【作者】 王婷婷； 唐莉华；

【Author】 WANG Ting-ting,TANG Li-hua(State Key Laboratory of Hydroscience and Engineering,Department of Hydraulic Engineering,Tsinghua University,Beijing 100084,China)

【机构】 清华大学水利系水沙科学与水利工程重点实验室；

【摘要】 洞庭湖作为我国第二大淡水湖,目前存在着水体富营养化等污染问题,非点源污染已成为其主要污染源。本研究在洞庭湖四口河系地区建立了水环境模型,包括分布式污染负荷估算模型以及基于MIKE 11软件的河网水质模型,在利用实测水质数据进行了模型率定和验证之后,估算了洞庭湖平原河网地区的氮磷污染负荷量,并对河道内水质演变进行了模拟和评价。研究结果可为洞庭湖水环境污染的治理与调控提供参考。更多还原

【Abstract】 Dongting Lake,the second largest freshwater lake in China,appears a trend of deterioration of water quality and eutrophication problem,and non-point source pollution has become a major source of water environment pollution.In this paper,a water environmental model is established in the rivernet area of Dongting Lake,which consists of a distributed pollution model in the polder region and a water quality model based on MIKE11 in the river network.First,the parameters in the model are calibrated based on the comparisons between the modeling results and the measured data.Then,the load and discharge amounts of nitrogen and phosphorus pollution in the polder region are estimated,and the water quality conditions in the river network are simulated and evaluated.These research results can be an important reference to the future water environment protection and pollution control of Dongting Lake.更多还原