Articles | Volume 14, issue 4
Biogeosciences, 14, 921–939, 2017
Biogeosciences, 14, 921–939, 2017
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,, 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,, 2011.
Alumbaugh, D. and Newman, G.: Image appraisal for 2-D and 3-D electromagnetic inversion, Geophysics, 65, 1455–1467,, 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,, 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,, 2009.
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.
Final-revised paper