城市土地集约利用综合效益演化研究——以湖北省咸宁市为例

Study on the Dynamic Comprehensive Efficiency of Urban Intensive Land Use——A Case Study of Xianning City,Hubei Province

开展城市土地利用效益评价有助于衡量城市土地集约利用水平,实现城市土地的高效协调利用。从社会效益、经济效益、生态效益和环境效益4个方面,构建了城市土地集约利用效益评价体系,采用熵值法确定了指标权重,对咸宁市1999—2008年的城市土地集约利用效益及协调度进行了综合评价。结果表明:(1)咸宁市城市土地集约利用社会效益、经济效益和生态效益明显增加,环境效益快速下降,综合效益稳步上升。(2)城市土地集约利用效益协调度除最初两年处于极不协调和不协调状态外,其他时间均处于基本协调或比较协调状态。鉴于此,提出了加大产业结构调整、提高城市土地集约利用程度和加强生态环境保护等相应的对策建议。

Urban intensive land use efficiency is an important index to measure the level of urban land use.Evaluation indicators for urban intensive land use benefits from the aspects of society,economy,ecology and environment was established.The method of entropy value was used to determine the weight of each indicator.A case study in Xianning was carried out to analyze urban intensive land efficiency and coordination degree from 1999 to 2008.The results showed：（1） the urban intensive land use efficiency of society,economy and ecology increased obviously,thus,the efficiency of environment decreased fast,and then the comprehensive efficiency rose steadily;（2） in general,the coordination degree of urban intensive land use efficiency was at basic coordination stage or more coordination stage,except that the first two years was at incoordination stage and very incoordination stage.Finally,some additional approaches to improve urban intensive land use efficiency were presented.