1. Key Laboratory of Land Resources Evaluation and Monitoring in Southwest China, Ministry of Education, Sichuan Normal University, Chengdu, China
2. Academy of Global Governance and Area Studies, Sichuan Normal University, Chengdu, China
3. School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, China
4. Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu 610081, China
5. Giant Panda National Park Chengdu Administration, Chengdu 610096, China