Spatial variability of hydrophysical properties of fallow sandy soils
2015
Sandor, Renata | Lichner, Lubomir | Filep, Tibor | Balog, Kitti | Lehoczky, Eva | Fodor, Nandor | Unité de recherche sur l'Ecosystème Prairial (UREP) ; Institut National de la Recherche Agronomique (INRA) | Centre for Agricultural Research ; Partenaires INRAE | Slovak Acad Sci, Inst Hydrol, SK-83102 Bratislava, Slovakia ; Partenaires INRAE | Hungarian Acad Sci, Inst Soil Sci & Agr Chem, Agr Res Ctr, Herman Otto Str 15, H-1022 Budapest, Hungary ; Partenaires INRAE | Hungarian Acad Sci, Inst Agr, Agr Res Ctr, H-2462 Martonvasar, Hungary ; Partenaires INRAE
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Show more [+] Less [-]English. Spatial heterogeneity of soil hydrophysical properties was estimated in 2 fallow sandy soils at Csolyospalos and Orbottyan, Hungary. Significant differences in small particle (= silt + clay) content (5.0% vs. 13.7%), organic matter content (1.62% vs. 0.91%), and CaCO3 content (3.1% vs. 5.1%) measured at Csolyospalos and Orbottyan, respectively, resulted in a higher persistence of water repellency in the Csolyospalos soil. It also resulted in a significantly higher water sorptivity and hydraulic conductivity of the Orbottyan soil. The spatial heterogeneity of soil hydrophysical properties was significant reaching 3 orders of magnitude differences due to the variances of soil properties. The water repellency cessation time was inversely related to the hydraulic conductivity and water sorptivity at Csolyospalos site.
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