Products from forests. Timber is the most representative and is broadly divided into firewood, charcoal, and specialty forest products. Timber is divided into general-purpose timber, pulp and chip timber, plywood timber, pit timber, sleepers, etc. Japan's total demand is 113.24 million m3 , of which 47.5% is for sawn timber, 36.5% for pulp and chip, 12.8% for plywood, and 3.2% for other uses. Pit timber, sleepers, etc. tend to be replaced by non-wood substitutes. Domestic timber accounts for only about a quarter of the total general-purpose timber supply, far surpassing imported timber. Specialty forest products include edible nuts, mushrooms, bark, oils and fats, and bamboo, with shiitake mushrooms taking up a representative position. (→ Forest Products ) Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
森林からの生産物。用材を代表とし,薪炭材,特殊林産物に大別される。用材は一般用材,パルプ・チップ用材,合板用材,坑木,枕木などに区分される。日本の総需要量は1億 1324万m3で,製材用が 47.5%,パルプ・チップ用が 36.5%,合単板用 12.8%,その他 3.2%となっており,坑木,枕木などは非木質代替品に代る傾向が強い。一般用材供給量のうち国産材の割合は,全体の約四分の一程度と外材に圧倒されている。特殊林産物は食用樹実,きのこ,樹皮,油脂,竹材のうち,しいたけが代表的な地位を占めている。 (→林産製品 )
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