Uhland soil series
Note: The left side of the photo exhibits natural soil structure. The right side has been smoothed.
A representative soil profile of the Uhland soils series. (Soil Survey of Robertson County, Texas; by Harold W. Hyde, Natural Resources Conservation Service)
The Uhland series consists of very deep, moderately well drained, moderately slowly permeable soils that formed in alluvium. These soils are in nearly level flood plains. Slopes range from 0 to 1 percent.
TAXONOMIC CLASS: Coarse-loamy, siliceous, superactive, thermic Aquic Haplustepts
The depth of alluvial sediments ranges from about 6 to 15 feet. The solum is more than 80 inches thick. Reaction ranges from moderately acid to slightly alkaline throughout. Average clay content of the 10- to 40- inch particle-size control section ranges from 10 to 18 percent. There is an irregular decrease in organic carbon and most pedons have a buried A horizon within the particle-size control section. Redox depletions and aquic conditions are in some subhorizon within a depth of 20 to 30 inches of the soil surface during most years. Most pedons have few to about 5 percent siliceous and/or ironstone pebbles, mainly less than one half inch across, in some horizons. Iron manganese concretions and/or masses range from few to common in some horizons.
USE AND VEGETATION: Most areas are used for improved pasture or rangeland. Native vegetation includes scattered oak, elm, and willow with an understory of indiangrass, switchgrass, panicles, sedges, and yauping.
DISTRIBUTION AND EXTENT: This soil occurs mainly in the Texas clasp area (MLRA 87A). The series is extensive.
This soil has been previously included with the Iuka series. The classification is changed from Aquic Ustifluvents to Aquic Ustochrepts (August, 1994) based on the results of a field study that indicates it has a cambic horizon. It should be noted that an alternative classification would be Fluvaquentic Ustochrepts. This subgroup is not presently in Soil Taxonomy. Texas plans to submit a proposal to include the Fluvaquentic subgroup in Ustochrepts.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/texas/TX395/0/...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/U/UHLAND.html
For acreage and geographic distribution, visit:
Uhland soil series
Note: The left side of the photo exhibits natural soil structure. The right side has been smoothed.
A representative soil profile of the Uhland soils series. (Soil Survey of Robertson County, Texas; by Harold W. Hyde, Natural Resources Conservation Service)
The Uhland series consists of very deep, moderately well drained, moderately slowly permeable soils that formed in alluvium. These soils are in nearly level flood plains. Slopes range from 0 to 1 percent.
TAXONOMIC CLASS: Coarse-loamy, siliceous, superactive, thermic Aquic Haplustepts
The depth of alluvial sediments ranges from about 6 to 15 feet. The solum is more than 80 inches thick. Reaction ranges from moderately acid to slightly alkaline throughout. Average clay content of the 10- to 40- inch particle-size control section ranges from 10 to 18 percent. There is an irregular decrease in organic carbon and most pedons have a buried A horizon within the particle-size control section. Redox depletions and aquic conditions are in some subhorizon within a depth of 20 to 30 inches of the soil surface during most years. Most pedons have few to about 5 percent siliceous and/or ironstone pebbles, mainly less than one half inch across, in some horizons. Iron manganese concretions and/or masses range from few to common in some horizons.
USE AND VEGETATION: Most areas are used for improved pasture or rangeland. Native vegetation includes scattered oak, elm, and willow with an understory of indiangrass, switchgrass, panicles, sedges, and yauping.
DISTRIBUTION AND EXTENT: This soil occurs mainly in the Texas clasp area (MLRA 87A). The series is extensive.
This soil has been previously included with the Iuka series. The classification is changed from Aquic Ustifluvents to Aquic Ustochrepts (August, 1994) based on the results of a field study that indicates it has a cambic horizon. It should be noted that an alternative classification would be Fluvaquentic Ustochrepts. This subgroup is not presently in Soil Taxonomy. Texas plans to submit a proposal to include the Fluvaquentic subgroup in Ustochrepts.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/texas/TX395/0/...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/U/UHLAND.html
For acreage and geographic distribution, visit: