全国を俯瞰した災害リスク曝露人口分布の分析

―将来の人口減少を考慮した土地利用に向けて―

抄録

Efficient investment of disaster measures is one of the biggest future issues in Japan under the situation that the population in Japan has been decrasing since 2005. In order to discuss ideal strategy for future investiment, it is important to assess population distribution exposed to various natural hazards considering future depopulation. This research aims to analyse population distribution in the whole Japan country exposed to natural hazards by overlaying existing hazard maps such as earthquake, river flood and landslide. In addition, relationship between the population exposure and expected furture depopulation was also analyzed in order to discuss future strategy for national land use and investments for disaster risk reduction.