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Determining Soil Salinity from Soil and Soil‐Paste Electrical Conductivities: Sensitivity Analysis of Models
Author(s) -
Rhoades J. D.,
Waggoner B. L.,
Shouse P. J.,
Alves W. J.
Publication year - 1989
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/sssaj1989.03615995005300050011x
Subject(s) - soil science , salinity , bulk density , soil salinity , environmental science , electrical resistivity and conductivity , soil test , soil water , pedotransfer function , dryland salinity , clay soil , hydrology (agriculture) , hydraulic conductivity , geotechnical engineering , geology , soil organic matter , soil biodiversity , physics , oceanography , quantum mechanics
Models and relations used to determine soil salinity (EC e ) in the field from measurements of bulk soil electrical conductivity (EC a ), or from saturated soil‐paste electrical conductivity (EC p ), 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 (ρ b ), particle density (ρ s ), clay percentage (% clay), and total and “immobile” volumetric soil water contents (θ w and θ ws , respectively) can be estimated sufficiently accurately for the purposes of practical soil salinity appraisal.