1. Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, No. 35, Tsinghua East Road, Beijing 100083, China
2. Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
3. National Energy R&D Center for Non-Food Biomass, Beijing Forestry University, No. 35, Tsinghua East Road, Beijing 100083, China