摘要
以太湖流域苏浙沪跨界断面2009年～2014年的实测水文数据和COD、氨氮、总磷3项水质指标的实测数据为基础，分析了2009年～2014年苏浙沪跨界断面的水量和水流流向，进行了苏浙、苏沪、浙沪跨界污染物通量统计计算和分析。2009年～2014年，苏浙沪跨界断面呈现出一定比例的滞流，约占全年总流量的10％～22％。苏浙跨界断面总体往返水量大致平衡，同期苏沪和浙沪跨界净流向上海。苏浙沪跨界断面江苏到浙江的COD、氨氮、TP年通量与浙江到江苏的年通量基本保持一致。江苏到上海方向COD、氨氮年通量在2013年达到最大，TP在2012年达到最大。浙江到上海方向COD、氨氮、TP年通量呈先增大后减小趋势，COD年通量在2013年达到最大，氨氮、TP年通量均在2012年达到最大。
Based on monitoring data of hydrology and water quality indexes of COD, NH3-N, TP from 2009 to 2014 on Su-Zhe- Hu transboundary-section in Taihu basin, this paper analyzed water volume and water flow direction of Su-Zhe-Hu transboundary- section, and did statistical calculation of pollutant fluxes of Su-Zhe, Su-Hu, Zhe-Hu transboundary-section from 2009 to 2014. The results showed that viscous flow was about 10% - 22% proportion of total annual flow in Su-Zhe-Hu transboundary-seetion. The water flow back and forth the Su-Zhe transboundary-section maintains almost balance. On Su-Hu and Zhe-Hu transbotmdary-section, the water volmr~ was almost flowing to Shanghai. On Su-Zhe-Hu transboundary-section the annual pollutant flux of COD, NH3-N and TP to and from Su-Zhe stayed the same value generally. The annual pollutant flux of COD, NH3-N from Jiangsu to Shanghai reached the maximum in 2013 and which of TP reached the maximum in 2012. The annual pollutant flux of COD, NH3-N and TP from Zhejiang to Shanghai presented the tendency that increased first and then decreased. Annual pollutant flux of COD reached maximum in 2013 and annual pollutant flux of NH3-N, TP reached maximum in 2012.
出处
《四川环境》
2016年第1期42-49,共8页
Sichuan Environment
基金
“十二五”国家水体污染控制与治理科技重大专项(2012ZX07506007)
关键词
苏浙沪跨界
污染物通量
太湖流域
Su-Zhe-Hu transboundary-section
pollutant flux
Taihu basin
