THE EVALUATION OF THE CARBON BALANCE IN A METABOLISM PROCESS OF WOODEN BUILDING STOCK

Abstract

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.