磁湖水体营养特征调查与分析

通过调查磁湖沿岸污染物排放情况及水质监测,对水体营养特征进行分析,为以后制定磁湖的治理措施提供依据。结果表明:水体氮污染严重,已达到富营养化状态;有机废水排放和近岸农田径流造成水体进一步酸化;近岸植被有效降低了近岸水体的TP水平,但不能遏制水体酸化;湖心区出现底泥中污染物释放而使水质下降的现象。磁湖后期治理的重点应放在控制水体酸化问题上。

Survey and Analysis on Water Body Eutrophication of Cihu Lake

Through surveying pollutants discharged along Cihu lake and monitoring the water quality,nutrition characters of Cihu lake were analyzed,which provided the basis for the later treatment of Cihu lake.The result showed that nitrogen pollution level was so serious that it reached eutrophication.The discharge of organic wastewater and farmland runoff will cause further acidification of water body.Vegetations along banks may reduce TP level efficiently,but they can not suppress the acidification of water body.In addition,the pollutants discharged from the sludge at the bottom can lower the water quality.Therefore,the focus of later treatment of Cihu Lake should be set on the control of acidification of the water body.