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Discussion on the Function and Scale of Dasha Regulating and Storing Reservoir in Zhoushan Continental Diversion Project

The construction of Zhoushan Archipelago New Area in Zhejiang Province is strategically important, however, an insufficient supply of water resources in Zhoushan has become one of the main factors affecting its economic and socially sustainable development. Zhoushan Continental Diversion Project provides a reliable guarantee for the construction and development of the Zhoushan islands. Based on the project water diversion and local water resources conditions, this paper analyzes the necessity of setting up Regulating and Storing Reservoir and discusses the rationality of the reservoir scale in terms of water supply guarantee rate, emergency water sources, and development costs.