徳島都市圏における土地の雨水浸透・貯留機能に着目した洪水災害リスクに関する研究

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  • A Study on the Flood Disaster Risk considering the Infiltration and Storage Function of Rain Water in Tokushima Urban Area

Abstract

The purpose of the study is to evaluate the flood disaster risk considering the rain water infiltration and storage function of land use. I calculated two indexes. One is the surface water caused by the torrential rain of typhoon in 2016. Another is the future elderly household distribution in 2040. Flood disaster risk was evaluated by the number of elderly household on the area with the surface water over 100 mm/h, considering 4 scenarios about land use change. Based on the results of these evaluation, I showed the future land use policy in Tokushima Urban Area.

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