These soils belong to Alfisols, Vertisols, Aridisols
Being an arid zone, the soils are classified as aridisols
, presenting serious limitations for agronomical uses.
The majority of soils are clayey ([greater than or equal to] 35% clay) Aridisols
with some areas of coarse-loam (Natural Resources Conservation Service).
Variability in and correlation between exchangeable sodium percentage and sodium adsorption ratio in the Aridisols
of the Sudan.
Major soils of the region are Inceptisols, Entisols, Aridisols
, Alfisols and their associations.
Browne and Plint (1994) and Plint and Browne (1994) report vertisols and aridisols
regionally and interpret them as having formed in a semi-arid climate with pronounced rainfall seasonality.
Pedogenic factors, especially the varying climate and topography, have caused the formation of various soil orders including Alfisols, Mollisols, Aridisols
, Entisols, and Inceptisols.
It is located in the Major Land Resource Area 40 of the Sonoran Desert (Natural Resources Conservation Service, 2006) and has soils that are primarily classified as Aridisols
, with small areas of Entisols and Andisols.
have developed in the driest inland portion of the region (Bracho & Sosa 1987, Contreras 1991, Ortega-Gutierrez et al.
The topics discussed include soil materials and weathering, US soil taxonomy, aridisols
: soils of dry regions, mollisols: grassland soils of steppes and prairies, and interpreting soil surveys and technical soil classification.