Research Article
Feb 1975
Effects of Deforestation of Slopes
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VIEW THE REPLYAuthors: Colin B. Brown, M.ASCE, and Maw S. SheuAuthor Affiliations
Publication: Journal of the Geotechnical Engineering Division
Volume 101, Issue 2
Abstract
The creep and stability of slopes before and after logging have been analyzed. The following effects of vegetation were included in the theory: (1) The root system provides mechanical reinforcement of the soil; (2) vegetation provides a vertical surcharge; (3) wind in trees causes surface shears and moments; and (4) soil moistures content and water level are modified. It has been found that immediately after log removal the reduction in the overburden decreases the creep rate. Also, this reduction and the drop in wind loading increases the slope stability. The immediate effect of deforestation is, therefore, favorable, but adverse effects become evident when the root system decays and when a drop in evapotranspiration causes a rise in the water table.
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Published In
Journal of the Geotechnical Engineering Division
Volume 101 • Issue 2 • February 1975
Pages: 147 - 165
Copyright
© 1975 American Society of Civil Engineers.
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Published in print: Feb 1975
Published online: Feb 10, 2021
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Colin B. Brown, M.ASCE
Prof., Dept. of Civ. Engrg., Univ. of Washington, Seattle, Wash
Maw S. Sheu
Grad. Student, Dept. of Civ. Engrg., Univ. of Washington, Seattle, Wash
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