Contribution of the multivariate analysis and origin for groundwater quality of mixed aquifer in the M'sila plain (Algeria)
by Mostefa Dougha; Mahmoud Hasbaia
International Journal of Hydrology Science and Technology (IJHST), Vol. 9, No. 2, 2019

Abstract: The change of climate and intensive exploitation of groundwater resources in the plain of M'sila has influenced the hydrochemical functioning of the complex aquifer. This resulted in a decrease in the piezometric level of groundwater. The multivariate statistical techniques were used to determine the main factors and regrouping parameters/wells and to understand the origin of groundwater chemistry. Multivariate analysis (principal component analysis and cluster analysis) was performed to identify a common source for sampling data of a semi-arid aquifer. Physicochemical analyses were conducted on the waters of 17 wells. The chemical water classification shows the dominance of a chlorinated calcium and magnesium sulphate type facies, which has a very remarkable tendency towards the salinisation. Cluster analysis based on major parameters contents defined four main chemical water groups with increased water-rock interaction. Some parameters presented the highest concentrations of the total of dissolved salts provoking a poor quality of water.

Online publication date: Tue, 05-Mar-2019

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