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Sediment delivery on rill and interrill areas

Gilley, J.E. and Kincaid, D.C. and Elliot, W.J. and Laflen, J.M. (1993) Sediment delivery on rill and interrill areas. Journal of Hydrology. 140:313-341.


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Equations which relate sediment delivery to a power function of flow rate and slope gradient were evaluated in this study. The data used to parameterize the equations were obtained from sites where crop residues had been removed, and moldboard plowing and disking had occurred. Measurements of sediment delivery resulting from simulated rainfall were obtained from preformed rills and interrill areas. The equations provided reliable sediment delivery estimates for selected soils located throughout the United States. To use the sediment delivery equations, soil-related parameter values must be identified. Multiple regression analyses were performed to relate parameter values used in the equations to selected soil properties. Equations were also developed for estimating rill sediment delivery under rainfall conditions from rill soil loss and discharge data collected without the addition of rainfall. The equations identified in this study, and appropriate soils information, can be used to predict sediment delivery on both rill and interrill areas.

Item Type: Article
NWISRL Publication Number: 0785
Subjects: Irrigation > Furrow irrigation > Runoff losses > Sediment
Mass Import - autoclassified (may be erroneous)
Depositing User: Dan Stieneke
Date Deposited: 20 Nov 2010 21:53
Last Modified: 01 Dec 2016 22:32
Item ID: 587

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