Analysis of Spatial-Temporal Evolution and Obstacle Factor of the Water Resources Utilization Benefit in Henan Province
In order to promote the sustainable utilization of water resources,this paper used the comprehensive index method to calculate the water resources utilization benefits in Henan Province,analyzed the evolution trend of the center of gravity by using ArcGIS 10.8 software,and analyzed the obstacle factors by using the obstacle model.The results show that:a)The comprehensive utilization benefits of water re-sources shows a fluctuating upward trend in Henan Province,among them,Anyang has the largest increase in ecological benefits,Shangqiu has the largest decrease,Shangqiu has the largest increase in economic benefits,Pingdingshan has the smallest,Puyang has the largest in-crease in social benefits,and Hebi has the largest decrease.b)The gravity center of water resources utilization benefits in Henan Province is distributed in Zhengzhou and Xuchang cities,showing a trend of migration towards the northeast.Among them,the gravity center of ecologi-cal benefits,economic benefits and social benefits shows a trend of migration to the southeast,east and northeast respectively.c)There are significant regional differences in the main obstacles to the utilization efficiency of water resources in Henan Province.Among them,the sew-age treatment rate,water consumption per 10 000 yuan of industrial added value,water consumption per 100 million yuan of agricultural out-put value,density of water supply pipelines in built-up areas,and water penetration rate are the top obstacles in Hebi,Luohe,and Zhoukou prefecture level cities,Luoyang and Pingdingshan prefecture level cities,Anyang,Xinxiang,Jiaozuo,Puyang,and Jiyuan prefecture level cities,Xuchang and Sanmenxia prefecture level cities,Nanyang,Shangqiu,and Zhumadian prefecture level cities,respectively;The green coverage rate of built-up areas,water consumption per 10 000 yuan of GDP,and per capita daily water consumption are the top obstacles for Kaifeng,Xinyang,and Zhengzhou,respectively.Based on the research results,some suggestions were proposed to improve the water re-source utilization benefits in Henan Province.
water resources utilizationspatial-temporal evolutioncomprehensive index methodobstacle degree modelHenan Province
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