Relationship between Current Forest Operations and Provision of Roads in Private Forests

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We analyzed the relationship between current forest operations and the provision of roads in private forests in a mountain village area, as a basis for improved planning of forest road networks. The study area was Toei district in Aichi prefecture, and the forest operations studied involved the planting and tending (weeding, pruning, cleaning cutting, and thinning) of forests performed by the Forest Owners' Association from 1994 to 1996. Most of the work, both with respect to the number of operations and the area of each operation, involved the thinning and weeding of forest stands. Only a small amount of pruning and planting took place. Over the 3 years, there was little change in the nature of the operations. An analysis of the operations with respect to the access distance from the nearest road for each type of operation each year showed that the proportion of operations decreased as the access distance increased. There were a few discrepancies when the area of operations was considered, but the basic trend was essentially the same. All the different kinds of operations were concentrated within 300m of a road, and the average access distance each year was approximately 210m. This is shorter than the average distance of access across the whole of the forests in Toei, which was about 275m. This means that there are too few forest roads from the perspective of current forest operations. In order to resolve this problem, it is suggested that an additional 6m/ha of forest roads are needed immediately. This would nearly double the current forest road density of 7.0m/ha.
森林計画学会の論文

Relationship between Current Forest Operations and Provision of Roads in Private Forests

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