Khatt soil series
The Khatt series is a very deep soil formed in loamy alluvial deposits. (UAE (NE018).
Taxonomic classification: Sodic Haplocambids, coarse-loamy, mixed, active, hyperthermic
Diagnostic subsurface horizon described in this profile is: Cambic horizon 15 to 110 cm.
The pH (1:1) ranges from 7.0 to 8.8 throughout the profile. The EC (1:1) is generally less than 2.5 dS/m in all horizons, but ranges to 10 in some areas that have been irrigated. The lower pH values are generally associated with the higher EC (1:1) values. SAR ranges mostly from 2 to 60 throughout the profile and is 13 or more in one or more layers within a depth of 100 cm. Some pedons have a deflation gravel lag on the surface covering 2 to 10% of the area. Gravel content is mostly 0 to 5% throughout the profile, but some pedons have layers with up to 55% gravel below depths of 100 cm.
The A horizon ranges from about 10 to 25 cm thick. It has hue of 7.5YR or 10YR, value of 5 to 7, and chroma of 3 or 4. Texture is fine sandy loam, very fine sandy loam, or loam.
The B horizon commonly extends to between 100 and 170 cm in most pedons, but may extend to more than 200 cm. Hue is 7.5YR or 10YR, value is 4 to 7, and chroma is 3 or 4. Texture is sandy loam, very fine sandy loam, or loam. In some pedons there is a 2Bkb horizon below 100 cm with 5 percent or more secondary calcium carbonate. It has color and texture similar to the B horizon.
The C horizon has hue of 7.5YR or 10YR, value 5 or 6, and chroma 3 or 4. It is very fine sandy loam, or loam, including gravelly or very gravelly texture modifiers. The C horizon is massive and generally contains some very fine stratification. It may be extremely weakly cemented to moderately cemented with carbonates. However, roots appear to be able to penetrate with a spacing of less than 10 cm. Some pedons do not have a C horizon within 200 cm.
Khatt soil series
The Khatt series is a very deep soil formed in loamy alluvial deposits. (UAE (NE018).
Taxonomic classification: Sodic Haplocambids, coarse-loamy, mixed, active, hyperthermic
Diagnostic subsurface horizon described in this profile is: Cambic horizon 15 to 110 cm.
The pH (1:1) ranges from 7.0 to 8.8 throughout the profile. The EC (1:1) is generally less than 2.5 dS/m in all horizons, but ranges to 10 in some areas that have been irrigated. The lower pH values are generally associated with the higher EC (1:1) values. SAR ranges mostly from 2 to 60 throughout the profile and is 13 or more in one or more layers within a depth of 100 cm. Some pedons have a deflation gravel lag on the surface covering 2 to 10% of the area. Gravel content is mostly 0 to 5% throughout the profile, but some pedons have layers with up to 55% gravel below depths of 100 cm.
The A horizon ranges from about 10 to 25 cm thick. It has hue of 7.5YR or 10YR, value of 5 to 7, and chroma of 3 or 4. Texture is fine sandy loam, very fine sandy loam, or loam.
The B horizon commonly extends to between 100 and 170 cm in most pedons, but may extend to more than 200 cm. Hue is 7.5YR or 10YR, value is 4 to 7, and chroma is 3 or 4. Texture is sandy loam, very fine sandy loam, or loam. In some pedons there is a 2Bkb horizon below 100 cm with 5 percent or more secondary calcium carbonate. It has color and texture similar to the B horizon.
The C horizon has hue of 7.5YR or 10YR, value 5 or 6, and chroma 3 or 4. It is very fine sandy loam, or loam, including gravelly or very gravelly texture modifiers. The C horizon is massive and generally contains some very fine stratification. It may be extremely weakly cemented to moderately cemented with carbonates. However, roots appear to be able to penetrate with a spacing of less than 10 cm. Some pedons do not have a C horizon within 200 cm.