THE BIOMASS ENERGY UTILIZATION OF THE TIMBER OFFCUTS BASED ON THE PREMISE OF CARBON OFFSET IN NAGANO PREFECTURE

In the production of wood, the trees which are not suitable for lumber such as thin and warped trees are left in the forest as thinnings. The woody biomass energy is considered as one of the way to use the timber offcuts. In this thesis, the abundance of the woody biomass and the amount of carbon stock are calculated according to the survey of the felling records of national and private forest areas, in the Chubu Sangaku area of Nagano prefecture. Following results were obtained by researches.