Improvement of coarse root detection using time and frequency induced polarization: from laboratory to field experiments

Mary, Benjamin; Abdulsamad, F.; Saracco, Ginette; Peyras, Laurent; Vennetier, M.; Mériaux, Patrice; Camerlynck, Christian

doi:10.1007/s11104-017-3255-4

Cited by 24 publications

(37 citation statements)

References 56 publications

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“…Mary et al . ; Weigand ). In particular, the SIP response of unsaturated soil is still poorly understood (e.g.…”

Section: Root Characterizationmentioning

confidence: 99%

“…In such systems, interpretation is complicated by the superposition of root signatures and soil polarization signatures and associated processes, such as water dynamics, salinity and temperature changes (e.g. Mary et al 2017;Weigand 2017). In particular, the SIP response of unsaturated soil is still poorly understood (e.g.…”

Section: Imaging Of the Induced Polarization Response Of Root Systemsmentioning

confidence: 99%

“…Breede et al 2012;Maineult, Jougnot and Revil 2018). Early attempts to image coarse root systems under controlled field conditions using simple mapping approaches showed promising results, but highlighted the importance of incorporating anisotropy into the measurement and analysis procedures (Mary et al 2017). Possible solutions might also be found in the combination of imaging with stem-injection set-ups, as recently done by Mary et al (2018) for grapevine root systems using resistance measurements.…”

Section: Imaging Of the Induced Polarization Response Of Root Systemsmentioning

confidence: 99%

“…Finally, multifrequency measurements also seem essential for root investigations in soils and substrates. Such measurements not only help in differentiating between soil and root systems (Mary et al 2017) but also allow to extract characteristic relaxation times from the imaging results, which may provide information on the length scales of the polarization processes (e.g. Weigand and Kemna 2019).…”

Section: Imaging Of the Induced Polarization Response Of Root Systemsmentioning

confidence: 99%

“…Recent developments (e.g. Vanderborght et al 2013;Martin 2012Martin , 2015Mary et al 2017Mary et al , 2018Weigand and Kemna 2019) showed that geophysical methods are also sensitive to plant roots and processes associated with the development of plants and trees. We thus extend the definition of biogeophysics to also include the geophysical signature of plant-root systems and trees.…”

Section: Introductionmentioning

confidence: 99%

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Induced polarization applied to biogeophysics: recent advances and future prospects

Kessouri

Furman

Huisman

et al. 2019

Near Surface Geophysics

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This paper provides an update on the fast‐evolving field of the induced polarization method applied to biogeophysics. It emphasizes recent advances in the understanding of the induced polarization signals stemming from biological materials and their activity, points out new developments and applications, and identifies existing knowledge gaps. The focus of this review is on the application of induced polarization to study living organisms: soil microorganisms and plants (both roots and stems). We first discuss observed links between the induced polarization signal and microbial cell structure, activity and biofilm formation. We provide an up‐to‐date conceptual model of the electrical behaviour of the microbial cells and biofilms under the influence of an external electrical field. We also review the latest biogeophysical studies, including work on hydrocarbon biodegradation, contaminant sequestration, soil strengthening and peatland characterization. We then elaborate on the induced polarization signature of the plant‐root zone, relying on a conceptual model for the generation of biogeophysical signals from a plant‐root cell. First laboratory experiments show that single roots and root system are highly polarizable. They also present encouraging results for imaging root systems embedded in a medium, and gaining information on the mass density distribution, the structure or the physiological characteristics of root systems. In addition, we highlight the application of induced polarization to characterize wood and tree structures through tomography of the stem. Finally, we discuss up‐ and down‐scaling between laboratory and field studies, as well as joint interpretation of induced polarization and other environmental data. We emphasize the need for intermediate‐scale studies and the benefits of using induced polarization as a time‐lapse monitoring method. We conclude with the promising integration of induced polarization in interdisciplinary mechanistic models to better understand and quantify subsurface biogeochemical processes.

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“…Mary et al . ; Weigand ). In particular, the SIP response of unsaturated soil is still poorly understood (e.g.…”

Section: Root Characterizationmentioning

confidence: 99%

Section: Imaging Of the Induced Polarization Response Of Root Systemsmentioning

confidence: 99%

Section: Imaging Of the Induced Polarization Response Of Root Systemsmentioning

confidence: 99%

Section: Imaging Of the Induced Polarization Response Of Root Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Induced polarization applied to biogeophysics: recent advances and future prospects

Kessouri

Furman

Huisman

et al. 2019

Near Surface Geophysics

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Three‐channel electrical impedance spectroscopy for field‐scale root phenotyping

Peruzzo

Liu

Chou

et al. 2021

The Plant Phenome Journal

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Electrical impedance spectroscopy has long been considered a promising technique for noninvasive, in-situ root investigation because of its sensitivity to anatomy and physiology. However, the complexity of the root system and its coupling with stem and soil have hindered the signal interpretation and methodological upscaling to field applications. This study addresses these key issues by introducing three-channel acquisitions and their interpretation through Cole-Cole fitting. This solution could successfully decouple the impedance response of stem, roots, and soil, as well as provide convenient parametrization and comparison of their impedance signals. The methodological solution was tested on 80 wheat (Triticum aestivum L.) and 10 pecan [Carya illinoensis (Wangenh.) K. Koch] plants, the first extensive and field investigation. The investigation provided evidence of (a) proximal current leakage in herbaceous root systems, extending recent laboratory results and previous indirect field studies. (b) Major role of the plant stem, which has been a substantial concern raised in numerous studies. (c) Minor contribution from the soil, addressing the doubts on the comparability of results obtained in different soil conditions. All together, these evidences lead to indirect correlations between impedance signals and root traits. The explored solution is expected to support the adoption of the impedance spectroscopy, in line with the diffusion of multichannel impedance meters and growing interest in root physiology and phenotyping.

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Accounting for heterogeneity in the θ–σ relationship: Application to wheat phenotyping using EMI

Blanchy

Watts

Ashton

et al. 2020

Vadose Zone Journal

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Geophysical methods, such as electromagnetic induction (EMI), can be effective for monitoring changes in soil moisture at the field scale, particularly in agricultural applications. The electrical conductivity (σ) inferred from EMI needs to be converted to soil moisture content (θ) using an appropriate relationship. Typically, a single global relationship is applied to an entire agricultural field; however, soil heterogeneity at the field scale may limit the effectiveness of such an approach. One application area that may suffer from such an effect is crop phenotyping. Selecting crop varieties based on their root traits is important for crop breeding and maximizing yield. Hence, highthroughput tools for phenotyping the root system architecture and activity at the field scale are needed. Water uptake is a major root activity and, under appropriate conditions, can be approximated by measuring changes in soil moisture from time-lapse geophysical surveys. We examine here the effect of heterogeneity in the θ-σ relationship using a crop phenotyping study for illustration. In this study, the θ-σ relationship was found to vary substantially across a field site. To account for this, we propose a range of local (plot specific) θ-σ models. We show that the large number of parameters required for these models can be estimated from baseline σ and θ measurements. Finally, we compare the use of global (field scale) and local (plot scale) models with respect to ranking varieties based on the estimated soil moisture content change.

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Improvement of coarse root detection using time and frequency induced polarization: from laboratory to field experiments

Cited by 24 publications

References 56 publications

Induced polarization applied to biogeophysics: recent advances and future prospects

Induced polarization applied to biogeophysics: recent advances and future prospects

Three‐channel electrical impedance spectroscopy for field‐scale root phenotyping

Accounting for heterogeneity in the θ–σ relationship: Application to wheat phenotyping using EMI

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