2025 Volume 51 Issue 1 Pages 85-90
This study aimed to clarify the initial process of vegetation recovery in revegetation using fallen trees and collapsed soil after shallow landslides (legacy revegetation). The investigation was carried out on a surface landslide slope caused by the 2018 Eastern Iburi Earthquake in Japan, and SEM analysis was conducted using biomass change as the objective variable and the presence of forest floor patches and sandbags, distance from the nearest forest, amount of soil erosion, and frequency of deer appearance as explanatory variables. The analysis showed that the following paths were significant: the prevention of soil erosion on vegetation recovery, and the prevention of soil erosion by preserving forest floor patches and placing sandbags. The results indicate that in the early revegetation using biological legacies of collapsed areas, soil erosion control, rather than deer control, is the priority and that leaving forest floor patches on the slope is effective measure.
