木造建築ストックの代謝プロセスにおける炭素バランスの評価

抄録

In this study we evaluated the carbon balance in a metabolism process of wooden building stock, such as “planting”, “the wood transportation”, “accumulation to a building”, and “incineration” As for the quantity of CO₂ absorption by planting, as for the CO₂ discharge about 22, 000t-CO₂, the wood transportation, it was estimated that some 140, 000t-CO₂ decrease, a CO₂ discharge by incineration were caused by large increase of disposal wood outbreak quantity, and 34, 000t-CO₂, the quantity of CO₂ stock to a carving wood building showed increase of 134, 000t-CO₂ between ten years from 1992. I increased, and it was estimated that they greeted a peak in about 2010, and, in 2007, as for the CO₂ discharge by incineration, 2.5 times were able to estimate imported lumber to be when they cut quantity of annual carbon release by 1.9% reduction by replacing it in domestic production materials.