兼顾公平与效率视角下的区域农业初始水权分配研究——以湖南益阳市为例

A Study on Regional Initial Water Rights Allocation in Agriculture Under the Perspective of Equity and Efficiency:The Case of Yiyang City,Hunan Province

针对农业用水量在区域总用水量中占比较大且用水效率有待提高这一问题,从兼顾公平与效率视角下构建区域农业初始水权分配模型,以最小化公平性满意度差异为目标,同时结合农业用水效率指标作为核心约束条件,以益阳市为例,运用Mtalab fmincon函数对模型进行求解,实现对益阳市2025年各行政区的农业初始水权分配。结果表明基于兼顾公平与效率模型的农业初始水权分配较现状分配总量和公平性满意度差异都有所减小,分配结果更公平高效。研究成果可为其他区域分配农业初始水权提供借鉴和参考。

Aiming at the problem that agricultural water consumption accounts for a large proportion of the total regional water consumption and the water use efficiency needs to be improved,this article constructs a regional agricultural initial water rights allocation model from the perspective of balancing equity and efficiency.The objective is to minimize the difference in equity and satisfaction,and at the same time combining the agricultural water use efficiency indicators as the core constraints.Taking Yiyang city as an example,the model is solved by using the Mtalab fmincon function to achieve the initial water right allocation for each administrative district in 2025.The results show that the initial agricultural water rights allocation based on the model of balancing equity and efficiency reduces the total amount and the difference in equity satisfaction compared with the status quo allocation,and the allocation results are more equitable and efficient.The results of the study can provide a reference for other regions in allocating initial agricultural water rights.