English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/16207
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Campo DC Valor Lengua/Idioma
dc.contributor.authorArnau Rosalén, Eva-
dc.contributor.authorCalvo-Cases, Adolfo-
dc.contributor.authorBoix-Fayos, Carolina-
dc.contributor.authorLavee, H.-
dc.contributor.authorSarah, P.-
dc.identifier.citationGeomorphology 101(4): 595-606 (2008)en_US
dc.description.abstractSpatial patterns of soil surface components (vegetation, rock fragments, crusts, bedrock outcrops, etc.) are a key factor determining hydrological functioning of hillslopes. A methodological approach to analyse the patterns of soil surface components at a detailed scale is proposed in this paper. The methods proposed are applied to two contrasting semi-arid Mediterranean hillslopes, and the influence of soil surface component patterns on the runoff response of the slopes was analysed. A soil surface components map was derived from a high resolution photo-mosaic obtained in the field by means of a digital camera. Rainfall simulation experimental data were used to characterise the hydrological behaviour of areas with a specific pattern of soil surface components by means of the parameters of the Horton equation. Plot runoff data were extrapolated at the hillslope scale based on the soil surface component maps and their hydrological characterisation. The results show that in both slopes runoff generation is concentrated up- and downslope, with a water accepting area in the centre of both slopes disrupting the hydrological connectivity at the slope scale. This reinfiltration patch at the centre of the slope is related to the type of soil surface component and its spatial pattern. Herbaceous vegetation and ‘on top rock fragments’ increase the infiltration capacity of soils at the centre of the slope. In contrast, embedded rock fragments, rock outcrops, as well as crusted surfaces located in the upper and lower slopes favour runoff generation in these areas. In addition, a general pattern of water contribution areas downslope is apparent on both slopes. The south-facing slope shows a higher hydrological connectivity and more runoff. 55% of the surface of the south-facing slope produces runoff at the end of a 1 hour rainfall event and 17.3% of the surface is covered by a runoff depth between 0.5 and 1 mm. While on the north-facing slope only 38% of the surface produces runoff under the same conditions. Longitudinal connectivity of runoff is higher at the south-facing slope where more runoff-generating surfaces appear and where the vegetation pattern favours the connectivity of bare areas.en_US
dc.description.sponsorshipThe work reported here forms part of the project REN2003-04570/GLO del Plan Nacional de I+D+I and a research grant provided by the Fundación Mapfre and the Servicio de Seguridad, Salud y Calidad Ambiental of the Universitat de València. C. Boix-Fayos was financially supported by a Ramón y Cajal contract from the Spanish Science and Education Ministry.en_US
dc.format.extent579917 bytes-
dc.subjectSoil surface componentsen_US
dc.subjectRunoff generationen_US
dc.subjectHillslope processesen_US
dc.titleAnalysis of soil surface component patterns affecting runoff generation. An example of methods applied to Mediterranean hillslopes in Alicante (Spain)en_US
dc.description.peerreviewedPeer revieweden_US
dc.contributor.funderComisión Interministerial de Ciencia y Tecnología, CICYT (España)-
dc.contributor.funderFundación Mapfre-
dc.contributor.funderUniversidad de Valencia-
dc.contributor.funderMinisterio de Educación y Ciencia (España)-
Aparece en las colecciones: (CEBAS) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Show simple item record

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.