Spatiotemporal differentiation and evolution trend of green and low-carbon development performance in the National Major Strategic Regions
[Objective]The purpose of this study was to evaluate the performance of green and low-carbon development in the Major Strategic Regions of China,analyze its spatiotemporal differentia-tion characteristics and dynamic change,and provide a scientific basis and decision-making refer-ence for promoting high-quality regional development in a coordinated manner.[Methods]Based on the Global-Luenberger index of the super-efficiency EBM model,this study scientifically evalu-ated the green and low-carbon development performance of China's Major Strategic Regions from 2012 to 2020.Dagum Gini coefficient,variance decomposition,and traditional and spatial kernel density estimation were used to reveal the spatiotemporal differentiation,dynamic change,and long-term transfer trend.[Results](1)During the sample study period,the performance of green and low-carbon development in the Major Strategic Regions has been improved,showing the re-gional disequilibrium characteristics of Guangdong-Hong Kong-Macao Greater Bay Area>Cheng-du-Chongqing>Beijing-Tianjin-Hebei>Yangtze River Delta>Yellow River Basin>the middle reaches of the Yangtze River.(2)The spatial difference of green and low-carbon development per-formance in the Major Strategic Regions was small,showing a trend of decline and then rising over time.Supervariable density difference was the main source of spatial difference.Structural differ-ences mainly depended on technological progress differences,input factors,and undesired output productivity differences.Further subdividing the factors,environmental pollution control productiv-ity differences and net carbon emission reduction productivity differences were the main driving forces for regional disparities in green and low-carbon development performance.(3)The green and low-carbon development performance of the Major Strategic Regions was generally high,but there was a trend of spatial polarization.The green and low-carbon development of all regions was manifested as low-performing cities moved upward,medium-performing cities showed sustainabili-ty,and high-performing cities moved downward,and the overall distribution characteristics were re-versed.When considering the spatial conditions,the positive spillover effect of neighboring cities in the Yellow River Basin,the middle reaches of the Yangtze River Delta,and the Yangtze River Economic Belt was significant,but the spatial spillover effect of the Guangdong-Hong Kong-Ma-cao Greater Bay Area and Chengdu-Chongqing was not obvious,and the"beggar-thy-neighbor"phenomenon existed in the Beijing-Tianjin-Hebei.[Conclusion]In order to establish a new pattern of green and low-carbon development led by the Major Strategic Regions,it is necessary to ratio-nally optimize the spatial layout and scientifically understand the structural differences to jointly improve green and low-carbon development performance,while giving full play to the spatial spill-over effect to form a joint force for improving green and low-carbon development performance.
green and low-carbon developmentGlobal-Luenberger indexDagum Gini coeffi-cientkernel density estimationMajor Strategic Regions
NETL
NSTL
万方数据
