1. College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
2. Guangzhou Institute of Forestry and Landscape Architecture, Guangzhou 510405, China
3. Faculty of Electronic Information Engineering, Guangdong Baiyun University, Guangzhou 510450, China
4. State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China
5. College of Forestry, Sichuan Agricultural University, Chengdu 611130, China