Edge soil series
The Edge series consists of deep, well drained soils that formed in loamy and clayey residuum derived from Eocene age, stratified, sandstone and mudstone. These nearly level to strongly sloping soils are on side slopes and interfluves on upland ridges. Slopes range from 1 to 12 percent. Mean annual precipitation is about 965 mm (38 in) and the mean annual air temperature is 19 degrees C (66 degrees F).
TAXONOMIC CLASS: Fine, mixed, active, thermic Udic Paleustalfs
Depth of solum: 100 to 150 cm (40 to 60 in), Deep
Depth of abrupt texture change: 18 to 84 cm (7 to 33 in)
Depth of argillic horizon: 13 to 84 cm (5 to 33 in)
Depth to secondary carbonates: Greater than 75 cm (30 in)
Redoximorphic features: Masses and concentrations of oxidized iron and iron depletions from 0 to 188 cm (0 to 74 in)
Soil moisture: Dry in some or all parts of the soil moisture control section for more than 90 or more cumulative days and moist in some parts either for more than 180 cumulative days per year or for 90 or more consecutive days in normal years. Ustic soil moisture regime
USE AND VEGETATION: The major uses are rangeland or improved pasture with a few cultivated areas. The native plant community is a savannah with scattered post oak, blackjack oak, and elm trees with ground cover of medium and tall native grasses. Present vegetation is a fairly dense cover of oak trees, yaupon, American beautyberry and hawthorn with shade tolerant grasses such as longleaf uniola. Many areas have been cultivated in the past. These old cropland fields are being used for rangeland or have been established to bermudagrass, bahiagrass or other improved pasture grasses. A few small areas have been planted to loblolly pine. Old fields being used for rangeland are typically producing low quality perennial grasses, annuals grasses, forbs and some fields are being invaded by mesquite.
DISTRIBUTION AND EXTENT: Land Resource Region J - Southwestern Prairies Cotton and Forage Region. East Central Texas. Texas Claypan Area, Southern Part (MLRA 87A). This soil is of large extent.
Freestone County, Texas; 1986. The Edge series was originally established in Brazos County, Texas in 1955. In May, 1963 the series was placed on the inactive list and the soils were included with the similar Axtell series. The Axtell soils are members of a fine, smectitic, thermic family of Udertic Paleustalfs. Axtell soils are typically on terraces or in valley fill positions and have a solum thicker than 152 cm (60 in)and with vertic properties. The re-defined Edge series has a concept similar to the original series established in Brazos County.
REMARKS: This pedon is within an area of Edge fine sandy loam, eroded. It is on a small area that is not eroded. These soils are not saturated in any part of the solum for more than 30 consecutive days during most years.
For a detailed description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/E/EDGE.html
For acreage and geographic distribution, visit:
Edge soil series
The Edge series consists of deep, well drained soils that formed in loamy and clayey residuum derived from Eocene age, stratified, sandstone and mudstone. These nearly level to strongly sloping soils are on side slopes and interfluves on upland ridges. Slopes range from 1 to 12 percent. Mean annual precipitation is about 965 mm (38 in) and the mean annual air temperature is 19 degrees C (66 degrees F).
TAXONOMIC CLASS: Fine, mixed, active, thermic Udic Paleustalfs
Depth of solum: 100 to 150 cm (40 to 60 in), Deep
Depth of abrupt texture change: 18 to 84 cm (7 to 33 in)
Depth of argillic horizon: 13 to 84 cm (5 to 33 in)
Depth to secondary carbonates: Greater than 75 cm (30 in)
Redoximorphic features: Masses and concentrations of oxidized iron and iron depletions from 0 to 188 cm (0 to 74 in)
Soil moisture: Dry in some or all parts of the soil moisture control section for more than 90 or more cumulative days and moist in some parts either for more than 180 cumulative days per year or for 90 or more consecutive days in normal years. Ustic soil moisture regime
USE AND VEGETATION: The major uses are rangeland or improved pasture with a few cultivated areas. The native plant community is a savannah with scattered post oak, blackjack oak, and elm trees with ground cover of medium and tall native grasses. Present vegetation is a fairly dense cover of oak trees, yaupon, American beautyberry and hawthorn with shade tolerant grasses such as longleaf uniola. Many areas have been cultivated in the past. These old cropland fields are being used for rangeland or have been established to bermudagrass, bahiagrass or other improved pasture grasses. A few small areas have been planted to loblolly pine. Old fields being used for rangeland are typically producing low quality perennial grasses, annuals grasses, forbs and some fields are being invaded by mesquite.
DISTRIBUTION AND EXTENT: Land Resource Region J - Southwestern Prairies Cotton and Forage Region. East Central Texas. Texas Claypan Area, Southern Part (MLRA 87A). This soil is of large extent.
Freestone County, Texas; 1986. The Edge series was originally established in Brazos County, Texas in 1955. In May, 1963 the series was placed on the inactive list and the soils were included with the similar Axtell series. The Axtell soils are members of a fine, smectitic, thermic family of Udertic Paleustalfs. Axtell soils are typically on terraces or in valley fill positions and have a solum thicker than 152 cm (60 in)and with vertic properties. The re-defined Edge series has a concept similar to the original series established in Brazos County.
REMARKS: This pedon is within an area of Edge fine sandy loam, eroded. It is on a small area that is not eroded. These soils are not saturated in any part of the solum for more than 30 consecutive days during most years.
For a detailed description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/E/EDGE.html
For acreage and geographic distribution, visit: