变化环境下长江流域滨海城市供水安全与适应性对策OA北大核心CSTPCD

Impacts of global climate change and the high-intensity human activities have led to changes in the water cycle in the Yangtze River basin and the contradiction between the water supply and water demand in the river basin and its associated urban agglomerations.This issue is especially highlighted in the water supply security of coastal cities,such as the Shanghai is in the lower reaches of Yangtze River,and has become one of the important issues of great concern for the protection of the Yangtze River.This study examines how changes in the environment affect the risk of water supply security in Shanghai.It specifically focuses on the Qingcaosha reservoir system.This text analyzes the impact of extreme droughts on current and future urban water supplies in Shanghai.It discusses the pressure on the water supply due to the interaction between the fresh water of the Yangtze River and the salty tides in the estuary.It also highlights the challenges faced in managing Shanghai's urban water supply,including the integrated use of engineering and non-engineering measures such as early warning,forecasting and scheduling.To improve water supply safety and security,it is recommended to implement systematic thinking and strategic planning,upgrade the level of systematic intelligence and smart management for urban water supply safety,and improve the management system for water supply safety and security.