[O-02] Poster presentations by senior high school students

[O02-P23] Restraining effect of vegetation on landslides in residual granite soils and identifying areas at risk

*Miku Nakano¹, *Shota Nakano¹, *Yuto Haneji¹, *Miki Bito¹, Rikuto Fukushima¹, Nao Maeda¹ (1.Hyogo Prefectural Kakogawa Higashi High School)

Keywords:landslide, granite, vegetation

Two years ago, we found that landslides can occur easily above granite bedrock because of its peculiar weathering. We noticed that the frequency of disasters varies depending on local vegetation. Our purpose is to demonstrate how vegetation can reduce damage caused by landslides in residual granite soils and identify areas at risk of landslides. By conducting model experiments we showed Quercus serrata reduces the severity of landslides in residual granite soils. By conducting topological research and vegetation distribution research, we identified areas in northern Kakogawa, Hyogo which are at risk.