阳澄湖环湖河道总磷通量变化分析

Analysis on the Change of Total Phosphorus Flux in Yangcheng Lake Surrounded Rivers

通过对阳澄湖周边进出湖河道水量及入湖总磷通量趋势的分析,识别出了总磷的主要来源区域和各主要河道总磷通量比重,结果表明:在不考虑七浦塘引水的情况下,阳澄湖入湖总磷通量主要来自于西线入湖河道,其中3条河道占了西线入湖总磷通量91.3%,是阳澄湖西线总磷污染的主要来源。对此,提出了一些针对性的防治和改善措施。

Through the analysis of the flow and quality of surrounded river of Yangcheng Lake,the main sources of total phosphorus and the proportion of total phosphorus flux in each main channel are identified.And some targeted prevention and improvement measures are proposed.The results show that,without considering the water diversion from Qiputang River,the total phosphorus flux of Yangcheng Lake mainly comes from the west channel,among which three channels account for 91.3% of the total phosphorus fluxinto the west route,which is the main sources of the total phosphorus pollution ofthe west channel.