Mots-clés
Baleares Bassin-versant Bilan sédimentaire Charge en suspension Cours d'eau Domaine méditerranéen Eau souterraine Elément-trace Espagne Mallorca Pollution Qualité de l'eau Urbanisation Utilisation agricole du sol Agricultural land use Baleares Mallorca Mediterranean area Pollution Sediment budget Spain Stream Suspended load Trace-element Underground water Urbanization Water quality Watershed Agua subterránea Aprovechamiento agrícola del suelo Balance sedimentario Baleares Calidad del agua Campo mediterráneo Carga en suspensión Contaminación Corriente de agua Cuenca hidrográfica Elemento-huella España UrbanizaciónFluxes and storage of fine-grained sediment and associated contaminants in the Na Borges River (Mallorca, Spain)
Auteur(s) et Affiliation(s)
ESTRANY, J.
Dep. of Earth Sciences, Univ. of the Balearic Islands, Palma de Mallorca, Espagne
GARCIA, C.
Dep. of Earth Sciences, Univ. of the Balearic Islands, Palma de Mallorca, Espagne
WALLING, D.E.
Dep. of Geography, College of Life and Environmental Sciences, Univ., Exeter, Royaume-Uni
FERRER, L.
Dep. of Chemistry, Univ. of the Balearic Islands, Palma de Mallorca, Espagne
Description :
Samples of suspended and fine channel bed sediment were used to examine the spatial and temporal variability in the amount of fine-grained sediment and associated contaminants temporarily stored in the Na Borges River in Mallorca and the relationship of such channel storage to the fluxes of fine sediment and associated contaminant through the system. This Mediterranean groundwater-dominated river drains a predominantly agricultural catchment, although urbanisation during the twentieth century has changed the catchment hydrology. A re-suspension technique was used to obtain estimates of channel storage at monthly intervals during the 2004-2005 hydrological year at 8 locations along the main stream. The results demonstrated significant spatial and temporal variability, in response to the influence of urban point sources, agricultural practises, seasonal groundwater interactions and the first-flush effect.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2011, vol. 87, n°. 3, p. 291-305, nombre de pages : 15, Références bibliographiques : 38 ref.
Date :
2011
Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)