Abstract:
This study was conducted in wadi soba which is located in sharg El
nail locality (Khartoum State) South East of Khartoum North with an
area of 200 feddan. The study area is part of the upper third terrace
with nearly flat surface. The climate is semi-desert dominated by hot
weather, few summer rain and cool winters. Semi-desert shrubs and
grasses are noticed throughout the area.
This study aimed to identify soil suitability of Wadi Soba. A semi
detailed Soil survey procedure was followed in the study area with
intensity of one observation per20 feddan.13 Soil observations (10
augers + 3 profiles) were done in the study area. The surface feature
and morphological description of the profile were done according to
FAO methodology, 44 soil samples were collected for physical
properties (mechanical analysis) and chemical properties (Ec, pH and
SAR). Based on surface feature, and analytical result three soil maps
were identified; Flat clay plain with sand sheet (A), Alluvium deposit
with removable sand Sheet (B)and Flat plain with sand sheet(C). The
results indicated the soil were developed on reworked very old
alluvium and local residuum materials. According to USA soil
taxonomy the soils were classified as to Typic Haplocambids, The all
soil are deep, non saline, non sodic. The texture is sandy clay loam to
clay loam and medium structural the area is generally a flat plain. The
soil developed from Aeolian reworked .According to land suitability
classification the study area is classified as S2mf, S3efm with erosion,
moisture and fertility limitations.
This study was recommended to add organic matter to enhance soil
fertility and control wind hazard by Shelter belts of parallel lines of
trees and bushes planted at short .Distances across the wind direction
inside the study area are essential to halt wind hazard