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：463-468
出版社：University of Mohammed Premier Oujda
摘要：The region of El-Ghrous, has known an important agricultural rise which required the extensive use of inputs, where the risk to cause pollution of ground water in the region (Mio-Pliocene and Lower Eocene). These two layers are collected from boreholes of which there are 40 holes at the lower of the Eocene and 13 at the Mio-Pliocene. Chemical analysis conducted in the laboratory of CRSTRA ( November 2010), showed that the water was particularly rich in SO42-, Ca2 +, Na+, K+, Mg2+and HCO3-. In detail, we note that the sulfates are high concentrations reaching values ranging from 1.43 g.l-1 to 3.14 g.l-1 in the water of the Mio-Pliocene and 0.16 g.l-1to 2.24 g.l-1in the water from the lower Eocene, which gives the water a calcium sulfate facies sometimes to sodium sulfate. The measured conductivity is still high for the waters of the Mio-Pliocene with 5.62 mS/cm; however we notice relatively drop for the waters of the lower Eocene (2.55mS/cm). These concentrations determined, led to the calculation of the SAR. The latter combined with the conductivity to determine the suitability of ground water for irrigation
关键词：El;Ghrous ; Mio;Pliocene ; Lower Eocene ; chemicals major; index SAR ; irrigation suitability.
