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(Article of periodic en Anglais - 2013)

Document title

Interrill erosion in soils with different land uses : The kinetic energy wetting effect on temporal particle size distribution

Authors(s) and Affiliation(s)

RIENZI E.A. (1) ; FOX J.F. (2) ; GROVE J.H. (1) ; MATOCHA C.J. (1) ;
(1) College of Agriculture, Plant and Soil Sciences, Univ. of Kentucky, ETATS-UNIS
(2) College of Engineering, Civil Engineering, Univ. of Kentucky, ETATS-UNIS

Abstract

The AA. aim to determine the effects of different wetting rates on the runoff rate, temporal sediment particle size distribution (PSD), and sediment delivery rate produced via interrill erosion in low slopes under 2 contrasting tillage systems. Selected sites in Kentucky were under continuous corn rotations on Maury silt loam (Typic Paleudalf) or corn/soybean on Calloway silt (Aquic Fragiudult), both under either moldboard plow (MT) or no-till (NT) soil management. A nozzle-type rain simulator was used. Soil texture and aggregate stability were more important than overland flow in modifying the temporal PSD. Transport capacity appears to be diminished due to soil cover, making all predictions based on settling velocity ineffective. High kinetic energy wetting (HKE) increases both the total and temporal sediment delivery rate (Di) values. Observed differences in Di were consequences not of particle size but of the number of particles released

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2013, vol. 107 [pp. 130-138]

Bibliographic references : 1 p.

Collation : 6 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2013.02.007

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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