Ecological Vulnerability Assessment of the Qaidam Basin Based on SRP Model
Ecological vulnerability assessment is an important prerequisite for ecological management and restoration.The Qaidam Basin is one of the most sensitive regions to global climate change and human ac-tivities disturbance.In this paper,the ecological vulnerability evaluation index system of the Qaidam Basin is constructed by SRP model,and the ecological vulnerability of the Qaidam Basin is evaluated systemati-cally and quantitatively based on geographic information technology and remote sensing technology,using hierarchical analysis.The results show that:1)the area of the slight,mild type of vulnerable area in the Qa-idam Basin is 79,326 km2,accounting for 29.28%of the total area;the area of the moderate type of vulner-able area is 67,044 km2,accounting for 24.74%of the total area;the area of the severe,extreme type of vulnerable area is 124,613 km2,accounting for 45.98%of the total area.2)the ecological vulnerability in-dex of the Qaidam Basin gradually increases from the east to the center and the west.3)the ecological vul-nerability of the Qaidam Basin shows a strong positive spatial correlation.
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