开放视域下京津冀城市群工业集聚与碳排放间关系研究OACHSSCDCSTPCD

In the context of coordinated development in the Beijing-Tianjin-Hebei Urban Agglomeration,studying the impact of industrial agglomeration on carbon emissions can provide references for formulating regional emission reduction policies and achieving the goal of"double carbon".Based on the industrial output density index,this paper used the panel data of 13 cities in Beijing-Tianjin-Hebei urban agglomeration from 2010 to 2021,and empirically examined the nonlinear relationship and operating mechanism between industrial agglomeration and per capita carbon emissions by using the spatial Durbin model and the mediating effect model.The results showed that:There existed a typical positive U-shaped curve relationship between industrial agglomeration and local per capita carbon emissions,and a reverse U-shaped curve relationship with cities of similar economic levels in the region.Per capita carbon emissions between cities displayed spatial distribution characteristics of high-high agglomeration or low-low agglomeration,and exhibited a sub-stitution relationship with negative spatial spillover effects.Trade openness could serve as an intermediate variable affecting per capita carbon emissions by industrial agglomeration,where industrial agglomeration indirectly impacted per capita carbon emissions through the scale,technology,and structure of trade openness.