The variability of root cohesion as an influence on shallow landslide susceptibility in the Oregon Coast Range

  title={The variability of root cohesion as an influence on shallow landslide susceptibility in the Oregon Coast Range},
  author={K. M. Schmidt and J. Roering and J. Stock and W. Dietrich and D. Montgomery and Torsten Schaub},
  journal={Canadian Geotechnical Journal},
Decades of quantitative measurement indicate that roots can mechanically reinforce shallow soils in forested landscapes. Forests, however, have variations in vegetation species and age which can dominate the local stability of landslide-initiation sites. To assess the influence of this variability on root cohesion we examined scarps of landslides triggered during large storms in February and November of 1996 in the Oregon Coast Range and hand-dug soil pits on stable ground. At 41 sites we… Expand
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