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AD108 Typic Calcigypsids, lithic

NOTE:

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

Typic Calcigypsids, sandy, mixed, hyperthermic, lithic phase

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

Salidic Calcigypsids, sandy, mixed, hyperthermic, lithic

 

AD108 are a phase of soil AD107 with which they often occur in association. They differ from the parent soil in that a lithic contact, typically calcareous sandstone, is encountered at some depth below 50cm but within 200cm and are moderately to strongly saline in a layer 10 cm or more thick, within 100 cm of the soil surface. In other properties this soil is essentially the same as the parent soil. The majority of sites recorded a soil drainage of moderately well to excessively drained reflecting the typically sandy nature of the soil materials. Soil Permeability is high above the lithic contact.

 

These soils predominantly remain as barren land support low intensity grazing by sheep, camels and goats. Occasional sites recorded greater than 5% vegetation cover. Dominant plant species recorded include Haloxylon salicornicum and Zygophyllum spp.

 

This minor soil occurs as a few scattered sites. The soils occur predominantly in the north-east of the Emirate but have also been described in western parts adjacent to Sabkhat Matti.

 

(No photo in published survey.)

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Uploaded on December 2, 2010
Taken sometime in 2007