Research On The Impact Of Industrial Structure Upgrading On Eco-efficiency In The Yellow River Basin From The Perspective Of Environmental Regulation

Since ancient times,the Yellow River has been known as the mother river of the Chinese nation,with natural ecological corridors and multiple key ecological function areas.It occupies an important position in national economic development and ecological security,and building this safety barrier is particularly crucial.In the past forty years,the rapid development of industrialization has brought significant social progress and regional economic prosperity,but it has also caused problems such as low industrial level and environmental pollution in the river basin.The report of the 20 th National Congress of the Communist Party of China emphasizes that the key to achieving high-quality development is to promote the development of the economy and society towards a green and low-carbon direction,and the important focus of ecological environmental protection should be on continuously promoting the adjustment and optimization of the industrial structure and energy structure.In other words,the proportional structure of the three industries and the allocation of production factors within the industry determine the level of ecological efficiency.As the main ecological management measure of the government,environmental supervision can not only improve ecological quality and promote green development level,but also guide the industrial structure to upgrade towards rationalization and advancement through rational allocation of resources and technological innovation,forming a win-win situation for the environment,industry,and economy.Therefore,based on the impact of rationalization and upgrading of industrial structure on ecological efficiency,it is worth exploring how to fully exert the regulatory effect of environmental regulations.Firstly,this article defines the connotation of environmental regulation,industrial structure upgrading,and ecological efficiency.On the theoretical basis,it clarifies the transmission mechanism of industrial structure rationalization and upgrading on ecological efficiency,as well as the regulatory effect of environmental regulation in the process of industrial structure upgrading affecting ecological efficiency.Secondly,the evolution trend of environmental regulations and industrial structure upgrading in 9 provinces and regions of the Yellow River Basin was analyzed,and the static and dynamic changes in ecological efficiency in each region were calculated in detail using the Super-SBM model including unexpected outputs and the GML index.Thirdly,the spatial correlation of ecological efficiency is tested through the Moran index,and the agglomeration state of ecological efficiency is analyzed.The empirical part constructs a spatial Durbin model to test the spatial impact of rationalization and upgrading of industrial structure on ecological efficiency in the nine provinces and regions of the Yellow River Basin from 2000 to 2020,and adds interactive terms to test the regulatory effect of environmental regulation.Finally,divide the Yellow River basin into upper,middle,and lower reaches to explore whether there is regional heterogeneity in the impact of industrial structure upgrading on ecological efficiency.The main research conclusions of this paper are as follows:(1)The rationalization of industrial structure has significantly promoted the ecological efficiency of local and neighboring regions,showing "positive spillover".(2)The upgrading of industrial structure can significantly improve the ecological efficiency of the region,but its impact on surrounding areas is not significant.(3)The direct effect of environmental regulation on ecological efficiency is significantly positive,while the indirect effect is not significant.(4)The interaction between environmental regulation and industrial structure rationalization is positive but not significant,and environmental regulation weakens the promotion of industrial structure rationalization on the ecological efficiency of neighboring areas.(5)Environmental regulation has a significant negative regulatory effect on the impact of industrial structure upgrading on ecological efficiency,and environmental regulation has strengthened the inhibition effect of industrial structure upgrading on ecological efficiency in neighboring areas.Finally,this article proposes practical and feasible policy recommendations from the perspectives of optimizing industrial structure,improving environmental regulatory policies,establishing regional coordination mechanisms,and strengthening foreign economic cooperation.