About SATO KEN
About 北海学園大学学園論集
About biodiversity
About Hokkaido
About forest
About plant(organism)
About natural forest
About list
About artificial forest
About habitat distribution
About environmental conservation
About red data book
About vascular plant
About gene diversity
About primeval forest
About species diversity
About forest preservation
About endangered plants
About Forest botany
About 北海道
About 森林
About 植物
About 生物多様性保全