长三角城市群生态效率的时空分异及影响因素研究  

Study on Temporal and Spatial Evolution and Influencing Factors of Eco-efficiency in Yangtze River Delta Urban Agglomeration

作　　者：张长江[1] 陈雨晴 王宇欣 ZHANG Changjiang;CHEN Yuqing;WANG Yuxin

机构地区：[1]南京工业大学经济与管理学院,江苏南京211816

出　　处：《南京工业大学学报（社会科学版）》2021年第3期95-108,110,共15页Journal of Nanjing Tech University：Social Science Edition

基　　金：国家自然科学基金面上项目“重污染行业企业环境绩效与财务绩效互动机理与政策研究”(71273129);江苏省社会科学基金一般项目“长三角一体化背景下江苏工业绿色发展的区域协调机制研究”(19EYB012)。

摘　　要：改善生态效率对促进长三角城市群经济与环境的协调发展具有重要意义。采用Super-SBM模型和Tobit回归等方法对2003—2017年长三角城市群27个城市生态效率的时空分异特征和影响因素进行分析。研究发现:长三角城市群生态效率整体呈缓慢波动上升态势,研究期内出现两次V型变化;生态效率分解后的纯技术效率高于规模效率且在2003—2013年间呈反向变化;非期望产出冗余是导致大部分城市生态效率无效的主要原因;长三角城市群生态效率空间差异较为明显,呈现“东优于西”的分布特征。实证结果表明:产业结构、科技投入、人口密度与长三角城市群生态效率显著正相关,绿化水平与生态效率显著负相关,对外开放程度对生态效率的影响不显著。Improving ecological efficiency is of great significance to promote the coordinated development of economy and environment in The Yangtze River Delta urban agglomeration.By using Super-SBM model and Tobit regression,this paper analyzes the temporal and spatial differentiation characteristics and influencing factors of ecological efficiency of 27 cities in Yangtze River Delta urban agglomeration from 2003 to 2017.It is found that the overall ecological efficiency of Yangtze River Delta urban agglomeration fluctuates slowly,and there are two"V-shaped"trends in the study period.The pure technical efficiency after ecological efficiency decomposition is higher than scale efficiency,and from 2003 to 2013,there was an inverse change between the two.The results show an obvious spatial difference of ecological efficiency in Yangtze River Delta urban agglomeration,with the east higher than the west.The industrial structure,investment in science and technology and population density are significantly and positively correlated with the ecological efficiency of the Yangtze River Delta urban agglomeration;the greening level is significantly and negatively correlated with the ecological efficiency,and the degree of opening up has no significant impact on the ecological efficiency.

关 键 词：长三角城市群 生态效率 时空分异特征 高质量发展 冗余分析 

分 类 号：F127[经济管理—世界经济] X321[环境科学与工程—环境工程]