【摘要】 针对农业非点源污染的研究现状,综述了非点源污染的定义、特征、污染现状以及危害,并介绍了国内外学者在非点源污染研究的技术方法方面的进展,指出利用与RS、GIS的紧密结合来建立基础信息数据库,对非点源污染过程进行模拟是进行非点源污染研究必然的发展趋势,并简单介绍了两个在国内外应用较广泛的非点源污染模型AnnAGNPS和SWAT模型,最后讨论了利用模型模拟非点源污染过程的优势。更多还原

【Abstract】 Agricultural non-point source pollution(NPSP) has became an important factor to water eutrophication,this paper demonstrates the definition,characteristics,and the hazards of non-point source pollution,and introduces the study of non-point source pollution in the technical methods of progress making of domestic and foreign scholars,and notices that the usage of RS & GIS in this study,and the close integration of GIS to build simulation model that is based information database for non-point source pollution is the inevitable trend of development.Finally this paper discusses the greatest advantage of using model to study non-point source pollution.更多还原