1. Doctoral Candidate, Nanjing Hydraulic Research Institute, Nanjing 210029, Jiangsu, China; formerly, Graduate Student, School of Resource and Earth Science, China Univ. of Mining and Technology, Xuzhou 221116, Jiangsu, China.
2. Professor, School of Resource and Earth Science, China Univ. of Mining and Technology, Xuzhou 221116, Jiangsu, China.
3. Assistant Professor, Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China (corresponding author).
4. Graduate Student, School of Resource and Earth Science, China Univ. of Mining and Technology, Xuzhou 221116, Jiangsu, China.