الفهرس 
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Abstract
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1. Soils of Wadi Qena and Wadi El-laquita are located in
the Eastern desert of Egypt between latitudes 250 34’
30” and 26° 30’ 0” N. and longitudes 320 39’ 0” and 330
19’ 15” E. Prevailing climatic conditions are extremely
arid. Landforms are Plateau. Hills, Rubble Terraces.
Wadis. Alluvial Fans, Outwash Plains. Sand Sheets and
Sand Dunes. Wet climatic conditons during the Pliocene-
Pleistocene eras must have caused denudation to plateaux
and formation of Wadis. Present climatic conditions must
have affected the morphological features of landscape
and soil profiles.
2. Differences in soil morphology are mostly related to
texture. gravels, and/or depth to gravel zone. Soil
colour ranged between 10 YR and 7.5 YR (Dry). Soil
texture was mainly light and ranged from sand to clay
loam. Structure was dominated by ”single grain” in the
sandy soil and ”massive” in the heaVier soils.
Boundaries were abrupt smooth to diffuse.
3. Statistical-size parameters refer to sedimentation being
the main process of alluvial soils. Stratifica-tion
refer to heterogeneity of soils parent material as
revealed by values of ”sorting”. ”skewness”. and
”kurtosis”. Available moisture capacity ranged from 5.30
to 15.02% (w/w) and soils ranged from non-saline to
extremely saline. Soil pH ranged from 7.1 to 8.4 With
very low organic matter « 1%). CaC03 ra’nged from 1.5 to
57%.
4. Clay fraction was dominated by smectite. Kaolinite and
interstratified minerals were the second domendnt groups
followed by palygorskite, hydrous mica. sepiolite.
chlorite, ’vermiculite. talc and hallocysite. Differences
between mineralogical composition seem to be related
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mostly to sedimentation processes and parent materials.
5. soils are recent form the pedological point of view.
Differences between profiles of different landforms and
between horizons are ascribed to g~ogenesis rather than
pedogenesis.
6. Classification of soils form the pedological VIew point
according to the USDA ”TAXONOMY” System revealed that
they are ENTISOLS. and belong to the PS£!flITlentesnd
OY~hents suborders. The SUbgroups recognized are Typic
Tc~rri~~ITI!!}~1Jatn~d IYRi.<2 Ton.~iortJl~D.t.E.
7. Classification of soils from the land capability view
point according to the FAO System. revealed that soils
contain lands which are marginally suitable. lands which
are currently not suitable and lands which are
permanently not suitable.