辽宁大伙房水库水质动态变化研究

对大伙房水库水质进行了动态研究。结果表明:入库和库区水体总氮、总磷含量多年平均分别超过国家地表水入库Ⅲ类和库区Ⅱ类水质标准。库区其他17项水化指标符合国家地表水库区Ⅱ类标准。大伙房水库水体只受到轻度污染,水质等级为近Ⅱ级,属浮游植物响应型中营养水体。

The water quality of Dahuofang reservoir has been systematically studied. The results showed that the average annual TN and TP of the reservoir inflow and the reservoir body all exceeded the national standard （Ⅲ） of reservoir inflow and national standard （Ⅱ） of water body. While the other 17 chemical indexes of water body in reservoir could meet the national standard （Ⅱ） of water body. It was considered that the water body of Dahuofang reservoir was light polluted. The water quality was in grade Ⅱ approximately. It was at middle level of eutrophication affected by phytoplankton.