"双碳"目标下江西省碳排放效率动态演进与收敛特征OA

In order to investigate the spatio-temporal evolution,convergence characteristics and influencing factors of carbon emission efficiency of 11 prefecture-level cities in Jiangxi province,this paper analyzes the carbon emission efficiency by means of super efficiency SBM model,convergence test and panel fixed effect regression model.The results show that,1)From the perspective of time dimension,the overall carbon emission efficiency of Jiangxi province shows a fluctuating increase from 2008 to 2021,among which the carbon emission efficiency of Nanchang city,Pingxiang city,Xinyu city,Yingtan city and Ganzhou city is higher,and other cities still have a large space for efficiency improvement.However,the growth rate of regions with low carbon emission efficiency is higher than that of regions with high efficiency,and there is a"catch-up effect."2)From the spatial perspective,the carbon emission efficiency of each city varies greatly,with the characteristics of"high in the south and low in the north,high in the central and western regions and low in the northeast",showing a discrete spatial distribution state without spatial agglomeration.3)From the convergence characteristics,the carbon emission efficiency of each city has σ convergence and β absolute convergence.4)From the perspective of influencing factors,carbon emission efficiency has a significantly positive correlation with the level of economic development,the degree of opening up and energy efficiency,and a significantly negative correlation with industrial structure.In general,the carbon emission efficiency of each city has obvious differences in temporal and spatial distribution,but this difference is showing a narrowing trend.