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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Distributed modelling of mean annual soil erosion and sediment delivery rates to surface waters

Scales in soil erosion

Auteur(s) et Affiliation(s)

TETZLAFF, B.
Forschungszentrum Jülich GmbH, Agrosphere Inst. (IBG-3), Jülich, Allemagne
FRIEDRICH, K.
Hessian Agency for the Environment and Geology, Dept. for Soil Protection and Soil Information, Wiesbaden, Allemagne
Hessian Agency for the Environment and Geology, Dept. for Soil Protection and Soil Information, Wiesbaden, Allemagne
VEREECKEN, H.
Forschungszentrum Jülich GmbH, Agrosphere Inst. (IBG-3), Jülich, Allemagne
WENDLAND, F.
Forschungszentrum Jülich GmbH, Agrosphere Inst. (IBG-3), Jülich, Allemagne
CERDÀ, A.
Soil Erosion and Degradation Research Group (SEDER), Dept. de Geografia, Univ., Valencia, Espagne
BRAZIER, R.
Geography, College of Life and Environmental Sciences, Univ., Exeter, Royaume-Uni
NEARING, M.
USDA-ARS Southwest Watershed Research Center, AZ, Tucson, Etats-Unis
DE VENTE, J.
Estación Experimental de Zonas Áridas, Consejo Sup. de Investigaciones Científicas (EEZA-CSIC), Desertification and Geoecology Dept., Almeria, Espagne


Description :
The aim of this study was to identify parcels which are severely affected by water erosion and to identify areas at risk for sediment input to surface waters. For this purpose, the ABAG, an adaption of the USLE approach to German conditions, has been employed with the best available data sets on K-, C-, R- and LS-factors. Model results show that soil losses in Hesse vary between 0.5 and 15 tonnes/(ha.year). The mean loss amounts and the sediment delivery ratios for sub-catchments are also evaluated. Uncertainty analyses reveal an overall error of 34 % of the model results and outline the contribution of each input data set. The findings from this study are used for policy support in the field of soil and water resources management.


Type de document :
Article de monographie

Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 102, p. 13-20, nombre de pages : 8, Références bibliographiques : 28 ref.

Date :
2013

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais
Droits :
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