الفهرس 
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Abstract
SUMMARV AND CONCLUSIONS
33° 15 west and 33° 45 east and latitude: 280 5
was investigated through an area extending between; longitude:
El- Qaa plain located at the southern part of Sinai
and 28° 25 north. south
logical characteristics of the selected profile~.
1 I. \ .-+
Aerial photo interpretation was used to study the pedo-
PhYSical, chemical and mineralogical analysis as well as land
mations were gained about the soil and sUitability through
More infor-
~ I: .• ; , .
evaluation .
The results obtained can briefly presented as folows:
ted the presence of five main land types, namely
The aerial photograph. of the area under study sugges-
1- Coastal plain soils (C)
2- Main plain soils (P)
3- Outwash plain soils (0)
4- Foot slope soils (G)
5- Mountains ( 1-1 )
The soil texture was mainly coarse for to medium except profiles 0, 21 and 23) Which were of finer texture.
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Gravel content widely varied ranging from nile in
SOllie profiles to about 30.2 ~~ in profile (5).
Calcium carbonate content of soils ronged between
2.84 % in profile (11) and 46.34 % in profile (23).
Gypsum content was oftenly low, ranging between 0.1%
in profile (8) and 2.71 % in profile (7).
Soil organic matter content was evidently low ranging
between 0.15 % in profile (10) and 0.87 % in profile (20).
E.C. of soils ranged between 0.6 mmhos/ cm in profile
(7) and 104.5 mmhos/ em in profile (15). Profiles(l, 15 and
IB)were very highly saline (E.C. ~ 16 mmhos/ em), profiles
(II and 20), were non saline (LC.<4 mrnhos/ em), profiles
(7, 8 and 17) varied between non saline to moderately saline
(E.C.~ 8 mmhos/cm), the other profiles varied within
their layers from non saline to highly saline.
Sodium adsorption rati~, (S.A.R.) values varied between
0.78 in profile (21) and 81.7 in profile (1), such
this v~lues of S.A.R. occurred specifically in the high- clay
content profiles.
Cation exC-,+dge capacity (C.E.C.) ranged between 5.09
meq/lUO 9 in profi” (18) and 47.43 meq/ 100 9 in profile (23)
mainly dependentL9”.. ’i;the clay content 0 f soil profiles. ... ””,’..
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Excha~geable sodium percent (E.S.P.) varied between
2.35 and 27.3, the lowest value in prfoile (1), while
the highest one in profile (17) which suggested the presence
of sodicity in some soil profiles.
Soil pH values ranged between 6.8 and 8.6, the highest
value in profile (7), while the lowest one in profile
(17) .
The cumulative frequency curves and statistical size
parameters indicate the presence of stratification and hence
immature soil condition or recent depositions.
The mineralogical analysis of sand fraction showed
that the values derived from the index figure were generally
low suggesting a low content of heavy minerals in relation
to light ones in this soil fraction.
The dominant light minerals were quartz followed by
the feldspars, while the dominant heavy ones were pyroboles
and epidots. ,
In regard to the weathering ratios and ratios of the
resistant minerals show clearly that the soils under study
have a state of stratification and heterogeneity of parent
material.
This COncl~8ion may be a result of the contamination
of more than one sediment or of multi
regimes.
depositional
According to the triangUlar representation cited
by Kholief -et-al. (1969), the origin of the studied area contributed
to Nile - like sediments and/ or to local environments
prevailed during sedimentation in the past geological periods.
of Sortie (1937), Mansour (1979) and Shendi (1984), show that
Tentative evaluation based on the index rating approach
the soils of the Wadi plain can be generally ranked as ”Good”
for agricultural development.
may be recommended that the soils of ”Wadi plain” is quite re-
According to the conclusion, just mentioned before, it
liable to be introduced readily in the programs of desert soils
reclamation, provided that precautions should be taken for the
following :
Water quite enough supplementals in quantity and suitable
in quality for irrigation are needed and could be obtained
from artizian water as well as from rain fall controlled
through some small basins or dams.