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A comprehensive review of the salinity assessment in groundwater resources of Iran

  • Review Article - Hydrology
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Abstract

The main purpose of the present research is to propose a comprehensive attitude of the salinity in groundwater resources of Iran using 116 papers in the assessment of groundwater quality in different areas of the country. The conducted study contains the measurement of the values of physicochemical parameters of which electrical conductivity (EC), as the fundamental parameter for salinity determination of groundwater, was considered mostly, and by comparing it with standards, as well as employing the Wilcox diagram, the quality of water was assessed for drinking and agricultural purposes, respectively. Study of the previous papers revealed that in only the west and northwest of the country, the groundwater quality was suitable for drinking, and in the majority of provinces, EC values exceeded the recommended limits. The highest EC level was seen in central provinces which led to the aggravation of groundwater and the largest proportion of salinity, putting the quality of water in an unsuitable class for drinking. Additionally, the assessment of groundwater quality for irrigation uses using the Wilcox diagram showed high and very high salinity rates in most areas of the study area. Northwestern provinces relatively had the lowest level putting in C3–S1 class, while central areas reached the highest with C4–S4 classification. Deficiency of rainfall, high rate of groundwater exploitation, and the intrusion of saltwater from Salt Lake were the principal reasons for groundwater deterioration in central parts of the study area.

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SMA was contributed to methodology, data curation, software, editing, analysis, original-draft manuscript. SMS was contributed to conceptualization, reviewing and editing, supervision, validation.

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Correspondence to Seyyed Mohammad Shoaei.

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Edited by Dr. Michael Nones (CO-EDITOR-IN-CHIEF).

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Mohammadi Arasteh, S., Shoaei, S.M. A comprehensive review of the salinity assessment in groundwater resources of Iran. Acta Geophys. 72, 385–403 (2024). https://doi.org/10.1007/s11600-023-01047-y

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  • DOI: https://doi.org/10.1007/s11600-023-01047-y

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