1. The State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment; Chinese Academy of Sciences; Xi'an China
2. School of Human Settlement and Civil Engineering; Xi'an Jiaotong University; China
3. Department of Geography; Xingtai University; China
4. College of Resources and Environmental; University of the Chinese Academy of Science; Beijing China
5. Forestry Bureau of Qianshan Scenic Area Administrative Committee; Anshan China