2024 Volume 80 Issue 27 Article ID: 24-27015
The purpose of this study is to compile knowledge that can induce the relationship between the forest aspect, tree species, and slope failure. In order to obtain knowledge, a comparative analysis of the environmental conditions in the mountainous area including the forest types and forest types was attempted with the heavy rainfall that occurred in August 2022. The study consists of a comparative analysis of multiple watersheds using slope failure records and numerical geographic information, and a detailed analysis of watersheds using information obtained from UAVs. The comparative analysis of multiple watersheds showed that slope failures were more frequent in the Quercus distribution area on steeply sloping slopes. The dense watershed analysis revealed that the Quercus serrata distribution area has a mixture of tree species and a large difference in tree height. Slope failures were more likely to occur in areas with large height differences.
