Shallow Landslide Assessment Considering the Influence of Vegetation Cover

摘要: Many researchers have evaluated the influence of vegetation cover on slope stability. However, due to extensive variety site conditions and types, different studies often provided inconsistent results, especially when evaluating in regions. Therefore, additional need be conducted identify positive impacts for stabilization. This study used Transient Rainfall Infiltration Grid-based Regional Slope-stability Model (TRIGRS) predict occurrence landslides a watershed Jinbu-Myeon, Pyeongchang-gun, Korea. The was assessed by spatially temporally comparing predicted corresponding multiple trials cohesion values (which include role root cohesion) real observed landslide scars back-calculate contribution lower bound defined based fact that there are no unstable cells raster stability map at initial conditions, modified success rate evaluate model performance. In next step, most reliable value representing area applied assessment. analyzed results showed could replaced increasing soil 3.8 kPa. Without considering cover, large studied is unconditionally condition. tree taken into account, produces more realistic with about 76.7% 78.6% stable being well predicted.