3-P91-1 Woody biomass of small forests in urban regeneration areas in the recycling : Proposal of heat utilization by firewood and Tosa forest×Sanmu system of overhead wires light harvesting method

Abstract

Sanmu-shi, Chiba Prefecture, used to be a prosperous region based on its forestry industry and was widely known for its cedar trees branded as sanbu-sugi. A combination of the aging labor population, the stagnant price of timber and the spread of disease that is typical to sanbu-sugi resulted in the devastation of the forests, which now requires immediate measures. Now, neglect of thinner timber etc. is remarkable in the forest in sanmu-shi. Care of a forest is urged to such wood by finding out the utility value as firewood, and it tries to aim at reproduction of a forest as a result.