Post-fire evolution of water repellency and aggregate stability in Mediterranean calcareous soils : A 6-year study

Auteur(s) et Affiliation(s)

JORDÁN, A.

Soil research Group, Dpto. de Cristalografía, Mineralogía y Qímica Agrícola, Univ., Sevilla, Espagne

GORDILLO-RIVERO, Á.J.

Soil research Group, Dpto. de Cristalografía, Mineralogía y Qímica Agrícola, Univ., Sevilla, Espagne

GARCÍA-MORENO, J.

Soil research Group, Dpto. de Cristalografía, Mineralogía y Qímica Agrícola, Univ., Sevilla, Espagne

ZAVALA, L.M.

Soil research Group, Dpto. de Cristalografía, Mineralogía y Qímica Agrícola, Univ., Sevilla, Espagne

GRANGED, A.J.P.

Soil Research Group, Dpto. de Física Aplicada I, Escuela Técnica Superior de Ingeniería Agronómica, Univ., Sevilla, Espagne

GIL, J.

Soil Research Group, Dpto. de Química Agrícola y Edafología, Fac. de Ciencias, Univ., Córdoba, Espagne

NETO-PAIXÃO, H.M.

Dpto. de Engenharia Civil, Inst. Superior de Engenharia de faro, Univ. do Algarve, Faro, Portugal

Description :
The AA. study the evolution of soil water repellency (WR) and aggregate stability (AS)during a 6-year period after a wildfire in Mediterranean calcareous loamy to clayey soils from SW Spain. They have investigated 1) the fire-induced changes on soil WR and AS in the medium term (6-year period after burning) and its distribution within aggregate size fractions, 2) the relations between post-fire AS and WR, and 3) the interactions between AS, WR and different factors (site, time since burning, lithology and vegetation type) in Mediterranean calcareous soils. Five areas burned during the summer 2006 in southern Spain were selected for this study in the provinces of Cádiz and Málaga. It is highlighted that water repellency persisted in finer aggregates (0.25–1 mm) after 6 years, and that aggregate stability was not affected severely by moderate-severity burning. Moreover, high soil resilience to low-moderate fire disturbance was observed.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2014, n°. 118, p. 115-123, nombre de pages : 9, Références bibliographiques : 1 p.

Date :
2014

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais