CO₂ EMISSION AND ITS ESTIMATION ISSUE OF DOMESTIC AND IMPORTED LUMBER ON MANUFACTURING AND TRANSPORTATION

Abstract

This study describes the environmental impacts of lumber for building construction in Japan, focusing on CO₂ emission. First, we collected the inventory data of several patterns of lumber with domestically-made or foreign-made using a case study approach based on some fieldworks.
Second, we tried to estimate the volume of each and total CO₂ emissions. Finally, we analyzed the issue of estimating method. According to the results, the patterns show obvious differences especially in transportation phase and kiln-drying phase. In addition, the emission coefficients have big influence on the results.