Modelling effects of forest canopies on slope stability

We investigated the potential effects of rainfall intensity smoothing by forest canopies on slope stability by modelling soil responses to measured rainfall and throughfall during high‐intensity rain. Field measurements showed that maximum intensities of precipitation were generally reduced under fo...

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Bibliographic Details
Published in:Hydrological processes 2003-05, Vol.17 (7), p.1457-1467
Main Authors: Keim, Richard F., Skaugset, Arne E.
Format: Article
Language:English
Subjects:
canopy interception
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
hillslope hydrology
Hydrology
Hydrology. Hydrogeology
infiltration
landslides
Natural hazards: prediction, damages, etc
slope stability
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Summary:We investigated the potential effects of rainfall intensity smoothing by forest canopies on slope stability by modelling soil responses to measured rainfall and throughfall during high‐intensity rain. Field measurements showed that maximum intensities of precipitation were generally reduced under forest canopies at two sites in the Pacific Northwest, USA. Modelling soil water pore‐pressure responses of a hypothetical hillslope to the field data resulted in estimates of slope stability that were generally greater under forest canopy than for the same hillslope without forest canopy. Results indicate that smoothing of precipitation intensities may translate into overall greater stability of hillslopes under forest canopies. Copyright © 2003 John Wiley & Sons, Ltd.
ISSN:0885-6087
1099-1085
DOI:10.1002/hyp.5121