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Effect of Exchangeable Sodium Percentage, Cation Exchange Capacity, and Soil Solution Concentration on Soil Electrical Conductivity
Author(s) -
Shainberg I.,
Rhoades J. D.,
Prather R. J.
Publication year - 1980
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1980.03615995004400030006x
Subject(s) - electrical resistivity and conductivity , cation exchange capacity , soil water , conductivity , soil salinity , soil science , conductance , salt (chemistry) , chemistry , range (aeronautics) , analytical chemistry (journal) , materials science , environmental chemistry , environmental science , composite material , mathematics , combinatorics , electrical engineering , engineering
The electrical conductivity of eight soils was measured as a function of the solution electrical conductivity over a wide range of salt concentration and salt composition. The soils electrical conductivity increased nonlinearly with respect to the equilibrium solution electrical conductivity in the low range of salt concentration (< 2–3 mmho/cm). In the higher salt concentration range, straight line relationships were obtained. The shape of the curves was explained by the inclusion of a solid‐water in series element in the conductance model. The effect of the soil ESP on the electrical conductivity curve parameters is slight and is not significant when the electrical conductivity method is used to survey soil salinity.