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(Article of periodic en Anglais - 2000)

Document title

Soil freeze-thaw-induced changes to a simulated rill : potential impacts on soil erosion

Authors(s) and Affiliation(s)

GATTO L.W. ;

Abstract

The objective of this study was to measure the effects of one of the soil processes that affect rill geometry, soil freeze-thaw (FT) cycling. An unvegetated rectangular rill was subjected to 2 FT cycles, each lasting several days, in a controlled laboratory setting. The FT cycling increased the water content and reduced the cohesion in the surface soil along the rill sufficiently to induce soil slumps and mud flows along the sidewalls of the rill. These mass failures changed the rectangular rill to a triangular one. Using Manning's equation, it was estimated that this new geometry could reduce the velocity of the flow

Source

Article of periodic

published at : Geomorphology / ISSN 0169-555X

Editor : Elsevier, Amsterdam - PAYS-BAS (1987)

Millesime : 2000, vol. 32, no1-2 [pp. 147-160]

Bibliographic references : 37 ref.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2001.
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