Optimization of water source distribution and feasibility analysis of Baimaosha Reservoir construction under influences of saltwater intrusion in the Yangtze River Estuary
In order to improve the amount and quality of raw water supply in Shanghai in the future,and cope with the risk of sudden saltwater intrusion and water pollution,the necessity of water source layout optimization in the Yangtze Estuary is demonstrated based on the analysis of the current situation of water sources in the Yangtze Estuary and the situation of saltwater intrusion.In combination with saltwater intrusion monitoring data and inversion results,the scheme of building a new reservoir in Baimaosha and the optimal operation scheme of the raw water system are proposed,and impacts of the reservoir construction on river regime change,flood discharge,navigation,fishery resources,and ecological environment are discussed.The results show that building a new reservoir in Baimaosha is a relatively feasible scheme to optimize water source layout in the Yangtze River Estuary in Shanghai,which can also increase the water supply scale and move the water intake upstream.Located inside the Baimaosha Regulation Project,the safety and stability of the dike of the Baimaosha Reservoir to be constructed can be ensured,and the construction of the Baimaosha Reservoir will not affect flood discharge and navigation,and has little impact on river regime change,fishery resources,and ecological environment.The water intake arranged in the slightly curved channel on the south side of the reservoir can avoid the impact of sedimentation on the water intake and the impact of saltwater intrusion from the North Branch.After the water delivery pipe reaches Chongming Island,it will be built with the raw water double line there,which can enhance the water supply safety of Chongming Island,and also interconnect with the raw water systems of the existing water sources in the Yangtze River Estuary and the Huangpu River,realizing the goal of"dual source water supply and one network dispatching"of Shanghai raw water system.
saltwater intrusionwater supply worksraw water systemwater sourceYangtze River EstuaryBaimaosha
国家科技期刊平台
NSTL
万方数据
维普
