1. Department of Forest and Forest Products Sciences, Graduate School of Bioresources and Bioenvironmental Sciences, Kyushu University, 394 Tsubakuro, Sasaguri Fukuoka 811-2415, Japan
2. Department of Environmental Security System, Faculty of Risk and Crisis Management, Chiba Institute of Science, Chiba, Japan
3. Department of Forest and Forest Products Sciences, Faculty of Agriculture, Kyushu University, Sasaguri, Japan
4. Department of Environmental Biology and Chemistry, Toyama University, Toyama, Japan
5. Department of Social and Environmental Studies, Fukuoka Institute of Technology, Fukuoka, Japan