期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2011
卷号：2
期号：S1
页码：459-462
出版社：University of Mohammed Premier Oujda
摘要：The region of El Ghrous oriented to agricultural purpose, the irrigation in this area is made from water of the Moi-Pliocene aquifer and lower Eocene. Analysis of major elements and nitrates performed on these waters, shows higher concentrations. As an example : Na (> 400 mg / l), Ca (> 723 mg / l), Mg (> 310 mg / l), Cl (> 850 mg / l), SO4 (> 4000 mg / l) and NO3 (> 175 mg / l) for the sheet of Miopliocène. As regards to lower Eocene ,we find the following concentrations: Na (> 400 mg / l), Ca (> 700 mg / l), Mg (> 250 mg / l), Cl 1000 mg / l), SO4 ( > 2000mg / l) and NO3 (<50 mg / l). To determine the apparent links between the chemical elements, we conducted a principal components analysis. The observation of the PCR circle, bring out the mineralization of water caused primarily by chlorides and sulphates on the anions side and all cations (Ca, Mg, Na and K) indicating a similar source. It is less influenced by bicarbonates. Nitrates that are not correlated to any elements seem to have an anthropogenic origin
