1. School of Civil and Transportation Engineering, Permafrost Institute, and Northeast-China Observatory & Research Station of Permafrost Geo-Environment(Ministry of Education), Northeast Forestry University, Harbin, China
2. Key Laboratory of Remote Sensing of Gansu Province, Heihe Remote Sensing Experimental Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
3. Key Laboratory of Sustainable Forest Ecosystem Management (Ministry of Education), School of Forestry, Northeast Forestry University, Harbin, China
4. State Key Laboratory of Frozen Soils Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
5. College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, China
6. Institute for Alpine Environment, Eurac Research, BozeRn-Bolzano, Italy