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Regenerated situation of non-reforestation area in Gunma Prefecture
Survey of trees damaged by Japanese black bear (Ursus thibetanus) in Gunma prefecture
Year-round culture in the outdoors of several kinds of mushrooms
Planting of young trees of broad-leaved tree in cut-over area
Control test of barking damage by Japanese black bear (Ursus thibetanus)
Functional Evaluation of Sugi soundproofing laminated panel