1. FFPRI. (2000) Research today No.88, <https://www.ffpri.affrc.go.jp/labs/kouho/mori/mori-88.html> (Accessed 22, November, 2017).
2. Forestry Agency. (1991) Study reports on forest development standards and evaluation measurement (Evaluation method for forest development standards)*, Forest Agency, Tokyo (in Japanese).
3. Forestry Agency. (2007) Protection forest system, <http://www.rinya.maff.go.jp/j/tisan/tisan/con\_2.html> (Accessed 22, November, 2017) (in Japanese).
4. Hirose, Y. (2014) Introduction of local level indicators in sustainable forest management, Mie Uni versity: 49pp (in Japanese).
5. Hokkaido (2006) Forest function evaluation criteria (Hokkaido), <http://www.pref.hokkaido.lg.jp/sr/s rk/hyouka/standard/index.htm> (Accessed 22, November, 2017) (in Japanese).