Advanced groundwater potential and contamination vulnerability assessment using integrated GIS-based AHP techniques: A case study from the Bizerte watershed, Tunisia

Sustainable management and monitoring of groundwater resources are critical for ensuring their availability for drinking, agriculture, and industry worldwide. In Bizerte, Tunisia (Southwest Mediterranean region), this need is particularly urgent due to rising demand and contamination risks, aligning...

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Main Authors: Cyrine Belhadj, Rihab Riahi, Abdelaziz Sebei, Sinda Sifi, Noamen Rebai
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Environmental and Sustainability Indicators
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Online Access:http://www.sciencedirect.com/science/article/pii/S2665972725000182
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author Cyrine Belhadj
Rihab Riahi
Abdelaziz Sebei
Sinda Sifi
Noamen Rebai
author_facet Cyrine Belhadj
Rihab Riahi
Abdelaziz Sebei
Sinda Sifi
Noamen Rebai
author_sort Cyrine Belhadj
collection DOAJ
description Sustainable management and monitoring of groundwater resources are critical for ensuring their availability for drinking, agriculture, and industry worldwide. In Bizerte, Tunisia (Southwest Mediterranean region), this need is particularly urgent due to rising demand and contamination risks, aligning with Sustainable Development Goal 6 (SDG 6), which seeks to ensure the availability and sustainable management of water and sanitation for all. This research aims to enhance groundwater management and assess contamination risks in Bizerte using the Analytic Hierarchy Process (AHP). A multidisciplinary approach was adopted, integrating multi-criteria analysis and a spatially referenced hydrogeological information system. Eight thematic layers, geomorphology (0.15), slope (0.10), lineament density (0.12), drainage density (0.10), land use/land cover (0.08), precipitation (0.20), lithology (0.15), and soil (0.10) were analyzed for their impact on groundwater availability. Weights were assigned via an AHP-based pairwise comparison matrix and integrated using Geographic Information System (GIS) technology to generate a groundwater potential map. The analysis revealed that approximately 60% of the area has significant groundwater potential, with 30% classified as high potential zones and 30% as moderate potential zones. Vulnerability to contamination was assessed, showing that 20% of the area is at risk, primarily due to agricultural activities, industrial discharges, and inadequate waste management. The results highlighted the need for continuous monitoring and effective management strategies, underscoring the importance of a holistic approach in groundwater management to provide a robust decision-making framework.
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institution Kabale University
issn 2665-9727
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series Environmental and Sustainability Indicators
spelling doaj-art-83172ad9e3ab4620927ed8b8a70c98102025-01-31T05:12:23ZengElsevierEnvironmental and Sustainability Indicators2665-97272025-06-0126100597Advanced groundwater potential and contamination vulnerability assessment using integrated GIS-based AHP techniques: A case study from the Bizerte watershed, TunisiaCyrine Belhadj0Rihab Riahi1Abdelaziz Sebei2Sinda Sifi3Noamen Rebai4Geotechnical and Georisks Engineering Laboratory, University of Tunis El Manar, National Engineering School of Tunis (ENIT), b.p 37. 1002, Tunis, Tunisia; Corresponding author. LR14ES03 Geotechnical and Georisks Engineering Laboratory University of Tunis el Manar, National Engineering School of Tunis (ENIT), Béchir Salem Belkhiria Street, El Manar University Campus, b.p 37, Le Bélvédère 1002. Tunisia.Geotechnical and Georisks Engineering Laboratory, University of Tunis El Manar, National Engineering School of Tunis (ENIT), b.p 37. 1002, Tunis, TunisiaMineral Ressources and Environment Laboratory, University of Tunis El Manar, Faculty of Sciences of Tunis (FST), 1002, Tunis, TunisiaEarth Sciences Department, Faculty of Sciences of Bizerte (FSB), Carthage University, 7021, Jarzouna, TunisiaGeotechnical and Georisks Engineering Laboratory, University of Tunis El Manar, National Engineering School of Tunis (ENIT), b.p 37. 1002, Tunis, TunisiaSustainable management and monitoring of groundwater resources are critical for ensuring their availability for drinking, agriculture, and industry worldwide. In Bizerte, Tunisia (Southwest Mediterranean region), this need is particularly urgent due to rising demand and contamination risks, aligning with Sustainable Development Goal 6 (SDG 6), which seeks to ensure the availability and sustainable management of water and sanitation for all. This research aims to enhance groundwater management and assess contamination risks in Bizerte using the Analytic Hierarchy Process (AHP). A multidisciplinary approach was adopted, integrating multi-criteria analysis and a spatially referenced hydrogeological information system. Eight thematic layers, geomorphology (0.15), slope (0.10), lineament density (0.12), drainage density (0.10), land use/land cover (0.08), precipitation (0.20), lithology (0.15), and soil (0.10) were analyzed for their impact on groundwater availability. Weights were assigned via an AHP-based pairwise comparison matrix and integrated using Geographic Information System (GIS) technology to generate a groundwater potential map. The analysis revealed that approximately 60% of the area has significant groundwater potential, with 30% classified as high potential zones and 30% as moderate potential zones. Vulnerability to contamination was assessed, showing that 20% of the area is at risk, primarily due to agricultural activities, industrial discharges, and inadequate waste management. The results highlighted the need for continuous monitoring and effective management strategies, underscoring the importance of a holistic approach in groundwater management to provide a robust decision-making framework.http://www.sciencedirect.com/science/article/pii/S2665972725000182Groundwater potentielBizerteAHPVulnerabilityContamination
spellingShingle Cyrine Belhadj
Rihab Riahi
Abdelaziz Sebei
Sinda Sifi
Noamen Rebai
Advanced groundwater potential and contamination vulnerability assessment using integrated GIS-based AHP techniques: A case study from the Bizerte watershed, Tunisia
Environmental and Sustainability Indicators
Groundwater potentiel
Bizerte
AHP
Vulnerability
Contamination
title Advanced groundwater potential and contamination vulnerability assessment using integrated GIS-based AHP techniques: A case study from the Bizerte watershed, Tunisia
title_full Advanced groundwater potential and contamination vulnerability assessment using integrated GIS-based AHP techniques: A case study from the Bizerte watershed, Tunisia
title_fullStr Advanced groundwater potential and contamination vulnerability assessment using integrated GIS-based AHP techniques: A case study from the Bizerte watershed, Tunisia
title_full_unstemmed Advanced groundwater potential and contamination vulnerability assessment using integrated GIS-based AHP techniques: A case study from the Bizerte watershed, Tunisia
title_short Advanced groundwater potential and contamination vulnerability assessment using integrated GIS-based AHP techniques: A case study from the Bizerte watershed, Tunisia
title_sort advanced groundwater potential and contamination vulnerability assessment using integrated gis based ahp techniques a case study from the bizerte watershed tunisia
topic Groundwater potentiel
Bizerte
AHP
Vulnerability
Contamination
url http://www.sciencedirect.com/science/article/pii/S2665972725000182
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