Specific sediment yield in Tigray-Northern Ethiopia : assessment and semi-quantitative modelling

Auteurs :
HAREGEWEYN, N.
POESEN, J.
NYSSEN, J.
VERSTRAETEN, G.
DE VENTE, J.
GOVERS, G.
DECKERS, S.
MOEYERSONS, J.

Description :
Sediment deposition in reservoirs is a serious off-site consequence of soil erosion in Tigray. Field rating of catchment characteristics and the sediment yield data from the reservoir survey were used for calibration and validation of the models. The reservoir survey indicates that specific sediment yield (SSY) varies significantly between catchments. The AA. evaluate to what extent semi-quantitative tools can predict accurately the SSY and they identify the major factors controlling the SSY.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2005, vol. 69, n°. 1-4, p. 315-331, nombre de pages : 17, Collation : Illustration, Références bibliographiques : 31 ref.

Date :
2005

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier