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Table 1. Annual potential amount of woody biomass in Japan on a dry-weight basis.1 Reprinted from Biomass and Bioenergy, 29(5), Yoshioka et al., Woody biomass resources and conversion in Japan: The current situation and projections to 2010 and 2050, 336–346, Copyright (2005), with permission from Elsevier.

1The annual potential amount here is based on studies by Harada (2000) and Honda (1986).
2Including thinned trees that are left in forests because the logging costs are higher than the timber price.
3Cutting forests which should have been thinned at the thinning rate of 20%.
4Cutting broad-leaved forests (excluding the forests for logs and bed-logs for shiitake mushroom production) less than 500 m from forest roads with the cutting cycle of 30 years.
5Harvesting 30% of the annual amount of 1.0 Tg/y on a dry-weight basis.
6Harvesting the grass less than a certain distance from forest roads.
7Covering all of the wood industries.
8Consisting of demolition woods, wastes from new construction, and old materials of pallets and packages.
9Net primary production of the park, roadside, and garden trees.

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