A Rapid Method for Estimating Weighted Soil Salinity From Apparent Soil Electrical Conductivity Measured With an Aboveground Electromagnetic Induction Meter

Application of EM38 and ERT methods in estimation of saturated hydraulic conductivity in unsaturated soil

“…The EMI technique was initially introduced for measuring and mapping soil salinity (Halvorson and Rhoades, 1974;McNeill, 1986;Wollenhaupt et al, 1986) and was extended to quantifying and mapping soil moisture content. The relationship between soil moisture content and electrical conductivity has been established by many investigators (e.g.…”

The use of electromagnetic induction techniques in soils studies

“…A major challenge in using EMI to map soil salinity has been the conversion of apparent conductivity (EC a ) into the conductivity of the saturated paste extract (EC e ); the most commonly used measure of soil salinity. A number of models were developed to predict EC e from EC a Corwin and Rhoades, 1982, 1984, 1990Johnston et al, 1997;Lesch et al, 1992Lesch et al, , 1995aLesch et al, , 1995bMcKenzie et al, 1989;Rhoades et al, 1989aRhoades et al, , 1989bSlavich, 1990;Wollenhaupt et al, 1986). Unfortunately, models are imperfect and tend to be both time dependent and site specific (Lesch et al, 1998).…”

GIS Applications of Deterministic Solute Transport Models for Regional-Scale Assessment of Non-Point Source Pollutants in the Vadose Zone

“…Remote sensing methods such as electromagnetic induction (DeJong et al, 1979;Rhoades & Corwin, 1981;Williams & Baker, 1982;Oluic & Kovacevic, 1983;Wollenhaupt et al, 1986;Palacky, 1987;Williams & Hoey, 1987;Kachanoski et al, 1988;Mazac et al, 1988;Corwin & Rhoades, 1990;Slavich & Petterson, 1990;Diaz & Herrero, 1992;Greenhouse & Slaine, 1983;Sudduth & Kitchen, 1993;Doolittle et al, 1994;Jaynes et al, 1995;Lesch et al, 1995) electrical resistivity tomography (Mazac et al, 1988;Daily et al, 1992), near-IR measurements (Sudduth & Hummel, 1993),x-ray tomography (Tollner, 1994) thermal-IR measurements (Ottle et al, 1989;Jupp et al, 1990;Shih & Jordan, 1993;Moran et al, 1994b), NOAA advanced very high resolution radiometry (Huang et al, 1995) microwave measurements (Jackson & Schmugge, 1986;Jupp et al, 1990;Wood et al, 1993;Schmugge et al, 1994) ground penetrating radar (Topp et al, 1980;Doolittle, 1987;Truman et al, 1988;Raper et al, 1990;Kung & Donohue, 1991;Kung & Lu, 1993), and multispectral scanning (Everitt et al, 1977;Chaturvedi et al...…”