1. Key Laboratory of Eco-hydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
2. University of Chinese Academy of Sciences, Beijing 100049, China
3. Gansu Provincial Soil and Water Conservation Research Institute, Lanzhou 730000, China
4. Gansu Provincial Water Science Research Institute, Lanzhou 730000, China
5. State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China