EGU21-4574, updated on 10 Jan 2023
https://doi.org/10.5194/egusphere-egu21-4574
EGU General Assembly 2021
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Soil salinity monitoring and detection of obstructed drainage pipes in the B-XII irrigation district (SW Spain) using electromagnetic induction sensing and inversion. 

Mario Ramos1, Mohhamad Farzamian2, José Luis Gómez1, Alfonso González1, Benito Salvatierra3, Gonzalo Martínez4, and Karl Vanderlinden1
Mario Ramos et al.
  • 1Córdoba, Spain (marioramosrodriguez1991@gmail.com)
  • 2Instituto Nacional de Investigação Agrária e Veterinária, Oeiras, Portugal
  • 3IFAPA Centro Rancho de la Merced, Cádiz, Spain
  • 4Departamento de Física Aplicada, Radiología y Medicina Física, Universidad de Córdoba, Córdoba, Spain.

Inversion of electromagnetic induction (EMI) signals is increasingly used for monitoring soil salinity in irrigated fields. In the B-XII irrigation district (SW Spain) the build-up of high salt concentrations in the topsoil is often related with a deficient performance of the underlying drainage system resulting in higher-than-average soil moisture conditions and salinization. This work aims at using EMI sensing and inversion to identify and localize problems (e.g. obstruction) with the drainage system in a 12.5 ha irrigated field in the B-XII irrigation district. The identified salinity hotspots in the EMI images are further validated using remotely sensed NDVI data and detailed information obtained during the cleaning of the drainage system, in addition to hard soil data. This study shows that EMI sensing and inversion can pinpoint problems with the drainage system that result in salinity hotspots and identify areas where the drainage system should be cleaned or substituted.

 

This work is funded by the Spanish State Agency for Research through grants PID2019-104136RR-C21 and PID2019-104136RR-C22 and by IFAPA/FEDER through grant AVA2019.018.

How to cite: Ramos, M., Farzamian, M., Gómez, J. L., González, A., Salvatierra, B., Martínez, G., and Vanderlinden, K.: Soil salinity monitoring and detection of obstructed drainage pipes in the B-XII irrigation district (SW Spain) using electromagnetic induction sensing and inversion. , EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-4574, https://doi.org/10.5194/egusphere-egu21-4574, 2021.

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