Titre
Lasting Effects of Soil Compaction on Soil Water Regime Confirmed by Geoelectrical Monitoring
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Romero-Ruiz, Alejandro
Auteure/Auteur
Linde, Niklas
Auteure/Auteur
Baron, Ludovic
Auteure/Auteur
Breitenstein, Daniel
Auteure/Auteur
Keller, Thomas
Auteure/Auteur
Or, Dani
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
0043-1397
Statut éditorial
Publié
Date de publication
2022-02
Volume
58
Numéro
2
Peer-reviewed
Oui
Langue
anglais
Résumé
Despite its importance for hydrological and ecological soil functioning, characterizing, and quantifying soil structure in the field remains a challenge. Traditional characterization of soil structure often relies on point measurements, more recently, we advanced the use of minimally invasive geophysical methods that operate at plot-field scales and provide information under natural conditions. In this study, we expand the application using geoelectrical and time-domain reflectometry (TDR) monitoring of soil water dynamics to infer impacts of compaction on soil structure and function. We developed a modeling scheme combining a new pedophysical model of soil electrical conductivity and a soil-structure-informed one-dimensional water flow and heat-transfer model. The model was used to interpret Direct Current (DC)-resistivity and TDR monitoring data in compacted soils at the Soil Structure Observatory (SSO) located in the vicinity of Zürich, Switzerland. We find that (1) soil compaction leads to a persistent decrease in soil electrical resistivity and (2) that compacted soils are typically drier than non-compacted soils during long drying events. The main decrease in electrical resistivity is attributed to decreasing macroporosity and increasing connectivity of soil aggregates due to compaction. Higher water losses in compacted soils are explained in terms of enhanced evaporation. Our work advances characterization of soil structure at the field scale with electrical methods by offering a physically based explanation of the impact of soil compaction on electrical properties and by interpreting DC-resistivity data in terms of soil water dynamics.
Sujets
PID Serval
serval:BIB_005F07E8F655
Open Access
Oui
Date de création
2022-04-08T12:46:15.567Z
Date de création dans IRIS
2025-05-20T17:34:57Z
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Nom
Water Resources Research - 2022 - Romero%E2%80%90Ruiz - Lasting Effects of Soil Compaction on Soil Water Regime Confirmed by.pdf
Version du manuscrit
published
Licence
https://creativecommons.org/licenses/by-nc-nd/4.0
Taille
3.1 MB
Format
Adobe PDF
PID Serval
serval:BIB_005F07E8F655.P001
URN
urn:nbn:ch:serval-BIB_005F07E8F6554
Somme de contrôle
(MD5):a2be86844f107eeac34db2a3d2592563