SALINITY AND SODICITY PARAMETERS IN SOME SALT-EFFECTED SOILS OF TABRIZ PLAIN

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FARAHMAND A.; OUSTAN SH.; JAFARZADEH A.A.; ALIASGHARZAD N.

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Paper Information

Journal: WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE) Year:2012 | Volume:22 | Issue:1 Page(s): 1-15

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Title

SALINITY AND SODICITY PARAMETERS IN SOME SALT-EFFECTED SOILS OF TABRIZ PLAIN

Author(s)

FARAHMAND A. | OUSTAN SH. | JAFARZADEH A.A. | ALIASGHARZAD N. | Issue Writer Certificate

Keywords

SALINITYQ3

SODICITYQ4

SALT-AFFECTED SOILSQ4

SARQ3

ESPQ4

TSSQ4

Abstract

SALINITY and SODICITY are expressed in a number of ways, depending on the method and purpose of the measurements. Some researchers attempt to estimate the parameters which can be time consuming, expensive and linked with error from easy- to- obtain parameters. However, these relationships are not universal and, may also vary depending on the type of soil. The aim of this study was to find simple equations in order to estimate the SALINITY and SODICITY parameters for the SALT-AFFECTED SOILS of Tabriz plain. For this purpose 30 composite soil samples were taken from the area. According to the results, SALINITY (TSS, ionic strength and concentration of chloride and sodium ions) and even SODICITY (SAR and ESP) parameters are in close relation with the ECe. The following equations are proposed for estimating parameters of ionic strength (mmol L-1) TSS (mmolc L-1) and SAR (mmol L-1 )0.5 from ECe (dS m-1): I=19.1 ECe (R2=0.991, SEE=57), TSS=7.56 ECe1.13 (R2=0.994, SEE=3.9) and SAR=1.44 ECe0.925 (R2=0.916, SEE=11.3).The data showed that there is a significant positive relationship between pH of saturation extract (in contrast to pH of saturation paste) and bicarbonate concentration. Moreover, this pH may be greater or lower than the pH of saturation paste, depending on the degree of SALINITY.

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APA: Copy

FARAHMAND, A., OUSTAN, SH., JAFARZADEH, A.A., & ALIASGHARZAD, N.. (2012). SALINITY AND SODICITY PARAMETERS IN SOME SALT-EFFECTED SOILS OF TABRIZ PLAIN. WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE), 22(1), 1-15. SID. https://sid.ir/paper/147869/en

Vancouver: Copy

FARAHMAND A., OUSTAN SH., JAFARZADEH A.A., ALIASGHARZAD N.. SALINITY AND SODICITY PARAMETERS IN SOME SALT-EFFECTED SOILS OF TABRIZ PLAIN. WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE)[Internet]. 2012;22(1):1-15. Available from: https://sid.ir/paper/147869/en

IEEE: Copy

A. FARAHMAND, SH. OUSTAN, A.A. JAFARZADEH, and N. ALIASGHARZAD, “SALINITY AND SODICITY PARAMETERS IN SOME SALT-EFFECTED SOILS OF TABRIZ PLAIN,” WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE), vol. 22, no. 1, pp. 1–15, 2012, [Online]. Available: https://sid.ir/paper/147869/en

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