CONTRIBUTION TO THE HYDROCHEMICAL STUDY OF GROUNDWATER IN THE PLAIN OF MELLAGOU - BOUHMAMA (NORTHEAST ALGERIA)
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Date
2024-02-07
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Carpathian Journal of Earth and Environmental Sciences February
Abstract
Abstract: The groundwater of Bouhmama shows important chemical variations induced by the aridity of
the climate, mineral dissolution and agricultural activity. The use of geochemical techniques has identified
that the evolution of the chemical facies takes place from the calcium bicarbonate pole in the limestone
outcrops in the West towards a major facies of calcium sulfate type in the center and downstream of the
plain. These chemical facies are determined by the water-rock interaction, dissolution and mineral
precipitations, through cationic exchanges along the water flow towards its outlet and the infiltration of
irrigation waters loaded with salts and fertilizers in the irrigated perimeters. PCA (Principal Component
Analysis) explaining 85.64% of the variance shows that except for bicarbonates all elements are responsible
for the mineralization of groundwater.