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In this study, we have estimated the amount of carbon (C) fixation in wooden materials used for residence house units in Japan and Korea. This type of C fixation might be helpful to prevent the global... warming. In year 2000, the amount of C fixation in the wooden materials was approximately 7.3% (150 million C ton) of total forest C accumulation in Japan, whereas in Korea, it was 2.0% (4.3million C ton) of the total forest C accumulation. The reason is that structural types of the house units on wood utilization in Japan and Korea are clearly different. Japanese have used 90% of wooden materials for their residence houses but Korean house units have built mostly using non-wooden materials such as concrete, bricks, and stones. It has resulted that the number of total houses in Japan is 5 times higher than that in Korea, whereas the amount of C fixed by the wood materials in Japanese house units in 35 times higher than in Korean's. Therefore, to improve C fixation, it might be necessary to increase wooden residence houses and use of the wooden interior or exterior materials in the residence houses, especially in Korea.続きを見る
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