Irrigation: Saline Water

Authored by: B.A. Stewart

Managing Water Resources and Hydrological Systems

Print publication date:  July  2020
Online publication date:  July  2020

Print ISBN: 9781138342668
eBook ISBN: 9781003045045
Adobe ISBN:

10.1201/9781003045045-19

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Abstract

As water becomes more limited, there is increasing use of saline waters for irrigation that were previously considered unsuitable. As salinity in the root zone increases, the osmotic potential of the soil solution decreases and therefore reduces the availability of water to plants. The extent that plant growth is affected by saline water is dependent on the crop species. Soils are also negatively impacted by salt, particularly sodium salts. Sodium ions tend to disperse clay particles and this has deleterious effects on infiltration rate, structure, and other soil physical properties.

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