城市土地利用效率时空演化及其与经济增长脱钩关系研究——以长三角城市群为例  

Spatiotemporal Evolution of Urban Land Use Efficiency and Its Decoupling Relationship with Economic Growth:A Case Study of Yangtze River Delta Urban Agglomeration

作　　者：陈德静 王晓青 濮励杰[1,2,3] 张瑞 丹旸 CHEN De-jing;WANG Xiao-qing;PU Li-jie;ZHANG Rui;DAN Yang(School of Geography and Ocean Science,Nanjing University,Nanjing 210023,China;Key Laboratory of Coastal Zone Exploitation and Protection,Ministry of Natural Resources,Nanjing 210023,China;School of Environmental Engineering,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京大学地理与海洋科学学院,江苏南京210023 [2]自然资源部海岸带开发与保护重点实验室,江苏南京210023 [3]南京工程学院环境工程学院,江苏南京211167

出　　处：《长江流域资源与环境》2023年第10期2018-2031,共14页Resources and Environment in the Yangtze Basin

基　　金：国家自然科学基金项目(42171245,41871083);江苏省海洋科技创新项目(JSZRHYKJ202212)。

摘　　要：提高城市土地利用效率对实现资源优化配置和促进可持续发展具有重要意义。引入碳排放等非期望产出指标,通过构建超效率SBM-Undesirable模型测算了2010~2019年长三角城市群41个城市的土地利用效率(ULUE),并对其时空演变特征、效率演变及其与经济发展之间的脱钩关系展开分析。结果表明:(1)长三角城市土地利用效率总体水平较低(0.71),2010~2019年呈现出“增长-下降-再增长”的演化趋势,区域差异先增大后减小;(2)长三角地区城市土地利用效率存在两头高-中间低、西高东低的空间格局特征,局部集聚水平不高;(3)长三角地区土地利用效率提升主要由追赶效率和技术进步共同促进;(4)2010~2019年长三角城市城市土地利用效率与经济增长之间均主要处于弱脱钩状态,脱钩状态良好。Improving urban land use efficiency(ULUE)is crucial for achieving the optimal allocation of resources and promoting sustainable development.In this study,a super-efficient SBM-Undesirable model was established,based on the unexpected outputs such as carbon emission to assess the urban land use efficiency of 41 cities in the Yangtze River Delta urban agglomeration from 2010 to 2019.The spatial-temporal evolution characteristics,efficiency evolution and the decoupling relationship with economic development were explored.The results showed that:(1)Overall,the average ULUE in the Yangtze River Delta region was 0.71,indicating a low efficiency level.The ULUE showed a temporal pattern of increasing,then decreasing and finally increasing.The spatial deviations in ULUE demonstrated an increase first,followed by a decrease.(2)The spatial distribution of ULUE varied markedly,characterized by the lowest values in the center,and higher in the west,and lower in the east.Low degree of local agglomeration was also found.(3)Strategies to improve land use efficiency in the Yangtze River Delta region were mainly facilitated by a combination of catch-up efficiency(EC)and technological progress(TC).(4)From 2010 to 2019,the urban land use efficiency and economic growth in the Yangtze River Delta cities were dominated by a weak decoupling state,and the decoupling state was relatively satisfactory.

关 键 词：土地利用效率 碳排放 超效率SBM模型 脱钩关系 长三角城市群 

分 类 号：F301.2[经济管理—产业经济]