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Algae influence the hydrophysical parameters of a sandy soil

Soil water repellency

Auteur(s) et Affiliation(s)

LICHNER, L.
Inst. of Hydrology, Slovak Academy of Sciences, Bratislava, Slovaquie
HALLETT, P.D.
The James Hutton Inst., Scotland, Dundee, Royaume-Uni
DRONGOVÁ, Z.
Dept. of Botany, Fac. of Natural Sciences, Comenius Univ., Bratislava, Slovaquie
CZACHOR, H.
Inst. of Agrophysics, Polish Academy of Sciences, Lublin, Pologne
KOVACIK, L.
Dept. of Botany, Fac. of Natural Sciences, Comenius Univ., Bratislava, Slovaquie
GEA-Grupo de Edafología Ambiental, Dep. de Agroquímica y Medio Ambiente, Univ. Miguel Hernández, Alicante, Espagne
HOMOLÁK, M.
Dept. of Natural Environment, Technical Univ., Zvolen, Slovaquie
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
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 :
Biological soil crusts have a major effect on water flow in soils. Two study sites, located at a pine-forest glade covered with a biological soil crust, formed the basis of this study. The sand soil at the surface (Glade soil) was compared to a control soil (Pure sand) with limited impact of vegetation or organic matter, occurring at 50 cm depth beneath a glade area. The hydrophysical parameters were substantially different between the 2 surfaces. The growth of artificial algal crusts resulted in an increase in water drop penetration time (WDPT) of the dried crusts up to 14-times that of the pure sand and a decrease in the water sorptivity of the dried crusts up to 10% that of the pure sand. It is highlighted that water repellency cessation time depends on WDPT and thickness of biological crust.


Type de document :
Article de monographie

Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 108, p. 58-68, nombre de pages : 11, Références bibliographiques : 1 p.

Date :
2013

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

Langue :
Anglais
Droits :
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