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Lateral differentiation of Albeluvisols under the impact of subsurface drainage

Abstract : Albeluvisols are temporarily waterlogged due to the argillic horizon that limits downward movement of rainfall water. These soils are hence frequently drained for cropping. Drainage modifies water movement in both direction and velocity, inducing a gradient in waterlogging conditions perpendicularly to the drain. Over time, it may induce a lateral differentiation of the soil solid phase with the distance from the drain. This study aims at characterising and quantifying this differentiation. Albeluvisols are characterised by the following horizon succession: A, Eg&BT, BTgd. The two last horizons exhibit a complex juxtaposition of white-grey, ochre and pale-brown volumes, and numerous black concretions or impregnations. In order to study the impact of drainage on the evolution of such soils, we have to characterise the soil differentiation perpendicularly to the drain by quantifying changes in the quality and the abundance of the different pedological volumes.
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https://hal-insu.archives-ouvertes.fr/hal-00089169
Contributor : Nathalie Pothier <>
Submitted on : Friday, August 11, 2006 - 9:24:19 AM
Last modification on : Thursday, July 2, 2020 - 4:54:04 PM
Long-term archiving on: : Tuesday, April 6, 2010 - 12:34:28 AM

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  • HAL Id : hal-00089169, version 1
  • PRODINRA : 250041

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Citation

David Montagne, Sophie Cornu, O. Josière, Isabelle Cousin, Lydie Le Forestier. Lateral differentiation of Albeluvisols under the impact of subsurface drainage. 18th World Congress of Soil Science, 2006, Phila, United States. ⟨hal-00089169⟩

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