基于综合赋权法的岷江水量分配研究

Study on Water Allocation of Minjiang River Based on Comprehensive Weighting Method

为提升岷江水资源分配效益及合理性,从水资源管理及考核成效角度入手,建立包括取用水监管率、控制断面水质达标率和下泄流量预警等指标在内的水量分配指标体系,采用主客观结合的综合赋权法定量计算各取水城市取水量,并分析各指标的重要性。结果表明,取水量分配结果与实际分水结果在排序上总体一致,岷江中游成都、眉山等城市对水资源需求量较大,可为岷江水资源调度与水权交易提供依据;取用水监管率与控制断面水质达标率在6个新指标中权重较大,对推动构建新的水量分配指标体系提供了一种思路。分水结果兼顾了河流健康与水环境要求,同时将水资源管理效益与分水直接挂钩,可为实际分水提供参考,并促使各地区有侧重地持续做好水资源管理及考核相关工作。

In order to enhance the efficiency and rationality of water resources allocation in Minjiang River,a water allocation index system including the monitoring rate of water intake,the rate of water quality of control sections meeting the standards and the early warning of discharge was established from the perspective of water resources management and assessment effectiveness.And then the quantitative calculation of the water intake of each water-taking city and the importance of each index were carried out by the comprehensive weighting method which combines the subjective and objective factors.The results show that the results of water intake distribution are consistent with the actual of water diversion,and the demand of water resources in Chengdu,Meishan and other cities in the middle reaches of Minjiang River is large,which can provide a basis for water resources regulation and water rights trading in Minjiang River.The supervision rate of water intake and the rate of water quality of control section are of great weight among the 6 new indexes,which provides an idea for constructing a new index system of water allocation.The results of water diversion take into account both the health of rivers and the requirements of water environment,and try to directly link the benefits of water resources management with water diversion,which can provide reference for actual water diversion,and urges each area to have the emphasis to continue to do well the water resources management and the appraisal related work.