HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Sharma, P. P. Articles by Foster, G. R. Search for Related Content PubMed Articles by Sharma, P. P. Articles by Foster, G. R. Agricola Articles by Sharma, P. P. Articles by Foster, G. R.

Predicting Soil Detachment by Raindrops

Land Reclamation Research Center, North Dakota State Univ., P.O. Box 459, Mandan, ND 58554

S. C. Gupta

Dep. of Soil Science, Univ. of Minnesota, St. Paul, MN 55108

G. R. Foster

USDA-ARS Sedimentation Lab., P.O. Box 1157, Oxford, MS 38655

*Corresponding author.

ABSTRACT

The process of soil erosion by water across a landscape is modeled by mathematically linking the subprocesses of detachment, transport, and deposition of sediments. Contemporary soil erosion models represent the raindrop detachment rate as a nonlinear function of rainfall intensity, the parameters of which have to be experimentally derived from interrill erosion plot data. We describe a model that predicts the rate of soil detachment by multiple raindrops impacting on a bare soil surface. The model depends on parameters of a soil-strength-dependent single-drop detachment model and a bivariate raindrop-size distribution function. The simulated data is analyzed to represent raindrop detachment rate as a linear and a nonlinear function of intensity. Equations that relate the parameters of soil detachment rate vs. intensity functions to the parameters of the single-drop detachment model are presented.

Contribution from the Minnesota Agric. Exp. Stn., Dep. of Soil Science, Univ. of Minnesota, Scientific Journal Series, Paper no. 19620.

Received for publication December 3, 1991.

This article has been cited by other articles:

				W. M. Cornelis, G. Oltenfreiter, D. Gabriels, and R. Hartmann Splash-Saltation of Sand due to Wind-Driven Rain: Vertical Deposition Flux and Sediment Transport Rate Soil Sci. Soc. Am. J., January 1, 2004; 68(1): 32 - 40. [Abstract] [Full Text] [PDF]

				G.-h. Zhang, B.-y. Liu, G.-b. Liu, X.-w. He, and M. A. Nearing Detachment of Undisturbed Soil by Shallow Flow Soil Sci. Soc. Am. J., May 1, 2003; 67(3): 713 - 719. [Abstract] [Full Text] [PDF]

				R.M. Cruse, B.E. Berghoefer, C.W. Mize, and M. Ghaffarzadeh Water Drop Impact Angle and Soybean Protein Amendment Effects on Soil Detachment Soil Sci. Soc. Am. J., July 1, 2000; 64(4): 1474 - 1478. [Abstract] [Full Text]