摘要
城镇化作为推动我国经济发展和社会进步的重要“引擎”,在提升经济效益的同时,与生态文明建设相对滞后的矛盾突显,生态效率的研究对于协调城镇化发展与生态文明建设的意义重大。采用超效率DEA模型测算我国2004~2018年285个地级及以上城市的生态效率并分析其时空演变特征,并利用动态空间面板杜宾模型实证分析城镇化对城市生态效率的空间溢出效应及区域异质性。结果显示:中国各城市生态效率呈波动上升的特征,存在明显的区域差异性、空间集聚性以及累积效应,区域间差距具有逐渐缩小的趋势;城镇化与生态效率之间存在显著的倒“N”型曲线关系;城镇化对生态效率的空间溢出效应呈现明显的区域异质性特征;城镇化对产业结构优化程度较高的城市生态效率的作用较小,技术水平的提升能够强化城镇化对生态效率的改善作用,并且这种改善作用受到本区域与邻近城市技术水平的双重“加持”效用。
Urbanization is an important "engine" to promote cities’ economic development and social progress.At the same time,we must also be aware that there is an inconsistent contradiction between economic development and the promotion of ecological civilization.The study of ecological efficiency plays an important role in coordinating the development of urbanization and the promotion of ecological civilization.In this paper,superefficiency DEA model is used to measure the eco-efficiency of 285 cities of China from 2004 to 2018.Based on the analysis of the temporal and spatial evolution characteristics of eco-efficiency,this paper uses the Dubin model of dynamic spatial panel to empirically analyze the spatial spillover effects and regional differences of urbanization on urban eco-efficiency.The results show that the ecological efficiency of Chinese cities is characterized by volatile increase,showing regional differences,spatial agglomeration and cumulative effects.Moreover,although urban ecological efficiency shows obvious regional differences,the gap between regions is a gradually shrinking.Secondly,there is a significant inverted "N" curve interconnectedness between urbanization and ecological efficiency.Thirdly,the spatial spillover effects of urbanization on ecological efficiency show obvious regional heterogeneity.Finally,urbanization has little effect on the eco-efficiency of cities with a high degree of industrial structure optimization,though.It seems clear that the improvement of technical level can strengthen the effect of urbanization on ecological efficiency.Moreover,this improvement effect comes from the double "blessed" technical levels of both the region and its neighboring cities.
作者
肖素萍
梁琦
李建成
XIAO Suping;LIANG Qi;LI Jiancheng(School of Business,Sun Yat-Sen University,Guangzhou 510006,China)
出处
《大连理工大学学报（社会科学版）》
北大核心
2023年第1期50-62,共13页
Journal of Dalian University of Technology(Social Sciences)
基金
国家社会科学基金重大项目“虚拟集聚的理论及其应用研究”(18ZDA066)。
关键词
城镇化
生态效率
空间溢出
区域异质性
urbanization
ecological efficiency
spatial spillover
regional heterogeneity
