Impacts of innovation factor agglomeration on carbon emission efficiency in the Yellow River Basin
As a key supporting engine for the implementation of China's"Carbon Peak"and"Carbon Neutrality"strategy,innovation factor agglomeration plays an important role in contributing to the low-carbon and sustainable development of the Yellow River Basin(YRB).This study explored the spatial and temporal distribution characteristics and spatial correlations between innovation factor agglomeration and carbon emission efficiency of 78 prefecture-level cities in the YRB from 2006 to 2019.On the basis of STRIPAT theory,the panel regression model and the spatial Durbin model were constructed to investigate the influence mechanism as the result of innovation factor agglomeration on carbon emission efficiency in the YRB.The main results are as follows:(1)The agglomeration of innovation factors in the study area presented a spatial evolution pattern of"large dispersion and small concentration",in which a significant characteristic of multipolar agglomeration was dominated by provincial capitals.The spatial distribution of carbon emission efficiency showed a pattern of"a high level in the downstream area and a low level in the middle and upstream areas".There were four patterns of correlation between innovation factor agglomeration and carbon emission efficiency:high-high,low-low,high-low,and low-high.The spatial distribution of the four patterns changed from"point-like dispersion"to"piece-like concentration".(2)Technological achievement agglomeration and carbon emission efficiency presented a significant U-shaped relationship,and both innovative talent agglomeration and innovative capital agglomeration had a positive impact on carbon emission efficiency;however,the impact coefficient of innovative capital agglomeration was not significant.Besides,three innovation factor agglomerations of different resource-rich and spatially located cities had heterogeneous effects on carbon emission efficiency.(3)The spatial spillover effect of technological achievement agglomeration did not form a U-shaped curve,while both innovative talent agglomeration and innovative capital agglomeration had significant positive spillover effects on carbon emission eficiency.This study put forward some suggestions in terms of strengthening the spatial interaction of innovation factors,accelerating the accumulation of innovative talents and promoting the flow of innovative capital,which provided a reference for the YRB to stimulate innovation vitality,promote green and low-carbon transformation and high-quality development.
innovation factor aggregationcarbon emission efficiencySuper-SBM modelspatial Durbin modelYellow River Basin
万方数据
维普
