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Monitoring of Groundwater Suitability for Irrigation Under Severe Arid Conditions: Case Study of Aquifer in Rjim Maatoug, Tunisia
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Author(s): Soumaya Hajji (LR3E, ENIS, University of Sfax, Tunisia), Sedki Karoui (Faculty of Economics and Management Sciences, University of Sfax, Tunisia), Nabila Allouche (LR3E, ENIS, University of Sfax, Tunisia)and Salem Bouri (LR3E, ENIS, University of Sfax, Tunisia)
Copyright: 2022
Pages: 20
Source title:
Handbook of Research on Water Sciences and Society
Source Author(s)/Editor(s): Ashok Vaseashta (International Clean Water Institute, USA & Transylvania University of Brasov, Romania & Academy of Sciences of Moldova, Moldova), Gheorghe Duca (Institute of Chemistry, Moldova State University, Moldova & Academy of Science of Moldova and Romanian Academy, Romania.)and Sergey Travin (Federal Research Center for Chemical Physics and N. N. Semenov of the Russian Academy of Sciences, Russia)
DOI: 10.4018/978-1-7998-7356-3.ch027
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Abstract
Water quality assessment is a necessity for groundwater resource management, especially in arid regions. Nevertheless, many difficulties appear in choosing the most appropriate models for the evaluation of water suitability. The present study reports the groundwater (GW) suitability for irrigation purposes in Rjim Maatoug, Southwestern Tunisia, where the Complex Terminal (CT) aquifer is solicited by the growing population needs. To attempt the objective of this study, EFA-CFA method was undertaken using the hydro-chemical, hydro-geological, and statistical approaches. Based on water wells data, hydro-chemical results show that the rock-water interaction and climatic conditions are the main origins of water mineralization. The application of the EFA-CFA method to the groundwater allowed identifying two factors of water degradation: (1) natural, due to the water-rock interaction and climatic conditions, and (2) anthropogenic, mainly due to the excessive use of chemical fertilizers. The results show that the groundwater in the study area is considered unsuitable for irrigation.
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