Li Xiaoyin 1, Bi Huaxing 1, Diao Ruimin 2, Liu Lifeng 1, Li Xiaoguang 1, Li Jun 1
1.College of Soil and Water Conservation, Beijing Forestry University, Key Laboratory of Soil and Water Conservation and Combating
Desertification, Ministry of Education, 100083, Beijing; 2.Forest Investigation and Planning Station, 471000, Luoyang, Henan: China