摘要
在作物生产的过程中,由降雨、灌溉等因素造成的农田土壤侵蚀及氮磷流失会导致土地生产力退化,威胁粮食生产,因此需要分析农田土壤侵蚀及氮磷流失的影响因素。不同种植模式对水土保持有着不同的影响,本文围绕旱作、水作及水旱轮作3种种植模式,对自然降雨条件下的产流产沙及径流氮磷流失规律进行研究,明确流失特征,其结果可为农田水土保持和粮食生产安全提供参考。
In the process of crop production,farmland soil erosion and nitrogen and phosphorus loss caused by factors such as rainfall and irrigation will lead to the degradation of land productivity and threaten food production.Therefore,it is necessary to analyze the factors affecting farmland soil erosion and nitrogen and phosphorus loss.Different planting patterns have different effects on soil and water conservation.This study focuses on three planting patterns:dry farming,wet farming,and wet-dry rotation.It studies the runoff and sediment production and runoff nitrogen and phosphorus loss under natural rainfall conditions,and clarifies the loss characteristics,which can provide a reference for farmland soil and water conservation and food production security.
作者
刘帅
Liu Shuai(Shanxi Branch of Shuifa Planning and Design Co.,Ltd.,Taiyuan 030027,China)
出处
《吉林水利》
2025年第1期40-45,共6页
Jilin Water Resources
关键词
土壤侵蚀
种植模式
氮磷流失
Soil erosion
Cropping patterns
Nitrogen and phosphorus losses
