STUDIES ON SOME SOILS OF SIWA OASIS Soil CLASSIFICATION AND LAND SUITABILITY EVALUATION OF EL-MARAQUI AND KHAMISA REGIONS

Arroug,, S. M. M.; Abd- Elall, Nashida I.; Abdel-Nabi, A. O.; Salem, M. Z.

doi:10.21608/jssae.2002.254774

STUDIES ON SOME SOILS OF SIWA OASIS Soil CLASSIFICATION AND LAND SUITABILITY EVALUATION OF EL-MARAQUI AND KHAMISA REGIONS

Document Type : Original Article

Authors

Soil, Water and Environment Res. Inst., Agric. Res. Center , Giza, Egypt.

10.21608/jssae.2002.254774

Abstract

Twenty five soil profiles representing El-Maraqui and Khamisa Regions in Siwa Oasis, were studied in the filed, seven out of them were selected to represent different soil mapping units. The soil profiles were classified and land suitability evaluation were estimated using Soil Taxonomy and Sys and Verheye system.
On the basis of soil morphological, physical, and chemical properties, the soils were classified into the following mapping units:
1- Pediplain soils: Calcic Aquisalids, fine loamy, moderatlly deep to shallow, undulating to gently undulating on pediplains. The soil are marginally suitable (S3nt) for irrigated agriculture.
2- Sandyplain soils: I. Calcic Aquisalids, sandy, very deep sandy or loamy sand through out the profiles, almost flat on sandy plains. The soil arenot suitable (N1nt) for irrigated agriculture.
II. Typic Haplo Calcic, sandy, very deep, loamy sand over sandy loam, almost flat on sandy plains. The soil are marginally suitable (S3nt) for irrigated agriculture.
3- Sabkha soils: Calcic Aquisalids, sandy, very deep, sandy or loamy sand through out the profiles, nearly level on Sabkha. The soils are not suitable (N1nt) for irrigated agriculture .

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