摘要
磁湖在点源污染总体得到控制后主要污染源来自非点源污染,水体非点源污染物绝大多数是通过降雨(特别是暴雨)产生地表径流后进入的。以磁湖流域3次典型降雨产生的地表径流为研究对象,分别就进入磁湖的城市地表径流、农田地表径流、林区地表径流总氮进行分析,结合磁湖流域年降雨量初步估算进入磁湖的非点源污染氮负荷,为磁湖富营养化的控制提供依据。
After the overall control of point pollution of Cihu Lake, the major pollution sources came from non - point pollution. The vast majority of non - point source pollutants of water body went into the lake through the surface runoff caused by rainfall（especially the rainstorm）. Taking the surface runoff after 3 typical rainfall as the object ,the nitrogen going into the Cihe Lake from the city surface runoff, agricultural runoff and forest run- off were respectively analyzed. The preliminary estimation of the non - point pollutin input load based on annual rainfall provided the reference for the control of eutronhieation of Cihu lake.
出处
《黄石理工学院学报》
2011年第2期12-18,共7页
Journal of Huangshi Institute of Technology
基金
湖北省自然基金项目(项目编号:2007ABA242)
湖北省高等学校优秀中青年科技创新团队项目(项目编号:T200709)资助
关键词
非点源污染
地表径流
SCS模型
氮负荷
防治对策
non - point source pollution
surface runoff
SCS model
nitrogen load
control measures
