Distribution d'un élément trace (Cr) dans un sol développé sur roches métamorphiques : variabilité à l'échelle d'un versantDistribution of chromium in soils developed into metamorphic rocks: variability at the hillslope scale |
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| Authors: | Sébastien Salvador-Blanes Sophie Cornu Dominique King |
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| Institution: | 1. Inra, Unité de science du sol, centre de recherches d''Orléans, av. de la Pomme-de-Pin, BP 20619, 45166 Olivet cedex, France;2. Laboratoire de géologie des environnements aquatiques continentaux, faculté des sciences et techniques, Parc de Grandmont, 37200 Tours, France |
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| Abstract: | The influence of pedogenetic factors onto spatial variability of chromium in soil surface horizon was studied in a metamorphic area (Massif Central, France) at the hillside scale. A grid survey was performed. Surface soil horizons were sampled at each point and analysed in Cr. Results show the determinant influence of the rock type on Cr content distribution along the slope. However, surface horizons of these soils exhibit a lower Cr content heterogeneity than the deeper horizons. This was explained by soils' material erosion and deposition along the slope. Tillage and hedges also influence the Cr distribution in surface horizon along the slope. To cite this article: S. Salvador-Blanes et al., C. R. Geoscience 334 (2002) 51–58 |
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| Keywords: | chromium soils spatial variability metamorphism parent material erosion farming practices chrome sols variabilité spatiale métamorphisme matériau parental érosion pratiques agricoles Géosciences de surface Pédologie Surface Geosciences Pedology |
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