1. Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, China
2. Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing 210042, China
3. Experimental Center of Forestry in North China, Chinese Academy of Forestry, Beijing 102300, China
4. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
5. Kunyu Mountain Forest Station of National Ecological Quality Comprehensive Monitoring Centre, Yantai 264100, China