沿黄城市生态保护与高质量发展耦合协调时空演变分析

Analysis of Spatial⁃Temporal Evolution of Coupling Coordination Between Ecological Protection and High⁃Quality Development in Cities Along the Yellow River

为丰富黄河流域生态保护和高质量发展研究,并为沿黄城市经济发展提供对策建议,分别构建生态保护和高质量发展评价指标体系,以60个沿黄地级市为样本单元,采用熵值法对指标赋权并计算2010—2020年沿黄各市生态保护指数、高质量发展指数,采用耦合协调度模型计算生态保护与高质量发展耦合度、协调度并划分协调等级,计算相对发展度以判断生态保护与高质量发展耦合协调类型,分析沿黄城市生态保护与高质量发展耦合协调动态演变情况,结果表明:2010—2020年沿黄城市生态保护与高质量发展协调度大都稳中有升、少数城市呈下降趋势,2020年协调等级整体上还较低,尚有37个城市处于失调状态,生态保护与高质量发展的耦合协调任重道远;从空间上看,沿黄城市生态保护和高质量发展协调度总体上呈现下游>中游>上游的格局,研究时段生态保护与高质量发展协调度平均值大小排序前十位的城市多为沿海城市或省会城市、后十位的城市多为各省(区)的边缘城市,地理位置、资源禀赋、政策扶持程度和经济发展模式等对耦合协调度有重要影响;2020年沿黄城市生态保护与高质量发展耦合协调类型为生态保护滞后型的城市有31个、为均衡型的城市有5个、为生态保护领先型的城市有24个,表明沿黄城市生态保护整体上滞后于高质量发展。

In order to enrich the study of ecological protection and high⁃quality development in the Yellow River Basin and provide counter⁃measure suggestions for the economic development of cities along the Yellow River,the ecological protection and high⁃quality development evaluation index system was built separately,taking 60 prefecture⁃level cities along the Yellow River as sample units,using the entropy value method to assign weights to the indexes and calculate the ecological protection index and high⁃quality development index for each city along the Yellow River from 2010 to 2020,and calculating the The coupling coordination model was used to calculate the coupling degree and coor⁃dination degree of ecological protection and high⁃quality development in the watershed and to classify the coordination level,and to analyze the dynamic evolution of coupling and coordination between ecological protection and high⁃quality development in cities along the Yellow Riv⁃er.The results show that the coordination degree of ecological protection and high quality development of cities along the Yellow River from 2010 to 2020 is mostly increasing steadily,while some cities are decreasing,and the overall coordination level in 2020 is still lower,and 37 cities are still in maladjusted state,so the coupling and coordination of ecological protection and high quality development take a heavy burden and embark on a long road.From a spatial perspective,the coordination degree of ecological protection and high⁃quality development of cities along the Yellow River generally shows a pattern of downstream>midstream>upstream,and the top ten cities in the average size of the co⁃ordination degree of ecological protection and high⁃quality development in the study period are mostly coastal cities or provincial capitals,while the bottom ten cities are mostly marginal cities of provinces(regions),geographic location,resources endowment,degree of policy support and economic development model have important effects on the degree of coupling coordination.In 2020,there are 31 cities with lag⁃ging ecological protection,5 cities with balanced ecological protection,and 24 cities with leading ecological protection,indicating that the overall ecological protection of cities along the Yellow River lags behind high⁃quality development.