Effect of ionic strength and sodium adsorption ratio on the flocculation/dispersion of two surface soils from eastern Arkansas

Mohamed S. Alhammadi; David M. Miller

doi:10.1097/01.ss.0000227578.89446.1f

Effect of ionic strength and sodium adsorption ratio on the flocculation/dispersion of two surface soils from eastern Arkansas

Mohamed S. Alhammadi, David M. Miller

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Poor tilth and, often, a surface crust characterize eastern Arkansas soils. Such soils have very low water infiltration and high water runoff rate leading to increase turbidity in rivers and soil erosion. Sharkey clay and Desha silt loam soils from Delta region of eastern Arkansas were used to find the effect of sodium adsorption ratio (SAR) and ionic strength (IS) on the dispersion/flocculation behaviors of the soils. Percent light transmissions at a wavelength of 530 nm were related to the concentration of clay in suspension. Each soil was equilibrated with a series of solutions having different IS and containing Na and Ca in various proportions. At different IS and SAR, the two soils exhibited different behaviors. Clay dispersibility was a more sensitive function of SAR at low IS than at high IS.

Original language	English
Pages (from-to)	960-967
Number of pages	8
Journal	Soil Science
Volume	171
Issue number	12
DOIs	https://doi.org/10.1097/01.ss.0000227578.89446.1f
Publication status	Published - Dec 2006

Keywords

Arkansas's Delta
Clay's behavior
Critical flocculation concentration

ASJC Scopus subject areas

Soil Science

Access to Document

10.1097/01.ss.0000227578.89446.1f

Cite this

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abstract = "Poor tilth and, often, a surface crust characterize eastern Arkansas soils. Such soils have very low water infiltration and high water runoff rate leading to increase turbidity in rivers and soil erosion. Sharkey clay and Desha silt loam soils from Delta region of eastern Arkansas were used to find the effect of sodium adsorption ratio (SAR) and ionic strength (IS) on the dispersion/flocculation behaviors of the soils. Percent light transmissions at a wavelength of 530 nm were related to the concentration of clay in suspension. Each soil was equilibrated with a series of solutions having different IS and containing Na and Ca in various proportions. At different IS and SAR, the two soils exhibited different behaviors. Clay dispersibility was a more sensitive function of SAR at low IS than at high IS.",

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AU - Alhammadi, Mohamed S.

AU - Miller, David M.

PY - 2006/12

Y1 - 2006/12

N2 - Poor tilth and, often, a surface crust characterize eastern Arkansas soils. Such soils have very low water infiltration and high water runoff rate leading to increase turbidity in rivers and soil erosion. Sharkey clay and Desha silt loam soils from Delta region of eastern Arkansas were used to find the effect of sodium adsorption ratio (SAR) and ionic strength (IS) on the dispersion/flocculation behaviors of the soils. Percent light transmissions at a wavelength of 530 nm were related to the concentration of clay in suspension. Each soil was equilibrated with a series of solutions having different IS and containing Na and Ca in various proportions. At different IS and SAR, the two soils exhibited different behaviors. Clay dispersibility was a more sensitive function of SAR at low IS than at high IS.

AB - Poor tilth and, often, a surface crust characterize eastern Arkansas soils. Such soils have very low water infiltration and high water runoff rate leading to increase turbidity in rivers and soil erosion. Sharkey clay and Desha silt loam soils from Delta region of eastern Arkansas were used to find the effect of sodium adsorption ratio (SAR) and ionic strength (IS) on the dispersion/flocculation behaviors of the soils. Percent light transmissions at a wavelength of 530 nm were related to the concentration of clay in suspension. Each soil was equilibrated with a series of solutions having different IS and containing Na and Ca in various proportions. At different IS and SAR, the two soils exhibited different behaviors. Clay dispersibility was a more sensitive function of SAR at low IS than at high IS.

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KW - Clay's behavior

KW - Critical flocculation concentration

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Effect of ionic strength and sodium adsorption ratio on the flocculation/dispersion of two surface soils from eastern Arkansas

Abstract

Keywords

ASJC Scopus subject areas

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