Study on optimal allocation of inter-basin water transfer project in Jiaodong area
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Abstract:
The shortage of water resources in Jiaodong area is becoming increasingly serious with the expansion of urban population and the rapid development of industrial and agricultural production and economy in recent years. The four cities with serious water shortage in Jiaodong area ( Weifang, Qingdao, Yantai, and Weihai) were taken as the study areas. Inter-basin water transfer was implemented based on the East Route of South-to-North Water Transfer Project and the project of water diversion from Yellow River to Qingdao so as to alleviate the contradiction between supply and demand. The years of 2020 and 2025 were taken as the planning years. According to the water balance analysis, we built a multi-water source, multi-objective optimal allocation model that aimed for minimum water shortage and maximum benefits of the water transfer projects, and we determined the optimal allocation scheme for different water sources ( Yellow River, Yellow River and Yangtze River) . Results showed that when water was transferred from Yellow River a lone, the water shortage in the water-receiving area would decrease by 14%-83% and 10%-31% respectively in different planning years; when water was transferred from both Yellow River and Yangtze River, the water shortage in the water-receiving area would decrease by 28%-81% and 19%-53% respectively in different planning years. The optimal allocation scheme can effectively alleviate the contradiction between water supply and demand and alleviate the shortage of water resources in Jiaodong area, and thus lay the foundation for sustainable development in Jiaodong area.
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