1. Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu 610041, China; Institute of Mountain Hazards and Environment (IMHE), Chinese Academy of Sciences, Chengdu 610041, China; and State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu Univ. of Technology, Chengdu 610059, China.
2. Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu 610041, China; and Institute of Mountain Hazards and Environment (IMHE), Chinese Academy of Sciences, Chengdu 610041, China (corresponding author).
3. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu Univ. of Technology, Chengdu 610059, China.