华中师范大学学报（自然科学版）2017，Vol.51Issue(2)：215-223,9.
洱海流域农业面源污染与水环境变化的关联分析
Correlation analysis of agricultural non-point source pollution and water environment change in Erhai Lake watershed
摘要
Abstract
Along with the effective control of point source pollution,agricultural nonpoint source pollution has become the main pollution source of lake water environment.Based on the equivalent standard pollution load method and the relevant survey data,this paper calculates discharges of agricultural non-point source pollution in the Erhai Lake watershed during 2006～2014,and then,using the grey correlation analysis method,correlations are studied between agricultural non-point source pollution and water environment in the Erhai Lake watershed.The research results show that:firstly,the total discharges of agricultural non-point source pollution are 8303.63 t,amount to equivalent standard discharges of COD,TN and TP as 325.85,1371.29,and 420.10 m3/ a,respectively,which indicates that TN is the main influence factor for pollution;secondly,the correlation between livestock and water environment is 0.71,and the correlation between crop farming and water environment is 0.63,which show that the influence of agricultural development is relatively significant for water environment.In detail,the correlations of garlic,rice,cattle and pig are 0.70,0.69,0.74,0.69,and the contribution rates are 10.90％,9.35％,35.09％,and 13.19％,respectively;thirdly,from the perspective of spatial distribution,the north area are key pollution source areas,such as Sanying town,Yousuo town,ZiBi lake town,besides,the variance of nonpoint source pollution was non-balanced.According to the above data,the future agricultural development of Erhai Lake watershed is discussed in view of water environment protection strategy.关键词
农业面源污染/水环境/等标污染负荷/灰色关联分析/洱海流域Key words
agricultural non-point source pollution/water environment/equivalent standard pollution load/grey correlation analysis/the Erhai Lake watershed分类
资源环境引用本文复制引用
卢中辉,余斌,张辉,杨振..洱海流域农业面源污染与水环境变化的关联分析[J].华中师范大学学报（自然科学版）,2017,51(2):215-223,9.基金项目
国家水体污染控制与治理科技重大专项项目(2013ZX07105-005-04). （2013ZX07105-005-04）
