城市浅水湖泊水质模拟研究_以昆承湖为例.pdfVIP

25 4 Vol.25 No.4 2009 7 WATER RESOURCES PROTECTION Jul. 2009 1,2 1, 2 1, 2 , , ( 1. , 210098; 2., 210098) : 采用环境流体动力学模型(EFDC) 对苏州市浅水湖泊昆承湖丰水期和枯水期水质进行模拟结果 明, 昆承湖COD 高浓度带位于湖西部, 东南部较低,主要受张家港河和莫城河2 条入湖河道水体影响湖西 + 南部TP 浓度较高; 莫城河河道是导致昆承湖TP 浓度较高的主要污染源丰水期,NH N 高浓度区分布在 4 + + 湖西南部,莫城河河道水体对昆承湖NH N 浓度影响较大; 枯水期, 全湖西北部NH N 浓度较高,主要受张 4 4 家港河河道水体影响研究结果对昆承湖的水环境管理和环境综合整治有 一定的参考价值 :EFDC; 昆承湖; 水质评价 :X824 :A :2009 Simulation of water quality of shallow lakes in cities: the example of Kuncheng Lake CAO Jingjing1, 2, L Ruijie1, 2, Q N Yi1, 2 ( 1. Key L aboratory of Coastal Disaster and Dfe ence of Ministry of Education, H ohai Univ ers ity , Nanj ing 21098, China 2. L aboratory fo Marine Environment , H ohai University , Nanj ing 210098, China) Abstract: Thewater quality of the shallow Kuncheng Lake in Suzhou during the high water and low water periods was si ulatedwith a nu erical odel called EFDC (Environ ental Fluid Dyna ic Co putation) . Theresults showed ahigh concentration zone of COD located in thewestern part of Kuncheng Lake, whilethe concentration of CODwas low in the southeast. The concentration of COD was ainly affected by the influents fro Zhangjiagang Strea and Mochenghe Strea . TheTP concentration was high in the southwest part of Kuncheng Lake and the ain pollution source was the + MochengheStrea . The ain pollutants causing the high concentration zone of NH N in the southwest of the lake