Ar Riwedah soil series
Ar Riwedah soil series (NE008) UAE
The Ar Riwedah series is a very deep soil formed in loamy alluvial deposits underlain by sandy and gravelly alluvial deposits.
Taxonomic classification: Typic Torriorthents, coarse-loamy, carbonatic, hyperthermic
Diagnostic subsurface horizon described in this profile is: None. The finely stratified nature of the horizons and lack of structure prevents this soil from being classified as having a cambic horizon. Also, the soil was not classified with a contrasting particle-size class due to the diffuse boundary (greater than 12.5 cm) between the loamy and sandy horizons.
One-half or more of the particle-size control section has texture finer than very fine sand. The pH (1:1) ranges from 7.0 to 8.5 throughout the profile. The EC (1:1) is generally less than 2.0 dS/m in all horizons, but ranges to 4.0 in some pedons. EC (1:1) may be higher in some areas that have been irrigated.
The A horizon ranges from about 10 to 20 cm thick. It has hue of 10YR, value of 5 to 7, and chroma of 3 or 4. Texture is loamy fine sand, fine sandy loam, sandy loam, or loam.
The C horizon commonly extends to depths of between 60 and 100 cm, but may extend to more than 200 cm in some places. Hue is 10YR, value is 5 to 7, and chroma is 2 to 4. Texture is sandy loam, fine sandy loam, or loam, including gravelly texture modifiers. Gravel content ranges from 0 to 20%.
The 2C horizon has hue of 7.5YR or 10YR, value 5 or 6, and chroma 2 to 4. It is sand, coarse sand, loamy sand, sandy loam, or fine sandy loam, including gravelly to extremely gravelly texture modifiers. Gravel content ranges from 5 to 70%. The 2C horizon may be extremely weakly or weakly cemented with carbonates. Horizon boundaries between loamy and sandy materials are gradual to diffuse.
For more information about describing soils, visit:
www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052523...
For additional information about soil classification using Soil Taxonomy, visit:
sites.google.com/site/dinpuithai/Home
For more information about soil classification in the UAE, visit:
www.biosaline.org/publications/united-arab-emirates-keys-...
Ar Riwedah soil series
Ar Riwedah soil series (NE008) UAE
The Ar Riwedah series is a very deep soil formed in loamy alluvial deposits underlain by sandy and gravelly alluvial deposits.
Taxonomic classification: Typic Torriorthents, coarse-loamy, carbonatic, hyperthermic
Diagnostic subsurface horizon described in this profile is: None. The finely stratified nature of the horizons and lack of structure prevents this soil from being classified as having a cambic horizon. Also, the soil was not classified with a contrasting particle-size class due to the diffuse boundary (greater than 12.5 cm) between the loamy and sandy horizons.
One-half or more of the particle-size control section has texture finer than very fine sand. The pH (1:1) ranges from 7.0 to 8.5 throughout the profile. The EC (1:1) is generally less than 2.0 dS/m in all horizons, but ranges to 4.0 in some pedons. EC (1:1) may be higher in some areas that have been irrigated.
The A horizon ranges from about 10 to 20 cm thick. It has hue of 10YR, value of 5 to 7, and chroma of 3 or 4. Texture is loamy fine sand, fine sandy loam, sandy loam, or loam.
The C horizon commonly extends to depths of between 60 and 100 cm, but may extend to more than 200 cm in some places. Hue is 10YR, value is 5 to 7, and chroma is 2 to 4. Texture is sandy loam, fine sandy loam, or loam, including gravelly texture modifiers. Gravel content ranges from 0 to 20%.
The 2C horizon has hue of 7.5YR or 10YR, value 5 or 6, and chroma 2 to 4. It is sand, coarse sand, loamy sand, sandy loam, or fine sandy loam, including gravelly to extremely gravelly texture modifiers. Gravel content ranges from 5 to 70%. The 2C horizon may be extremely weakly or weakly cemented with carbonates. Horizon boundaries between loamy and sandy materials are gradual to diffuse.
For more information about describing soils, visit:
www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052523...
For additional information about soil classification using Soil Taxonomy, visit:
sites.google.com/site/dinpuithai/Home
For more information about soil classification in the UAE, visit:
www.biosaline.org/publications/united-arab-emirates-keys-...