Abstract
The study area is located in the Eastern desert part of the Nile valley ofAssiut Governorate, and covers about 56670 feddans. The objective of this studyis to evaluate the soils of Wadi El Assiuty for the agricultural development usingremote sensing data. The obtained physiographic units in the study area and theassociated soils that represented by ten soil profiles were attributed as:(1) Gently undulating to undulating oldest alluvial terraces which include the taxonomicunits of Typic Clacigypsids, loamy-skeletal, mixed, hyperthermic as dominated soils,and Typic Clacigypsids, coarse-loamy, gypsic, hyperthermic, as minor soils.(2) Almost flat to gently undulating old alluvial terraces have the taxonomic units ofTypic Haplocalcids, sandy-skeletal, mixed, hyperthermic as dominant soils, whileTypic Clacigypsids, coarse-loamy, mixed,hyperthermic, as minor soils.(3) Young alluvial terraces includes Typic Haplocalcids, sandy, mixed, hyperthermic asdominant soils.(4) Wadi bottoms includes the taxonomic units of Typic Torriorthents, sandy-skeletal,mixed, hyperthermic and Typic Torriorthents, sandy, mixed, hyperthermic.(5) Dissected Rockland which are not promising area for the agricultural land use.The current and potential suitability of the studied soils for irrigatedagriculture were estimated. The obtained results indicate that all soils inits present condition have no to slight intensity of limitations for wetness,soil depth, calcium carbonate and gypsum contents. The soil textureincluding gravel, salinity and alkalinity, and soil topography are the mosteffected soil limitations. The obtained current suitability classes aredominated by the marginally suitable one (S3), with exception thecurrently not suitable (N1) of the oldest terraces soils. All the studied soilprofiles can be potentially classified as moderately suitable (S2), whichrefers to its suitability after major soil improvements.
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