期刊论文

Correlation analysis of agricultural non-point source pollution and water environment change in Erhai Lake watershed

中文

华中师范大学学报(自然科学版)

1000-1190

2017

51

2

215-223

10.19603/j.cnki.1000-1190.2017.02.015

国家水体污染控制与治理科技重大专项项目（2013ZX07105-005-04）；

本校为第一机构

随着点源污染得到有效控制与治理,农业面源污染已成为湖泊水环境污染的主要来源.该文利用等标污染负荷法和相关统计、调查数据,计算了2006年～2014年洱海流域农业面源污染负荷,在此基础上,运用灰色关联分析方法,测度了农业面源污染与洱海水环境变化的关联性.研究揭示:1)2014年流域农业污染的总排放量为8 303.63 t,折算成等标排放量COD、TN和TP分别为325.85、1371.29和420.10m3/a,表明TN为污染超标的主要影响因子;2)畜禽养殖关联度为0.71,种植业关联度为0.63,表明农业发展整体对洱海水环境影响较大,其中,大蒜、水稻、牛、猪的关联度分别为0.70、0.69、0.74、0.74,贡献率分别为9.35％、10.90％、3...

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 rese...