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The purpose of this study is to clarify that the carbon dioxide fixed to wooden houses. Along with the revision of the CO2 emissions calculation method, carbon storage effect of the Harvested wooden product (HWP) came to be considered. The wooden houses account for a big ratio in HWP. We estimated the changes for the numbers of wooden houses in The Japanese Alps Area that consist of Gifu and Nagano. As a result, it was estimated that the amount of wooden houses in The Japanese Alps Area continued decreasing for the next 30 years. And also the carbon fixed to wooden houses is decreasing. Reduction of carbon storage effect can be suppressed by raising domestic lumber utilization ratio. Therefore we estimated the carbon storage effect of wooden house in the case of domestic lumber utilization increased. When domestic lumber utilization increased, the quantity of carbon storage in Gifu prefecture and Nagano prefecture is increased.

VERIFICATION OF CARBON STORAGE EFFECT OF WOODEN HOUSES IN THE JAPANESE ALPS AREA USING THE STATISTICAL METHOD