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This article in SSSAJ

  1. Vol. 53 No. 5, p. 1368-1374
     
    Received: Aug 22, 1988
    Published: Sept, 1989


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doi:10.2136/sssaj1989.03615995005300050011x

Determining Soil Salinity from Soil and Soil-Paste Electrical Conductivities: Sensitivity Analysis of Models

  1. J. D. Rhoades ,
  2. B. L. Waggoner,
  3. P. J. Shouse and
  4. W. J. Alves
  1. USDA-ARS, U.S. Salinity Lab., 4500 Glenwood Dr., Riverside, CA. 92501

Abstract

Abstract

Models and relations used to determine soil salinity (ECe) in the field from measurements of bulk soil electrical conductivity (ECa), or from saturated soil-paste electrical conductivity (ECp), and estimates of other influential soil parameters were analyzed to evaluate the degree to which salinity appraisal is affected by inaccuracies made in the estimates. Results show that the values of the parameters which can not be easily measured in the field (i.e., bulk density (ρb), particle density (ρs), clay percentage (% clay), and total and “immobile” volumetric soil water contents (θw and θws, respectively) can be estimated sufficiently accurately for the purposes of practical soil salinity appraisal.

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