1. Key Laboratory of Silviculture and Conservation of the Ministry of Education, College of Forestry, Beijing Forestry University, Beijing, China
2. National Innovation Alliance of Sapindus Industry, Beijing Forestry University, Beijing, China
3. National Energy R&D Center for Non-Food Biomass, Beijing Forestry University, Beijing, China
4. State Key Laboratory for Efficient Production of Forest Resources, College of Forestry, Beijing Forestry University, Beijing, China