Fig. 5.15 Typic Petrogypsids (AD226)

            Taxonomic classification: Typic Petrogypsids, sandy, mixed, hyperthermic

The Ghutail series is a moderately deep sandy soil overlying a petrogypsic layer. The soils are typically moderately well to excessively drained. They occur on flats and gentle slopes within level to gently undulating deflation plains and occasionally on sand sheets. They are formed from eolian sands that overlie petrogypsic materials. 

These soils are used for rangeland grazing of camels though vegetation cover is frequently less than 5%. Common vegetation species recorded are Haloxylon salicornicum with occasional Zygophyllum spp. and Stipagrostis plumosa.

This soil is common in the As Sila’ sub-area and the northern part of the Ghayathi sub-area. Occasional sites were also described in the Al Ain sub-area.

The main feature of this soil is the moderate depth (<100cm) to a petrogypsic horizon. The soil material above the hardpan is sandy and also contains a gypsum horizon. The limited depth to the hardpan layer is the main restriction for this soil. This restricts water movement, moisture retention and presents a barrier to root development further restricting the availability of nutrients. The presence of gypsum suggests that salinity might be a problem under irrigation. Soil subsidence may also be an issue as gypsum is leached from the soil under irrigation. This soil is considered unsuitable for irrigated agriculture.

Taken on: January 1, 2006

Sets appears in: • UAE (Natural Resources Inventories)

Stats: 86 views

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