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(Article of periodic en Anglais - 2009)

Document title

Fire-induced soil water repellency under different vegetation types along the Atlantic dune coast-line in SW Spain

Authors(s) and Affiliation(s)

ZAVALA L.M. (1) ; GONZÁLEZ F.A. (1) ; JORDÁN A. (1) ;
(1) MEDsoil Researchb Group, Dep. Cristalografía, Mineralogía y Química Agrícola, Fac. Química, Univ., Sevilla, ESPAGNE

Abstract

The distribution and variation with soil depth of water repellency has been studied in fire-affected sand dunes under 3 different vegetation types (pine forest, shrubland and sparse herbaceous vegetation) in the Doñana Natural Park. The persistence and intensity of water repellency at the exposed surface of soil was measured using the water drop penetration time test ans the contact angle method, respectively, in surface samples collected at burned and unburned areas. None or slight soil water repellency was observed at unburned soil sites, whereas burned soil sites showed a high degree of repellency , especially under pines and shrubland. Soil water repellency was generally higher at the soil surface, and decreased with depth. The heterogeneity of moisture patterns under dense pine forests or shrublands showed the existence of wetting and water repellent three-dimensional soil patches

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2009, vol. 79, no2 [pp. 153-162]

Bibliographic references : 1 p.

Collation : 7 fig., 6 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2009.07.002

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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