摘要
随着点源污染排放得到较好的控制和治理,非点源污染成为水体污染的一个重要原因。非点源污染是相对点源污染而言的,它包括农业非点源污染和城市非点源污染,而我们通常所说的非点源污染指的是农业非点源污染。由于其分散性、隐蔽性、随机性、不确定性、广泛性、滞后性、模糊性和不易监测性造成了研究和控制的难度大。文中介绍了农业非点源污染的定义、来源、特征、危害,具体阐述了国内外农业非点源污染的研究进展和防治措施,并对农业非点源污染的研究进行了展望。
As point source pollution discharge were controled and treatmented got better,non-point source pollution becomes an important reason of water pollution.Non-point source pollution is relatively speaking point about source pollution,it includes agricultural non-point source pollution and urban nonpoint source pollution,and we normally refers to the agricultural non-point source pollution.Because of its dispersion,concealment,randomicity,uncertainty,universality,hysteresis,fuzziness and not easy monitoring caused the difficulty of study and control.This paper introduces the definition of agricultural non-point source pollution and sources,characteristics,harm,and,this paper explains the research progress and control measures of agricultural non-point source pollution at home and abroad,and,agricultural non-point source pollution study is forecasted.
出处
《辽宁农业科学》
2011年第6期47-52,共6页
Liaoning Agricultural Sciences
关键词
农业非点源污染
最佳管理措施
保护性耕作
非点源污染负荷
Agricultural non-point source pollution
Best Management
Practices conservation tillage
Pollution load of nonpoint source
