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Volume 14, issue 4
Biogeosciences, 14, 921–939, 2017
https://doi.org/10.5194/bg-14-921-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 14, 921–939, 2017
https://doi.org/10.5194/bg-14-921-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 28 Feb 2017

Research article | 28 Feb 2017

Multi-frequency electrical impedance tomography as a non-invasive tool to characterize and monitor crop root systems

Maximilian Weigand and Andreas Kemna

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Cited articles

al Hagrey, S.: Geophysical imaging of root-zone, trunk, and moisture heterogeneity, J. Exp. Bot., 58, 839–854, https://doi.org/10.1093/jxb/erl237, 2007.
al Hagrey, S. and Petersen, T.: Numerical and experimental mapping of small root zones using optimized surface and borehole resistivity tomography, Geophysics, 76, G25–G35, https://doi.org/10.1190/1.3545067, 2011.
Alumbaugh, D. and Newman, G.: Image appraisal for 2-D and 3-D electromagnetic inversion, Geophysics, 65, 1455–1467, https://doi.org/10.1190/1.1444834, 2000.
Amato, M., Basso, B., Celano, G., Bitella, G., Morelli, G., and Rossi, R.: In situ detection of tree root distribution and biomass by multi-electrode resistivity imaging, Tree Physiol., 28, 1441–1448, https://doi.org/10.1093/treephys/28.10.1441, 2008.
Amato, M., Bitella, G., Rossi, R., Gómez, J. A., Lovelli, S., and Gomes, J. J. F.: Multi-electrode 3D resistivity imaging of alfalfa root zone, Eur. J. Agron., 31, 213–222, https://doi.org/10.1016/j.eja.2009.08.005, 2009.
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Short summary
Root systems are essential in nutrient uptake and translocation, but are difficult to characterize non-invasively with existing methods. We propose electrical impedance tomography (EIT) as a new tool for the imaging and monitoring of crop root systems. In a laboratory experiment we demonstrate the capability of the method to capture physiological responses of root systems with high spatial and temporal resolution. We conclude that EIT is a promising functional imaging technique for crop roots.
Root systems are essential in nutrient uptake and translocation, but are difficult to...
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