About KATSUSHIMA TAKAFUMI
About 森林総合研究所十日町試験地
About snow damage
About snow accretion
About morphology(form)
About structural mechanics
About forest damage
About afforestation
About snow damage
About tree form
About 樹木力学
About forest land management
About Forest tending
About Natural disasters
About 冠雪害
About 着雪
About 現象
About 樹木
About 力学