Referencing Water Content Effects on Soil Electrical Conductivity—Salinity Calibrations1
- Jean-Christophe Bottraud and
- J. D. Rhoades2
The effects of hysteresis on soil electrical conductivity (σa), matric potential (ψm), and σa-volumetric water content (Θ) relations were evaluated for two matrix materials using laboratory column techniques. These σa-Θ relations were found to be little dependent on whether changes in soil moisture occurred by drying or wetting. In contrast, σa-Ψm relations displayed a strong hysteresis effect. It is concluded that Θ is a simpler and more accurate parameter to use for adjusting for soil moisture status when determining soil salinity from measurements of σa.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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