Identification of marine intrusion in the plain of Collo, northeastern Algeria

The population increase, urbanization and intensification of agriculture and demands for water supply in the coastal plain of Collo led to excessive pumping of the unconfined aquifer with limited dimensions. This study aimed to characterize the effect of the overexploitation of the groundwater from...

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Bibliographic Details
Published in:Journal of water and land development 2017-12, Vol.35 (1), p.211-219
Main Authors: Saaidia, Bachir, Mahia, Mohamed, Chaab, Salah
Format: Article
Language:English
Subjects:
Algeria
Aquifers
Boreholes
coastal aquifer
Coastal plains
Coastal waters
Collo
Dimensions
Electrical conductivity
Electrical resistivity
Groundwater
Groundwater flow
Groundwater table
Intrusion
marine intrusion
Overexploitation
Saline water intrusion
Saltwater intrusion
Seawater
Sodium
Unconfined aquifers
Urbanization
Wadis
Water flow
Water pollution
water salinity
Water supply
Water table
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Summary:The population increase, urbanization and intensification of agriculture and demands for water supply in the coastal plain of Collo led to excessive pumping of the unconfined aquifer with limited dimensions. This study aimed to characterize the effect of the overexploitation of the groundwater from the only unconfined aquifer in the region, what resulted in the inversion of the groundwater flow and the rise the possible seawater pollution that is shown in the water table map. The causes and effects of the saltwater intrusion were discussed. The interpretation of the electrical conductivity measurements, chloride and sodium maps have shown clearly the areas where values were the highest with tighter curves towards the sea, the wadis Guebli and Cherka. These values distribution indicated a marine source of salinity in wells and boreholes close to the sea and wadis.
ISSN:2083-4535
1429-7426
2083-4535
DOI:10.1515/jwld-2017-0086