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(Article of periodic en Anglais - 2012)

Document title

Field-scale estimation of the volume percentage of rock fragments in stony soils by electrical resistivity

Authors(s) and Affiliation(s)

TETEGAN M. (1 2) ; PASQUIER C. (1) ; BESSON A. (1 3) ; NICOULLAUD B. (1) ; BOUTHIER A. (2) ; BOURENNANE H. (1) ; DESBOURDES C. (4) ; KING D. (1) ; COUSIN I. (1) ;
(1) Inst. National de la Recherche Agronomique (INRA), UR 0272 Science du Sol, Centre de Recherche, Orléans, FRANCE
(2) ARVALIS - Inst. du Végétal, Domaine Expérimental du Magneraud, Saint Pierre d'Amilly, FRANCE
(3) Inst. National de la recherche Agronomique, UMR LISAH, Montpellier, FRANCE
(4) ARVALIS - Inst. du Végétal, Ouzouer le Marché, FRANCE

Abstract

This paper presents a method that uses field spatial electrical resistivity measurements to determine the volume proportion of rock fragments. Based on the hypothesis that the electrical resistivity signal noise increases as the proportion of rock fragments increases, a model was developed that uses the standard deviation of the apparent electrical resistivity measurements over a small area as an indicator of rock fragment contents. The model was tested on 3 study areas of several hectares containing soil units with varying quantities of rock fragments in the Beauce region (Villamblain, France). The developed model strongly depends on the water content in the soil and the rock type and must be calibrated in each context. Nevertheless, estimations of the rock fragment content in stony soils can be performed efficiently in the surface horizon as well as all along the soil profile

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2012, vol. 92 [pp. 67-74]

Bibliographic references : 40 ref.

Collation : 8 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.09.005

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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