1. Northeast China Observatory of Frozen-soils Engineering and Environment, State Key Laboratory of Frozen-Soils Engineering, Northwest Institute of Eco-Environment and Resources (NIEER); Chinese Academy of Sciences; Lanzhou China
2. University of Chinese Academy of Sciences; Beijing China
3. School of Civil Engineering; Harbin Institute of Technology; Harbin China
4. China Forest Ecological Research Network Station at the Headwater Area of Nenjiang River, Heilongjiang Province; Institute of Agriculture and Forestry; Jagdaqi Heilongjiang China
5. National-Local Joint Engineering Laboratory of Geo-Spatial Information Technology; Hunan University of Science and Technology; Xiangtan Hunan China
6. School of Geography and Tourism; Harbin University; Harbin China