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Communication dans un congrès

In situ temporal and spatial monitoring of the structure of a compacted and cultivated loamy soil by the 2D ERT method

Abstract : Temporal and spatial monitoring of soil structural heterogeneity is useful to predict physical changes in soils. Usual methods implemented to characterise soil structure are generally destructive and time-consuming. Further technical solutions are then required to describe rapidly the soil structure without any disturbance. Electrical resistivity tomography (ERT) was proven to be efficient technique for detecting accurately zones with contrasted bulk density. Consequently space and time changes in soil structure might be characterized by ERT. We aimed then at testing this possibility by using the 2D ERT method. We have monitored for 8 months a typical Luvisol by ERT. The soil was initially and locally compacted by a heavy tractor in the objective of creating zones of high bulk density. The studied plot encompassed bare soil and wheat crop. ERT results indicated the soil drying process which occurred in summer and particularly under wheat crop. We show also that electrical resistivity was higher in summer with local zone of very high resistivity probably due to soil cracking.
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Communication dans un congrès
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https://hal.inrae.fr/hal-02756247
Déposant : Migration Prodinra <>
Soumis le : mercredi 3 juin 2020 - 22:44:38
Dernière modification le : jeudi 24 septembre 2020 - 16:00:36

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2010_Seger_19WCSS_0849_1.pdf
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  • HAL Id : hal-02756247, version 1
  • PRODINRA : 258334

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Maud Seger, Arlène Besson, Isabelle Cousin, Guillaume Giot, Julien Thiesson, et al.. In situ temporal and spatial monitoring of the structure of a compacted and cultivated loamy soil by the 2D ERT method. 19. World Congress of Soil Science; Soil Solutions for a Changing World, Aug 2010, Brisbane, Australia. ⟨hal-02756247⟩

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