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(Article of periodic en Anglais - 2012)

Document title

Effects of soil physical data sources on discharge and soil loss simulated by the LISEM model

Authors(s) and Affiliation(s)

KVÆRNØ S.H. (1) ; STOLTE J. (1) ;
(1) Norwegian Inst. for Agricultural and Environmental Research, Soil and Environment Div., Ås, NORVEGE

Abstract

The aim of this study was to quantify the uncertainty in catchment surface runoff and erosion predicted by the physically based model LISEM (Limburg Soil Erosion Model), as influenced by uncertainty in soil texture and SOM (soil organic matter) content, and the pedotransfer function derived soil water retention curve, hydraulic conductivity, aggregate stability and cohesion. LISEM was first calibrated using measured data in a sub-catchment, and then run for the whole catchment for a summer storm event with basic input data from two data sources : soil series specific generic data from the national soil survey database, and measured data collected in a grid within the catchment. The model was run both for a low risk situation (crop covered surface) and a high risk situation (without crop cover and with reduced aggregate stability and cohesion). the results suggested that inadequate choice of input data source can significantly affect general soil loss and the effect of measures

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2012, vol. 97 [pp. 137-149]

Bibliographic references : 52 ref.

Collation : 9 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.05.001

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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