Research on the Coupling and Coordination of Scientific and Technological Innovation and Green Development in the Yellow River Basin
Scientific and technological innovation and green development are important contents of the construction of Chinese modern economic system and high-quality development.This paper takes 80 cities in the Yellow River Basin as research objects,establishes an evaluation index system of scientific and technological innovation and green development,and uses entropy method,coupling coordination degree model and Dagum Gini coefficient method to clarify the coupling coordination relationship and regional differences between scientific and technological innovation and green development.The results show that:(1)From 2010 to 2021,the overall level of scientific and technological innovation and green development in the Yellow River Basin showed a slow growth trend,and the ability of scientific and technological innovation and green development was improved;The development level of science and technology innovation in the Yellow River basin is obviously heterogeneous,showing a blocky distribution pattern,which is represented by the lower Yellow River region,the middle Yellow River region,and the upper Yellow River region.The level of green development also has a spatial differentiation pattern,with the overall trend of increasing the number of high-level cities and decreasing the number of low-level cities.(2)The changes of coupling degree,coupling coordination degree and relative development degree of scientific and technological innovation and green development in the Yellow River Basin from 2010 to 2021 are consistent,showing a"W"shaped trend;The spatial heterogeneity of coupling degree is obvious,and the high level coupling stage is the main stage of the coupling between scientific and technological innovation and green development in the Yellow River Basin.The overall coupling coordination degree is primarily at the primary coordination level,mainly with provincial capitals and coastal cities as the core points of distribution;As a whole,the relative development degree shows a trend of gradual decrease in cities with lagging green development,gradual increase in cities with lagging scientific and technological innovation,and decrease in cities with synchronous development.(3)Dagum Gini coefficient analysis results show that the overall difference of the coupling coordination degree between scientific and technological innovation and green development in the Yellow River Basin during the sample period is gradually decreasing.The Gini coefficient in the upper reaches of the Yellow River Basin is much higher than that in the middle and lower reaches of the Yellow River Basin,and the difference in the lower reaches of the Yellow River basin is the least.The Gini coefficient between the upper Yellow River and the lower Yellow River is the largest,and the difference between the lower Yellow River and the middle Yellow River is the smallest.Among the sources and contributions of the differences,inter-regional differences contribute the most,becoming the main reason for the overall difference in coupling coordination across the entire basin.
scientific and technological innovationgreen developmentcoupling coordinationspatiotemporal patternYellow River basin
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