supported by NSFC(grant no.41173015);the China Scholarship Council(CSC);National Education Ministry Doctoral Foundation(grant no. 20100211110020).
The central and northwestern Tibetan Plateau region,also called"Qiangtang Plateau"(30°27'25"-35°39'13"N,83o41'14"-95°10'46"E),is the highest and largest arcticalpine area of the Earth covering approxima...