1. Graduate School of Integrated Sciences for Global Society, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
2. School of Environmental and Resources Science, Zhejiang A & F University, Hangzhou 311300, China
3. Zhejiang Forest Resources Monitoring Center, Hangzhou 310020, China
4. School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, China
5. Faculty of Social and Cultural Studies, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan