农业非点源氮污染研究进展分析  

Analysis of the Research Development of Agricultural Nonpoint Source Nitrogen Pollution

作　　者：闫瑞[1] 闫胜军[1] 赵富才[1] 郭青霞[1] 

机构地区：[1]山西农业大学资源与环境学院,山西太谷030801

出　　处：《环境保护科学》2014年第4期49-55,共7页Environmental Protection Science

基　　金：国家自然科学基金(41071345)项目资助

摘　　要：概述了非点源污染的概念、特征及非点源氮素对水环境的影响,阐述了两种形态的非点源氮素NH+4-N和NO-3-N的迁移机理、流失途径(地表径流和渗漏淋失)及其自然和人为影响因素;非点源污染负荷定量计算的方法,及计算非点源污染负荷模型的发展趋势。提出了控制农田非点源氮素的措施。In this paper,the concept and features of nonpoint source pollution and the impacts of nonpoint source nitrogen on water environment are summarized.The migration mechanism and release routes （surface runoff and leaching） of nonpoint source nitrogen in two forms of NH4＋-N and NO3--N are analyzed.The natural and anthropogenic influencing factors are illustrated.Furthermore,the method of quantitative calculation of nonpoint source pollution load and the development trend of the calculation model are discussed.Finally,measures for agricultural nonpoint source nitrogen control are proposed.

关 键 词：非点源污染 农田氮素 控制对策 

分 类 号：X71[环境科学与工程—环境工程]