... Nonpoint Sources 非点源 ; 非点来源 Nonpoint source pollution 非点源污染 Rural nonpoint pollution 农村面源污染治理 ...
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The water quality of Miyun reservoir is at medium -eutrophication situation caused by the nonpoint sources pollution (NSP) in the upper watershed, which is due to the soil erosion and the widely application of fertilizers and pesticides in this watershed.
由于受上游非点源污染的影响，目前水体的营养程度为中营养型，其营养物质的主要来源于流域中水土流失和大面积施用化肥。 因此，研究密云水库上游的非点源污染对保护密云水库有着特殊的意义。
参考来源 - 北京市密云水库上游石匣小流域非点源污染特征研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Sources of water pollution can be classified broadly into two categories: point sources and nonpoint sources.
水体环境污染源按其发生类型分为点源、非点源。
The definitions of urban nonpoint source pollution were summarized, and the categories, sources, hazards and factors of urban nonpoint source pollution were discussed.
总结了城市非点源污染的定义，探讨了城市非点源污染的种类、来源、危害、影响因素等特征。
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