Geophysical methods like ground-penetrating radar (GPR) and electromagnetic induction (EMI) offer non-destructive, high-resolution alternatives for soil sampling. This study aims to understand subsurface stratifications in boreal podzolic soil employing an integrated GPR–EMI technique and soil sampling. The GPR and EMI confirmed each technique's findings. They provided insights into the spatial variability of electrical conductivity, textural changes, and stratification (detected mainly by GPR reflections) in the soil profile. The assessed soil properties revealed the existence of two contrasting layers within 0–0.60 m depth. The study highlights the potential of using integrated GPR–EMI to identify subsurface stratification in boreal podzolic soil.
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8 December 2024
Integrated ground-penetrating radar and electromagnetic induction techniques for characterizing boreal podzolic soil in western Newfoundland
Sashini Pathirana,
Sébastien Lambot,
Manokararajah Krishnapillai,
Christina Smeaton,
Mumtaz Cheema,
Lakshman Galagedara
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EMI depth inversion
geophysical techniques
GPR depth slices
Integration
subsurface stratigraphy