Xinjiang Institute of Ecology and Geography;
Chinese Academy of Sciences;
Urumqi 830011;
China;
College of Resource and Environment Sciences;
Xinjiang University;
Urumqi 830046;
China;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
Department of Economic Management;
Huanghuai University;
Zhumadian 463000;
China;
Cold and Arid Regions Environmental and Engineering Research Institute;
Chinese Academy of Sciences Lanzhou 730000;
China;