长三角地区二重开放与能源生态效率时空格局及关联性研究

Research on Spatiotemporal Pattern and Correlation of the Yangtze River Delta Region Double Opening and Energy Eco-Efficiency

如何形成更高层次的国际开放格局和更切实有效的国内开放格局,实现资源节约、绿色低碳与经济发展共赢,已成为长三角地区高质量和可持续发展的重要命题。基于2011-2021年长三角地区41个城市的面板数据,探究二重开放和能源生态效率的时空格局及关联性,结果表明:第一,国际开放度整体上呈先下降后平稳趋势,区际开放度呈M型演变特征,能源生态效率呈“上升-平稳”的时序演变趋势。第二,能源生态效率呈现出上海>江苏>浙江>安徽的格局分布特征,主要表现为逐级改变特征,且具有显著的空间指向特征。第三,国际开放与能源生态效率之间存在U型关系,区际开放对能源生态效率具有显著正向促进作用,二重开放存在互补和溢出效应。

It has become an important proposition for the high-quality and sustainable development of the Yangtze River Delta region to form a higher level of international opening-up pattern and a more effective domestic opening-up pattern and to achieve resource conservation,green low-carbon and win-win economic development.Based on the panel data of 41 cities in the Yangtze River Delta region from 2011 to 2021,the spatial and temporal pattern and correlation between the double opening and energy eco-efficiency were explored.The results show that:First,on the whole,the international openness decreased first and then stabilized,the inter-regional openness showed M-type evolution,and the energy eco-efficiency showed a sequential evolution trend of“rising-stable”.Second,energy eco-efficiency presents the pattern distribution characteristics of Shanghai>Jiangsu>Zhejiang>Anhui,which mainly shows the characteristics of step by step change,and has a significant spatial orientation.Third,there is a U-shaped relationship between international opening and energy eco-efficiency.Interregional opening has a significant positive promoting effect on energy eco-efficiency,and the dual opening has complementary and spillover effects.