1. College of Tourism and Service Management, Nankai University, Tianjin, People’s Republic of China
2. School of Management, Shandong University, Jinan, People’s Republic of China
3. School of Physical Education, Shandong University, Jinan, People’s Republic of China
4. School of Geography and Ocean Science, Nanjing University, Nanjing, People’s Republic of China
5. Huangshan National Park Ecosystem Observation and Research Station, Ministry of Education, Nanjing, People’s Republic of China