1. Professor and Vice President, State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research (IWHR), Beijing 100038, China; and Secretary General, International Research and Training Center on Erosion and Sedimentation (IRTCES), Beijing 100048, China.
2. Professor, State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research (IWHR), Beijing 100048, China (corresponding author).