Mots-clés
Accumulation fluviatile Bassin-versant Bilan sédimentaire Capacité de charge Charge en suspension Domaine méditerranéen Ebro Erodabilité Erosion des sols Espagne Montagne Pyrénées Carrying capacity Ebro Erodibility Fluvial deposit Mediterranean area Mountain Pyrénées Sediment budget Soil erosion Spain Suspended load Watershed Acumulación fluviátil Balance sedimentario Campo mediterráneo Capacidad de carga Carga en suspensión Cuenca hidrográfica Ebro Erodabilidad Erosión de los suelos España Montaña PirineosIn-channel sediment storage in a highly erodible catchment: the River Isábena (Ebro Basin, Southern Pyrenees)
Auteur(s) et Affiliation(s)
LÓPEZ-TARAZÓN, J.A.
Dep. of Environment and Soil Sciences, Univ., Lleida, Espagne
BATALLA, R.J.
Dep. of Environment and Soil Sciences, Univ., Lleida, Espagne
Forest Technology Centre of Catalonia, Lleida, Espagne
VERICAT, D.
Forest Technology Centre of Catalonia, Lleida, Espagne
Inst. of Geography and Earth Sciences, Aberystwyth Univ., Solsona, Espagne
Description :
In-channel sediment storage has been studied in a ∼3-km channel length reach of the River Isábena during an average hydrological year (2007-2008). This river is located at the Southern Pyrenees and the channel network flows through an area of extremely erodible materials producing an enormous amount of suspended sediment. Sediment storage values obtained in the study reach have been extrapolated to the whole main channel. In-channel storage shows both temporal and spatial trends. In relation to the former, sediment is continuously accumulated during low-flows while the latter shows that sediment accumulation increases in the downstream direction. Results suggest that the fine-grained sediment stored in the channel may represent an important component of the suspended sediment budget of rivers draining highly erodible materials such as the River Isábena.
Type de document :
Article de périodique
Source :
Zeitschrift für Geomorphologie, issn : 0372-8854, 2011, vol. 55, n°. 3, p. 365-382, nombre de pages : 18, Références bibliographiques : 33 ref.
Date :
2011
Editeur :
Pays édition : Allemagne, Stuttgart, Gebruder Borntraeger
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)