[Peng, Huijun;Huang, Chiqin] Hengyang Normal Univ, Dept Resources Environm & Tourism Management, Hengyang 421002, Peoples R China.^[Peng, Huijun;Huang, Chiqin;Zeng, Qianyun] Hengyang Normal Univ, Nanyue Coll, Dept Resources Environm & Tourism Management, Hengyang 421002, Peoples R China.