Journal article
A theoretical model of the effects of timber harvesting on slope stability
Water Resources Research, Vol.28(7), pp.1897-1910
1992
Abstract
An infinite slope stability model is proposed which incorporates changes in root cohesion and vegetation surcharge through several timber management cycles along with the stochastic influence of rainfall on pore water pressure. Recovery of rooting strength and tree surcharge following timber harvest are simulated by a sigmoid relationship, while root deterioration of harvested vegetation is described by an exponential decay function. The effects of long-term timber management on probability of failure are simulated by overlaying the impacts of a prior vegetation removal on a more recent removal. An empirical function relating piezometric level to antecedent rainfall, storm intensity, and total precipitation is presented to assess the probability of occurrence failure, based on historical rainfall records for a site in coastal Alaska. -from Author
Details
- Title
- A theoretical model of the effects of timber harvesting on slope stability
- Authors
- Roy C Sidle (Author) - United States Department of Agriculture
- Publication details
- Water Resources Research, Vol.28(7), pp.1897-1910
- Publisher
- Wiley-Blackwell Publishing Inc.
- Date published
- 1992
- DOI
- 10.1029/92WR00804
- ISSN
- 0043-1397
- Organisation Unit
- University of the Sunshine Coast, Queensland; Sustainability Research Cluster
- Language
- English
- Record Identifier
- 99449368602621
- Output Type
- Journal article
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