1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Water Cycle & Related Land Surface Processes, Beijing, China;
2. School of Environmental Sciences (SES), Jawaharlal Nehru University, New Delhi, India;
3. Department of Rangeland and Watershed Management, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran;
4. Department of Geomorphology, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran