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Étude des états de surface du sol et de leur dynamique pour différentes pratiques de travail du sol. Mise au point d'un indicateur de ruissellement.

Abstract : This study concerns water erosion occuring on loamy hills of Alsace (France). It focuses on continuous grain corn, whose surface state characteritics (SSC) strongly influences runoff formation during spring. Our goal is to study the differences of surface state characteristics amongst different tillage treatments: conventional technique (based on plough use), no-tillage techniques and direct-drilling. The SSC's spatial variability created by tillage has been particularly investigated. Measurements of runoff and erosion have been carried out under natural and artificial rainfalls to complete surface observations. Main results indicate a decrease in runoff and erosion in no-till and direct-drilling treatments. Most of SSC differences between tillage treatments were observed on interrows. Based on SSC and runoff measurements, an indicator estimating the rainfall amounts required to observed runoff was built.
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Contributor : Romain Armand <>
Submitted on : Wednesday, March 3, 2010 - 11:23:03 PM
Last modification on : Friday, October 23, 2020 - 4:37:19 PM
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Romain Armand. Étude des états de surface du sol et de leur dynamique pour différentes pratiques de travail du sol. Mise au point d'un indicateur de ruissellement.. Géographie. Université de Strasbourg, 2009. Français. ⟨tel-00461222⟩

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