1. Associate Professor, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Gansu Agricultural Univ., Lanzhou, 730070, People’s Republic of China.
2. Associate Professor, The State Key Laboratory of Arid Agroecology, Lanzhou Univ., 730000 People’s Republic of China.
3. Professor, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China.
4. Lecturer, Water Resources Engineering Dept., Gansu Agricultural Univ., Lanzhou 730070, People’s Republic of China.