AD122 Typic Petrogypsids

NOTE:

Original classification based on USDA-Keys to Soil Taxonomy, 10th Edition, 2006:

Typic Petrogypsids, sandy, gypsic, hyperthermic, shallow

Updated classification based on UAE-Keys to Soil Taxonomy, 2014:

Salidic Petrogypsids, sandy, gypsic, hyperthermic

 

AD122 are shallow, sandy soils with gypsum occurring from the surface, are moderately to strongly saline in a layer 10 cm or more thick, and a petrogypsic layer within 50cm of the soil surface. They occupy the nearly level parts of inland gently undulating plain and higher parts of inland and coastal sabkha. They are well drained or moderately well drained soils and have moderately rapid or rapid permeability.

 

These soils remain as barren land or in some places have been leveled for agroforestry or sometimes used for low intensity grazing by camel, sheep or goats. They frequently have less than 5% vegetation cover of Cornulaca arabica, Cyperus conglomeratus, Fagonia ovalfolia, Haloxylon persicum, Haloxylon salicornicum and Zygophyllum spp.

 

Plate 20: Typical soil profile and associated landscape for Typic Petrogypsids, sandy, gypsic, hyperthermic, shallow (Soil AD122).

Done