الفهرس 
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Abstract
The following paragraphs summarize the different aspects of the present work and the main conclusions achieved:Surface water samples were collected monthly during the period april-august 1988 at specified locations from the main irrigation system In other words twenty surface water samples were collected from the nile El-Ibrahimiya serry , bahr youssof canals and El-moheet at a rate of 5 samples for each monthy trip for collecting these samples a special sampling device was used. By using this sampler the water was collected from the middle of each stream at a depth of about one meter.Metorologically the annual precipilation is very rare with an average means of 0.26mm for 1987 and 0.34mmfor 1988.the mean annual values of temperature are 21.4Cand 21.7C AND THE MEAN RELATIVE HUMIDITY VALUES ARE About 56%and 55%for the above mentioned years.The Quaternary alluvial aquifer in the nole valley and the nile delta is considered as one of the most important and huge aquifers in the world.
:Isotopic And Hydrochemical Applications To The Surface And The Ground Water Assessments In El-Minia District ,Egypt /