中国三大城市群植被覆盖度与地区生产总值协调发展研究

Study on the coordinated development of fractional vegetation coverageand regional gross domestic productin three major urban agglomerations in China

为探究植被覆盖度与地区生产总值的耦合协调发展对城市生态文明建设的作用,以长三角、京津冀和珠三角48个城市为研究对象,构建植被覆盖度与地区生产总值的耦合协调度模型,并运用Theil-Sen Median趋势分析、Mann-Kendall突变检验以及地理探测器模型,揭示2000-2020年3个城市群植被覆盖度与地区生产总值的耦合发展变化及其驱动因素。研究结果表明:3个城市群植被覆盖度与地区生产总值主要呈波动型增长,且二者发展状态不平衡。植被覆盖度与地区生产总值耦合协调度基本由极度失调转变为高度耦合,呈稳步上升趋势。土地利用类型和夜间灯光数据是影响城市群植被覆盖度与地区生产总值协调度的主要驱动力,二氧化碳排放量与高程之间交互作用解释力最高,达到67%。研究结论为城市经济与生态文明建设协调发展提供参考。

In order to explore the effect of the coupling and coordinated development of fraction vegetation coverage and regional GDP on the construction of urban ecological civilization,48 cities in the Yangtze River Delta,Beijing-Tianjin-Hebei and Pearl River Delta were taken as the research objects,and the coupling and coordination degree model of vegetation coverage and regional GDP was constructed.The Theil-Sen Median trend analysis,Mann-Kendall mutation test and geographical detector model were used to reveal the coupling development changes and driving factors of vegetation coverage and regional GDP in three urban agglomerations from 2000 to 2020.The results show that the vegetation coverage and regional GDP of the three urban agglomerations mainly show fluctuating growth,and the development status of the two is unbalanced.The coupling coordination degree between vegetation coverage and regional GDP has basically changed from extreme imbalance to high coupling,showing a steady upward trend.Land use type and nighttime light data are the main driving forces affecting the coordination between vegetation coverage and regional GDP in urban agglomerations.The interaction between carbon dioxide emissions and elevation has the highest explanatory power,reaching 67%.The research conclusions provide a reference for the coordinated development of urban economy and ecological civilization construction.