Logging systems and amount of emergence of logging residues
2006
Nakazawa, M.(Tokyo Univ. of Agriculture and Technology, Fuchu (Japan)) | Iwaoka, M. | Minematsu, H. | Ozawa, M.
We analyzed the variation in production of logging residues based on logging systems, by examining data on logging by forestry enterprises in Yamanashi prefecture for the past five years. At present, 1/2 of the cut volume, including stems and shoots is transported to timber markets, and only 1/6 of that occurred as logging residue in wood yards, where it was easier to collect residues than in forests from an economic standpoint, due to the different logging systems and low-quality timber. The whole cut volume including stems and shoots had a positive proportional relation with that for timber production, regardless of the logging systems, and also had a relation with that for logging residue in wood yards if limited to whole tree harvesting. It is would be desirable to sift to operational systems that can use logging residue as woody biomass energy. Whole tree harvesting by forestry machinery would be recommended, and up to 2/5 of the whole cut volume would be expected to end up as logging residue in wood yards.
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