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(Article of periodic en Anglais - 2014)

Document title

Measured hillslope erosion rates in the wet-dry tropics of Cape York, northern Australia : Part 2, RUSLE-based modeling significantly over-predicts hillslope sediment production

Authors(s) and Affiliation(s)

BROOKS A. (1) ; SPENCER J. (1) ; BOROMBOVITS D. (1) ; PIETSCH T. (1) ; OLLEY J. (1) ;
(1) Australian Rivers Inst., Griffith Univ., Queensland, Nathan, AUSTRALIE

Abstract

The AA. present data from erosion plots in the Normanby catchment, Cape York, Australia. Extremely high rates of hillslope erosion are predicted in areas of the Normanby, producing extremely high modeled suspended sediment loads in streams which drain into the Great Barrier Reef (GBR) Lagoon. Using a novel, low budget sediment trap, total sediment yield is measured across the annual wet season (November to April) in 11 plots. These data are compared with the Revised Universal Soil Loss Equation (RUSLE) modeled sediment yields determined for the same sites, for the same periods of time, using 5 different model formulations. It is highlighted that the RUSLE model data for the same areas over-predict yields 1–4 orders of magnitude. Over-prediction of the RUSLE C factor can explain some of the variance (4–5 fold). However, most of the variance is explained by problems with the K factor

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2014, no122 [pp. 1-17]

Bibliographic references : 1 p.

Collation : 12 fig., 5 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2014.06.002

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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