海南近期用水结构变化规律分析

用水结构反映了一定时期地区经济社会发展对水资源的需求差异,选取海南省2000~2016年用水数据,运用信息熵理论研究分析海南岛屿用水结构时空变化规律。研究结果表明:(1)近17年以来,海南省用水结构信息熵总体呈上升趋势,用水系统的稳定性和均衡性增强;(2)用水结构空间演变呈现显著的区域性差异,信息熵值从中部山区向四周沿海地区逐渐增大,用水结构系统的稳定性从中部山区往四周,特别是向南北两端增强,与其独特的岛屿地形地貌、水资源禀赋及经济社会发展特点基本吻合。

An Analysis of the Change Law of Water Utilization Structure in Hainan

The structure of water use reflects the demand difference of water resources for regional economic and social development in a certain period.Based on the data of water use in Hainan Province from 2000 to 2016,this paper uses the theory of information entropy to analyze the spatiotemporal evolution characteristics of island water utilization structure in Hainan.The results show that,in the past 17 years,the information entropy of water utilization structure in Hainan Province is on the rise,and the stability and equilibrium of water use system are enhanced.The spatial evolution of water utilization structure shows significant regional differences.The information entropy value gradually increases from the central mountain areas to the surrounding coastal areas.The stability of water use structure system increases from the central mountain areas to the surrounding areas,especially to the north and south end,which is basically consistent with the unique topography,water resource endowment and economic and social development characteristics of Hainan Island.