Change and Driving Factors of Eco-environmental Quality in Beijing Greenbelt:From the Perspective of "Nature-based Solutions"
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 eco-environmental quality and the construction of urban green space system.
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