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Étude et prédiction des propriétés de rétention en eau des sols : Prise en compte de la composition et de l'état structural du sol

Abstract : Water retention properties and their relation with the soil characteristics were discussed in numerous studies during the last thirty years. The objective of this study was to compare the validity of pedotransfer functions (PTFs) established with French soils, with the validity of those developed at the scale of Europe. Results showed that PTFs established with French soils lead to better performance than those established at the European scale when applied to French soils. The showed also for French soils that class-PTfs based on texture classes (texture class-PTFs) or both texture and bulk density classes (texturostructural class-PTFs) led to better performance than much more elaborated PTFs that requires much more information on soil characteristics than the class-PTFs studied. Prediction of water retention properties was shown significantly improved with the in situ volumetric water content at field capacity was used as predictor by class of texture. Finally, water retention properties of clay soils were discussed according to their structure at the scale of the elementary particles assemblage (assemblage of clay particle). Results showed that the water retention properties can be explained by differences of clay content and fabric.
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https://tel.archives-ouvertes.fr/tel-00286622
Contributor : Nathalie Pothier <>
Submitted on : Tuesday, June 10, 2008 - 10:28:09 AM
Last modification on : Wednesday, September 25, 2019 - 2:56:01 PM
Long-term archiving on: : Friday, May 28, 2010 - 7:06:58 PM

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  • HAL Id : tel-00286622, version 1

Citation

Hassan Al Majou. Étude et prédiction des propriétés de rétention en eau des sols : Prise en compte de la composition et de l'état structural du sol. Sciences de la Terre. Université d'Orléans, 2008. Français. ⟨tel-00286622⟩

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