الفهرس 
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Abstract
The study area is located at 70Km south west of Alexandria city in Banger Elsokar,
Egypt. The study aims to build up geographic digital database related to this area for
evaluation the characteristics and prosperities of the soil. This plays a great role in
choosing the best suitable kinds of crops to be grown on the study area through integration
of the Geographic Information System (GPS) and the Evaluation program used (ALESArid) and also using the (GPS). ALES-Arid aimed to evaluate the fitness of different land
types to produce different crops (field crops, vegetables, forage crops and fruit trees) to
identify the optimum land use. A total of 46 (augers); which soil covers a total area of
7079.44 hectars. Soil samples were collected for laboratory determinations. Also, irrigation
water samples were collected from EL-Nasr canal.
This study consists of several main steps:
1- Data preparation Stage: which included inputting maps of the study area that
were carried out using the satellite images to facilitate using it by the Arc-GIS program.
2-Field-work Stage: in this stage, the GPS was used to pinpoint the surface and sub
surface samples and collecting it from the field-work in addition to collecting irrigation
sample.
3- Laboratory Analysis Stage: which was directed to the analysis of the soil
samples for chemical, physical and the so the irrigation water samples.
4- Data Analysis Stage: which was related to the analysis and manipulation and the
results of the data to know the best way of using the soil.
The main results of this research are as following:
* DEM was obtained from the digital contour map, using the interpolation technique.
The elevation of the study area ranged from 65m A.S.L.at the East part to 16m, A.S.L. at
the north part. The analysis of digital elevation model indicated that the elevation of the
study area decrease gradually towards the southern part of the study area.
* According to grain size analysis, soil texture is generally coarse with very low
percentage of clay and silt content. Sand percentage ranged between 45.52 and 84.80%
median 71.90 in surface and 38.80 and 80.40% median 61.65 in sub surface. which means
that the dominant class of soil texture is sandy loam to sandy clay loam.
* Soil salinity varies in wide range among the studied soil samples ds/m, which means
that the soil are non saline to high saline