Abstract

This study was conducted at Fehada oasis which located in the westerin desert (45km) south of Al-Quam constituency to identified the soil distribution within the oasis . The semi detailed survey operation was carried using the free lance soil survey method to study its soil and classified them also to prepare soil maps to this oasis. soil were classified accourding to U.S.D.A. S.S. 1998 system to Aridisols in order and Argids to sub order, and completed to soil series accourding to soil classification system suggested by Al-agidi 1981 .after that we was limited the positions of wanted pedons within the oasis. The pedons were disclosed and described morphologicaly and get samples for laboratory analysis. The results was showed existence two soil series within the oasis first is 142CCE which was desert soil series developed from limestone origin materals with fine texture, establish 75.9% from total area of oasis (1267donums) ,Most land of this series was cultivated with shadow trees, olves, pear and wheat crop . However second series its 132CCE which characteristics its desert soil series developed also from limestone orgin materals with moderate texture, established 23.8% from total area of the oasis (3979donums) accourding to the results we established the soil survey maps to the oasis with scale 1/20000.

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