北京市绿隔地区生态环境质量变化与驱动因素分析——以“基于自然的解决方案”为视角

Change and Driving Factors of Eco-environmental Quality in Beijing Greenbelt:From the Perspective of“Nature-based Solutions”

引入“基于自然的解决方案”(NBS)视角,借助空间计量模型,分析绿隔地区的生态环境质量变化及其驱动因素,得到以下结果:1)从生态环境质量变化看,2005—2020年,绿隔地区整体上呈现先下降后回升的趋势,空间上圈层格局明显;2)两道绿隔地区的生态环境质量变化趋势不同,第一道绿隔地区相对更低,且一直延续下降趋势,第二道绿隔地区2015年后止降回升;3)从驱动因素看,NBS措施对绿隔地区生态环境质量改善具有驱动作用,其中绿色基础设施在两道绿隔地区都表现出显著的驱动作用,而生态基础设施仅在第二道绿隔地区表现出显著的驱动作用。北京市进入减量发展新阶段以来,绿隔地区的生态环境质量明显改善。未来可以更有针对性地应用NBS措施,进一步提升城市生态环境质量,完善城市绿色空间体系建设。

This paper introduces the perspective of“Nature-based Solutions”(NBS)and analyzes the change and driving factors of eco-environmental quality in greenbelt.The findings are as follows.1)From 2005 to 2020,the eco-environmental quality showed a trend of first decline and then recovery,and a circle spatial pattern was obvious.2)The change trend of eco-environmental quality in the two greenbelts was different.The eco-environment quality of the first greenbelt was relatively lower,and it continued to decline.The eco-environmental quality of the second greenbelt has stopped falling and rebounded after 2015.3)As for driving factors,the study confirmed that NBS measures had driving effect on the improvement of eco-environmental quality.Green Infrastructure showed a significant driving effect in both greenbelts,while ecological infrastructure only showed a significant driving effect in the second greenbelt.Since entering the stage of reduction development,the eco-environmental quality of Beijing Greenbelt has improved obviously.In the future,NBS measures can be more targeted to further improve urban ecoenvironmental quality and the construction of urban green space system.