摘要
提升区域绿色经济效率既是实现区域高质量发展的关键,更是促进区域协调发展的重要手段。揭示区域绿色经济效率梯度转换规律及影响因素,对促进区域绿色全面转型与协调发展具有重要意义。运用超效率EBM-GML模型测度长江经济带城市绿色经济效率,对比分析2016年长江经济带“共抓大保护、不搞大开发”战略前后区域绿色经济效率空间梯度格局变化,进而采用空间马尔科夫链和空间计量模型揭示绿色经济效率梯度转换规律与影响因素。结果表明:(1)2003—2020年长江经济带绿色经济效率整体呈持续上升趋势,2016年以来绿色经济效率增幅明显,技术进步是主要来源。(2)长江经济带绿色经济效率沿上中下游呈现纵向的“~”型梯度强化趋势,而从沿江向远江的横向来看,则呈现扁平化到倒“U”型梯度转换。(3)2016年以来长江经济带绿色经济效率发展趋势良好,高梯度城市的正向空间溢出效应凸显,使得低梯度城市“路径突破”效应显著增强。(4)经济发展、城市规模、投资强度、环境规制对绿色经济效率梯度转换具有正外部性,而产业结构、对外开放则有负向溢出效应。对比两个时期发现,绿色经济效率梯度转换的驱动因素发生了明显变化,其中经济发展水平、城市规模、产业结构、政府干预对绿色经济效率的间接效应强化,而环境规制对其直接效应增强。
Improving the efficiency of regional green economy is not only the key to achieving high-quality regional development,but also an important means to promote coordinated regional development.Revealing the gradient transformation law and influencing factors of regional green economy efficiency is of great significance to promote regional green comprehensive transformation and coordinated development.This paper uses the super-efficient EBM-GML model to measure the urban green economy efficiency of the Yangtze River Economic Belt,compares and analyzes the changes of regional green economy efficiency spatial gradient pattern before and after the strategy of"promoting well-coordinated environmental conservation and avoiding excessive development"in the Yangtze River Economic Belt in 2016,and then uses the spatial Markov chain and spatial econometric model to reveal the transformation law and influencing factors of green economy efficiency gradient.The results show that:(1)From 2003 to 2020,the overall green economy efficiency of the study area showed a continuous upward trend,and since 2016,the green economy efficiency has increased significantly,and technological progress is the main source.(2)The green economy efficiency showed a vertical"~"gradient strengthening trend along the upper,middle and lower streams,while from the horizontal perspective from the main stream and its sides,it showed a flattened to inverted"U"gradient transformation.(3)Since 2016,the green economy efficiency has developed well,and the positive spatial spillover effect of high-gradient cities has been highlighted,which has significantly enhanced the"path breakthrough"effect of low-gradient cities.(4)Economic development,urban scale,investment intensity,and environmental regulations have positive externalities for the gradient transformation of green economy efficiency,while industrial structure and opening-up have negative spillover effects.Comparing the two periods,we found that the driving factors for the gradient transformation of green econ
作者
李汝资
陈巧娟
高雄愿
孟思贤
魏国恩
刘耀彬
LI Ru-zi;CHEN Qiao-juan;GAO Xiong-yuan;MENG Si-xian;WEI Guo-en;LIU Yao-bin(Research Center of Central China Economic and Social Development,Nanchang University,Nanchang 330031,China;School of Economics and Management,Nanchang University,Nanchang 330031,China;School of Resources and Environment,Nanchang University,Nanchang 330031,China)
出处
《自然资源学报》
CSSCI
CSCD
北大核心
2024年第1期125-139,共15页
Journal of Natural Resources
基金
国家自然科学基金项目(42101168,42271209)
国家科技重点研发专项课题(2022YFD1600603)
江西省重点研发计划项目(20223BBG71013)
关键词
绿色经济效率
梯度转换
空间马尔可夫链
空间溢出效应
长江经济带
green economy efficiency
gradient transformation
spatial Markov chain
spatial spillover effects
Yangtze River Economic Belt
