太湖梅梁湾水污染及蓝藻分析计算  

Analysis and calculation of water pollution and blue algae in Meiliang Bay of Taihu Lake

作　　者：陈鸣[1,2] 陆卫鲜[1,2] 郁建桥[3] 徐亮[3] 

机构地区：[1]南京水利科学研究院水文水资源研究所,江苏南京210029 [2]水文水资源与水利工程科学国家重点实验室,江苏南京210098 [3]江苏省环境监测中心,江苏南京210036

出　　处：《河海大学学报（自然科学版）》2010年第6期634-638,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07528-005-02);南京水利科学研究院科研业务专项(Y109001);水利部科技推广计划重点项目(TG1006)

摘　　要：构建了太湖梅梁湾污染及蓝藻扩散、运移变化计算模型,模型主要由4个部分构成:(a)基于GIS构建的计算网络;(b)基于水动力学基础的水质扩散运移模型;(c)水质进程模型,包括衰减模型和溶解氧模型;(d)蓝藻浓度计算模型.实例计算结果表明:用该模型模拟梅梁湾总磷、总氮、溶解氧和蓝藻质量浓度4项污染指标的扩散、运移变化,精度较高,其确定性系数分别为0.70,0.74,0.88和0.86.A model was established to simulate the transport and diffusion of water pollution and blue algae in Meiliang Bay of Taihu Lake.It included 4 modules：（1）GIS-based calculation network; （2）hydrodynamics-based diffusion and transport of water quality; （3）water quality process model,including decaying pollutant and dissolve oxygen; （4）concentration model of blue algae.The calculated results of cases show that the proposed model has high precision to simulate the transport and diffusion of total nitrogen,total phosphorus,dissolved oxygen and blue algae in Meiliang Bay of Taihu Lake,and their deterministic coefficients are 0.70,0.74,0.88 and 0.86,respectively.

关 键 词：水污染 蓝藻 计算模型 梅梁湾 太湖 

分 类 号：X524[环境科学与工程—环境工程]