(Article of periodic en Anglais - 2011)

Document title

Sedimentation source identification in a semiarid watershed at soil mapping unit scales

Authors(s) and Affiliation(s)

RHOTON F.E. (1) ; EMMERICH W.E. (2) ; NEARING M.A. (2) ; MCCHESNEY D.S. (1) ; RITCHIE J.C. (3) ;
(1) USDA-ARS National Sedimentation Lab., MS, Oxford, ETATS-UNIS
(2) USDA-ARS Southwest Watershed Research Center, AZ, Tucson, ETATS-UNIS
(3) USDA-ARS, Hydrology and Remote Sensing Lab., Beltsville, ETATS-UNIS


The aim of this research was to develop an approach to identify sediment sources at a soil mapping unit scale for the purpose of designing site specific best management practices which affect greater reductions in runoff and erosion losses. This study was conducted in the Walnut Gulch Experimental Watershed. It was accomplished by using specific clay enrichment ratio data as indicators of sediment delivery in combination with a sediment yield index determined form measured aggregation index (erodibility) data weighted on the basis of relative area occupied by a given soil mapping unit. The results support the accuracy of a potential sediment yield index approach for identifying suspended sediment sources at soil mapping unit scales


Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2011, vol. 87, no2 [pp. 172-181]

Bibliographic references : 37 ref.

Collation : 3 fig., 10 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.05.002

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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