Tianshan Zha¹, Jingyong Ma², Bourque Charles³, Xin Jia¹, Yun Tian⁴, Yujie Bai⁴, Peng Liu⁴, Ruizhi Yang⁴, Cheng Li⁴, Chunyi Li⁵, Jing Xie⁶, Haiqun Yu⁶, Feng Zhang⁶ and Caixian Zhou⁶, (1)Beijing Forestry University, School of Soil and Water Conservation, Beijing 100083, China, (2)Beijing Forestry University, School of Soil and Water Conservation, Beijing City, China, (3)University of New Brunswick, Fredericton, Canada, (4)Beijing Forestry University, Beijing, China, (5)Chinese Academy of Forestry, Beijing, China, (6)Beijing Forestry Carbon Administration, Beijing, China