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Rural resilient community construction under the background of rural revitalization： Dimension construction and promotion strategy ZHOU Hong-su HUBEI AGRICULTURAL SCIENCES    2022, 61 (2): 117-122.   DOI: 10.14088/j.cnki.issn0439-8114.2022.02.023 Abstract （710）      PDF （1570KB）（1486）       Knowledge map    Save Under the background of rural revitalization, the risks faced by rural communities have the characteristics of complexity, uncertainty, linkage and so on, which shows that there is a certain vulnerability in the risk response of the community. Resilience is a new advocacy concept and model, resilience communities can take advantage of internal and external favorable conditions to effectively reduce the impact, maintain or restore specific structures and functions, adapt, reorganize, and learn to change, improve their own adaptability, enhance their own resilience, and better respond to unknown risks. Construct the focus and framework of rural resilient community construction including five dimensions of institutional resilience, process resilience, capacity resilience, cultural resilience and social capital resilience, and analyze their constructs and interrelationships. Among them, institutional resilience provides guarantee, process resilience plays a protective role, ability resilience forms the foundation, social capital resilience builds a platform, and cultural resilience acts as a link. Put forward strategies for the construction of rural resilient communities, and believe that institutional arrangements and emergency integration should be improved, process redundancy and full-cycle management should be emphasized, community hardware resilience and personnel resilience should be improved, a resilient culture and an atmosphere of mutual assistance, social capital should be cultivated, and services platform should be established, so as to enhance the risk response ability of rural communities in public crises, enhance the adaptability, learning, innovation and resilience of communities in risk response, avoid risks in rural communities, and promote the modernization of grassroots governance. Reference | Related Articles | Metrics

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Research Progress of Climate Factor on Quality Formation and Influence Mechanism in Rice WU Hai-bing, LIU Dao-hong, ZHONG Ming, WANG You-yuan HUBEI AGRICULTURAL SCIENCES    2019, 58 (2): 13-18.   DOI: 10.14088/j.cnki.issn0439-8114.2019.02.003 Abstract （514）      PDF （1337KB）（729）       Knowledge map    Save ： Besides genetic factors, climatic factors play an important role in rice（Oryza sativa L.） quality formation. In the process of growth and development of rice,climatic factors not only have some impact on enrich degree in rice,dry matter accumulation rate and pollen fertility and other aspects,also affect rice starch synthesis-related activity changes,and these are important factors in the formation of rice quality. The impact of climatic factors in the temperature and light were reviewed four aspects：milling quality,appearance quality,cooking and eating quality and nutritional quality. The results showed that the suitable temperature and light conditions were favorable for the improvement of head rice rate and rice gel consistency, reducing chalky grain rate and chalkiness degree,decreasing protein content,which were low in daily mean temperature, large temperature difference between night and day,strong light and short of sunshine length. The suitable temperature and light conditions for reducing the alkali value and reducing amylose content were high daily temperature, small diurnal temperature difference,weak light intensity and short sunshine length. In production,according to the different climatic conditions,choose rice varieties with strong stress resistance,such as thermostability,high light or low temperature. Strengthening weather forecast,according to the rice filling stage of possible weather conditions,manual adjustment to avoid adverse weather conditions at the same time with the transplanting date,suitable cultivation management plays an important role in improving the quality of rice. Reference | Related Articles | Metrics

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Research on influencing factors and potential of vegetable export trade between China and RCEP countries WANG Min, HUANG Shu-wen, YANG Chu-yi, JI Meng HUBEI AGRICULTURAL SCIENCES    2024, 63 (7): 219-223.   DOI: 10.14088/j.cnki.issn0439-8114.2024.07.035 Abstract （260）      PDF （1616KB）（341）       Knowledge map    Save Based on the background of RCEP implementation, the gravity model was constructed according to the panel data of vegetable export trade between China and RCEP countries from 2010 to 2020, the influencing factors of vegetable export trade between China and 14 member countries were empirically analyzed, and the trade potential was calculated. The results showed that the per capita GDP of both sides, population of the member countries, cultivated land area of China and the entry of APEC could significantly promote China's vegetable export; the trade potential value between China and RCEP countries was generally high, and they were all potentially pioneering; during the sample period, the trade potential of Laos and Myanmar fluctuated greatly and had great room for expansion. On this basis, some countermeasures and suggestions were put forward from four aspects of grasping the development opportunity of RCEP, strengthening the cooperation between governments, paying full attention to the heterogeneity between countries and increasing the support for vegetable technology research and development. Reference | Related Articles | Metrics

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The sedation and hypnosis effect of volatile oil from the root of Jasminum sambac based on the GC-MS and network pharmacology CHEN Rui, PAN Xiao-fang, YANG Nan, HUO Li-ni, CHEN Yang-ling, LIANG Tian Jian HUBEI AGRICULTURAL SCIENCES    2023, 62 (11): 84-91.   DOI: 10.14088/j.cnki.issn0439-8114.2023.11.015 Abstract （245）      PDF （7894KB）（205）       Knowledge map    Save The mechanism of sedation and hypnosis effect of volatile oil from the root of Jasminum sambac based on the GC-MS and network pharmacology was explored. The volatile oil components in the roots of Jasminum sambac were analyzed using GC-MS technology; potential targets were screened using databases such as TCMSP and Swiss Target Prediction, and relevant targets of “insomnia” were queried using the CTD （http：//ctdbase.org/） database; intersection targets were obtained using the Venny mapping software（https：//bioinfogp.cnb.csic.es/tools/Venny/index.html）, and a protein-protein interaction network （PPI） was constructed using the STRING database （https：//string-db.org/cgi/input.pl） to screen core targets of action; an active ingredient-target-pathway network diagram was created using Cytoscape 3.7.2 software, and main targets and signaling pathways were predicted through GO annotation and KEGG enrichment analysis; finally, the docking between the main active ingredients and their core targets was verified using the molecular docking software SYBYL. The results showed that a total of 23 compounds were identified from the roots of Jasminum sambac, and 12 active components and 77 targets were screened. It mainly acted on multiple targets such as CYP19A1, NCOA2, PTGS1, AR, SLC6A2 and CA1, and affected multiple signaling pathways such as neuroactive ligand receptor interactions and cancer pathways, thereby exerting its effects. The molecular docking results showed that most active ingredients had good binding performance with their core targets, mainly interacting through hydrophobic bonds and hydrogen bonds. Reference | Related Articles | Metrics

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Research progress on chemical modification of polysaccharides and its structure identification XIE Miao, QI Xiao-ni, WU Yang-yang, ZHANG Xin, DU Xiu-ju HUBEI AGRICULTURAL SCIENCES    2021, 60 (3): 11-17.   DOI: 10.14088/j.cnki.issn0439-8114.2021.03.002 Abstract （834）      PDF （1488KB）（774）       Knowledge map    Save Polysaccharide is a kind of biopolymer, which widely existing in nature, and possessing extensive pharmacological activities. However, not all original polysaccharides from natural products have ideal bioactivity, which depends on their structures. Chemical modification of polysaccharides will be benefit to improve their bioactivity and helpful to study their structure-activity relationship. Whether derivatives were prepared successfully or not, could be proven by Fourier transform infrared （FT-IR） spectra and Nuclear magnetic resonance （NMR spectra）. Methods of chemical modification of polysaccharide and their structural characterizations by FT-IR and Nuclear magnetic resonance NMR spectroscopy were mainly summarized in this paper in order to provide some references,promote the development of polysaccharide biology. Reference | Related Articles | Metrics

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Identification and expression analysis of miR482a in Pinus densata WANG Wen-li, ZENG Qian-qian, LIU Yan, QIU Zong-bo HUBEI AGRICULTURAL SCIENCES    2021, 60 (17): 135-138.   DOI: 10.14088/j.cnki.issn0439-8114.2021.17.028 Abstract （417）      PDF （3192KB）（532）       Knowledge map    Save Taking the gymnosperm Pinus densata as the experimental material, using the Pinus densata miRNA database constructed in the early stage of the laboratory, mir482a related to growth and development was screened by bioinformatics method, and NBS-LRR resistance protein （Unigenes45569） was verified to be the target gene of Pinus densata mir482a by RLM-5′ RACE method. The mir482a precursor sequence of Pinus densata cloned by PCR is 130 bp and can form a stable stem -loop hairpin structure, but the base conservation of its mature sequence is poor. Phylogeny showed that pde-mir482a had a close evolutionary relationship with the gymnosperm Picea europaea. qRT-PCR analysis showed that the expression of pde-mir482a was the highest in roots, followed by in stems. The expression level of target gene Unigenes45569 in roots and stems is relatively low, suggesting that pde-mir482a can participate in the growth and development of Pinus densata by regulating target gene NBS-LRR resistance protein （Unigenes45569）. Reference | Related Articles | Metrics

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A assessment model of water resources carrying capacity based on random forest algorithm and its application in Hubei province LU Jia-hui HUBEI AGRICULTURAL SCIENCES    2020, 59 (13): 72-76.   DOI: 10.14088/j.cnki.issn0439-8114.2020.13.017 Abstract （570）      PDF （1930KB）（632）       Knowledge map    Save An assessment system of water resources carrying capacity indicator was constructed according to pressure-state -response （PSR） framework, and the random samples were constructed based on index threshold. On this basis, the random forest algorithm was applied to evaluate the water resources carrying capacity in Hubei province. The results showed that the relationship between the index factors and the water resource carrying capacity could be well fitted by the random forest with a high accuracy. The scheme was of good maneuverability and certain application value. The random forest algorithm can recognize the importance of variable unbiased, and the research showed that the modulus of water demand and the modulus of water supply were the key factors affecting the carrying capacity of water resources in Hubei province. The spatial distribution of water resources carrying capacity in Hubei province was uneven. The carrying capacity of water resources in western Hubei and Xianning areas was of good grade, while that of eastern Hubei and middle Hubei was generalgrade. The Jianghan plain area with Wuhan as the core belonged to poorgrade. It was suggested that regional management of water resources should be strengthened to promote the development of water resources conservation ability and economic society synchronously. Reference | Related Articles | Metrics

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Exploring the anti-inflammatory mechanism of Angelica sinensis Radix- Cinnamomi cortex based on GC-MS and network pharmacology ZENG Ge-ge, LIU Yi, LIU Tian-qi, HUANG Zhen-yang, DING Chen-wei HUBEI AGRICULTURAL SCIENCES    2022, 61 (18): 113-119.   DOI: 10.14088/j.cnki.issn0439-8114.2022.18.020 Abstract （439）      PDF （4594KB）（1145）       Knowledge map    Save The chemical components of Angelica sinensis Radix- Cinnamomi cortex was identified, and the anti-inflammatory mechanism of the herb pair was predicted in combination with network pharmacology. GC-MS was used to analyze the volatile components of the herb pair, and then the potential targets of the active components were predicted through the TCMSP database and the Swiss Target Prediction database; inflammation-related gene targets were got through TTD database and GeneCards database; Cytoscape 3.7.2 software was used to construct a drugs-components-targets network diagram; string database and Cytoscape 3.7.2 software were adopted to build a target PPI network, then screening out key targets; the Clsuter Profiler program package in R 3.6.1 software was used to perform gene ontology （GO） function enrichment and KEGG pathway enrichment analysis for potential targets. The results showed that 35 kinds of volatile components were identified from the herb pair, accounting for 70.53% of the total volatile components. From the screening, 33 active compounds, 35 key targets, 1 296 biological processes, and 155 signal pathways were obtained. According to the prediction of network pharmacology results, the herb pair may regulate lipids and atherosclerosis, human cytomegalovirus infection, IL-17 and other signaling pathways through active ingredients such as β-caryophyllene, α-humulene, and α-pinene, and key targets such as TNF-, IL-6, and IL-1B, thereby synergistically exerting anti-inflammatory effects. Reference | Related Articles | Metrics

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Collaborative governance path of multiple subjects of rural social assistance in the post-poverty era： Based on SFIC model analysis WU Ya-fei, ZHANG Yuan-jie HUBEI AGRICULTURAL SCIENCES    2022, 61 (7): 197-202.   DOI: 10.14088/j.cnki.issn0439-8114.2022.07.037 Abstract （651）      PDF （1839KB）（1788）       Knowledge map    Save In order to improve the rural social assistance the ability and level of poverty governance, solve the existing in practice, such as low coordination of relief subjects and unsatisfactory results. Under the background of the era of poverty alleviation, relying on the collaborative governance theory and taking SFIC model as the analysis framework, the dilemma of multi-subject collaborative governance of rural social assistance was analyzed. It was proposed to realize the coordinated governance of multiple subjects of rural social assistance in the post-poverty era by building incentive mechanism, catalytic mechanism, communication mechanism and supervision mechanism. Reference | Related Articles | Metrics

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Analysis of influencing factors of farmland fragmentation based on geographical detector： A case study of Guangzhou City CHEN Jun-tao, LIN Jin-yao HUBEI AGRICULTURAL SCIENCES    2023, 62 (5): 14-21.   DOI: 10.14088/j.cnki.issn0439-8114.2023.05.004 Abstract （336）      PDF （2192KB）（273）       Knowledge map    Save Guangzhou was selected as the research area. The landscape pattern index method, comprehensive index method and principal component analysis method were used to construct the evaluation system of farmland fragmentation degree, and the comprehensive index of farmland fragmentation degree of each town and street unit in the region was calculated. Ten quantifiable factors of natural conditions and human social activity were selected, and the geographical detector model was used to detect the impact of 10 factors on farmland fragmentation. The results showed that all 10 factors were the influencing factors of farmland fragmentation in Guangzhou City. The influence of the single factor on farmland fragmentation from strong to weak was urban administrative center distance factor, temperature factor, GDP factor, slope factor and altitude factor, precipitation factor, construction land distance factor, road distance factor, water body distance factor and population density factor. The interaction of any two of the 10 factors showed two-factor enhancement or nonlinear enhancement. Based on the research conclusions, some suggestions were put forward to provide valuable decision-making reference for reducing the level of farmland fragmentation in Guangzhou City. Reference | Related Articles | Metrics

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Effects of cover plant in winter on soil CH4 and N2O emission under the ratoon rice system LYU Ze-fang, GAO Zhen-zhen, LIU Zhang-yong, JIN Tao HUBEI AGRICULTURAL SCIENCES    2020, 59 (15): 60-65.   DOI: 10.14088/j.cnki.issn0439-8114.2020.15.011 Abstract （485）      PDF （1811KB）（675）       Knowledge map    Save In order to study the effects of cover plant in winter on the CH4 and N2O emissions from ratoon rice system, the CH4 and N2O flux was observed by the static closed chamber-gas chromatography method under the treatment of ratoon rice-fallow （CK）, ratoon rice-rapeseed （FR）, and ratoon rice-milk vetch （MR）, respectively. Results showed that the CH4 and N2O flux of all treatments was low in the winter cover plant growing season, and was high in the rice growing season. The cumulative CH4 emissions in the main rice growing season occupied 85.89% to 97.48% of annual cumulative CH4 emissions. During the main rice growing season, the cumulative CH4 emissions in the treatment of MR was significantly lower than that in the treatment of CK and FR. Over the ratoon season, there was no significant difference in the cumulative CH4 emissions among each treatment, and which occupied 2.02% to 14.11% of annual cumulative CH4 emissions. The cumulative N2O emissions in the main rice growing season was 1.74 to 2.43 times of ratoon season. The cumulative N2O emissions of MR was significantly lower than that of CK in the main rice season, and there was no significant difference in the cumulative N2O emissions among each treatment in the ratoon season. The total annual global warming potential （GWP） of CH4 and N2O for each treatment was in decreased order of FR, CK, MR. And the GWP of CH4 and N2O in the rice growing season was significantly higher than that in the winter cover plant growing season. Meanwhile, the contribution of CH4 emission to GWP in rice growing season was much higher than that of N2O. Therefore, the main rice season is the key season for reducing the greenhouse gas emissions. And plant milk vetch in the winter season could reduce the CH4 and N2O emissions under the ratoon rice system compare plant rapeseed or fallow. Reference | Related Articles | Metrics

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Spatio-temporal evolution and coupling analysis of landscape ecological security in Balikun county from the perspective of Sansheng space ZHAO Juan, ZHANG Yun-xia, ZHANG Yong-fu HUBEI AGRICULTURAL SCIENCES    2021, 60 (22): 92-100.   DOI: 10.14088/j.cnki.issn0439-8114.2021.22.021 Abstract （439）      PDF （4826KB）（903）       Knowledge map    Save Based on the perspective of “Sansheng space”,we explored the evolution characteristics of landscape ecological security in typical arid areas,and comprehensively used landscape ecology, geostatistics and coupling coordination model. The spatio-temporal change characteristics and coupling coordination characteristics of landscape ecological security in Balikun county from 2013 to 2019 were analyzed systematically. The results showed that,①the forage ecological space and other ecological spaces in Balikun county were dominant, and the areas of forage ecological space and rural living space decreased by 22.94% and 26.49% respectively in 2019, while the areas of other ecological spaces increased. ②The landscape ecological security value of the study area showed an overall upward trend, and the proportion of basic safe areas and safer areas was more than 57.88% in 2019. ③ the Moran's I index of landscape ecological security value of each landscape unit in Balikun county was positive, and there was a positive correlation in space, which was mainly characterized by high-high aggregation and low-low aggregation, including convergence from 2013 to 2016 and divergence from 2016 to 2019. The semi-variation fitting optimal model of landscape ecological security value of each evaluation unit in 2013 and 2016 was exponential model, 2019 was linearl model, and the total variation of system caused by random factors （human activities） showed a downward trend. ④The coupling coordination degree of landscape ecological security value of Sansheng space increased year by year, in which the areas of basic coordination, moderate coordination and high coordination increased by 8 907.15 km2, 2 541.46 km2 and 4 797.08 km2 respectively, while 10 750 km2 and 5 490.38 km2 decreased in severe and moderately maladjusted areas, respectively. Reference | Related Articles | Metrics

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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 （205）      PDF （2156KB）（355）       Knowledge map    Save 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. Reference | Related Articles | Metrics

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Research Progress on Betula platyphylla LI Jin-xia, CHU Bo-yan, YIN Xin-yan, ZHAO Yu-fen, JIA Hong-shan, ZHAO Zhen-feng HUBEI AGRICULTURAL SCIENCES    2019, 58 (2): 5-5.   DOI: 10.14088/j.cnki.issn0439-8114.2019.02.001 Abstract （560）      PDF （1344KB）（943）       Knowledge map    Save ： Based on the extensive collection of reference document of Betula platyphylla, the development situation, natural distribution, ecological adaptability, breed techniques, cultivation and afforestation techniques, and pest control were all summarized. Suggestions and prospect for existential questions were put forward in order to provide theoretical and technical reference for future research. Reference | Related Articles | Metrics

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Research on the spatial pattern differentiation, causes and countermeasures of “non-grain production” cultivated land in Henan Province SHAO Yu-fei HUBEI AGRICULTURAL SCIENCES    2022, 61 (23): 234-238.   DOI: 10.14088/j.cnki.issn0439-8114.2022.23.046 Abstract （385）      PDF （1815KB）（976）       Knowledge map    Save With the help of GIS spatial analysis tools, the overall status, spatial pattern differentiation, and causes of cultivated land “non-grain production” crops in Henan Province were proved by using the grain crop planting area and total crop planting data of Henan Province as a whole and 18 prefecture-level cities. The results showed that during the “13th Five-Year Plan” period, the overall “non-grain production” level of cultivated land in Henan Province was around 30%, and there was a slow growth trend. Spatially, the spatial differences in the level of “non-grain production” in the western and southern mountainous areas of Henan Province and the eastern and northern plains were obvious. Finally, in order to strengthen the management and control of the “non-grain production” phenomenon of cultivated land in Henan Province, countermeasures and suggestions were proposed from the aspects of moderately adjusting the agricultural production structure, improving the income of grain planting, delineating the red line of non-grain production crop planting, and strengthening the construction of farmland infrastructure. Reference | Related Articles | Metrics

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Establishment of quality standard for freeze-dried tablets of Polygonatum sibiricum Delar. ex Redoute and study on the anti-tumor activity of diosgenin XU Yu-sheng, GAO Ming-ju, ZHAO Ning-dong, HUANG Zai-qiang, TAIN Ying-qiu, HU Zhan-yu, YU Zheng-yong HUBEI AGRICULTURAL SCIENCES    2022, 61 (13): 133-137.   DOI: 10.14088/j.cnki.issn0439-8114.2022.13.025 Abstract （602）      PDF （2237KB）（526）       Knowledge map    Save The freeze-dried powder samples of Polygonatum sibiricum Delar. ex Redoute from 4 different producing areas were used as materials, with reference to the quality standard of Polygonatum sibiricum Delar. ex Redoute in the 2020 edition of Chinese Pharmacopoeia. The total ash content was determined by the total ash determination method, the moisture content was determined by the drying method, the extract content was determined by the hot immersion method, the total sugar content was determined by the 0.2% anthrone-sulfuric acid method, and the diosgenin was determined by the HPLC method. The antitumor activities of diosgenin against A431 （human epidermal cancer cells）, H1975 （human lung adenocarcinoma cells） and Ramos （human B lymphocyte tumor cells） were investigated by the MTT method. The results showed that the moisture content of the samples was 2.8%~4.7% （not more than 18.0%）, the total ash content was 1.9%~3.4%（not more than 4.0%）, the alcohol soluble extract was 72.99%~78.99%, （not less than 45.0%）, and the total sugar was 7.95%~9.94% （not less than 7.0%）. The lowest content of diosgenin was 0.18%, and diosgenin was significantly resistant to A431. The established content determination method was simple, accurate and reproducible. Reference | Related Articles | Metrics

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Study on invasiveness of exotic mangrove species Laguncularia racemosa C. F. Gaertn. LIU Qiang, ZHANG Ying, ZHONG Cai-rong, YANG Yong, LI Dong-lin, ZHANG Shi-jie, ZHANG Jing-wen HUBEI AGRICULTURAL SCIENCES    2019, 58 (21): 60-64.   DOI: 10.14088/j.cnki.issn0439-8114.2019.21.012 Abstract （749）      PDF （1917KB）（1443）       Knowledge map    Save Aim at the contradictory views on the invasiveness of Laguncularia racemosa, the introduced exotic mangrove species in China, in both the researchers and the administrators of mangrove wetlands, the primary survey on the distribution of Laguncularia racemosa in Hainan island was carried out, and the issue based on the related literature was explored. Plants of Laguncularia racemosa grow very well and have high fecundity on the coastal wetlands in Hainan and south China, and some of the individuals have invaded in Hainan native mangrove communities. It has the potential risk of biological invasion. Some important points on research were proposed： The mechanism of competition between Laguncularia racemosa and native mangrove species and the effects of Laguncularia racemosa on the native mangrove communities and its succession trend; the mechanisms of Laguncularia racemosa propagule disposal in natural way; The mechanisms of genetic differentiation of Laguncularia racemosa population and the environmental adaptation, in that to enhance understanding of the potential invasiveness and its potential threat on the biodiversity of native mangrove species. Reference | Related Articles | Metrics

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Comparison test of interplanting Abelmoschus esculentus with Idesia polycarpa CHEN Yao-bing, LIU Han-zhen, ZHENG Xiao-jiang, YUAN Bing-wu HUBEI AGRICULTURAL SCIENCES    2019, 58 (13): 76-77.   DOI: 10.14088/j.cnki.issn0439-8114.2019.13.015 Abstract （561）      PDF （1377KB）（354）       Knowledge map    Save Five varieties of Abelmoschus esculentus （Linn.） Moench] were selected to interplant with Idesia polycarpa Maxim., their growth characteristics and yield were analyzed and compared. The results showed that, the growth stage and morphological characteristics of different Abelmoschus esculentus varieties were different, and there were significant differences in unit area yield. The yield of Green arrows and Five-fu was the highest, which were most suitable for interplanting with Idesia polycarpa maxim.. Reference | Related Articles | Metrics

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Multi scenario simulation of cultivated land landscape pattern in Western Hubei mountainous area based on PLUS model PENG Hong-bing, SONG Jian, YIN Wen, QIAN Zhao-dong, TENG Xin, MENG Xue HUBEI AGRICULTURAL SCIENCES    2023, 62 (11): 51-59.   DOI: 10.14088/j.cnki.issn0439-8114.2023.11.010 Abstract （247）      PDF （5953KB）（366）       Knowledge map    Save Taking 19 counties （cities, districts） in Western Hubei as the research object, the PLUS model was used to simulate the temporal and spatial evolution law of cultivated land landscape under the constraints of natural conditions and the dual constraints of natural and socio-economic conditions, and clarify the important influencing factors of cultivated land landscape pattern. The results showed that the number of cultivated land in Western Hubei would still show a downward trend in the future. The main factors affecting cultivated land change were elevation, vegetation cover and hydrological conditions. The spatial distribution pattern of patch shape was significantly affected by topography, which was characterized by superior in the north and inferior in the south; in terms of time change, the cultivated land patch shape showed an obvious trend of optimization and development. In terms of patch pattern, the overall spatial aggregation, connectivity and fragmentation of the cultivated land patch in Western Hubei were poor, and there was a risk of continuous deterioration of cultivated land patch pattern. The difference of multi scenario simulation showed that the regular development of the cultivated land patch would be limited by social and economic activities, and only driven by natural conditions, the cultivated land landscape was easier to develop in the direction of complexity and fragmentation. Reference | Related Articles | Metrics

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Comparative analysis of carcass traits,quality and nutrients of muscle among house-feeding yaks, yak-cattles and yaks with grazing YANG Xiao-lin, CHEN Yong, ZHU You-jun, ZOU Wan-rui, LONG Ze-jun, LI Sheng-nan, LIU Ying HUBEI AGRICULTURAL SCIENCES    2019, 58 (24): 170-174.   DOI: 10.14088/j.cnki.issn0439-8114.2019.24.041 Abstract （894）      PDF （1623KB）（749）       Knowledge map    Save In order to investigate the effect of house-feeding on carcass traits and quality and nutrients of muscle, six male Jinchuan male yak and three male cattle-yak with similar medium body condition were selected randomly, and divided into two groups with or without the house-feeding, while the performance of slaughter, the quality and nutrient composition of the muscle among three groups （the yak, the cattle-yak, and grazing yak groups） were observed. The results showed that the live body weight, carcass weight, net meat weight and meat-bone ratio of the yak with house-feeding were higher than those of the grazing yak significantly （P<0.05）, on the contrary, there was no significant difference between the yak and cattle-yak in the carcass weight, bone-to-bone ratio and the gain of body weight. The hydraulic performance of the yak muscle wasn’t affected by the house-feeding, which improving the tenderness of raw meat and the ratio of cooked meat and those are beneficial to the production of downstream process products. What’s more, the test results showed that the content of various nutrients and amino acids in the yak meat among the three groups were not different significantly, that is to say, the pattern of house-feeding have no significant influence on the nutrient of the yak meat. Reference | Related Articles | Metrics