【摘要】 有效截留和控制流域外源性营养物质的输入，去除或转化湖内营养物质的积累，是湖（库）水体富营养化控制的基点。本文提出的“外源性营养物质输入控制方案”，通过城市环保基础设施和生态农业体系的建设，能有效切断营养物质进入湖（库）水体的途径，对于控制水体富营养化具有长远意义。更多还原

【Abstract】 It is a basic viewpoint to transform or get rid of the accumulation of nutrients in lake (or reservoir) by effectively retenting and controlling the nutrients from outer rioer basin. Thepaper states a new procedure of controlling the input of outer nutrients, with metropolitan environmental protection facilties used and agricultural ecosystem constructed,which can effectively cut off the way by which the nutrients enter into water body. That may be significant to control the eutrophication in water body.更多还原