平原区流域非点源污染研究进展

为了研究非点源污染在国内外的研究现状，对研究过程中所涉及到的非点源污染以及处理非点源污染的方法做出界定，并重点阐述了SWTA模型的理论基础。然后通过对非点源污染的转化过程和污染负荷量的研究及各种处理方法的优缺点比较，得出非点源污染物质的流入负荷量和流达率可确定，但污染物质的流达过程的解析、对目标流域水质的贡献率等方面还缺少深入研究的结论。

Research Progress on Nonpoint Source Pollution in Plain Watershed

In order to study the research status of non-point source pollution at home and abroad, this paper has defined the nonpoint source pollution and the processing methods for nonpoint source pollution involved in the research. In addition, it has clarified the theoretical basis of SWAT model. Then it has made the research on the conversion process of non-point source pollution and pollution load and the comparison of advantages and disadvantages of various approaches. We arrive at a conclusion that non-point source pollutant load and flow of inflow rate can be determined, but the flow of pollutants of the analytic process, the goal of the contribution rate of river water quality and other aspects still lack in-depth study.