1. Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geography Science, Beijing Normal University, 19 Xinjiekouwai Street, Haidian District, Beijing, 100875, China
2. College of Resources Science and Technology, Faculty of Geographical Science, Beijing Normal University, 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China
3. Business Development Department, China Forest International Engineering Consulting Co., Ltd., 14 Hepinglibei Street, Dongcheng District, Beijing 100013, China
4. Department of Biostatistics and Epidemiology, University of Massachusetts Amherst, 300 Massachusetts Ave, Amherst MA, 01003, USA