1. Department of Land Resources and Tourism Sciences, Nanjing University, Nanjing, People’s Republic of China
2. School of History Culture and Tourism, Fuyang Normal College, Fuyang, People’s Republic of China
3. School of Tourism, Guangzhou University, Guangzhou, People’s Republic of China
4. School of Geography and Tourism, Chongqing Normal University, Chongqing, People’s Republic of China