Fig. 5.21 Petrogypsic Lithic Haplosalids (AD235)
Taxonomic Classification: Petrogypsic Haplosalids, sandy, mixed, hyperthermic, shallow (USDA-Keys to Soil Taxonomy, 11th Edition, 2010)
Updated Taxonomic Classification: Petrogypsic Lithic Haplosalids, sandy, mixed, hyperthermic (UAE-Keys to Soil Taxonomy, 2014)
The Al Hamra series is a shallow sandy soil overlying a petrogypsic layer. The soils are typically well to excessively drained. They occur on flats and depressions within level to gently undulating deflation and sabkha plains. They are formed from eolian sands that overlie petrogypsic materials.
These soils predominantly occur on depressions and flats within level to gently undulating deflation and sabkha plains. 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% and often absent. Common vegetation species recorded are Haloxylon salicornicum with occasional Zygophyllum spp.
This soil has been described from the northern part of the Ghayathi sub-area and is also relatively common within the As Sila’ sub-area. Occasional sites have also been described in the Al Ain subarea. The main feature of this soil is the shallow depth (<50cm) to a petrogypsic horizon and the high salinity levels in the soil overlying the hardpan. The soil material above the hardpan is sandy and also contains gypsum. The high level of salinity and limited depth to the hardpan layer are major constraints to the irrigable use of this soil. Limited depth to the hardpan layer restricts water movement, moisture retention and presents a barrier to root development further restricting the availability of nutrients. This soil is considered unsuitable for irrigated agriculture.
Fig. 5.21 Petrogypsic Lithic Haplosalids (AD235)
Taxonomic Classification: Petrogypsic Haplosalids, sandy, mixed, hyperthermic, shallow (USDA-Keys to Soil Taxonomy, 11th Edition, 2010)
Updated Taxonomic Classification: Petrogypsic Lithic Haplosalids, sandy, mixed, hyperthermic (UAE-Keys to Soil Taxonomy, 2014)
The Al Hamra series is a shallow sandy soil overlying a petrogypsic layer. The soils are typically well to excessively drained. They occur on flats and depressions within level to gently undulating deflation and sabkha plains. They are formed from eolian sands that overlie petrogypsic materials.
These soils predominantly occur on depressions and flats within level to gently undulating deflation and sabkha plains. 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% and often absent. Common vegetation species recorded are Haloxylon salicornicum with occasional Zygophyllum spp.
This soil has been described from the northern part of the Ghayathi sub-area and is also relatively common within the As Sila’ sub-area. Occasional sites have also been described in the Al Ain subarea. The main feature of this soil is the shallow depth (<50cm) to a petrogypsic horizon and the high salinity levels in the soil overlying the hardpan. The soil material above the hardpan is sandy and also contains gypsum. The high level of salinity and limited depth to the hardpan layer are major constraints to the irrigable use of this soil. Limited depth to the hardpan layer restricts water movement, moisture retention and presents a barrier to root development further restricting the availability of nutrients. This soil is considered unsuitable for irrigated agriculture.