1. Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Japan
2. Graduate School of Asian and African Area Studies, Kyoto University, Kyoto, Japan
3. Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
4. Graduate School of Agriculture, Kyoto University, Kyoto, Japan
5. Graduate School of Life Science, Tohoku University, Sendai, Japan
6. Field Science Education and Research Center, Kyoto University, Kyoto, Japan
7. Forestry and Forest Products Research Institute, Kumamoto, Japan