and the transformation of grassland to wild fruit forests was the most significant; the change range of the center of gravity of wild fruit forests was small, and the spatial distribution was relatively stable.

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Microbial characteristics of tailwater from rural domestic sewage treatment facilities in subsurface constructed wetlands

CHEN Shu-ping, LU Yuan, ZHANG Wen-yi, LI Qiao, WU Ke, WU Jin-hai, JIN Lin-fei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 219-223. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.033

Abstract （64）

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Rural domestic sewage was treated by A1/O1/A2/O2 facilities and flowed into the subsurface constructed wetland （abbreviated as constructed wetland）. To reveal its biodegradation characteristics, the microbial characteristics of constructed wetland were analyzed through urease activity and microbial amplicon sequencing. The results showed that the urease activity at the inlet of the constructed wetland was higher than that at the outlet. The urease activity at the outlet was significantly positively correlated with the total nitrogen removal rate. The higher the urease activity at the outlet, the better the total nitrogen removal effect;microbial amplicon sequencing showed that the dominant bacterial phyla in constructed wetland were Proteobacteria, Bacteroidetes, and Firmicutes. The relative abundance of Proteobacteria and Bacteroidetes decreased by 8.41 percentage points and 12.14 percentage points respectively from the inlet to the outlet, while Firmicutes increased by 12.91 percentage points; the content of denitrifying bacteria in the inlet and outlet of the constructed wetland was relatively high, with relative abundances of 20.51% and 14.18%, respectively. Among them, the bacteria with heterotrophic nitrification and denitrification functions were also relatively abundant, with 8.54% and 7.44%, respectively.

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The temporal and spatial characteristics and pollution source of agricultural non-point source pollution in Shaanxi Province

MENG Xiao-jun, WANG Xin-jie, ZHU Ni, GE Guang-huan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 224-231. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.034

Abstract （78）

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In order to clarify the spatiotemporal characteristics, key pollution sources, pollution areas, and pollution types of the agricultural non-point source pollution in Shaanxi Province, the export coefficient method （ECM） was used to estimate the pollution load of total nitrogen （TN） and total phosphorus （TP） in 11 urban areas of Shaanxi Province from 2010 to 2019, and the equal standard pollution load method was adopted to evaluate the pollution sources. The 11 urban areas were divided into agricultural non-point source pollution types using the rapid clustering method.The results showed that from 2010 to 2019, the agricultural non-point source pollution TN and TP pollution load in Shaanxi Province showed a trend of first increasing and then decreasing. In 2019, the pollution load of TN and TP were the lowest, at 129 027.14 and 13 872.84 t, respectively;in 2019, the equal standard pollution load ratios for livestock and poultry breeding, agricultural planting, and rural life in Shaanxi Province were 20.923%, 60.130% and 18.947%, respectively;the spatial distribution of equal standard pollution load for different pollution sources TN and TP showed strong consistency. Among the 11 urban areas, the equal standard pollution load ratios for the agricultural non-point source pollution in descending order were Yulin City （16.94%）, Hanzhong City （15.42%）, Ankang City （13.06%）, Weinan City （12.93%）, Xianyang City （9.28%）, Shangluo City （8.31%）, Baoji City （8.18%）, Yan’an City （7.03%）, Xi’an City （6.89%）, Tongchuan City （1.74%）, and Yangling Demonstration Zone （0.24%）;the agricultural non-point source pollution in 11 urban areas could be divided into four types： agricultural planting pollution dominant type, agricultural planting+rural life pollution dominant type, agricultural planting+livestock and poultry breeding pollution dominant type, and mixed pollution type.

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Response surface optimization of ultra high life aluminum process for removing chloride ions from high chlorine wastewater

DUAN Yue, LUO Xue-gang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 232-239. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.035

Abstract （56）

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Taking high chlorine wastewater generated in industrial production as the experimental object, the ultra high lime aluminum （UHLA） process was used to remove chloride ions （Cl^-） from high chlorine wastewater. Based on single factor results and Cl^- removal rate as the response value, the Box-Behnken center combination test was used to optimize the process parameters. The results showed that the calcium chloride molar ratio had a significant impact on Cl^- removal rate, temperature had a significant impact on Cl^- removal rate, while the aluminum chloride molar ratio had no significant effect on Cl^- removal rate. The degree of influence ranked from large to small as follows： calcium chloride molar ratio, temperature, and aluminum chloride molar ratio;the optimal process parameters for removing Cl^- from high chlorine wastewater using UHLA process were n （Ca）∶n （Al）∶n （Cl）=5.4∶2.9∶1.0, reaction temperature of 25.5 ℃, and theoretical Cl^- removal rate of 90.56%;the optimal process was horizontally validated using simulated wastewater, and the Cl^- removal rate in simulated wastewater was 97.85%, significantly higher than that in industrial high chlorine wastewater;ICP-MS was used to analyze the elemental changes in high chlorine wastewater before and after treatment with UHLA process. It was found that UHLA process could effectively remove anions such as SO₄^2-, SO₃^2-, and I^-, and heavy metal ions such as Sr²⁺, Cr³⁺, and Zn²⁺.

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Repair effect of rapeseed, Solanum nigrum and ramie on farmland soil contaminated by cadmium and arsenic

LI Quan, CHEN Yi, LIU Li, ZHAO Qian-li, HE Bei, DU Fan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 240-246. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.036

Abstract （64）

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Taking rapeseed, Solanum nigrum, and ramie as test materials, the adsorption and enrichment of Cd and As in cultivated soil by rapeseed, Solanum nigrum and ramie were studied in pot experiment. Two microorganisms, Rhodopseudomonas palustris and Aspergillus niger, were applied to explore the application potential of rapeseed, Solanum nigrum and ramie to purify heavy metals polluted soil. The results showed that rapeseed and Solanum nigrum had better adsorption effects on Cd in soil, showing enrichment characteristics, while ramie plants had a poor absorption effect on Cd. The order of Cd content in rapeseed plants was： stem>root>seed, and the order of Cd content in Solanum nigrum plants was： stem>fruit>root. The adsorption effect of rapeseed, Solanum nigrum and ramie on As in soil was poor. Rhodopseudomonas palustris and Aspergillus niger had little effect on the absorption of Cd and As in the soil by rapeseed, Solanum nigrum and ramie. Rapeseed was more suitable as a remediation plant for polluted soil by Cd.

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Spatio-temporal evolution, spatio-temporal clustering and risk prevention and control of PM_2.5 exposure risk in China from 2001 to 2016

LIN Yi-chen, SUN Si-wei, PAN Yue, LIU Chao-qun, ZHOU Peng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 247-253,260. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.037

Abstract （64）

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The coupling population-weighted air pollution exposure risk （PPM_2.5） evaluation system was built, and the spatio-temporal evolution and spatio-temporal clustering of PM_2.5 and its population exposure risk in China was studied based on exploratory spatiotemporal analysis. The results showed that based on the time-space evolution analysis, it was found that there was a spatial mismatch between the coupling population-weighted air pollution exposure risk （PPM_2.5） pattern and the distribution of PM_2.5 concentration.The risk level of PPM_2.5 decreased with the gradient from the center to the periphery, but the overall pattern of high in the east and low in the west remained unchanged during the study period. The spatial and temporal evolution of its equilibrium showed an enhancement of the overall imbalance and the local equilibrium was more likely. Based on the K-means clustering analysis of spatio-temporal scanning statistics, four types of exposure risk were defined： stable low risk, continuous growth risk, continuous high risk and low-high risk gradual change. The distribution of each type was significantly different with different demographic and economic characteristics. The development of differentiated air pollution warning and prevention strategies based on the spatial and temporal clustering zones of different PM_2.5 population exposure risk could help improve urban resilience and provide a theoretical and practical basis for the implementation of the development strategy of “Healthy China”.

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Temporal and spatial evolution analysis of habitat quality in ecologically vulnerable areas based on PLUS-InVEST model

LI Zi-han, YU Hui, GONG Fei, WANG Tian-zhu, LI Peng-shan, PAN Yi-xi, LIU Si-yuan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 254-260. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.038

Abstract （59）

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Based on the PLUS model, the land use situation in ecologically vulnerable areas of Aba Prefecture in 2030 was predicted, and the InVEST model was used to calculate the habitat quality in 2000, 2010, 2020 and 2030, and analyze its temporal and spatial evolution. The results showed that the degradation of grassland and wetland in the study area was significant and the bare land continued to increase. It was estimated that the area of bare land would reach 334.38 km² in 2030; compared with 2000, there would be 204.55 km² of wetland degradation. Among the driving factors, rainfall was the main factor limiting the expansion of forest land and wetlands, which reflected the importance of water conservation function; there was little difference in the degree of grasslands affected by various factors, the grass land generally grew in places far from the government, and the area expansion was limited by DEM; air temperature was the main factor leading to the increase of bare land. The habitat quality was generally high, but the spatial distribution varied greatly, and there was a slow deterioration trend. It was expected that the area with low habitat quality would increase by 670.28 km² in 2030 compared with 2000, mainly caused by the expansion of cultivated land and construction land. The rate of habitat quality degradation would slow down in the future, but artificial measures were still needed to prevent the decline.

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The estimation and release of the construction land consolidation potential of rural residential areas based on potential type differentiation：Taking a county in hilly region of South China as an example

TAO Feng, XU Xian-sui, CHEN Rong-qing

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 261-267,封三. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.039

Abstract （86）

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The potential of rural residential construction land consolidation from the perspectives of other idle land, idle construction land and standard-exceeding residential land was calculated, the regional consolidation benefits from the economic perspective were explored, and the time sequence of construction land consolidation based on the consolidation potential and benefits was determined. The results showed that the potential of rural residential construction land consolidation in the study area was sufficient, and the potential of standard-exceeding residential land consolidation was significant; the consolidation efficiency of other idle land and idle construction land was superior, and the difference between the income and expenditure of the standard-exceeding residential land consolidation was obvious; the release of rural residential construction land consolidation potential was related to the consolidation area, benefits and time sequence, which was determined by regional capacity and demand.

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Spatial-temporal evolution analysis of population in dam area of more than 5 000 mu of arable land in Guizhou Province

TANG Tian-jun, ZHOU Zhong-fa, ZHANG-FU Xian-mei, HUANG Deng-hong, DENG Fang-fang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (2): 268-274. DOI: 10.14088/j.cnki.issn0439-8114.2024.02.040

Abstract （68）

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The GIS spatial statistical tool was used to analyze the population data of 21 WorldPops in the arable land dam area of more than 5 000 mu in Guizhou Province from 2000 to 2020, and the spatial and temporal pattern and change characteristics of population distribution in the arable land dam area of more than 5 000 mu in Guizhou Province in the past 21 years were quantitatively revealed. The results showed that the population of arable land dam area in Guizhou Province showed a trend of increasing first and then decreasing. According to the characteristics of the population growth curve, it could be divided into four stages： stable growth period（2000—2006）, rapid fluctuation growth period（2006—2010）, rapid negative growth period（2010—2015） and slow decline period（2015—2020）, with an overall decrease of 9 900 people, of which 5 000 mu of arable land dam area increased by 9 400 people and 10 000 mu of arable land dam area decreased by 19 300 people; the population distribution of arable land dam area of more than 5 000 mu was mainly relatively lower-density agglomeration area and lower-density agglomeration area, and the population distribution difference was obvious; the spatial correlation of population density was generally manifested as no significant difference, and locally manifested as HH, LL and HL agglomerations; the migration range of the population center of gravity in the dam area was small, and the meridional and zonal changes showed a reciprocating trend.

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HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 0-0.

Abstract （69）

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Empirical study on the integrated development of culture and tourism in the Three Rivers Source Ecological Functional Zone of Qinghai Province

ZHANG Jie, JI Hai-rui, ZHANG Jian-yong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 1-7. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.001

Abstract （102）

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In order to explore the feasibility of cultural and tourism integration development in the Three Rivers Source Ecological Functional Zone and achieve high-quality cultural and tourism development, based on the mechanism of cultural and tourism coupling coordination, the panel data from 2010 to 2020 was used to empirically analyze the level of cultural and tourism industry coupling coordination development in the Three Rivers Source Ecological Functional Zone from time and regional distribution through a coupling coordination model. The results showed that from 2010 to 2020, the development of the cultural and tourism industries in the Three Rivers Source Ecological Functional Zone showed an overall upward trend, but the development of the cultural industry lagged behind that of the tourism industry;from the perspective of regional distribution, the development of the cultural and tourism industries in each prefecture was not synchronized, and the development of the east and west was not coordinated. The integration of culture and tourism in the Three Rivers Source Ecological Functional Zone had gone through a stage of moderate imbalance, mild imbalance, and imminent imbalance. With the continuous increase of coupling coordination among different prefectures, the gap in coupling coordination level was narrowing, but most prefectures were still in a low-level stage. The cultural and tourism integration level in the eastern region of the Three Rivers Source Ecological Functional Zone was better than that in the western region. Huangnan Prefecture relied on its resource advantages and geographical conditions to achieve optimal industrial integration development and moderate level coupling coordination. The cultural and tourism industries in the Three Rivers Source Ecological Functional Zone complemented and supported each other, and the integration of culture and tourism was conducive to promoting the transformation and upgrading of industry, helping to improve the quality and efficiency of the two major industries.

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The role of rural tourism in rural cultural revitalization in Hulunbuir City

FU Yan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 8-13. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.002

Abstract （73）

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In order to study the role of rural tourism in rural cultural revitalization, this paper introduced the concepts and requirements of rural tourism and rural cultural revitalization. Taking Hailar District, Hulunbuir City, Inner Mongolia Autonomous Region as the research object, the data was analyzed using literature review and principal component analysis methods, and an indicator system for the effect of rural tourism on rural cultural revitalization was constructed. The results showed that the effect scores of the five dimensions of industrial development, ecological adaptation, rural civilization construction, rural governance construction, and rural quality of life in Hailar District were 3.004, 3.003, 3.003, 3.002, and 3.001, respectively, with the most significant impact of industrial development on the region;the economy, environment, ecology, and cultural construction of Hailar District had been improved to varying degrees. The research results could provide reference for the formulation of rural tourism development strategies in Hailar District.

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Analyzing the influencing factors of rural youth’s attachment behavior to mobile short videos from the perspective of information ecology

DENG Jian-gao, ZHANG Xuan, XU Xu-kan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 14-20. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.003

Abstract （66）

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Based on the perspective of information ecology and the introduction of attachment theory from psychology, a model of the influencing factors of rural youth’s attachment behavior to mobile short videos under the mediating variable of psychological needs was constructed, and its mechanism was explored through empirical analysis. The results indicated that information content, information technology, and information environment factors significantly affected the attachment behavior of rural youth to mobile short videos, driving them to generate different psychological needs and promoting the development of attachment behavior. The information content was the core of rural youth’s attachment behavior to mobile short videos;information technology was the foundation for rural youth to develop attachment behavior toward mobile short videos;the information environment was a catalyst for rural youth to develop attachment behavior toward mobile short videos;the psychological needs of rural youth were the fundamental reason for their attachment to mobile short videos. Based on this, countermeasures and suggestions were proposed from three aspects： balancing the supply and demand of rural public cultural resources, reviewing video content, and promoting collaborative governance.

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The European and American rural tourism model and its inspiration on tourism planning in Qinghai Province

HAN Si-qintu, SONG Zhuo-ma, HOU Rui-bo

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 21-25. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.004

Abstract （68）

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In order to scientifically promote the tourism planning of Qinghai Province and the high-quality development of rural tourism in Qinghai Province, this paper introduced the typical experiences and model formed by France, the United Kingdom, and the United States in the process of rural tourism development. Combining the advantages and characteristics of rural tourism development in Qinghai Province, this paper drew inspiration for strengthening rural tourism planning in Qinghai Province. The results indicated that rural tourism in Europe and America had the characteristics of natural ecology as the foundation, folk culture as the soul, diverse coordination as the goal, and development for the benefit of the people as the foundation;the characteristics and advantages of tourism development in Qinghai Province were reflected in the rich and diverse tourism resources, increasingly improved infrastructure, gradually strong market demand, and continuously strengthened policy guarantees;Qinghai Province could promote rural tourism planning by coordinating urban and rural development, adhering to ecological low-carbon, innovating diversified governance, promoting cultural and tourism integration, and strengthening standardized management.

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A measurement model and empirical testing of tourist perceived value in historical and cultural towns：Taking Yongnian Guangfu City, Yongnian District, Handan City as an example

CHEN Kai-qiang, SUN Bing, ZENG Chun-yuan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 26-33. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.005

Abstract （53）

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Taking Yongnian Guangfu City, Yongnian District, Handan City as the research object, this study comprehensively considered risk perception and cultural value characteristics, and developed a tourist perceived value measurement table that conformed to the characteristics of ancient towns for historical and cultural towns. The study explored the influencing factors of tourist perceived value in ancient town type scenic spots. The results showed that the perceived value measurement table for tourists in historical and cultural towns consisted of 27 measurement indicators from 8 dimensions： living environment value, service value, emotional value, cultural cognitive value, cultural appreciation value, cultural product value, risk perception, and cost perception;the cultural cognitive value, cultural product value, and cultural appreciation value were special dimensions that distinguished historical and cultural towns from other common dimensions of scenic spots;the risk perception formed by tourists during public crisis events had a significant impact on the perceived value of tourists in historical and cultural towns.

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Development of modern ecological agriculture in rural revitalization：Based on the analysis of Germany’s experience

LI Xiao-xia, SONG Rui-ya

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 34-40. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.006

Abstract （59）

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Based on the parallel ecological industrialisation and industrial ecologicalization, the modern eco-agricultural system formed its own unique development framework. Drawing on beneficial experiences from Germany’s rural construction cases and analysing Germany’s ecologically-led green land remediation policy, competition-promoted endogenous motivation activation policy, multifaceted supportive vocational farmer cultivation policy, and innovation-orientated agricultural science and technology development policy were important inspirations for China’s efficient promotion of rural revitalization strategy toward the development of modern eco-agriculture, that was, to establish a new concept of coordinated development and work out a master plan for urban-rural integration; further promote ecological industrialization and establish a mechanism to realize the value of ecological products; lay out industrial ecology and form a green industrial system cycle model; improve the rural governance system and promote the modernization of rural governance capacity.

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Coupling modes of grain output and agricultural labor force changes and rural development types at county level in Hubei Province

AN Bin, NING Yue-wen, XIAO Wei-wei, CHEN Hao, LIU Yu-feng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 41-47. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.007

Abstract （51）

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Based on the data of grain output and agricultural labor force in 81 counties of Hubei Province from 2003 to 2017, the spatial-temporal variation characteristics and corresponding coupling patterns of grain-labor were analyzed by using the grain-labor elastic coefficient model method. The results showed that grain production showed a trend of steady growth in Hubei Province from 2003 to 2017. The spatial characteristics of grain production were high in the middle and low in the surrounding area, increasing in the middle and decreasing in the surrounding area. The high grain production areas had been concentrated in the middle part of northwest Hubei Province and the south of Jianghan Plain. The total amount of agricultural labor force continued to decrease, and showed the spatial characteristics of more in the east and less in the west and increasing in the east and decreasing in the west. The labor-intensive areas were concentrated in the east of Jianghan Plain and the west of the northeast hills of Hubei Province. From 2003 to 2017, the most typical coupling change pattern of grain and labor was grain increasing and labor decreasing（60.49%）, followed by grain and labor decreasing （23.46%） and grain and labor increasing （11.11%）, and the proportion of grain decreasing and labor increasing was the lowest（4.94%）. Under the influence of geographical conditions and agricultural policies, rural development types in Hubei Province showed a diversified and coexisting pattern. The extension type and agricultural modernization type counties were mainly distributed in the central part of Hubei Province, while the industrial transfer type and the planting and breeding integration type counties were mainly distributed in the eastern and western parts. In the two periods before and after 2010, the transformation of rural development types in the county was complicated, and relatively few remained unchanged.

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Construction and practice of “rural appearance” under the background of rural revitalization

SHEN Hong-jie

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 48-52. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.008

Abstract （50）

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Starting from the survey questionnaire, the “rural” representation and keywords of rural tourism were collected, and they were classified and named. Then, based on the “two-factor” theory, the construction framework of “rural appearance” was built, including health care factors namely rural style and remains of scenery, and incentive factors namely rural society and production and experience of villagers. Finally, rural tourism destinations were demonstrated by practice. The results showed that in the construction of “rural appearance”, the score of the incentive factors index of rural tourism destinations was lower than the score of the health care factors index, and the display of the incentive factors index would be an important direction for the future construction of rural tourism destinations.

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An empirical study on the impact of the digital economy and financial knowledge on farmers’ entrepreneurial decision-making： Based on the survey data of 1 086 households in Shaanxi Province

LI Li, CHI Chao-nan, WANG Zhi-bin, LU Guo-min

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 53-58. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.009

Abstract （50）

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Based on the data of 1 086 valid survey questionnaires in Shaanxi Province in 2021, the double column model was used to study the impact of digital economy and financial knowledge on farmers’ entrepreneurial decision-making. The results showed that digital economy and financial knowledge could not only promote farmers’ entrepreneurial intention, but also improve the investment scale of farmers’ entrepreneurship, and had a significant impact on farmers’ entrepreneurial decision-making. The total family assets could promote farmers to start businesses and increase the scale of investment, while the real estate assets would restrain farmers from starting businesses and reduce the scale of investment. The age and marital status had no significant impact on the basic decisions of farmers’entrepreneurship and their investment. Therefore, it was suggested that relevant departments should cultivate digital economy talents and popularize digital economy technology to promote the integration of traditional agriculture and digital economy, enhance the strategic position of farmers’ financial education and give priority to popularizing the financial knowledge urgently needed by farmers.

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Can Internet use promote rural females’ non-agricultural employment under the background of digital economy

ZHAO Lan-lan, XIA Yong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 59-68. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.010

Abstract （65）

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Using the Chinese General Social Survey data in 2017, combined with empirical analysis methods such as Probit model, Random forest model and extended regression model, the impact and mechanism of Internet use on rural females’ non-agricultural employment decisions in the digital era were analyzed. The results showed that Internet use could promote non-agricultural employment of rural females, and the marginal effect was 6.8%; the higher the frequency of modern media use, the higher the probability of non-agricultural employment of rural females, especially the impact on self-employment was greater than employment; the influence of information access channel was not significant. Heterogeneity analysis showed that Internet use had a higher probability of increasing non-agricultural employment for rural females with junior middle school education level, low family care intensity and low family economic level. Internet use might affect non-agriculture employment through three channels of increasing human capital level and experience accumulation, extending social relations and improving the traditional gender perception. It showed that in the digital economy era, the use of the Internet played a positive role in the participation of rural females in non-agricultural employment, and also provided a new perspective for exploring the digital dividend under the existing labor constraints, optimizing the labor allocation of resources, and promoting the sound and rapid economic development.

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The influencing factors and mechanisms of the contradiction between land transfer willingness and behavior：Based on 5 307 farmer samples from underdeveloped counties in Shanxi Province

LI Hui-min, GUO Qing-xia, DING Yi, KANG Qing

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 69-74. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.011

Abstract （52）

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Based on 5 307 field survey data from 58 underdeveloped counties in Shanxi Province, the Logistic-ISM model was used to analyze the influencing factors and occurrence mechanisms. The results indicated that the phenomenon of deviation between the willingness and behavior of farmers in underdeveloped counties of Shanxi Province in land transfer was quite common, and had become a significant obstacle factor in the process of land transfer in the region. There was a common phenomenon of deviation between the willingness and behavior of farmers in land transfer. Among 2 742 households with land transfer intention, 1 892 households （69.00%） did not engage in land transfer behavior;among 2 565 households without land transfer intention, 1 163 households （445.34%） engaged in land transfer behavior;the age of farmers, lack of non-agricultural employment ability, low transfer income, difficulty in finding transaction partners, fear of loss of security, and fear of breach of contract had a significant positive impact on the phenomenon of deviation;the health status of farmers, education level of farmers, total population, proportion of non-agricultural income, maximum and minimum cultivated land area had a significant negative impact on the phenomenon of paradox;on this basis, a deep analysis of the paradox factor was conducted to form a hierarchical structure of “one path, two drives”;taking improving the non-agricultural employment ability of farmers as a breakthrough point, the focus was on addressing the restrictive effects of individual and family characteristics of farmers on land transfer. Based on regulatory ideas and combined with factor pathways, adaptive regulatory measures were proposed.

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Characteristics and influencing factors of farmland transfer in Guangxi

ZHONG Jia-yi, HU Bo, SHI Bao-wei, XIONG Na, LU Yu-ming, HE Long-fei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 75-79. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.012

Abstract （47）

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The Logit model was used to analyze the influencing factors of farmer land-transfer behavior. The results showed that the difference of family land management, the weight of family non-migrant labor force, the willingness of farmers to transfer land, and the willingness of farmers to rent land had a significant negative impact on the decision of farmers to transfer land, and the weight of family migrant labor force had a positive impact on the decision of peasant household to transfer land. In order to further promote farmland transfer, it was suggested to improve the education level of farmers, and encourage farmland management with family farms as the main and multiple farmland operation mode coexisting.

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Impact of new urbanization on agricultural green productivity under the threshold of digital financial inclusion

ZHANG Jing-wei, LI Jing-suo

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 80-86. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.013

Abstract （50）

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Based on the panel data of 30 provinces from 2011 to 2018, the superefficiency SBM model was used to estimate the agricultural green productivity of each province. On this basis, the impact of new urbanization on agricultural green productivity and the role of digital inclusive finance were studied. The results showed that new-type urbanization could promote the improvement of agricultural green productivity. Among them, the promotion effect of the eastern region was greater than that of the central and western region; with the improvement of agricultural green productivity, the promotion role of new-type urbanization first increased and then gradually slowed down; taking digital inclusive finance as the threshold variable, there was a single threshold for the impact of new urbanization on agricultural green productivity, and after the threshold value was exceeded, the impact of new urbanization gradually increased. The coupling effect test found that the change trend of the coupling coordination degree between new urbanization and digital inclusive finance was basically consistent with the change of agricultural green productivity, which confirmed that there was a threshold effect of digital inclusive finance between new urbanization and agricultural green productivity.

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Analysis on the regional differences of urbanization development in Xinjiang

ABULIMITI Maliyamuguli, YANG Sheng-tian, MAIMAITI Bumairiyemu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 87-96. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.014

Abstract （47）

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Based on the entropy method, correlation coefficient and grey correlation analysis, SPSS, Matlab, and ArcGIS software were used to analyze the distribution and driving mechanism of regional differences in the level of population development level （PDL） and comprehensive urbanization development level （CUDL） at the prefectural and county scale in Xinjiang. The results showed that the CUDL of urbanization in Xinjiang was increasing. The northern and eastern Xinjiang showed an agglomeration-type growth, and the southern Xinjiang showed a decentralized slow growth trend. The overall trend was high in the north and low in the south. Some southern border counties were still underdeveloped; Xinjiang’s PDL and CUDL had changed significantly around 2006. The CUDL of Xinjiang showed a steady increase in 2010; there was a strong correlation between PDL and CUDL in Xinjiang, and the correlation degree between each subsystem and the score of urbanization level in Xinjiang was as follows： Economic urbanization > population urbanization > spatial urbanization > social urbanization.

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Empirical evaluation of agricultural development level based on AHP-TOPSIS coupling coordination model

XIE Lin-bo, YANG Zhen-yu, KUANG Bo-lin

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 97-103. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.015

Abstract （41）

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The domestic new agricultural development pattern system has developed rapidly in recent years. Aiming to accelerate the development of domestic agricultural circulation, the panel data from 2012 to 2020 in 31 provinces（autonomous regions and municipalities）was used to comprehensively evaluate the system of the new agricultural development pattern through the analytic hierarchy process（AHP）, entropy weight method, optimum distance method and coupling coordination model, and the analysis was conducted from two dimensions of time and space. The results showed that the top three provinces with high agricultural development level in 2020 were Shandong, Guangdong and Jiangsu, and their per capita GDP and agricultural development level were highly coordinated. The level of agricultural development in the western region had yet to improve relative to the central and eastern regions.

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The high quality development level of fishery in Hubei Province from the perspective of industrial chain

HUANG Yu-lu, LU Hong-gang, ZHENG Jia-xi

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 104-111. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.016

Abstract （46）

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Based on the perspective of the industrial chain, the connotation of high-quality development of fishery was systematically expounded, and a high-quality evaluation index system of fishery with 20 indicators in four dimensions,including upstream （breeding, feed production）, midstream （medical service, aquaculture system）, downstream （logistics transportation, primary processing, deep processing） and sustainable development, was constructed. Based on the data of counties （cities and districts） in Hubei Province from 2010 to 2019, the spatial and temporal evolution of high-quality development of fishery was analyzed, and the coupling relationship between two subsystems from the perspective of the industrial chain was measured. The results showed that the high-quality development level of fishery in Hubei Province increased first and then stabilized. The high-quality development areas were distributed in the Yangtze River and Han River Basins. The coupling degree among fishery industries in Hubei Province was in a highly coupled state, but the coordination degree was basically in a serious imbalance state. The coupling degree of each link in the fishery industry chain of each county （city and district） was high, but the coordination degree was basically in a serious imbalance state. Therefore, the coordinated development of all links of the fishery industry chain should be paid attention to, and a whole industry chain of production, processing and sustainable integration should be built according to the idea of “extending the first industry, connecting the two sides of the second industry, and taking the high end of the third industry”.

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High-quality development path of apple industry in Baoji City of Shaanxi Province

MA Liang, MENG Mei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 112-115. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.017

Abstract （53）

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The apple industry is the characteristic and advantageous industry in Baoji City,Shaanxi Province,and has played an important role in increasing agricultural output value, farmers’ income and reforming the agricultural supply-side structure. With the rapid development of the apple industry,the problems restricting the development of the industry had become increasingly prominent,mainly manifested in the imperfect cultivation system of new professional farmers,lagging agricultural socialization services,low level of comprehensive product processing,single planting variety structure,and imperfect agricultural insurance system. In order to promote the high-quality development of Baoji apple industry and break through the bottleneck of industrial development, some suggestions were put forward, such as cultivating high-quality farmers, improving agricultural socialization services, deepening the product deep processing technology, enriching the variety structure and ameliorating the planting insurance system.

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Characteristics of the economic development efficiency of animal husbandry in Xinjiang during the 13th Five-Year Plan period based on three-stage DEA-Malmquist index model

LUO Xue-hong, SU Xiang-hui, MA Ying, LIN Wen-ji, LI Shu-min

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 116-124. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.018

Abstract （50）

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In order to measure and improve the efficiency of animal husbandry economic development in Xinjiang, a three-stage DEA-Malmquist index model was used to analyze the input-output efficiency of animal husbandry economic development level in 14 prefectures and cities in Xinjiang during the 13th Five-Year Plan period. The results showed that, from the static analysis, only the counties （cities） directly under Yili Prefecture had unchanged returns to scale during the 13th Five-Year Plan period, showing DEA efficiency. In other areas, because of the decline of scale efficiency or pure technical efficiency, the comprehensive technical efficiency was DEA ineffective, and the scale mostly increased. From the dynamic analysis, Malmquist index was less than 1.000 during the 13th Five-Year Plan period, which indicated that the economic efficiency of animal husbandry in Xinjiang was declining, and the change of technological progress was the main reason that hindered the improvement of economic efficiency of animal husbandry. It should strengthen technical management, take the new animal husbandry management subject as the guide, improve the ability to optimize the efficiency of resource allocation, strengthen grassland protection and construction, and promote moderate scale. Areas with high efficiency level should maintain the advantages of animal husbandry economic development and carry out technology popularization; areas with low efficiency should increase investment in policies, registration systems, infrastructure construction, talents, technology, etc.

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Research on agricultural science and technology innovation, spatial agglomeration and farmers’ income increase in Shandong Province

FU Yi-jie, SUN Yu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 125-128. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.019

Abstract （50）

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Based on the data of Statistical Yearbook of Shandong Province from 2009 to 2018, the correlation analysis and regression test model were used to study the impact of agricultural science and technology innovation and spatial agglomeration on farmers’ income increase in recent years in Shandong Province. The results showed that the agricultural science and technology innovation and spatial agglomeration had a positive and significant effect on increasing farmers’ income. Based on this, some suggestions were put forward, such as increasing input in agricultural science and technology innovation, promoting independent innovation in agricultural science and technology in various places, rationally optimizing the resources generated by agricultural science and technology innovation, and improving the system of agricultural science and technology innovation, in order to promote farmers’ income to achieve a steady, sustainable and healthy increase.

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Spatial-temporal characteristics and influencing factors of high-quality agricultural development in the Yellow River Basin

ZHANG Zhuo-kang, LI Zhi-chao

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 129-136. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.020

Abstract （55）

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Based on the new development concept, the evaluation index system of agricultural high-quality development level was constructed. The data of 72 cities（prefectures and leagues）in the Yellow River Basin from 2008 to 2019 was adopted to reveal the spatial-temporal evolution characteristics and influencing factors of high-quality agricultural development level in the Yellow River Basin by using entropy method, standard deviation ellipse, Moran’s I index and spatial econometric model. The results show that the level of high-quality agricultural development in the Yellow River Basin had generally been improving during the study period, but there were still structural problems, and the level of innovative development and open development were weak links. The level of high-quality agricultural development showed an uneven spatial distribution, gradually changing from “high in the east and low in the mid-west” to “high in the east and west, low in the central”; regional agricultural development was spatially correlated, showing high-high agglomeration and low-low agglomeration; the level of socio-economic development and infrastructure promoted high-quality agricultural development, and population urbanization had a negative impact on high-quality agricultural development. This led to the conclusion that the Yellow River Basin should promote high-quality agricultural development by deepening agricultural supply-side reform, developing differentiated agricultural models, bringing into play regional agricultural radiation effects, and making full use of socio-economic factors.

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The characteristics of high-quality development of agricultural economy in the central, western and eastern regions under agricultural industry agglomeration

ZHANG Yuan-hui

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 137-141. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.021

Abstract （63）

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In view of the agricultural economy and development in the central, western and eastern regions, the impact of agricultural industry agglomeration on it was analyzed. The research found that agricultural industry agglomeration had a positive impact on the development of agricultural economy. Agricultural industry agglomeration could promote the centralized allocation of agricultural production factors, improve resource utilization efficiency, promote agricultural technology innovation and the extension of the agricultural industry chain, and enhance the added value and competitiveness of agricultural economy. The results of data analysis from 2014 to 2021 showed that the impact of agricultural industry agglomeration on the development of agricultural economy in the central, western, and eastern regions was in the order of eastern, central and western regions. The economic growth rate of the western region was the largest, exceeding that of the eastern region, which might be affected by policies such as national agricultural subsidies. The results indicated that agricultural industry agglomeration was helpful to achieve high-quality development of agricultural economy, and could provide support for increasing farmersʼ income and promote sustainable agricultural development. On this basis, some suggestions on agricultural industry agglomeration and the high-quality development of agricultural economy were put forward.

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Measurement and convergence of agricultural green production efficiency in the Yangtze River Economic Belt under carbon emission constraints

XU Dong-fang, KONG Ling-cheng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 142-149. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.022

Abstract （57）

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Agricultural green production efficiency in the Yangtze River Economic Belt was measured with the panel three-stage DEA model, and convergence analysis was made on this basis. The results showed that environmental factors and random errors had significant effects on agricultural green production efficiency in the Yangtze River Economic Belt. The agricultural green production efficiency in the upper, middle and lower reaches of the Yangtze River economic belt had obvious spatial imbalance phenomenon. The difference of agricultural green production efficiency among provinces（cities） in the three regions of the Yangtze River Economic Belt showed a decreasing trend. Based on this, in order to further improve and spatially optimize the agricultural green production efficiency in the Yangtze River Economic Belt, the following suggestions were proposed, such as clarifying the regional environment and adapting to local conditions; grasping regional differences and implementing precise policies; breaking down the regional barrier and promoting coordinated development.

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Spatial-temporal evolution characteristics and influencing factors of grain production efficiency in China

JI-Zhang Han-yu, YANG Hui-wen

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 150-156. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.023

Abstract （52）

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The grain production efficiency measurement index system was designed based on the input-output framework, and a dynamic DEA calculation model of grain production efficiency based on DDF was constructed to calculate the grain production efficiency of China from 2011 to 2019. ESTAD model and geographic detectors were used to identify the spatial-temporal evolution characteristics of grain production efficiency in China as well as its influencing factors. The results showed that, from 2011 to 2019, China’s grain production efficiency was relatively high on the whole, showing a small dynamic decline trend, as well as obvious regional differences. The stability of local spatial structure and spatial dependence direction of grain production efficiency in China was strong. The stability of local spatial structure in eastern and western China was higher than that in central China, while the stability in central and western China was higher than that in eastern coastal China. The proportion of provinces （cities, autonomous regions） with synergistic growth of grain production efficiency and neighboring regions was 51.6%, mainly located in the south of the Yellow River, and the spatial pattern integration showed the characteristics of diversification and differentiation. Macroeconomic factors had the greatest impact on grain production efficiency, while policy support factors had the least impact. However, the interaction between policy support and other factors had a nonlinear enhancing effect.

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Research on the configuration path of drought impact on grain production： Qualitative comparative analysis based on fuzzy sets

CAO Jiao-jiao

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 157-162. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.024

Abstract （50）

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Based on the perspective of configuration, this paper took 31 provinces（autonomous regions and municipalities）in China as research objects, and chose 1990, 1995, 2000, 2005, 2010, 2015 and 2020 as typical cases to explore the configuration path of drought and various factors affecting food production. The results showed that,food production was affected by many factors, and drought could not independently affect food production. There were four path configurations in high grain production, which were resource input type, government support type, government support + resource input type and government support + technology input type. There were six path configurations in low grain production, which could be summarized into three types, such as reduction due to drought + absence of government + lack of resources, reduction due to drought + lack of resources, reduction due to drought + lack of resources + lack of technology. The influencing factors of grain production were not only asymmetrical, but also had significant temporal and spatial differences.

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The impact of digital economy on grain production efficiency

YANG Hui-wen, JI-zhang Han-yu, FENG Tian-yi

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 163-170. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.025

Abstract （59）

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The measurement index system of digital economy was designed from three dimensions： digital infrastructure, digital industry and digital talents. The projection pursuit technology was used for dimensionality reduction processing to measure the development level of digital economy and the development level of each dimension. Then, the grain production efficiency was measured by constructing SBM-DEA model. Finally, the fixed effect model was conducive to the empirical analysis of the impact of digital economy on grain production efficiency during the 13th Five-Year Plan period. The results showed that the leading factors in promoting the development of digital economy had inter-provincial differences and regional characteristics. Compared with Guangdongʼs digital industry cluster, Beijing was more dependent on digital talent resources. Digital economy had a positive effect on improving grain production efficiency, but the influence ability was low. From the perspective of dimension, digital talent and digital infrastructure had a more significant effect on the improvement of food production efficiency compared with digital industry. Therefore, local governments should promote the coordinated development of the digital economy in a dynamic and balanced manner in light of local conditions, enhance the synergy between digital factors and agricultural production factors, and unleash the vitality of the digital economy in promoting food production and agricultural transformation in a precise and efficient manner.

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The temporal and spatial differences and convergence of maize eco-efficiency

LI Qian-nan, YE Feng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 171-176. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.026

Abstract （51）

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Maize eco-efficiency of the main producing provinces （cities and autonomous regions） from 2004 to 2018 was calculated by the EBM-Super-Malmquist index method, the temporal evolution and spatial distribution characteristics of maize eco-efficiency were analyzed, and the convergence of maize eco-efficiency was tested by the convergence method. The results showed that, maize eco-efficiency showed a fluctuating downward trend, and there were obvious characteristics of imbalance between regions. There were no σ convergence and absolute β convergence in maize eco-efficiency across the country and the four major regions, and regional differences would not be unconditionally narrowed. There were significant condition β convergence for maize eco-efficiency across the country and the four major regions. Disaster rate, financial support and human capital were important factors that affected β convergence of maize eco-efficiency condition.

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Measurement of agricultural ecological efficiency in Chongqing City based on undesired output SBM model and center of gravity model

FENG Hao, XIA Guo-feng, YOU Xian-ping

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 177-182. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.027

Abstract （42）

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Undesired output SBM model, correlation analysis model and center of gravity model were used to evaluate the agricultural ecological efficiency of Chongqing City from 2010 to 2018, the correlation of the spatial distribution of agricultural ecological efficiency in Chongqing in each year, and the evolution of the gravity center of agricultural ecological efficiency. The results showed that, from 2010 to 2018, the average value of agricultural ecological efficiency in Chongqing City had fluctuated upward, and the spatial distribution correlation of agricultural ecological efficiency had changed from a negative correlation to a positive correlation. The shift of the gravity center of agricultural ecological efficiency presented a spiral shape and was scattered in the Changshou District of Chongqing City.

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Evaluation of the coordinated development of agricultural, forestry, animal husbandry and fishery industrial structure adjustment in Guangxi and the whole country

XU Zhong-yu, DENG Guo-xian, LI Li-ju, LIN Shu-heng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 183-190. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.028

Abstract （55）

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The impact of the output value of various industries of agriculture, forestry, animal husbandry and fishery in Guangxi and the whole country on agricultural economic growth from 2005 to 2020 was analyzed by the grey correlation analysis method. The contribution rate and prediction model of the output value growth of agriculture, forestry, animal husbandry and fishery industry were constructed and regression analysis was carried out. Then the coordination degree of the contribution rate of the adjustment of agriculture, forestry, animal husbandry and fishery structure to economic growth was analyzed. The results showed that the grey correlation degree between the output value and the total output value of agriculture, forestry, animal husbandry, agriculture, forestry, animal husbandry and fishery service industry in Guangxi showed a decreasing trend with the change of years, and the output value of fishery had a good correlation with the total output value of agriculture, forestry, animal husbandry and fishery. The correlation between the output value and the total output value of agriculture, forestry, animal husbandry, agriculture, forestry, animal husbandry and fishery services in the whole nation decreased year by year, while the correlation between the output value of fishery and the total output value of agriculture, forestry, animal husbandry and fishery showed a fluctuating downward trend. The contribution rate of agricultural, forestry, animal husbandry and fishery structure adjustment to agricultural economy in Guangxi and the whole country was negative, and Guangxi fluctuated greatly. The national agricultural, forestry, animal husbandry and fisher structure adjustment was better than that of Guangxi. The adjustment of agricultural industrial structure in the whole country and Guangxi was high-quality coordination in 2007, 2008 and 2011, was good coordination in 2010, and was intermediate coordination in 2019. Therefore, in order to promote the adjustment and optimization of the structure of agriculture, forestry, animal husbandry and fishery in Guangxi and the whole country, it was necessary to enhance the energy power of forestry, agriculture, forestry, animal husbandry and fishery service industry, adjust the regional distribution of industries according to local conditions, extend the agricultural industry chain, and produce high-quality agricultural products, so as to achieve the purpose of promoting farmers’ income and agricultural economic growth.

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Driving effect of industrial structure upgrading on the temporal and spatial difference of regional water use intensity

LI Jia-hao, YANG Hao-lin, SUN Tao

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 191-198. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.029

Abstract （46）

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From the perspective of time and space, the effect of regional water use intensity was decomposed into the industrialization effect, industrial structure upgrading effect, water-saving technology effect of the tertiary industry, carrying capacity effect of domestic water use, and the scale effect of urban population water use. The LMDI decomposition expansion model of temporal and spatial differences in regional water use intensity was constructed. Taking the Yangtze River Economic Belt as an example, the driving channels and internal influencing mechanisms of industrial structure upgrading on temporal and spatial differences in water use intensity were explored in depth. The results showed that the upgrading of industrial structure was an important factor to inhibit the increase of water use intensity in the Yangtze River Economic Belt from 2000 to 2020, but its inhibitory effect had weakened year by year since 2012, and had turned to promote the growth of water use intensity, and then turned to inhibitory effect in 2020. Since 2011, there had been a weakening trend in the driving force of inhibiting or promoting the increase of water use intensity compared with Shanghai. The industrial structure adjustment of provinces and cities under the trend of service could inhibit the increase of water use intensity compared with Shanghai. Anhui Province, Jiangxi Province, Hunan Province, Jiangsu Province and Sichuan Province should strengthen the rational allocation of water resources between industries （especially between the first and second industries ） and optimize the water consumption structure within the industry （especially the second industry）. Guizhou Province, Hunan Province, Yunnan Province and Hubei Province had a low level of service, and still needed to further develop the tertiary industry.

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The mechanism analysis of farmers’ part-time employment affecting the integration of small-scale farmers into modern agriculture

TANG Yong, SUN Qian

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 199-204. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.030

Abstract （51）

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Combined with the problems existing in the integration of small-scale agricultural production into modern agricultural development, this paper put forward the driving factors for the formation of farmers’ part-time employment, the types of farmers’ part-time employment and their professional characteristics, and put forward the positive impact of farmers’ part-time employment on the integration of small-scale agricultural production into modern agricultural development from the perspective of income effect, entrepreneurship effect and human resource balance effect. From the perspective of deviating from agricultural development objectives, breeding ethical problems and affecting the overall advancement of agriculture, this paper analyzed its negative impact on the integration of small-scale agricultural production. Finally, from the perspective of promoting the transformation of farmers’ part-time businesses into farmers’ specialties and promoting the transfer of agricultural population, it put forward suggestions to promote the integration of small-scale agricultural production into the development of modern agriculture.

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The impact of livelihood capital of households of farm land transferred out on the choice of livelihood strategy： Micro demonstration based on CFPS data

FAN Zhu-zhu, LIU Guo-yong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 205-212. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.031

Abstract （53）

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On the basis of reasonable selection of variables and subdivision of farmers’ livelihood strategies, the data of China household tracking survey （CFPS） national integrated sample was used to construct a 6-dimension livelihood capital quantitative index system of natural capital, human capital, physical capital, financial capital, social capital and psychological capital. Multiple Logit models were used to empirically analyze the influence of livelihood capital on livelihood strategy selection. The results showed that the livelihood capital index and total index of farm land transferred out of the household had different differentiation characteristics. The larger the natural capital, physical capital and financial capital, the more inclined farmers were to choose the agriculture-oriented livelihood strategy; the larger the natural capital, human capital and social capital, the more inclined the farmers were to choose the livelihood strategy of concurrent farming; the larger the natural capital, human capital, social capital and psychological capital, the more inclined the farmers were to choose the livelihood strategy of part-time employment; the larger the human capital, social capital and psychological capital, the more inclined farmers were to choose the worker-oriented livelihood strategy. The relative risk ratio of farmers’ livelihood strategy selection was different for each influencing factor. According to this, the government should guide farmers to scale farmland management, improve social security services, improve the rural financial system, popularize non-agricultural skills training and other differentiated policies.

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The impact of population aging on peasant household entrepreneurship： Empirical analysis based on CLDS 2016 data

DAI Zhi-qiang, GUO Ru-liang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 213-221. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.032

Abstract （51）

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From the perspective of population aging, taking peasant household entrepreneurship as the research object and using the data of China labor dynamics survey （CLDS） in 2016, the Logit regression model was constructed. Two key variables, namely, willingness to migrate for work and Internet use, which had important influence on peasant household entrepreneurship, were introduced as intermediary variables and moderating variables respectively. The influence mechanism of population aging on peasant household entrepreneurship was explored. The results showed that the aging of population could significantly inhibit the entrepreneurship of peasant households and the willingness of rural households to work outside their homes. The willingness to work outside their homes played a partial intermediary role in the relationship between population aging and peasant household entrepreneurship. Internet use had a moderating effect on the relationship between population aging and peasant household entrepreneurship, and internet use weakened the inhibition effect of aging on peasant household entrepreneurship. After the robustness test by changing the empirical model and reducing the sample, the conclusion was still valid. According to the heterogeneity analysis by group, education level and social network level, the inhibition effect of population aging on peasant household entrepreneurship was heterogeneous under different education level and social network level. To this end, it was necessary to strengthen the construction of rural networks, encourage more migrant workers to return to the countryside and stay in the countryside to find employment and start businesses, provide talent support for rural revitalization, and jointly build a beautiful, rich and happy countryside.

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The influencing factors and promotion strategies of farmers’ entrepreneurial willingness

YANG Yi-ran, LIU Xin-min

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 222-230. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.033

Abstract （45）

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Based on the questionnaire data of 710 farmers in five typical rural innovation and entrepreneurship counties in Shandong Province, the principal component analysis method was used to extract 11 principal component factors from the internal factors of farmers and the external factors of the surrounding environment, and the core influencing factors of farmers’ entrepreneurial willingness were further empirically analyzed by using multiple regression. The results showed that all the extraction of 11 main composition factors had significant influence on farmers’ entrepreneurial willingness, and the relationship of each influencing factor from strong to weak was as follows： Perceived behavioral control, financial support, policy support, fear of failure, risk avoidance,perceived risk, entrepreneurial atmosphere, infrastructure, subjective norms, kinship networks and entrepreneurial attitude. Among them, fear of failure, risk aversion and perceived risk negatively affected farmers’ willingness to start a business. Finally, in order to improve the willingness of farmers to start a business, the corresponding countermeasures and suggestions were put forward from the technical training, policy support, entrepreneurial atmosphere, institutional security and other aspects.

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The impact of rural population aging on the consumption gap between urban and rural areas： Taking the Yangtze River Economic Belt as an example

LEI Xun, TU Wei-liang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 231-235. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.034

Abstract （62）

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Based on the provincial panel data of the Yangtze River Economic Belt from 2012 to 2021, the OLS model was constructed to analyze the impact of rural population aging on the urban-rural consumption gap in the economic belt. The results showed that the aging of rural population in the Yangtze River Economic Belt had a significant narrowing effect on the urban-rural consumption gap, while it had a significant expanding effect on the per capita consumption expenditure of urban and rural residents. The expanding effect on the per capita consumption expenditure of urban residents was smaller than that on the per capita consumption expenditure of rural residents. The regional regression results indicated that the aging of rural population had a significant narrowing effect on the urban-rural consumption gap in various regions of the Yangtze River Economic Belt, and the narrowing effect on the urban-rural consumption gap in the middle reaches was stronger, followed by the narrowing effect on the upstream, and the smallest effect was on the downstream.

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The supply of smart home care services in rural communities： Based on the perspective of attention theory

GUO Ye-ling, LI Jing

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 236-240. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.035

Abstract （66）

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Based on the perspective of attention theory, the problem of smart home care services supply in rural communities was discussed. The research found that under the background of digital rural construction, the continuous improvement of the digital literacy of the rural elderly population and the continuous attraction of technical advantages to the supply subjects implied the gradual embedding of the attention of both supply and demand sides, which provided an important premise for the supply of rural smart home care services. The supply of rural smart home care services took capacity development, government assistance, decision-making coordination and real-time supervision as the fulcrum to build an attention embedding, processing, synchronization and configuration mechanism for both supply and demand. Therefore, it was necessary to promote the construction of the rural smart home care service supply system by adhering to the government’s leadership, guiding the efficient operation of market attention, building a digital network, realizing the synchronization of multi-subject attention, consolidating factor support, laying the foundation for supplier attention embedding, strengthening publicity and education, and guiding the deep embedding of the elderly’s attention.

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Factors affecting the integration degree of migrants in relocated communities： Taking A, B and C Villages in Xundian County, Yunnan Province as an example

DONG Ya-ning, BI Dong, XIAO Hong-lei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 241-249. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.036

Abstract （42）

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Through the investigation of three relocated communities in Xundian County, Yunnan Province, using the Pearson and linear regression model, 22 indicators were selected based on the theory of social integration, the evaluation index system of influencing factors was constructed, the influencing factors of community integration degree with different types of immigrants were analyzed, and the key factors affecting the integration degree of immigrant communities were found out. The results showed that the community integration degree of immigrants was good, but the community integration degree of different types of immigrants had obvious differences, showing the overall trend of farming immigrants> part-time immigrants> migrant immigrants. The results provided a scientific decision-making basis for promoting the community integration after relocation.

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The functional degradation and governance countermeasures of the hollow village community

XIE Zheng-feng, MO Xue-fei, ZHANG Xiao-juan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 250-254. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.037

Abstract （49）

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On the basis of previous studies, the degradation of production function, living function, service function and organization coordination function of the hollow village community was analyzed. And then the driving forces of functional degradation in the hollow village community from three aspects of government power, market power and rural residents’ power were discussed. The function degradation mechanism of the hollow village community was analyzed by push-pull theory, collaborative model and cycle accumulation principle. Finally, some governance countermeasures of functional degradation in the hollow village community were put forward, including respecting farmers’ participation rights and subjectivity, improving rural endogenous development ability, strengthening rural public service supply and improving farmers’ organization degree.

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The application of improved ant colony algorithm in rural garbage treatment

LI Ting

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 255-259. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.038

Abstract （53）

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In order to reduce the transportation cost of rural garbage treatment, the ant colony algorithm was improved by introducing the saving factor, dividing the ants into two modes of labor division and cooperation of exploration ants and determining ants, and retaining the optimal path of the parent. And it was applied to the determination of the optimal path for the recycling of rural garbage trucks, thereby reducing the transportation distance. The performance comparison experiment of the improved ant colony algorithm and the maximum and minimum ant system showed that the improved ant colony algorithm tended to be stable when the number of iterations was 132, and its optimal value was 623.157 9, which was better than the maximum and minimum ants system. The results showed that the improved ant colony algorithm had better performance in finding the optimal path, and it could be used to determine the rural garbage recycling path, which provided a new idea for the field of rural garbage treatment.

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Analysis on the development maturity and key factors of new-type agricultural management entities in China：Taking the planting family farms in 29 provinces（municipalities and autonomous regions） as an example

WEI Wei, YIN Guan-yi, XIE Shuai, LOU Yi

HUBEI AGRICULTURAL SCIENCES 2024, 63 (3): 260-272. DOI: 10.14088/j.cnki.issn0439-8114.2024.03.039

Abstract （43）

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Based on the monitoring data of family farms in 29 provinces（municipalities and autonomous regions） from 2016 to 2018, taking the planting family farms as the research object, the farm development maturity from five dimensions of farm scale, management capability, management cost, utilization intensity and development vision was evaluated. The key factors contributing to farm development maturity in different regions were analyzed by location entropy index, and the main path of farm cultivation was explored. The results showed that the total cost, net income, total income and labor productivity increased with the expansion of farm operation scale, while the land productivity decreased. The ideal management scale showed obvious high distribution in the north and low distribution in the south, which was generally suitable for the total amount of arable resources. Family farms in the non-agricultural economically developed areas showed a trend of developing to a moderate scale. The development maturity of farms in all provinces was generally enhanced, and the high value area was migrating from east and south China to north China, because of the limitation of the quality and scale of cultivated land, circulation of land, professional talents and technical development, the development of family farms in the western and some central provinces was relatively backward. Machinery input, farm area, links with co-operatives and leading enterprises, and land transfer rent showed the highest location entropy index, and the contribution to the development maturity of local farms was mainly restricted by regional agricultural planting technology, land resource endowment, economic development level and policy support.

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Changes in the vigor of wheat seeds produced under different nitrogen application rates during seed production

ZHANG Min

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 1-5. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.001

Abstract （52）

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In order to explore the effect of nitrogen fertilizer on the seed vigor of wheat （Triticum aestivum L.） and find out the best fertilization amount, the wheat variety Jimai 22 was selected as the test material, the seeds under different nitrogen application rates were harvested for standard germination test, and the germination, seeding growth and physiological indexes of the seed were determined. The results showed that the yield and seed vigor index of wheat were the highest when the pure nitrogen application rate was 154 kg/hm² and 220 kg/hm², which was suitable for the production of high vigor wheat seeds. Under no nitrogen application, the seed yield and vigor index were the lowest, the seed water content was high, and the germination rate was the fastest, indicating that the seed texture of wheat with no nitrogen application became loose, and it was easier to absorb water during germination, thus accelerating the germination process. Under each nitrogen application level, the seed germination index did not change much. There was a very significant correlation between the absolute content of seed protein and the dry weight of seedlings （P<0.01）.

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Changes of growth and phosphorus utilization of highland barley under excessive phosphorus application

TAN Jian-xin

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 6-6. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.002

Abstract （35）

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To explore the upper limit of phosphorus fertilizer application for the main highland barley varieties and new highland barley strains, and find out the characteristics of growth, development, and nutrient absorption and utilization of new highland barley varieties （lines） under excessive phosphorus application, five treatments were set up, including control without phosphorus application （CK）, conventional phosphorus application treatment （P1）, and excessive phosphorus application treatments （P2, P3, P4）, to study the changes in growth and phosphorus absorption and utilization of highland barley under excessive phosphorus application. The application rates of P₂O₅ in the five treatments were 0, 56.2, 138.5, 220.8 and 277.0 kg/hm², respectively. The results showed that the highest tillering number of highland barley increased with the increase of phosphorus fertilizer application amount. Applying phosphorus could increase the number of mature ears of highland barley, but excessive phosphorus application could reduce the number of mature ears of highland barley. Applying phosphorus fertilizer could increase the plant height of highland barley, but when the amount of phosphorus fertilizer increased to a certain extent, the increase in plant height of highland barley was not significant. Applying phosphorus fertilizer could increase the average and maximum filling rates of highland barley, and with the increase of phosphorus application rate, they first increased and then decreased. The phosphorus fertilizer utilization efficiency, phosphorus fertilizer agronomic utilization efficiency, phosphorus fertilizer partial productivity, and yield of the two highland barley varieties （lines） showed a decreasing trend with the increase of phosphorus application amount. The above analysis showed that excessive application of phosphorus fertilizer would lead to a decrease in the number of ears of highland barley and a significant decrease in phosphorus fertilizer utilization efficiency.

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Technology integration and benefit analysis of rice+frog-mushroom comprehensive planting and breeding model

GONG Shi-fei, CAO Peng, GUO Yuan-ping, WANG Wei, ZHAO Chang-song, LUO Yi, LAN Yu-mei, XIAO Neng-wu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 12-16. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.003

Abstract （36）

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The rice+frog-mushroom comprehensive planting and breeding model is an ecological agricultural development model that efficiently utilizes the spatio-temporal resources of rice fields for annual production. In recent years, it has shown a good development trend in northwest Hubei and gradually formed a certain scale. The technical measures such as field supporting engineering construction, rice planting, frog farming, and Morchella esculenta （L.） Pers. cultivation technology measures of the model were expounded, and the comprehensive benefits of the rice+frog-mushroom comprehensive planting and breeding model and the conventional planting system were analyzed. The results showed that the yield to investment ratios of the rice+frog-mushroom comprehensive planting and breeding model and the rice-rape rotation model were 1.53 and 1.46, respectively. The average net income of the former reached 201 967 yuan/hm², which was much higher than that of the latter. Although the rice+frog-mushroom comprehensive planting and breeding model had a high cost investment, the entire process adopted green production technology, which improved the utilization rate of agricultural resources and product quality, and had good ecological and social benefits. Finally, relevant suggestions were put forward for the rational development of the rice+frog-mushroom comprehensive planting and breeding model.

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The combined application of organic and inorganic fertilizers significantly improved the physical and chemical properties of jujube orchard soil and the yield and quality of Ziziphus jujuba cv. Jinsixiaozao

ZHANG Zhi-ying, ZHANG Wang-lin, ZHANG Lian-shui

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 17-23. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.004

Abstract （37）

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Four treatments were set up, including single application of chemical fertilizer （T1）, single application of organic fertilizer （sheep manure）（T2）, combined application of 50% organic fertilizer nitrogen and 50% chemical fertilizer nitrogen （T3）, and no fertilization control （CK）. The effects of different fertilization methods on the physical and chemical properties of 0~20 cm soil in the jujube orchard and the yield and quality of Zizyphus jujuba cv. Jinsixiaozao were studied. The results showed that different fertilization treatments had different effects on the physical and chemical properties of 0~20 cm soil in the jujube orchard. Compared with CK and T1, the soil bulk density and pH of T3 decreased significantly （P<0.05）, and the soil porosity, organic matter content, total nitrogen, total phosphorus, available nitrogen and available phosphorus content of T3 increased significantly （P<0.05）. Compared with CK and T1, the appearance quality of jujube fruit in T2 and T3 was significantly improved, the longitudinal diameter and transverse diameter of jujube fruit treated with T2 and T3 were significantly increased （P<0.05）, the content of total soluble sugar and VC in jujube fruit treated with T2 and T3 were also significantly increased, and the bad fruit rate of T2 and T3 was decreased. The single fruit weight and yield of each fertilization treatment were significantly higher than those of CK. The yield and net income of jujube fruit in T3 were the highest, and were significantly higher than those of T1 （P<0.05）. In conclusion, the combined application of 50% organic fertilizer nitrogen and 50% chemical fertilizer nitrogen could effectively improve the physical and chemical properties of soil and significantly enhance the yield and quality of jujube fruit.

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The characteristics of wheat seeding growth and soil microorganisms under biological bacterial fertilizer

SUN Meng, NING Song-rui, YAN An, YANG Li, LU Qian-cheng, ZUO Xiao-xiao, LI Jing-yan, FAN Jun

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 24-29. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.005

Abstract （36）

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To explore the effects of different biological bacterial fertilizers on wheat growth, soil nutrients and microbial quantity, a pot experiment was conducted with wheat （Triticum aestivum L.） as the test object and no fertilizer as the CK control. Four kinds of biological bacterial fertilizers including water-soluble saline-alkali soil composite bacteria （A）, insoluble saline-alkali soil composite bacteria （B）, Bacillus subtilis （C）, Bacillus amyloliquefaciens （D） and three application gradients were set up. The growth index of wheat seedings, physical and chemical properties and microorganisms quantity of soil were determined. The result showed that the plant height, chlorophyll SPAD and aboveground dry matter of wheat seedings treated with four kinds of biological bacterial fertilizers A, B, C and D were higher than those of CK, and these growth indexes of wheat seedlings in each treatment increased with the increase of the amount of biological bacterial fertilizers. The contents of soil organic matter, total nutrients （total nitrogen, total phosphorus and total potassium） and available nutrients （alkali-hydrolyzable nitrogen, available phosphorus and available potassium） of wheat treated with four kinds of biological bacterial fertilizers were higher than those of CK. The number of culturable bacteria and actinomycetes in the soil of potted wheat treated with each biological bacterial fertilizer was higher than that of CK, while the number of fungi was lower than that of CK. Through principal component analysis, Bacillus subtilis （C） had the best effect on improving soil when the application amount was 0.80 g/kg.

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Screening, identification and culture conditions optimization of a highly efficient potassium-solubilizing bacteria

ZHANG Lei, QIU Lu-fan, LIU Li-hong, ZHAO Xue-yu, HAN Chun-mei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 30-36. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.006

Abstract （40）

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Five strains of potassium-solubilizing bacteria were isolated and screened from black soil paddy field. One strain （S1）with high efficiency of potassium-solubilizing was screened by its morphological characteristics and potassium-solubilizing ability. The species of S1 was identified by 16S rDNA, and the culture conditions of the strain were optimized by the single factor test and orthogonal test. The results showed that the five strains of potassium-solubilizing bacteria were all able to decompose potassium feldspar effectively. Strain S1 had the highest potassium-solubilizing ability with a potassium-solubilizing rate of 57.03%, and the content of potassium-solubilizing in the fermentation broth was 3.852 mg/L, which was the best potassium-solubilizing bacteria. The potassium-solubilizing strain S1 was identified as Burkholderia ambifaria. The optimized culture conditions were carbon source 1.0% mannitol, nitrogen source 1.0% peptone, inorganic salt 0.5% K₂HPO₄, culture temperature 30 ℃, culture time 48 h, liquid volume 80 mL/250 mL, initial pH 6.5, and inoculation volume 5.0%.

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Influencing factors of oil production rate of Chlorella pyrenoidosa

LI Cheng-cheng, LIU Kang-xin, DAI Bai-le, CHEN Xue-ru, TANG Hong-feng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 37-40. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.007

Abstract （33）

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BG-11 was used as the basic medium to establish different culture systems for Chlorella pyrenoidosa culture by adding and replacing different carbon and nitrogen sources, changing the proportion of carbon and nitrogen sources, removing phosphorus or sulfur and adding additional plant growth regulator, and the effects of various factors on the growth and oil production rate of Chlorella pyrenoidosa were investigated. The results showed that the growth and oil production rate of Chlorella pyrenoidosa were better than those of Chlorella vulgaris in both autotrophic and heterotrophic systems. The oil production rates of the two Chlorella species in the heterotrophic system were 20.14% and 18.66%, respectively. When glucose was used as the carbon source, the growth of Chlorella pyrenoidosa was the best and the oil production rate was the highest, and the oil production rate was 26.40%. When the nitrogen source was urea, the maximum oil production rate of Chlorella pyrenoidosa was got, and was 32.70%. The highest oil production rate of Chlorella pyrenoidosa was 34.42% when the carbon-nitrogen ratio was 30∶1. The oil production rate of Chlorella pyrenoidosa under sulfur deficiency increased by 28.54 percentage points compared with the control. Under the interference of jasmonic acid with the concentration of 1.5 mg/L, the oil production rate of Chlorella pyrenoidosa was the highest, which was 40.42%. The results indicated that the growth and oil production rate of Chlorella pyrenoidosa were better than those of Chlorella vulgaris; glucose was the best carbon source; urea was the best nitrogen source; the oil production rate was the highest when the carbon nitrogen ratio was 30∶1; sulfur deficiency had a greater effect on Chlorella pyrenoidosa; the oil production rate of Chlorella pyrenoidosa was the highest under the interference of jasmonic acid with a concentration of 1.5 mg/L.

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Growth status of invasive plant Alternanthera philoxeroides after adding earthworms

ZHANG Bao-cheng, JIANG Yan, ZENG Gang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 41-43. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.008

Abstract （38）

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Because the chemical substances in the invasive organisms themselves affected soil animals and soil processes, this experiment used earthworms, a common soil animal, and Alternanthera philoxeroides （Mart.） Griseb., an important invasive plant, as materials to study the effects of earthworms on physiological and biochemical indexes and growth of A. philoxeroides. The results showed that the content of chlorophyll a, chlorophyll b, carotenoid and total chlorophyll in leaves of A. philoxeroides increased with the increase of of the number of earthworms. The contents of starch and non-structural carbohydrate （NSC） in the leaves of A. philoxeroides increased with the increase of the number of earthworms. With the increase of the number of earthworms, the mass per unit area and tiller number of A. philoxeroides showed an upward trend. It could be seen that soil animals earthworms were beneficial to the growth of the invasive plant A. philoxeroides.

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Characteristics of soil physical and chemical properties in saline-alkali land of Yinbei under different land use patterns

WU Xia, WANG Zhang-jun, FAN Li-qin, ZHANG Yong-hong, WANG Xu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 44-48. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.009

Abstract （34）

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Taking saline-alkali land in Yinbei area as the research object, the effects of four land use patterns （dry land, paddy field, shrubbery and grassland） on soil bulk density, total porosity, organic carbon content, total nitrogen content, total phosphorus content, total potassium content, pH and total salt content in 0~20 cm and 20~40 cm soil layers were studied. The results showed that the soil physical and chemical properties of different land use types in Yinbei area were significantly different （P<0.05）. The soil bulk density of dry land and paddy fields was higher than that of shrubland and grassland, and the total soil porosity was lower than that of shrubland and grassland. The soil organic carbon and total nutrients of four land use types were similar in 0~20 cm and 20~40 cm soil layers. The content of organic carbon and total nitrogen was the highest in shrubbery, followed by dry land and paddy fields, and the lowest in grassland. The soil total phosphorus content in dry land and paddy fields was significantly higher than that in shrubbery and grassland（P<0.05）. The total potassium content was the highest in dryland soil and the lowest in paddy fields. The soil pH and total salt content of grassland were significantly higher than those of the other three land use types（P<0.05）, except for the 20~40 cm soil layer of dry land. The weighted gray correlation analysis showed that the correlation degree of soil physical and chemical properties in 0~20 cm and 20~40 cm soil layers was the highest in shrubbery, followed by dry land and paddy fields, and the lowest in grassland, indicating that shrubbery had the best effect on improving soil physical and chemical properties in Yinbei saline-alkali land.

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Spatial-temporal evolution and influencing factors of cultivated land in karst mountainous area

SHI Hou-jun, WANG Hong, LAN An-jun, YANG En-lin

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 49-55. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.010

Abstract （39）

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The spatial-temporal evolution and influencing factors of cultivated land in the karst mountainous area were analyzed using kernel density and transfer matrix methods with cultivated land data of Zhenfeng County, Guizhou Province from 2010 to 2020 as the object. The results showed that from 2010 to 2020, the cultivated land area decreased from 56 754.16 hm² to 39 715.85 hm², a total decrease of 17 038.31 hm², and the degree of fragmentation increased. During the study period, cultivated land was mainly converted into forest and garden land, which mainly occurred in the central part of the study area around Baiceng Township, Lurong Township, and Lugong Township, followed by the continuous occupation of cultivated land by construction land, which accelerated the reduction of cultivated land area. Natural and social factors jointly influenced the distribution of cultivated land and its changes, and cultivated land was mainly distributed on slopes of 6° to 25° and within 100 m of the buffer zone of roads and settlements.

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Eco-environmental quality evaluation based on multi-temporal RSEI： A case study in Xinmin City

WANG Jing-li, YU Peng-cheng, CAI Fu, LIU Hui-nan, GAO Tian-jiao

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 56-60. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.011

Abstract （39）

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Taking Xinmin City of Liaoning Province as the research object, based on the Landsat 8 OLI_TRIS data of similar months （May to June） in 2014, 2017 and 2020, four ecological factors [greenness （NDVI）, humidity （WET）, dryness （NDBSI）, heat （LST）] were extracted, and the remote sensing ecological index （RSEI） was constructed by principal component analysis to evaluate the spatial and temporal evolution characteristics of eco-environment quality in the study area. The results showed that the regional mean values of RSEI in Xinmin City in 2014, 2017 and 2020 were 0.397, 0.348 and 0.506 respectively, showing a trend of first decreasing and then increasing. From 2014 to 2020, the areas with poor eco-environmental quality and relatively poor eco-environmental quality were mainly distributed in the northwest region, and the area ratio decreased from 62.5% to 33.2%. The areas with relatively good eco-environmental quality and good eco-environmental quality were mainly distributed in the southeast, and the proportion of area showed an obvious trend of first decreasing and then increasing, from 21.3% to 18.4% and then rising to 37.0%. Among the four factors, greenness and humidity played a positive role in the quality of eco-enviroment, and the positive effect of humidity was generally more significant; dryness and heat played a negative role, and the negative effect of dryness was more significant.

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Effects of environmental and meteorological factors on the occurrence rule of citrus psyllid, an important transmission vector of citrus huanglongbing

MAI Xin-jing, WANG Pan, CAI Si-hang, HUANG Jiang-hua

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 61-66. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.012

Abstract （43）

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The sensitivity of the citrus psyllid （Diaphorina citri） to environmental and meteorological factors and its relationship with the spread of huanglongbing （HLB） were investigated. The basic information about the citrus psyllid was summarized and the impact of environmental factors （such as altitude, latitude, soil, field management, hosts, and biological factors） and meteorological factors （such as temperature, humidity, rainfall, light, and air pressure） on its occurrence patterns was explored. The information helped in predicting the occurrence of citrus psyllid and formulating effective control strategies to reduce the risk of huanglongbing transmission.

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Laboratory control of 19 insecticides against Lixus subtilis Boheman of Chenopodium quinoa

XU Zhi-ping, ZHAO Xiao-jun, XING-Kun, ZHAO-Fei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 67-72. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.013

Abstract （28）

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Using diatomaceous earth and yellow soil as pesticide carriers, 19 insecticides were used to control Lixus subtilis Boheman of Chenopodium quinoa in laboratory. The results showed that 40% chlorpyrifos EC and 40% phoxim EC showed the quick-acting property and sustained performance, and the control effects reached 100% after 7 days, which was recommended for production. Using diatomite as the carrier, the control effects of 5% acetamiprid EC, 3.2% beta-cypermethrin·emamectin benzoate ME, 5% emamectin benzoate SC and 20% dinotefuran soluble granule were significantly improved, and the control effects were 100.0%, 100.0%, 73.3% and 95.8%, respectively, after 7 days of administration, which could effectively control Lixus subtilis Boheman of Chenopodium quinoa, and it was recommended to use the mixed application of insecticide and diatomaceous earth in production.

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Effect of spraying lime sulfur on promoting fruit coloring of orah

HUANG Qi-chun, TAN Song-yue, WANG Ni-na, LIU Fu-ping, LIU Ji-min, HU Cheng-xiao, LIAO Hui-hong, HUANG Hong-ming, WEI Chi-zhang, CHEN Dong-kui, ZENG Zhi-kang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 73-77. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.014

Abstract （30）

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In order to verify the effect of spraying lime sulfur on the fruit coloring of orah, different treatments of lime sulfur were carried out in Chengxiang Town, Wuming District, Nanning City, Guangxi Province. The results showed that in the key period of maturity and color transformation（December 30th）, the spray of lime sulfur had a significant effect on promoting the red transformation and coloring of orah. A single spray of lime sulfur 1.2 Baume degree had the most significant effect on promoting the red transformation and coloring, and the redness value a* increased by 15.24% compared with CK. The overall coloration index CCI of orah was increased by 40.07% compared with CK, both of which reached the level of extremely significant differences. After a single spraying of 0.8 Baume degree, a* and CCI increased by 11.67% and 32.31% respectively compared with CK. All treatments sprayed with lime sulfur showed an improvement effect on reddening and coloring. According to field observation, the lime sulfur also had good control effect on diseases and pests such as canker, gray mold, aphids, thrips, scale insects, red spiders, etc.

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Determination of pollen ploidy of cabbage by flow cytometry

YANG Ding, LI Chong-juan, LYU Feng-xian, HE Jiang-ming, LAN Mei, HU Jing-feng, XU Xue-zhong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 78-81. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.015

Abstract （31）

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Pollen ploidy of Brassica oleracea var. capitata was determined by flow cytometry. Pollen of cabbage GL21028 was used as the material, and leaves were used as the control to compare the effects of two pollen treatments, three different cell lysates, and two nucleic acid dyes. Pollen cells obtained through B buffer could be directly stained, which was the easiest treatment method. Cabbage leaves and pollen were treated with “Aru” buffer and Y lysates and stains DAPI, and flow cytometry was used for detection. The DNA of the sample cells was concentrated, and there were few cell fragments. The prepared Y lysate could be used for the observation of cabbage material by flow cytometry. Cabbage pollen treated with B buffer could be directly used as the material for flow cytometry ploidy identification, no other treatment was required, and the prepared Y lysate could obtain better test results.

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Creation and identification of Brassica juncea var. longepetiolata Yang et Chen breeding materials resistant to clubroot

LI Chong-juan, YANG Ding, LYU Feng-xian, HE Jiang-ming, LAN Mei, YANG Hong-li, XU Xue-zhong, HU Jing-feng, ZHANG Li-qin

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 82-89. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.016

Abstract （34）

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The high quality breeding and clubroot disease resistance material of Brassica juncea var. longepetiolata Yang et Chen was created by introducing the clubroot disease resistance gene of Brassica rapa into Brassica juncea var. longepetiolata Yang et Chen through distant and reciprocal hybridization. The resistance of 10 Chinese cabbage materials to clubroot disease was analyzed by the combination of artificial inoculation identification and molecular marker identification, and one material CCR21002 was selected as the resistant resource to be created as the breeding material for clubroot disease resistance of Brassica juncea var. longepetiolata Yang et Chen. CCR21002 was used as the male parent and female parent to provide anti-clubroot disease genes, and the hybrid F₁ was obtained with the embryo rescue technique. F₁, whose plant morphology was more favorable to Brassica juncea var. longepetiolata Yang et Chen, was backcrossed to obtain BC₁, and the BC₁ generation plants were analyzed by morphology, cytology and disease resistance identification. The results showed that the backcross generation was more difficult to obtain than the hybrid generation. Among the 13 strains of BC₁ that survived by embryo rescue, only 1 strain was screened with genotype AABB and resistance to clubroot disease. The resistance gene was identified by molecular markers as CRb, and most of the traits of Brassica juncea var. longepetiolata Yang et Chen were retained in plant morphology. It was proved that a new germplasm resistant to physiological race 4 was obtained through remote cross and backcross with anti-clubroot disease Chinese cabbage, which could be used for backcrossing breeding.

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Effects of different concentrations of cadmium contaminated soil on kiwifruit

ZHENG Chang-rui, TANG Yun-lai, LIAO Hui-ping, LUO Zhong-wei, FANG Li, XU Xing-zhu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 90-95. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.017

Abstract （34）

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The effects of cadmium（Cd） contaminated soil with different concentrations on the growth of kiwifruit（Actinidia chinensis Planch.） and the accumulation and transfer rule of Cd in kiwifruit were studied by pot simulation experiment. The results showed that the fresh weight, rhizomes diameter, root length and leaf area of kiwifruit were all not significantly affected in the soil polluted by low concentration Cd. In the soil polluted by medium and high concentration Cd, the growth and development of kiwifruit were inhibited, and the fresh weight, rhizomes diameter, root length and leaf area were all decreased, and the growth was more severely inhibited with the higher concentration Cd; with the increase of soil Cd concentration, the absorption capacity of kiwifruit leaves increased but the enrichment capacity remained unchanged, the absorption capacity of kiwifruit stems increased but the enrichment capacity first decreased and then increased, and the absorption capacity of kiwifruit roots increased but the enrichment capacity first decreased and then tended to be stable; with the increase of soil Cd concentration, the transfer coefficients of kiwifruit first decreased and then tended to be stable, and the transfer coefficients were all less than 1. The heavy metal Cd was mainly enriched in the roots of kiwifruit. Under the conditions of different concentrations of Cd pollution, the enrichment coefficients of the roots, stems and leaves of kiwifruit were root > stem > leaf.

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Effects of nitrogen on growth and photosynthetic characteristics of Cinnamomum bodinieri seedlings under drought stress

TANG Jia-le, DUAN Hai-bo, WANG Jing

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 96-100. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.018

Abstract （28）

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To investigate the response to drought stress and the effect of exogenous nitrogen addition on drought resistance, 1-year-old Cinnamomum bodinieri seedlings were used as experimental materials, and the Hoagland nutrient solution was used as the nitrogen source. Two nitrogen levels, nitrogen deficiency （N₀） and nitrogen application （N₁） were set, and drought treatment was applied. The growth indexes, chlorophyll content and photosynthetic gas exchange parameters were measured at 0 d（normal water, W₀）, 3 d（mild drought, W₁）, 5 d（moderate drought, W₂） and 8 d（severe drought, W₃） after stopping watering, respectively. The results showed that drought stress could inhibit the growth and biomass accumulation of Cinnamomum bodinieri seedlings, reduce leaf chlorophyll content, induce stomatal closure, reduce intercellular carbon dioxide concentration, and inhibit the net photosynthetic rate of leaves. Exogenous nitrogen addition could promote the growth of Cinnamomum bodinieri seedlings, mainly reflected in the growth of the above-ground part, and could increase the chlorophyll content of the seedlings, and significantly increase the net photosynthetic rate of the seedlings under drought stress.

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Comprehensive evaluation of drought resistance of new flue-cured tobacco varieties in Henan Province by drought index method

SUN Ji-ping, LI Xue-jun, LI Li-hua, ZHAO Shi-min, SUN Huan, ZHOU Jun-xue

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 101-105. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.019

Abstract （25）

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Taking Zhongyan 100, Yunyan 87 and NC89 as control varieties, PEG（polyethylene glycol） simulated drought test and pot water control test were used to study the effect of drought stress on the new varieties. Drought index method was used to evaluate the drought resistance of the new flue-cured tobacco varieties in Henan Province. The results showed that Heluo No.1 had the strongest drought resistance; the second was Yunongxiang 201, which had strong drought resistance under moderate drought stress, and the normal growth of tobacco leaves was affected under severe drought; the drought resistance of Qushou No.1 was basically equivalent to that of the control variety NC89, Zhongyan 100 and Yunyan 87.

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The effect of exogenous selenium on the growth, physiological characteristics and selenium content of dandelion

MENG Xiang-long, ZHAO Zhi-guo, LIN Xiang-jun, SONG Xiao-qian, LU Qi, TANG Zhong-hua

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 106-111. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.020

Abstract （25）

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In order to study the effect of foliar spraying of exogenous selenium on the growth and quality of dandelion, a pot experiment was used to spray dandelion leaves with different concentrations of sodium selenite solution （0, 100, 200, 300, 400 μmol/L）, the effects of selenium on dandelion growth, photosynthetic system, antioxidant enzyme system, active ingredients and selenium content were analyzed. The results showed that, with the increase of spraying selenium concentration, growth indexes such as root length and fresh weight of dandelion showed a trend of first increasing and then decreasing. Compared with the control, the application of 200 μmol/L sodium selenite could significantly improve the photosynthesis rate and photochemical reaction efficiency of dandelion, and increase the content of photosynthetic pigments. The activities of SOD and CAT in dandelion leaves were the highest when the selenium concentration was 200 μmol/L, and the activity of POD was the highest when the concentration of selenium was 300 μmol/L （P<0.05）. Selenium application could effectively increase the content of chlorogenic acids, total flavonoids and total polyphenols in dandelion. Compared with the control, when the selenium concentration was 200 μmol/L, the contents of total flavonoids and total polyphenols were significantly increased by 49.73% and 31.34%, respectively. The selenium content of dandelion increased significantly after selenium application, and the selenium content of leaves and roots and the amount of selenium application were in line with a quadratic equation. Dandelion leaves were sensitive to changes in exogenous selenium concentration and were the main part of selenium enrichment. The study concluded that foliar application of 200 μmol/L sodium selenite was the best concentration for culturing selenium-enriched dandelion.

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Screening and preliminary evaluation of application potential of Astragalus membranaceus var. mongholicus seedling substrates

CHEN Feng-xin, TIAN Hong-ling, WANG Jun-hong, GAO Fen

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 112-117. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.021

Abstract （28）

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In order to provide the seedling substrates for cultivating high-quality seedlings to promote the production of transplanted-Astragalus membranaceus var. mongholicus （AMM）, six organic compound substrates were prepared by using vinasse as the main material supplemented with cow dung and biogas residues in this study. Their physicochemical properties and the content of alkaline nitrogen, available phosphorus and available potassium were measured. The organic compound substrates F2 （vinasse-cow dung 60-20） and Z2 （vinasse-biogas residue 60-20） were selected by analyzing the influence of auxiliary materials on the substrate properties via PLS-DA model and assessing the fertilization efficiency of each compound substrate via fuzzy evaluation method. Then, substrates F2 and Z2 were mixed with soil at the ratio of 3∶7 to make seedling substrate, respectively; and their application potentials were evaluated by seed germination and seedling growth test. The results showed that the physicochemical properties of each organic compound substrate could meet the requirements of conventional substrates, and the substrates F2 and Z2 had the higher evaluation coefficients of fertilization efficiency in the cow dung group and biogas residue group respectively. Among the mixed seedling substrates, the “F2+soil” group had the highest seed germination rate, and the germination potential and germination index were significantly higher than the “Z2+soil” and control groups; the whole plant length, height and fresh weight of seedlings were obviously superior to those of the seedlings in the other two groups. In sum, the organic compound substrate F2 had good performances, and the seedling substrate obtained by mixing F2 and soil could be used to cultivate high quality AMM seedlings and had good application potential.

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Effects of sowing depth and soil water content on rate of emergence and seedling growth of Cyathula officinalis

GUO Xiao-liang, ZHANG Ya-juan, DUAN Yuan-yuan, HUANG Hao

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 118-122. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.022

Abstract （25）

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By analyzing and comparing the effects of different sowing depth and soil water content on the seed rate of emergence and seedling growth of Cyathula officinalis, the suitable sowing depth and water content of seedbed soil were explored. The pot experiment was carried out with different sowing depth and soil water content treatments. Water was replenished by weighing, and germination potential, rate of emergence, seedling growth and physiological indexes were determined. The results showed that the sowing depth and soil water content had a significant influence on the seed rate of emergence and seedling growth. The germination potential and rate of emergence were higher when the sowing depth was 0.31~0.61 cm. When the seeding depth was 0.61~0.92 cm, the chlorophyll content of seedling leaves was higher and the stress resistance of seedlings was better. The germination potential and rate of emergence were higher when soil water content was 60.71%. The seedlings grew better when soil water content was 53.35%~60.71%. The seedlings had better stress resistance when soil water content was 38.62%~53.35%. The chlorophyll content in seedling leaves was higher when soil water content was 45.98%~53.35%. The suitable sowing depth of Cyathula officinalis seeds was 0.61 cm. The rate of emergence was higher and the emergence was orderly when soil water content was about 60.71%. After seed emergence, the seedling grew vigorously, the chlorophyll content of leaves was higher, and the seedlings had better stress resistance when soil water content was about 53.35%.

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Influence of water quality factors on the ecological cultivation of Chinese mitten crabs in Yangcheng Lake

WU Ke, WU Dong-mei, PAN Yun-sheng, QIAN Yu-lin, WU Jun-mei, XIA Yun-yu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 123-126. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.023

Abstract （28）

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An observation experiment site was established in Wushentan Village, Bacheng Town, Kunshan City to observe the water temperature, dissolved oxygen, pH, ammonia nitrogen and the growth dynamics of Chinese mitten crabs,to discuss the suitable water quality environment for the growth of crabs. The results showed that the water temperature had the greatest influence on crabs, with sudden changes in temperature or exceeding 30 ℃ leading to their death; dissolved oxygen showed a unimodal distribution during the day, indicating that algae contributed most to it. After mid-July, pH gradually decreased and leveled off, the lower overall value of ammonia nitrogen was beneficial for the growth of crabs. Water temperature around 28 ℃, dissolved oxygen maintained above 4 mg/L, and pH 7.5~8.5 were the suitable growth environment.

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Impacts of eco-spatial marine water changes on fish diversity in the Zhujiang River estuary

WANG Chan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 127-135. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.024

Abstract （26）

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Data about fish diversity in the Zhujiang River estuary from 2016 to 2018 were collected for the water environment data analysis and species diversity assessment. The results of RDA analysis showed that water depth, dissolved oxygen, water coverage, salinity, pH and water temperature had certain influences on fish, among which the degree of chromium influence on fish diversity accounted for 25.92% of the variables of overall water quality. During the experimental period, the parameters of seawater quality changed over time, and the response of family, genus, and species of fish to nitrite and lead changes was the most senstitive, especially the Cyprinidae. The large amount of industrial pollution discharged affected the fish population size. In addition, chromium and petroleum substances were the significant conditions that determined the fish diversity in the Zhujiang River estuary and largely limited the activity value of ecological space.

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Extraction process of total flavonoids from stigma maydis and Gynostemma pentaphyllum and preparation of the antihypertensive tablets

LIU Xia, MA Ze-gang, MA Lin

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 136-140. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.025

Abstract （18）

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Taking stigma maydis and Gynostemma pentaphyllum （1∶1） as the extraction raw material and the total flavonoids content as the investigation index, the effect of compound total flavonoids content was investigated by single factors including extraction solvent, ethanol volume fraction, extraction temperature, extraction time, material-liquid ratio and extraction times. Then, the extraction process of total flavonoids was optimized by the orthogonal test. Finally, the optimized total flavonoids were refined by D101 macroporous adsorption resin and prepared into antihypertensive tablets. The results showed that the best extraction process of compound total flavonoids was 50% ethanol volume fraction, the material-liquid ratio was 1∶10, and the extraction time was 3.5 h at 50 ℃. The quality of the prepared tablets （weight difference ±5.1%, fragmentability 0.83%, disintegration time 2.41 min） was in line with the relevant provisions of the Pharmacopoeia of the People’s Republic of China （2020 edition）, and the antihypertensive tablets could reduce the blood pressure of SHR rats.

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Optimization of forming process of Zhuang medicine Luoqianyu cataplasm based on AHP-CRITIC method combined with star design

XIE Meng-jiao, GUO Yong-xiu, LAI Xin-hong, LI Fang-chan, HUANG Yin, HUANG Ai-ai, WANG Ya-qin, HUANG Xue-ting, JIANG Lin

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 141-147. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.026

Abstract （25）

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Taking the initial viscosity, holding viscosity and comprehensive sensory evaluation as indexes, the weight of each index was determined by the AHP-CRITIC mixed weighting method, and the comprehensive score was calculated. The star design-response surface method was used to optimize the best forming process of Zhuang medicine Luoqianyu cataplasm. The results showed that the best blank matrix formulation of Zhuang medicine Luoqianyu cataplasm was NP-700 of 1.6 g, silica gel powder of 1.0 g, dihydroxyaluminum aminoacetate of 0.8 g, glycerol of 12.0 g, carbomer 940 of 0.5 g, CMC-Na of 0.5 g, EDTA-2Na of 26 mg, and deionized water of 10 mL. The preparation method was as follows： NP-700, silica gel powder and dihydroxyaluminum aminoacetate were swelled in glycerol as phase A, EDTA-2Na was dissolved in deionized water, carbomer 940 and CMC-Na were swelled as phase B, phase A was added into phase B to stir evenly, and the resulting blank matrix was mixed evenly with the prescribed cream. The optimized preparation process was stable and feasible, and the actual production was operable, which could be used for the preparation of Zhuang medicine Luoqianyu cataplasm.

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Comparison of volatile flavor compounds and fatty acids differences in beef from different parts of Guanling cattle in Guizhou Province

ZHOU Jing-rui, LUO Wen-ju, XU Hao-xiang, LEI Lu, RANG Jiang, JIANG Ling-ling, ZHAO Yuan-feng, YU Bo

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 148-153. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.027

Abstract （29）

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In order to study the differences in volatile flavor compounds and fatty acids composition of beef from different parts of Guanling cattle in Guizhou Province, a comparative analysis was conducted on the volatile flavor compounds and fatty acids composition in six parts of Guanling cattle eye meat, tenderloin, hip meat, beef brisket, rib, and upper brain. The results showed that a total of 68 main volatile compounds were identified in beef from different parts, with terpenes, and alkanes accounting for over 75.000%, which were important factors affecting beef flavor. Fatty acids were important precursors of volatile components, and their content directly affected the taste and flavor of beef. A total of 21 types of fatty acids were detected in beef, including 10 saturated fatty acids （SFA）, 4 monounsaturated fatty acids （MUFA）, and 7 polyunsaturated fatty acids （PUFA）;the content of fatty acids varied in different parts of the body, with unsaturated fatty acids accounting for 43.017%, 39.021%, 48.869%, 46.730%, 40.678%, and 45.147% of fatty acids in eye meat, tenderloin, buttocks, beef brisket, rib ribs, and upper brain, respectively.

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Establishment of quality standards for Zhuang medicine Schefflera kwangsiensis

WEN Hai-cheng, SU Yong-jing, XIE Ao, LI Can, WEI Wei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 154-157. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.028

Abstract （21）

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Microscopic identification and thin-layer chromatography identification methods were used to identify and study the Zhuang medicine Schefflera kwangsiensis from different regions. The moisture content, ash content, and extract content of the medicinal materials from different regions were determined according to the methods specified in the 2020 edition of the "Pharmacopoeia of the People’s Republic of China". The results showed that the microscopic identification characteristics of the Zhuang medicine Schefflera kwangsiensis were strong; the thin-layer chromatography identification method used cyclohexane∶acetone∶formic acid of 8.5∶1.5∶0.4 as the unfolding system, which had good separation and clear spots. The best spot separation was achieved with a spreading distance of 15 cm;using a 10% sulfuric acid ethanol solution as the chromogenic agent, the examination was conducted under a UV lamp （365 nm）; the moisture content of Zhuang medicine Schefflera kwangsiensis shall not exceed 12.00%, the total ash content should not exceed 6.00%, the acid insoluble ash content should not exceed 0.50%, and the water-soluble extract content should not be less than 9.50%. The method was easy to operate, stable and reliable, with good reproducibility and reasonable scope, which could provide a theoretical basis for the quality control of Zhuang medicine Schefflera kwangsiensis.

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Comparison of nutritional organs medicinal components of Alpinia katsumadae Hayata under two planting models

LUO Dun, WU Tong, LU Su-jun, YU Feng-qiang, LI Ting-yan, YANG Mei, CHEN Zhen-sheng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 158-162. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.029

Abstract （23）

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Using Alpinia katsumadae Hayata from Eucalyptus forest intercropping and Alpinia katsumadae Hayata from natural growth as research objects, the total flavonoid, polysaccharide, total phenolic, total saponin content and drying rate of Alpinia katsumadae Hayata nutritional organs （roots, stems, leaves） were determined. The results showed that the whole plant drying rate of Alpinia katsumadae Hayata with natural growth was 1.11 times that of Eucalyptus forest intercropping;the total flavonoid content of Alpinia katsumadae Hayata was 10.27~32.13 mg/g, among which Eucalyptus forest intercropping had the highest total flavonoid content in the leaves of Alpinia katsumadae Hayata, reaching 32.13 mg/g;the polysaccharide content of Alpinia katsumadae Hayata was 21.50~37.28 mg/g. Under natural growth conditions, the total polysaccharide content of Alpinia katsumadae Hayata was 1.15 times that of Eucalyptus forest intercropping;the total phenolic content of Alpinia katsumadae Hayata under the condition of Eucalyptus forest intercropping was 2.10 times that of Alpinia katsumadae Hayata under the condition of natural growth;the total saponin content of Alpinia katsumadae Hayata under the condition of Eucalyptus forest intercropping was 1.25 times that of Alpinia katsumadae Hayata under the condition of natural growth;according to principal component analysis, under the condition of Eucalyptus forest intercropping, the comprehensive score and ranking of the nutritional organs of Alpinia Katsumadae Hayata were higher than those of natural growth. In summary, the medicinal component content of the nutritional organs of Alpinia katsumadae Hayata was at a high level under both planting modes, and the Eucalyptus forest intercropping condition was more conducive to the accumulation of effective ingredients of Alpinia katsumadae Hayata.

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Design and application of an automatic monitoring system for Lasioderma serricorne （Fabricius） based on image processing

HU Yi-chao, SU Zan, CHEN Yi-chang, ZHANG Yan, SU Chen-yang, LIU Yong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 163-167. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.030

Abstract （24）

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Based on the demand for automatic monitoring of Lasioderma serricorne （Fabricius） in tobacco storage and cigarette production workshops, combined with the actual image characteristics of Lasioderma serricorne （Fabricius）, a Lasioderma serricorne （Fabricius） automatic monitoring system based on image processing was designed by overlaying segmentation image algorithms on the basis of labeled watershed algorithms. Fully automatic photography equipment was used to collect images of the corresponding traps at regular intervals, the images were transmitted to the server via wired network, and functions such as image recognition and counting, real-time display, over limit alarm, and historical curve viewing were completed on the server end. Many interference factors such as insect board smoke, insect body overlap, and light during the actual monitoring process of Lasioderma serricorne （Fabricius） were solved, and precise automatic image recognition and counting functions for Lasioderma serricorne （Fabricius） were implemented. Practical applications had shown that the system worked stably, with an average counting accuracy greater than 94.00%, and had good application prospects in tobacco pest monitoring in cigarette production workshops.

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Pricing strategy for agricultural product supply chain in live streaming E-commerce based on Stackelberg game theory

WANG Lei

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 168-173. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.031

Abstract （22）

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In order to gain a deeper understanding of the pricing strategies and challenges faced by the agricultural product supply chain in the live streaming E-commerce environment, the Stackelberg game theory and the framework and core features of the live streaming E-commerce agricultural product supply chain were introduced. The complexity of pricing issues in the agricultural product supply chain of live streaming E-commerce was evaluated, and multiple decision models based on assumptions were established. The effectiveness and applicability of these models were analyzed through numerical analysis methods. The results indicated that the selection of pricing strategies for agricultural product supply chains in the live streaming E-commerce environment had a significant impact on increasing the interests of all parties involved, and the centralized decision-making model had the best effect in achieving the maximization of overall supply chain benefits. The main challenges and decision-making difficulties faced by the live streaming E-commerce agricultural product supply chain were summarized, and the importance of optimizing the pricing strategy of the live streaming E-commerce agricultural product supply chain was concluded, in order to maximize the common interests of all participants in the supply chain. Suggestions and strategies for improving the pricing of agricultural product supply chains in live streaming E-commerce had been proposed. It was believed that in the context of the rapid development of live streaming E-commerce, adopting advanced game theory to scientifically analyze and optimize pricing strategies was crucial for improving the overall efficiency and competitiveness of the agricultural product supply chain.

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Construction of influencing factors and indicator models for regional agricultural drought resistance and disaster reduction capacity

ZHAI Xiao-yan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 174-178. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.032

Abstract （28）

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In order to prevent and control regional agricultural disasters, the influencing factors of drought were analyzed in Shandong Province. A drought warning model was constructed based on the influencing factors of drought, and the coupling relationship of various factors was analyzed. Finally, the constructed agricultural drought comprehensive evaluation model was applied to specific agricultural production environments. The results indicated that there were significant differences in drought resistance and disaster reduction capacity among different agricultural regions. The top three cities in the comprehensive assessment of agricultural drought were Yantai, Rizhao, and Qingdao, with comprehensive assessment values of 2.90, 2.87, and 2.86, respectively. The economically developed regions of Shandong Province were concentrated in coastal areas, which had sufficient technological, material, talent, and financial support, and strong agricultural drought resistance and disaster reduction capacity. For areas with poor rainfall and weak economy, agricultural drought resistance and disaster reduction capacity were relatively poor, concentrated in areas such as Dezhou City, Jining City, and Dongying City. It could be seen that in order to enhance the drought resistance and disaster reduction capabilities of these regions, it was necessary to start from financial investment, agricultural technology, emergency management, and other aspects to ensure the scientific development of regional agriculture.

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Effect of medium cost reduction measures on the growth of sweet potato tissue culture seedlings under continuous subculture

ZHAO Yuan-zeng, WANG Yong-gang, CHEN Dan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 179-184. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.033

Abstract （26）

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In order to reduce the production cost of rapid propagation of sweet potato （Dioscorea esculenta （Lour.） Burgill） tissue culture seedlings and improve the economic benefits of factory seedling cultivation,on the basis of MS basic culture medium, the effects of simplifying or replacing the composition of culture medium on the growth of sweet potato tissue culture seedlings under continuous subculture were studied through cost reduction measures such as simplifying the composition of culture medium, replacing deionized water with tap water, and replacing sucrose with granulated sugar. The results showed that using white sugar instead of sucrose had no significant effect on the growth of sweet potato tissue cultured seedlings, whether in primary or secondary culture. However, removing trace elements and organic matter from the culture medium, or using tap water instead of deionized water, all had adverse effects on tissue culture seedlings, leading to a decrease in plant height, a decrease in proliferation coefficient, and poorer root growth,and this adverse effect was further exacerbated after prolonged subculture, resulting in poorer growth of tissue cultured seedlings. Therefore, in the factory production of sweet potato tissue culture seedlings, white sugar could be used instead of sucrose to reduce the production cost of tissue culture, while other cost reduction measures were not suitable.

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SNP analysis of the ovarian transcriptome of Columba livia with different egg production numbers

MAO Nan-nan, SUN Yong-sheng, CHEN Hui, ZHOU Rong-yan, JI Ying

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 185-190. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.034

Abstract （29）

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In order to explore the genes and genetic markers related to egg production in Columba livia, STAR was used to compare high-quality transcriptome sequences of ovarian tissue transcriptome data from high and low egg production Columba livia with the reference genome,after removing duplicate sequences, single nucleotide polymorphism （SNP） screening was performed using GATK. After controlling SNP quality using VCFtools, principal component analysis, evolutionary tree construction, and Fst calculation were performed. KEGG enrichment analysis was used to identify the gene where the SNP was located. The results showed that the high-yielding egg group had a total of 298 957 SNPs, the low yielding egg group had a total of 296 137 SNPs, and the high-yielding and low-yielding egg groups had a total of 254 118 SNPs. The KEGG analysis results showed that the SNP gene was significantly enriched in the progesterone regulated signaling pathways of oocyte maturation, meiosis, and metabolism;102 specific SNPs were distributed on 14 annotation genes（LOC110357454, KDM5A, PIGS, BNC2, GBF1, SLAIN2, FGD4, DIAPH2, KIF3B, NFIB, EPG5, OSTF1, EMB, and ST3GAL3） in the high and low egg production groups, and the enriched signaling pathways may be closely related to their egg production ability.

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Evaluation of the efficiency of forestry poverty alleviation in the Dabie Mountains in Anhui Province：Based on the super efficiency SBM Malmquist index model

ZHANG Shi-ju, WU Hui

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 191-196. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.035

Abstract （23）

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Using panel data from Anhui Province from 2014 to 2020, combined with the super efficiency SBM and Global Malmquist index model, the time and spatial efficiency of forestry poverty alleviation in 12 counties in contiguous poverty-stricken areas of the Dabie Mountains in Anhui Province was evaluated. The results showed that the forestry poverty alleviation efficiency was relatively high in 12 counties in Anhui Province, and the forestry poverty alleviation efficiency in most counties was on the rise;technological efficiency progress was the main driving factor for the improvement of total factor production efficiency;regions with higher forestry economic efficiency had better greening and ecological environment construction;there were differences in the efficiency of forestry poverty alleviation among 12 counties, and the influencing factors varied. It was proposed to carry out support for characteristic forestry industries and tap into the multidimensional potential of forestry development;improve forestry poverty alleviation technology and scale efficiency, and optimize the allocation of forestry technology development factors;scientifically utilize forestry poverty alleviation models to enhance the endogenous sustainable development of the forestry industry;reasonably plan forestry industry resources and strive to achieve a win-win situation of ecological protection and consolidating poverty alleviation achievements.

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Research on the collaborative model and resource allocation of the water-energy-food system in the Yangtze River Delta：Based on the core position of water

HAN Zi-chen, WANG Bing-bing, WAN Kui, JIANG Yi-fan

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 197-204. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.036

Abstract （26）

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Through multi-objective planning, the collaborative analysis framework of the water-energy-food system was established. Based on the dimension of Yangtze River Delta urban agglomeration, the cooperative model of the water-energy-food system was constructed, and the deviation degree and economic benefit of the optimized composite system were calculated. The results showed that the comprehensive deviation degree of the water-energy-food system from 2001 to 2020 remained at a low level below 0.135,with large volatility and poor stability. From 2001 to 2020, both food output and energy exploitation maintained an upward trend, and food output was larger. In the early stage, energy exploitation was greater than the food output. After 2005, the food output increased rapidly, far exceeding the energy exploitation. The comprehensive benefit continued to rise, and the economic benefit of the synergistic model was relatively ideal. Accordingly, some suggestions of enhancing the linkage and symbiosis of the water-energy-food system, scientifically planning the integrated resource allocation project of water resources allocation, energy exploitation and food production, improving the overall input-output level of resources, and broadening the cross-regional flow path of resources were put forward.

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The impact of grain price and policy subsidies on farmers’ enthusiasm for growing grain： Based on the evolutionary game model

LIU Xin-chen, LIU Yu-cheng

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 205-211. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.037

Abstract （25）

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The evolutionary game model among farmers, government and third-party enterprises was constructed, and the evolutionary stability of farmers’ enthusiasm for growing grain in a balanced decision by all parties was theoretically analyzed. On this basis, the case data was used for simulation analysis, and the simulation results verified the theoretical analysis results. The study found that farmers’ enthusiasm for growing grain would change significantly with the fluctuation of grain purchase price; grain subsidy alone did not help farmers to increase their enthusiasm for growing grain; and prolonged subsidies might bring more uncertainty to farmers and third-party enterprises.

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Evaluation of agricultural water resources use efficiency of functional grain zone in China under the background of “Dual Carbon”

SHENG Yu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 212-218. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.038

Abstract （25）

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In order to explore the present situation of agricultural water resources use efficiency in China under the background of “Dual Carbon”, the SBM-Undesirable model with agricultural carbon emissions as undesirable output was established to measure and evaluate agricultural water resources use efficiency in three functional grain zones in China from 2011 to 2019. Then the Dagum Gini coefficient decomposition method was used to analyze the regional differences and sources of water resources use efficiency within and among the three functional grain regions. The results showed that the overall agricultural water resources use efficiency in China was at a high level, but there were dual problems of decreasing efficiency and increasing imbalance. There were great differences and significant synergies in agricultural water resources use efficiency among different regions. The water resources use efficiency was in the most stable equilibrium state within the grain main sales area. The contribution of supervariable density was the main source of the difference between groups of agricultural water resources efficiency in functional grain areas. Therefore, differentiated and targeted policies should be implemented according to the actual situation of each region, so as to comprehensively improve the efficiency of agricultural water use in China and promote the development of low-carbon and water-saving agriculture.

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Analysis of influencing factors and potential of Chinese corn product exports to countries along the “Belt and Road”

GAO Xue-mei, DONG Ye, XU Wen-qiang, BAO An-ming, BAI Chong

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 219-225. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.039

Abstract （22）

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43 countries along the “Belt and Road” were selected to measure the international competitiveness of Chinese corn products from 2015 to 2021 by using the trade competitiveness index, the influencing factors of corn products export were analyzed through the extended trade gravity model, and the export potential was measured. The results showed that the international competitiveness of Chinese corn products was weak and in an inferior position. Factors such as high economic aggregate of the two sides, high trade freedom, and common economic organization significantly promoted the export of corn products, while geographical distance and excessive population would hinder the export of corn products. Among the 43 sample countries, 3 were huge potential countries, 38 were potential exploration countries, and 2 were potential reconstruction countries. China should continue to strengthen the positive trade factors, weaken the negative factors, cultivate new corn extension products, and fully release the export potential.

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Analysis on profit management mode of agricultural products circulation enterprises under economic transformation

FENG Jiang-hua, LI Qiang

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 226-230. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.040

Abstract （21）

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The profit management mode of agricultural products circulation enterprises was defined, the profit management modes of agricultural product circulation enterprises in different development stages were comparatively analyzed, the premise condition of agricultural products circulation enterprise profit management mode was analyzed, and the pros and cons of agricultural products circulation enterprise profit management mode were cleared. From the aspects of obtaining the maximum profit motivation, reducing the debt cost motivation of agricultural products circulation enterprises and reducing the political cost motivation of circulation enterprises, the motivation and methods of the profit management mode of agricultural products circulation enterprises under the economic transformation were formulated. The method closely tied the management authority’s own interests with the long-term interests of agricultural products circulation enterprises, so that the two could develop in harmony.

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Governance of the risk of returning to poverty for poverty alleviation farmers in the context of rural revitalization

CHEN Shao-jun, ZHANG An-ruo

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 231-237. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.041

Abstract （16）

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Based on the theory of viable capacity and the framework of sustainable livelihoods, an analytical framework of “poverty return risk identification-poverty return risk response-viable capacity development” was constructed. Under the guidance of this framework, based on the field research in the M cross-county relocation resettlement area of Zhaotong City, Yunnan Province, the problems in the management of the risk of returning to poverty for poverty alleviation farmers were analyzed and optimization paths were proposed. The study found that the poverty alleviation farmers faced multiple risks of returning to poverty and had difficulties in livelihood transformation; the industry and employment in the resettlement area did not match, and poverty alleviation farmers lacked nearby employment opportunities; data collection by grassroots grid clerks was difficult, and dynamic monitoring and evaluation indicators lagged; and poverty alleviation farmers had insufficient endogenous motivation, and the development of viable capacities was difficult. To address these problems, a poverty return risk management system should be established, that was “based on the establishment of a dynamic monitoring mechanism to prevent the return of poverty, with the promotion of income generation of poverty alleviation farmers as the fundamental requirement, the promotion of industrial development in the county as the main focus, and the enhancement of the viable capacity of poverty alleviation farmers to realize comprehensive development as the core”, so as to promote the effective connection between consolidating and expanding the results of poverty eradication and rural revitalization.

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Information poverty governance strategies for rural elderly groups：Based on the public value theory

ZHENG Hui-min, LI Jing

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 237-241. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.042

Abstract （20）

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The theoretical analysis framework based on the public value theory was established, the problems of information poverty of rural elderly groups from the dimensions of supply and demand mismatch, insufficient information access and lack of information skills were deconstructed, and the specific practices of information poverty governance in Korea were comprehended, which contained information infrastructure construction, information education and information humanistic care. On this basis, based on the strategic triangle model, practical information poverty promotion strategies were proposed in the three dimensions of authorization environment, operation capacity and value target, respectively, in order to provide empirical references for the information poverty governance of rural elderly groups.

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Coupling coordination and regional differences in rural revitalization and rural infrastructure

XU Xiang-yun, WANG Yan-wei, XIA Zi-han, REN Fei-wu

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 242-250. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.043

Abstract （21）

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The 30 provinces （municipalities and autonomous regions） in China were selected as the research subject, and data from 2011 to 2020 were used as observational samples. The entropy weight method and coupling coordination model were used to calculate the level of coupling coordination between rural revitalization and rural infrastructure during the research period. On this basis, combined with Kernel density estimation and Dagum Gini coefficient, the regional differences and dynamic evolution trends of coupling coordination between rural revitalization and rural infrastructure in the four major economic regions were compared and analyzed. The results showed that, overall, the coupling coordination level between rural revitalization and rural infrastructure in various provinces and cities in China showed an upward trend over the years. The regions with the highest to lowest levels of coupling coordination development were the central, eastern, northeastern, and western regions. In terms of dynamic distribution, the eastern and western regions of China exhibited a two-tier differentiation in coordination development levels, with significant differences between the two regions. Both regions had provinces with higher levels of coupling coordination. The regional differences in the overall level of coupling coordination between rural revitalization and rural infrastructure in China were gradually narrowing. Regarding the sources of differences, regional differences were the main factors contributing to the differences in coupling coordination development among the four major economic regions, but their contribution rates showed a downward trend. The gap between the northeastern and western regions was gradually narrowing.

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Measurement and regional differences of rural revitalization development level in Shaanxi Province

CHEN Yan-bing

HUBEI AGRICULTURAL SCIENCES 2024, 63 (4): 251-258. DOI: 10.14088/j.cnki.issn0439-8114.2024.04.044

Abstract （24）

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The entropy method, Theil index and Kernel density estimation were used to measure and study the rural revitalization development level and regional differences in Shaanxi Province from 2012 to 2022. The results showed that in terms of development level measurement, the development level of rural revitalization in Shaanxi Province had increased year by year, with an average annual growth rate of nearly 4%. The development level of rural revitalization was shown in Northern Shaanxi > Guanzhong > Southern Shaanxi. The development level of rural revitalization in Southern Shaanxi showed the fastest growth. In 2022, Yan’an ranked first in the development level of rural revitalization, and Xianyang ranked last. In terms of regional differences, the overall differences in Shaanxi Province were significantly smaller, and the differences within the region were the main reasons for the overall differences in the development level of rural revitalization in Shaanxi Province. The differences in Northern Shaanxi fluctuated, and the differences in Guanzhong area were reduced, and there was little difference in Southern Shaanxi. The low-level urban areas of rural revitalization development in Guanzhong area accounted for more. Finally, suggestions such as adapting measures to local conditions, guiding and promoting joint development and implementing characteristic industries were put forward.

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