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The impacts of sodicity on soil strength

✍ Scribed by N. Kyei-Baffour; D. W. Rycroft; T. W. Tanton

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
140 KB
Volume
53
Category
Article
ISSN
1531-0353

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✦ Synopsis

Abstract

The paper describes an investigation into the relationship between the level of sodium induced at the soil surface by the evaporation of saline water and the shear strength, both immediately after salinisation and then again after leaching. The results indicate that the strength of the surface increases during salinisation in response to increasing sodicity. The increase in shear strength on leaching became apparent once the levels of sodicity had begun to exceed values currently used to identify when swelling and dispersion are likely to exert an influence on the soil structure. It was also discovered that these effects were not merely confined to the surface but existed throughout the depth of the soil. Copyright Β© 2004 John Wiley & Sons, Ltd.

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