Kuderah soil series
The Kuderah series is a very deep soil formed in stratified sandy and gravelly alluvial deposits. (UAE (NE007).
Taxonomic classification: Typic Torriorthents, sandy, mixed, hyperthermic
Diagnostic subsurface horizon described in this profile is: none
Typic Torriorthents are fixed on the driest Torriorthents. Typic Torriorthents are extensive soils in the intermountain States of the United States. Most of them have moderate or strong slopes and are used only for grazing. Others that have gentle slopes are irrigated. The gently sloping soils are mostly on fans or piedmont slopes where the sediments are recent and have little organic carbon.
Some part of the particle-size control section has 35% or more gravel. The pH (1:1) ranges from 7.0 to 8.8 throughout the profile. The EC (1:1) is generally less than 1.0 dS/m in all horizons, but may be higher in some areas that have been irrigated. A desert pavement of fine and medium gravel in many areas covers 2 to 15% of the soil surface.
The A horizon ranges in thickness from 10 to 25 cm. Hue is 7.5YR or 10YR, value is 5 to 7, and chroma is 3 or 4. Texture is fine sand, loamy fine sand, sandy loam, or fine sandy loam, including gravelly texture modifiers. A thin layer of loam or silt loam overwash may be present on the surface of pedons in some wadis as a result of brief ponding and sedimentation after heavy rains.
The C horizon has hue of 7.5YR, or 10YR, value of 5 to 7, and chroma of 3 to 6. It is sand, fine sand, loamy fine sand, loamy sand, or coarse sand, including gravelly, or very gravelly texture modifiers. Fine to medium gravel ranges from 0 to 55% in individual horizons above 100 cm, and may be as much as 75% in some horizons below 100 cm.
Some pedons have a 2B horizon beginning at depths of between 100 and 150 cm. It has hue of 7.5YR or 10YR, value of 5 or 6, and chroma of 3 or 4. It is sandy loam, loamy sand, loamy fine sand, loamy coarse sand, or coarse sand including gravelly, very gravelly, or extremely gravelly texture modifiers. The 2B horizon may be extremely weakly to moderately cemented with carbonates. However, roots appear to be able to penetrate with a spacing of less than 10 cm.
Kuderah soil series
The Kuderah series is a very deep soil formed in stratified sandy and gravelly alluvial deposits. (UAE (NE007).
Taxonomic classification: Typic Torriorthents, sandy, mixed, hyperthermic
Diagnostic subsurface horizon described in this profile is: none
Typic Torriorthents are fixed on the driest Torriorthents. Typic Torriorthents are extensive soils in the intermountain States of the United States. Most of them have moderate or strong slopes and are used only for grazing. Others that have gentle slopes are irrigated. The gently sloping soils are mostly on fans or piedmont slopes where the sediments are recent and have little organic carbon.
Some part of the particle-size control section has 35% or more gravel. The pH (1:1) ranges from 7.0 to 8.8 throughout the profile. The EC (1:1) is generally less than 1.0 dS/m in all horizons, but may be higher in some areas that have been irrigated. A desert pavement of fine and medium gravel in many areas covers 2 to 15% of the soil surface.
The A horizon ranges in thickness from 10 to 25 cm. Hue is 7.5YR or 10YR, value is 5 to 7, and chroma is 3 or 4. Texture is fine sand, loamy fine sand, sandy loam, or fine sandy loam, including gravelly texture modifiers. A thin layer of loam or silt loam overwash may be present on the surface of pedons in some wadis as a result of brief ponding and sedimentation after heavy rains.
The C horizon has hue of 7.5YR, or 10YR, value of 5 to 7, and chroma of 3 to 6. It is sand, fine sand, loamy fine sand, loamy sand, or coarse sand, including gravelly, or very gravelly texture modifiers. Fine to medium gravel ranges from 0 to 55% in individual horizons above 100 cm, and may be as much as 75% in some horizons below 100 cm.
Some pedons have a 2B horizon beginning at depths of between 100 and 150 cm. It has hue of 7.5YR or 10YR, value of 5 or 6, and chroma of 3 or 4. It is sandy loam, loamy sand, loamy fine sand, loamy coarse sand, or coarse sand including gravelly, very gravelly, or extremely gravelly texture modifiers. The 2B horizon may be extremely weakly to moderately cemented with carbonates. However, roots appear to be able to penetrate with a spacing of less than 10 cm.