Research On The Couplination Corrdination Degree Between Eco-environmental Protection And High-quality Economic Development In The Yellow River Basin

The symposium on ecological protection and high-quality development of the Yellow River Basin held in 2019 not only emphasized the important position of the Yellow River Basin in China’s economic and social development and ecological security,but also upgraded the ecological environment protection and high-quality economic development strategy of the Yellow River Basin into a major national strategy.Since then,in 2021,the CPC Central Committee and the State Council issued the "Outline of the Yellow River Basin Ecological Protection and High Quality Development Plan",which further emphasized the importance of the Yellow River Basin ecological protection and high quality development strategy;In 2022,the Ministry of Ecology and Environment jointly issued the "Ecological and Environmental Protection Plan for the Yellow River Basin",which further clarified the key tasks of ecological and environmental protection in the Yellow River Basin,and also proposed ecological and environmental protection goals for 2030,2035,and the middle of this century.In this context,exploring the level of coupling and coordination between the two systems in the research area and their influencing factors has become a strategic issue that must be answered and resolved at present.In such a context,the 71 prefecture-level cities along the Reaches are selected as the research object for analysis as follows.Collects and sorts out the available data of each prefecture-level city in the research area from 2011 to 2020,measures and analyzes the comprehensive evaluation index of each indicator weight using entropy method,uses the coupling coordination degree model to measure and analyze the coupling coordination level between the two systems,and finally uses spatial econometric models to analyze the influencing factors of the coupling coordination relationship.Firstly,based on the coupling action mechanism of ecological and environmental protection as well as high-quality economic development,the status quo of the Reaches high-quality development in economy is combined to construct two evaluation index systems of ecological and environmental protection and high-quality economic development.The conclusions turned out from the above research are stated below.(1)The comprehensive evaluation indexes of the ecological and environmental protection as well as high-quality economic development of the prefecture-level cities in the study area from 2011 to 2020 present a rising trend as a whole.Seeing from different reaches,the conditions of the downstream are commonly better than those of the upstream and midstream.(2)During 2011-2020,the coupling coordination level of the prefecture-level cities studied is constantly enhancing.In 2016,most cities basically reached the barely coupling stage but with a level only at barely coupling or primary coupling.Meanwhile,in terms of the various reaches,although the coupling coordinative development level of each reach presents a rising trend,the level of the downstream is higher than those of the midstream and upstream.(3)The coupling coordination level of the ecological and environmental protection as well as high-quality economic development of the prefecture-level cities in the study area is not only under the influence of local factors but under the positive or negative influence of of factors ofneighboring and adjacent areas.