关键词: 多目标优化配置;水资源优化配置;NSGA-Ⅲ算法;泗县;安徽省;

Abstract: The optimal allocation and efficient utilization of limited water resources is still a research hotspot.This paper took Sixian County as a typical research area, and established a multi-objective optimal allocation model of water resources in Sixian County with the objective functions of maximizing economic benefits, minimizing social water shortage and minimizing pollutant emissions.NSGA-Ⅲ algorithm was used to generate the Pareto optimal solution set.Four water resources allocation schemes with different emphasis were selected, namely, scheme 1 focused on economic benefits, scheme 2 focused on social benefits, scheme 3 focused on ecological and environmental benefits, and scheme 4 focused on comprehensive benefits.The four schemes were used to coordinate the relationship among water resources, economic society and ecological environment, so as to achieve the goal of maximizing comprehensive benefits.The results showed that the scheme 4 was the optimal scheme with total water distribution of 226.63 million m3,the economic benefit of 32.5 billion yuan, the surplus water of 1.01 million m3,and the pollutant emission of 1969 t.The results can provide a scientific basis for the rational allocation of water resources in Sixian County.

Key words: multi-objective optimal allocation; optimal allocation of water resources; NSGA-Ⅲ algorithm; Sixian County; Anhui Province;