Spatial and temporal variations of water repellency and probability of its occurrence in calcareous Mediterranean rangeland soils affected by fires

Soil water repellency

Auteur(s) et Affiliation(s)

BODÍ, M.B.

SEDER (Soil Erosion and Degradation Research Group), Dept. de Geografia, Univ., València, Espagne

GEA-Grupo de Edafología Ambiental, Dep. de Agroquímica y Medio Ambiente, Univ. Miguel Hernández, Alicante, Espagne

Dept. of Geography, College of Science, Univ., Swansea, Royaume-Uni

MUÑOZ-SANTA, I.

Dept. d'Estadística i Investigació Operativa, Univ. de València, Burjassot, Espagne

ARMERO, C.

Dept. d'Estadística i Investigació Operativa, Univ. de València, Burjassot, Espagne

DOERR, S.H.

Dept. of Geography, College of Science, Univ., Swansea, Royaume-Uni

MATAIX-SOLERA, J.

GEA-Grupo de Edafología Ambiental, Dep. de Agroquímica y Medio Ambiente, Univ. Miguel Hernández, Alicante, Espagne

CERDÀ, A.

SEDER (Soil Erosion and Degradation Research Group), Dept. de Geografia, Univ., València, Espagne

JORDÁN, A.

MED_Soil Research Group, Dep. de Cristalografía, Mineralogía y Química Agrícola, Fac. de Química, Univ., Sevilla, Espagne

ZAVALA, L.M.

MED_Soil Research Group, Dep. de Cristalografía, Mineralogía y Química Agrícola, Fac. de Química, Univ., Sevilla, Espagne

MATAIX-SOLERA, J.

GEA-Grupo de Edafología Ambiental, Dep. de Agroquímica y Medio Ambiente, Univ. Miguel Hernández, Alicante, Espagne

DOERR, S.H.

Geography Dept., Univ., Swansea, Royaume-Uni

Description :
Water repellency (WR) is common in the long unburned Mediterranean calcareous soils (> 20 years) studied. This paper : a) reports on the occurrence and persistence of WR in fire-affected calcareous forest soils under Mediterranean climatic conditions, examining its spatial variability at macro-, meso- and micro-scales, and monthly changes with soil moisture content; and b) develops exploratory models to estimate the probability of the natural background (not fire-induced) WR to occur through a Mixed-Effect Logistic Regression Model. Four sites with comparable soil and vegetation types were studied, all of them burned in 1979, the third again 1999, and the fourth in April 2008. Variability of WR was similarly high within site (1 ha) and at 10 × 10 cm plot-scales. It is concluded that the model derived from straightforward variables is powerful in the context applied here.

Type de document :
Article de monographie

Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 108, p. 14-25, nombre de pages : 12, Références bibliographiques : 1 p.

Date :
2013

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

Langue :
Anglais