Electrical multi-depth survey to assess soil cover spatial organization

Solène Buvat; Yves Coquet; Julien Thiesson; Alain Tabbagh; Joël Michelin; Bernard Nicoullaud

Electrical multi-depth survey to assess soil cover spatial organization

Solène Buvat ¹ Yves Coquet ¹ Julien Thiesson ² Alain Tabbagh ³ Joël Michelin ⁴ Bernard Nicoullaud ⁵

1 ISTO - Institut des Sciences de la Terre d'Orléans - UMR7327

2 UFR 918 Terre - environnement - Biodiversité

SISYPHE - Structure et fonctionnement des systèmes hydriques continentaux

3 SISYPHE - Structure et fonctionnement des systèmes hydriques continentaux

4 EGC - Environnement et Grandes Cultures

5 INRA - Unité Science du Sol

Abstract : Geophysical technics can be a great help for soil mapping since they are non-destructive and fast. Electrical data from a 3-depth survey, usually treated as three apparent resistivity maps, are considered here as many electrical soundings with three apparent resistivity values. The study of the vertical succession of these values led to a geophysical taxonomy. Geophysical taxa mapping shows that their spatial distribution is related to pedological characteristics. Compared to a pre-existing soil map, the delineations of taxon clusters closely matched soil units boundaries and leads to the assignment to each soil type of a specific apparent electrical resistivity profile.

Document type :

Book sections

Domain :

Sciences of the Universe [physics] / Continental interfaces, environment

Environmental Sciences / Global Changes

Complete list of metadatas

https://hal-insu.archives-ouvertes.fr/insu-00955377
Contributor : Nathalie Pothier <>
Submitted on : Tuesday, March 4, 2014 - 1:52:29 PM
Last modification on : Wednesday, May 15, 2019 - 3:58:18 AM

Electrical multi-depth survey to assess soil cover spatial organization

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Electrical multi-depth survey to assess soil cover spatial organization

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