1. Key Laboratory of Mineral Resources in Western China (Gansu Province), School of Earth Sciences Lanzhou University Lanzhou China
2. Key Laboratory of Western China's Environmental Systems, Ministry of Education, College of Earth and Environmental Sciences Lanzhou University Lanzhou China
3. School of Geography and Ocean Science, Jiangsu Collaborative Innovation Centre for Climate Change Nanjing University Nanjing China
4. North‐west Institute of Eco‐Environment and Resources Chinese Academy of Science Lanzhou China