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| wood production ： ウィキペディア英語版 |
wood production
Timber and wood products are created from trees.
==Harvesting==
Mature trees are harvested from pine plantations and also from native forests. Trees harvested at a younger age can produce smaller logs, which can be turned into lower value products. Factors such as the site and climatic conditions, the species, the growth rate, and silviculture can affect the size of a mature tree.〔http://www.forestlearning.edu.au/australian-forests/wood-production-process/harvesting〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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