1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Environment & Civil Engineering, Chengdu University of Technology, Chengdu 610059, China
2. College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China
3. Jiuzhaigou Administrative Bureau, Zhangzha Town, Jiuzhaigou County, Sichuan Province 623402, China
4. School of materials Science and engineering, Northwestern Polytechnical University, Xi'an 710072, P.R. China