Search National Agricultural Library Digital Collections

NALDC Record Details:

A consolidation model for estimating changes in rill erodibility

Permanent URL:
http://handle.nal.usda.gov/10113/7019
File:
Download [PDF File]
Abstract:
Soil erodibility changes with time after tillage. A mathematical model is presented that estimates variations in rill erosion parameters as a function of consolidation. Consolidation is defined as the incrase in soil stability which occurs because of effective stresses in soils. Effective stresses are induced by negative soil water matric potentials that occur during moisture redistribution after rainfall. A method for calculating effective stresses is presented, as well as a relationship for relating effective stress history to changes in rill erosion resistance. An application of the model for field rill erosion of silt loam soil is presented.
Author(s):
Nearing, M.A. , West, L.T. , Brown, L.C.
Note:
Includes references
Source:
Transactions of the ASAE 1988 May-June, v. 31, no. 3
Language:
English
Year:
1988
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.