Long-term estimate of CO₂ balance considering forestgrowth cycle in promoting the use of construction timber

In this study, we model the estimation of the CO₂ balance throughout the life cycle of construction timber. We study about construction utilization period considering forest-growth and show the long-term estimate of the emission reduction effect. As a result, it was found that CO₂ balance become plus (absorption) using Japanese cedar and cypress in Kochi Prefecture more than 50 years as construction timber. Moreover, as a result of long-term estimate, we show emission reduction effect by increasing the construction timber volume and extending the utilization period.