大凌河朝阳段大型底栖无脊椎动物监测及BI指数评价

摘要

Through monitoring 9 benthic animals samples of 5 sites in Chaoyang section of Daling River, 59 kinds of benthic animals were detected. BI index water quality assessment showed, Daling Henan Bridge and upper reaches were clean, and urban segment downstreams were between light pollution and moderate pollution.%通过对大凌河朝阳段5个采样点9个样本的底栖动物监测分析,检出底栖动物59种,采用BI指数进行水质评价。调查结果表明,大凌河南大桥及上游河段为清洁,市区段下游为轻污染至中污染。