摘要
本文在苏南太湖地区５个县７个试验田，对农业非点源有机物污染进行封闭集水区农田径流研究。结果表明：输入农田的污染量以污染比负荷量２年平均值表示，水田为－２４．４５～１０．９５ｋｇ／ｈａ·ａ，旱地为－１１．７０～１．６５ｋｇ／ｈａ·ａ，说明农田排水中有机物质对水系水质污染很小。
Seven experimental fields from 5 counties inTaihu Lake region were selected to study the effect of agricuI-tural non-point source organic pollution on agricuItural runoffin isolated catchment. The resuIts showed that the output oforganic matter to water body through drainage water was lessthan input to agricuItural soils through irrigation water. Theapparent specific load of organic matter in agricuItural soilswas-24.45～10.95kg/ha·a for paddy soil and-11.70～1. 65kg/ha· a for upland soil. The resuIts indicated that theorganic pollution to water body caused by drainage of agricul-tural soil was minor important.
出处
《农村生态环境》
CSCD
1994年第2期41-44,共4页
Rural Eco-Environment
基金
国家"七五"科技攻关内容
