Evaluation and Influencing Factors of Ecological Resilience Based on Vegetation Index:A Case Study of Wuling Mountain Area
The normalized vegetation index(NDVI)was selected as a proxy indicator of ecological resilience.An ecological resilience measurement model was constructed from two dimensions of sensitivity and adaptability to evaluate the ecological resilience of the Wuling Mountain Area from 2000 to 2020.The main influencing factors of the ecological resilience in the Wuling Mountain Area were explored through the multiple linear regression model.The results show that:(1)The average value of ecological resilience in the Wuling Mountain Area from 2000 to 2020 is 0.45,and the ecological resilience forms a spatial distribution pattern of high in the north and low in the south,high in the west and low in the east.(2)Low,lower,medium,higher and high ecological resilience areas account for 0.29%,18.19%,35.82%,29.01%and 16.69%of the region,respectively.(3)Ecological resilience is negatively correlated with mean annual temperature,slope,proportion of built-up land area and carbon emissions,and positively correlated with annual precipitation,elevation,population density and GDP.The mean annual temperature,population density and carbon emissions are the main factors affecting ecological resilience in the Wuling Mountain Area.
Ecological resilienceNormalized vegetation indexInfluencing factorWuling Mountain Area
国家科技期刊平台
NSTL
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