内蒙古河套灌区农业常规管理下土壤硝态氮与氮淋失的元分析

doi:10.14088/j.cnki.issn0439-8114.2024.02.007

湖北农业科学 ›› 2024, Vol. 63 ›› Issue (2): 36-40，49.doi: 10.14088/j.cnki.issn0439-8114.2024.02.007

内蒙古河套灌区农业常规管理下土壤硝态氮与氮淋失的元分析

严佳乐^a, 赖黎明^a,b, 董瑞敏^a, 杨旸^a,b, 王海伟^a,b

a.河套学院,农学系,内蒙古巴彦淖尔 015000;
b.河套学院,院士专家工作站,内蒙古巴彦淖尔 015000

收稿日期:2023-02-15 出版日期:2024-02-25 发布日期:2024-03-14
通讯作者: 赖黎明（1965-）,男,河南汝南人,教授,博士,主要从事土壤学、农业生产活动对土壤与环境的影响研究,（电话）18547808369（电子信箱）liming.lai@qq.com。
作者简介:严佳乐（2000-）,女,内蒙古武川人,在读硕士研究生,研究方向为农业资源与环境,（电话）13214035621（电子信箱）jiale.yan@qq.com。
基金资助:
内蒙古自治区自然科学基金项目（2020MS04001）; 内蒙古自治区科技计划项目“河套灌区农业土壤二氧化碳排放与质量提升研究”; 内蒙古自治区科技厅项目“河套学院巴彦淖尔生态治理与绿色发展院士专家工作站建设”

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

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

a. Department of Agronomy, Hetao College, Bayannur 015000, Inner Mongolia, China;
b. Academician and Expert Workstation, Hetao College, Bayannur 015000, Inner Mongolia, China

Received:2023-02-15 Online:2024-02-25 Published:2024-03-14

摘要/Abstract

摘要： 为了控制氮肥量、节水、提升土壤地力,通过收集已发表结果的数据,采用元分析方法系统地探索了内蒙古河套灌区土壤硝态氮与氮淋失量状况及其相关因素。结果表明,常规管理下玉米（Zea mays L.）地、向日葵（Helianthus annuus L.）地、春小麦（Triticum aestivum L.）地土壤表层（0~20 cm）平均硝态氮含量分别为22.78、9.92、17.80 mg/kg,土壤平均氮淋失量分别为49.82、45.11、93.73 kg/（hm²·年）,常规施氮（N）量分别为357.7、233.2、320.0 kg/hm²。常规施氮量导致的土壤氮淋失量是不施用氮肥的6.76倍,其主要影响因素为土壤质地、土壤表层有机质含量、土壤表层pH、作物类型、灌溉量。这表明河套灌区常规管理下的施氮量偏高,地力随时间有降低的趋势,氮淋失较严重。

关键词: 土壤硝态氮, 土壤氮淋失, 农业常规管理, 元分析, 河套灌区

Abstract: 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.

Key words: soil nitrate nitrogen, soil nitrogen leaching, conventional agricultural management, meta-analysis, Hetao Irrigation District

中图分类号:

S156.4

严佳乐, 赖黎明, 董瑞敏, 杨旸, 王海伟. 内蒙古河套灌区农业常规管理下土壤硝态氮与氮淋失的元分析[J]. 湖北农业科学, 2024, 63(2): 36-40，49.

YAN Jia-le, LAI Li-ming, DONG Rui-min, YANG Yang, WANG Hai-wei. Meta-analysis of soil nitrate nitrogen and nitrogen leaching under conventional agricultural management in Hetao Irrigation District, Inner Mongolia[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(2): 36-40，49.

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内蒙古河套灌区农业常规管理下土壤硝态氮与氮淋失的元分析

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

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