抄録
In the current wood price for large-scale sawmill of red pine in the Nagano prefecture there are estimates and are difficult supply of wood. In Kamiina region are traded red pine as firewood, increase of yield improvement and income of timber production can be expected by harvesting unused resources. Therefore, the purpose of this study is that an increase in income from distribution of firewood is to clarify whether an impact on timber production. The amount of timber extractable was the volume that can be produced from forests occurs gross profit from the difference between production costs and timber and firewood sales income. The resulted which allows the timber supply to large sawmill in obtaining the sales income of the firewood.
