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作 者:陈晨[1] 刘鹏辉 王子潇 CHEN Chen;LIU Peng-hui;WANG Zi-xiao(Business School,Hohai University,Changzhou 213022,Jiangsu,China;College of Mechanical and Electrical Engineering,Hohai University,Changzhou 213022,Jiangsu,China;College of Internet of Things Engineering,Hohai University,Changzhou 213022,Jiangsu,China)
机构地区:[1]河海大学商学院,江苏常州213022 [2]河海大学机电工程学院,江苏常州213022 [3]河海大学物联网工程学院,江苏常州213022
出 处:《湖北农业科学》2023年第7期24-31,共8页Hubei Agricultural Sciences
基 金:国家自然科学基金项目(41501126)。
摘 要:构建基于方向距离函数的水资源系统混合网络DEA模型,测算中国城镇水资源利用整体效率、用水阶段效率和污水处理阶段效率,并通过Moran’s I指数研究其空间格局。结果表明,2008—2017年,中国城镇水资源利用整体效率偏低,不同地区间的水资源利用效率差异明显;用水阶段效率普遍高于污水处理阶段效率,二者均表现出上升趋势;城镇水资源利用整体效率存在较显著的空间相关性,空间集聚现象呈先下降后增强的趋势。The DEA model of the hybrid network structure of the water resources system based on the direction distance function was constructed to measure the overall efficiency,water use stage and sewage treatment stage efficiency of urban water resource utilization in China,and the spatial pattern was studied by Moran’s I index.The results showed that,from 2008 to 2017,the overall efficiency of urban water resources utilization was low and the level of water resources utilization efficiency varied significantly between regions.The efficiency of the water use stage was generally higher than that of the sewage treatment stage,both of them showed an upward trend.There was a significant spatial correlation between the overall efficiency of urban water resource utilization,and the phenomenon of spatial agglomeration presented a trend of first declining and then increasing.
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