Ecological vulnerability of highland mountain areas:A case study of Kangding City,Sichuan Province
This study constructed an assessment index system for ecological vulnerability based on the vulnerability scoping diagram(VSD)model.It dynamically assessed the three-phase ecological vulnerability of Kangding City from 2011 to 2019 using the analytic hierarchy process-principal component analysis-entropy weight method(AHP-PCA-EWM).Through the analysis of spatio-temporal variations,spatial correlations,and driving factors,it revealed the spatio-temporal differentiation characteristics and driving mechanism of Kangding's ecological vulnerability,aiming to provide suggestions for the ecological restoration,conservation,and sustainable development of Kangding.The results of this study are as follows:① Throughout the study period,Kangding exhibited an overall moderate ecological vulnerability,with increased potentially-and slightly-vulnerable areas and a decreased severely vulnerable area,suggesting a promising ecological evolutionary trend.Moreover,the ecological vulnerability of Kangding manifested spatial distributions characterized by high-high clusters in the western and southeastern portions and low-low clusters in the northeastern and middle portion;② The spatial distributions of ecological vulnerability in Kangding were subjected to various internal and external factors,with natural driving factors like vegetation cover,biological abundance,soil and water conservation,and meteorology being the dominant ones.
ecological vulnerabilityAHP-PCA-EWMMoran's ⅠgeodetectorKangding City
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