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Spectral induced polarization of roots in hydroponic solution and soil

Citation:

Kuzma, T. ; Schwartz, N. ; Smith, R. H. Spectral induced polarization of roots in hydroponic solution and soil. In 2018 SEG International Exposition and Annual Meeting, SEG 2018; 2018 SEG International Exposition and Annual Meeting, SEG 2018; 2019; pp. 2566-2570.

Abstract:

Monitoring plant root within the subsurface is important but challenging, due to the opacity of the soil. Recently, it was demonstrated that the spectral induced polarization (SIP) method has the potential to image roots, but the mechanisms governing the SIP signal of roots remain poorly understood. Here, we present a numerical model and experimental setup that was designed to establish relationships between root properties and the SIP response and to enhance our understanding of the polarization mechanisms of roots. Our preliminary results show a positive correlation between root mass and quadrature conductivity in nutrient solution. Surprisingly, a negative relation was found in soil. Overall, the results from this study further demonstrate the potential of the SIP method to monitor roots. © 2018 SEG.

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