| Promoting the green development of Jiziwan Metropolitan Area of the Yellow Riveris of great significance to realize the high-quality development of the Yellow River Basin.Starting from the connotation of green development,based on the sustainable development theory,the coordinated development theory between man and land,the ecological benefit theory and the green development theory,this study makes an in-depth analysis of the current situation of green development in Jiziwan Metropolitan Area of the Yellow River,and constructs the green development level index system of Jiziwan Metropolitan Area of the Yellow River from the four aspects of green growth,green welfare,green wealth and green governance,The entropy weight TOPSIS method is used to calculate the green development level of Jiziwan Metropolitan Area of the Yellow River,and then its temporal and spatial evolution characteristics are analyzed.On this basis,using geographic detectors,through factor detection and factor interaction detection,this paper detects the influencing factors of the differentiation of green development level in Jiziwan Metropolitan Area of the Yellow River,and puts forward the corresponding green development countermeasures.Through the above research,the following conclusions are drawn:(1)As a whole,the level of green development has been continuously improved.The evaluation value of green growth has increased significantly in the whole research period,from 0.188 in 2005 to 0.768 in 2020.The evaluation value of Green Welfare showed a fluctuating upward trend throughout the study period,from 0.204 in 2005 to 0.632 in 2020.The evaluation value of green wealth showed an upward trend in the whole research period,and there were obvious stages.From 2005 to 2015,it showed a slow upward trend,increasing from 0.3 to 0.357.From 2015 to 2020,it showed a significant upward trend,increasing to 0.753.The evaluation value of Green Governance showed a significant upward trend throughout the study period,from 0.07 in 2005 to 0.751 in 2020.(2)From the inside of Jiziwan Metropolitan Area of the Yellow River,the green development level of each city shows a fluctuating upward trend.From the perspective of green growth,the evaluation value of green growth of local cities has been increasing from 2005 to 2020,but there are great differences in economic growth fluctuations among different cities.From the perspective of green welfare,the evaluation values of local cities are relatively stable during the study period,and there is no obvious upward or downward trend.From the perspective of green wealth,the evaluation value of green wealth of most cities in Jiziwan Metropolitan Area of the Yellow River remained basically the same during the study period,and the trend was relatively stable.From the perspective of green governance,the green governance evaluation values of other cities in Jiziwan Metropolitan Area of the Yellow River are basically the same from 2005 to 2020,except Hohhot,Baotou and Ordos in Inner Mongolia,and the overall trend is relatively stable.(3)In terms of spatial differentiation,during the whole study period,the spatial distribution of the high-level area of green development in Jiziwan Metropolitan Area of the Yellow River gradually changed from dispersion to concentration,the number of median areas increased and the number of low value areas decreased.The spatial pattern of green growth has changed significantly,which is highlighted by the gradual mixing of high-value areas from "point type" to high-value areas and median areas,so as to realize "sheet-like" development.The change of the spatial pattern of green welfare is more obvious,which is mainly reflected in the reduction of the number of high-value areas,the increase of the number of high-value areas,and the gradual increase of the development gap between the provincial capital city and the surrounding areas.The spatial pattern change of green wealth is not obvious,the overall value change is relatively small,and the distribution of high and low value areas is relatively fixed.The spatial pattern of green governance has a certain range of change,which is mainly reflected in the reduction of the number of high-value areas and low-value areas,the increase of the number of median areas and lowvalue areas,and the extension and development of median areas from "point type" to "sheet type".(4)The measurement results of the coupling coordination degree model show that the overall coupling coordination degree of green development shows a straight-line upward trend during the study period,and presents phased characteristics.The coupling and coordination level of green development system is between the verge of maladjustment and good coordination.The coupling and coordination degree of green development in local cities shows a fluctuating upward trend,and there are great differences among cities.The coupling and coordination degree of green development system of each city is consistent with the level of green development to a certain extent.In addition,the spatial evolution characteristics of the coordination degree of the green development system in Jiziwan Metropolitan Area of the Yellow River show regional integrity and differences.(5)In terms of spatial differentiation mechanism,the total retail sales of social consumer goods per capita,the number of doctors per 10000 people,the area of built-up areas,per capita deposits,the proportion of education expenditure,the market organization structure index and per capita fixed asset investment have the strongest explanatory power for the green development level of Jiziwan Metropolitan Area of the Yellow River In addition,from the perspective of the interaction among the factors,the interaction of any two of the seven factors with the strongest explanatory power of the green development level of Jiziwan Metropolitan Area of the Yellow River is greater than that of a single factor,which meets the requirements of Max[P(a),P(b)]<p(a ∩ b)<p(a)+P(b),and the types of interaction between the two are mutually reinforcing.Therefore,the spatial differentiation of the green development level of Jiziwan Metropolitan Area of the Yellow Riveris the result of the interaction of different driving factors,rather than a single factor. |
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