1. School of Architecture and Civil Engineering, Chengdu University, Chengdu, Sichuan, China
2. State Key Laboratory of Geo-hazard Prevention and Geo-environment Protection, Chengdu University of Technology, Chengdu, Sichuan, China
3. Data Analysis and Social Inquiry Lab (DASIL), Grinnell College, Grinnell, IA, USA
4. Department of Natural Resources of Guizhou Province, Guiyang, China