LOCATION BEWLEYVILLE TN+AL KYEstablished Series
TAXONOMIC CLASS: Fine-silty, siliceous, semiactive, thermic Typic Paleudults
TYPICAL PEDON: Bewleyville silt loam--cultivated. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 8 inches; brown (10YR 4/3) silt loam; moderate medium granular structure; friable; many fine and medium roots; moderately acid; clear smooth boundary. (5 to 10 inches thick)
Bt1--8 to 14 inches; strong brown (7.5YR 5/6) silt loam; moderate medium subangular blocky structure; friable; common fine and medium roots; few faint clay films on faces of peds; strongly acid; clear smooth boundary.
Bt2--14 to 22 inches; yellowish red (5YR 4/6) silty clay loam; moderate medium subangular blocky structure; friable; few fine roots; common distinct clay films on faces of peds; strongly acid; gradual smooth boundary.
Bt3--22 to 28 inches; yellowish red (5YR 4/6) silty clay loam; few fine distinct strong brown (7.5YR 5/6) mottles; moderate medium subangular blocky structure; friable; few fine roots; many distinct clay films on faces of peds; strongly acid; gradual smooth boundary. (Combined thickness of the Bt horizon ranges from 15 to 45 inches)
2Bt4--28 to 36 inches; red (2.5YR 4/6) silty clay loam; few medium distinct brown (7.5Y 5/4) mottles; moderate medium subangular blocky structure; firm; many distinct clay films on faces of peds; strongly acid; gradual smooth boundary.
2Bt5--36 to 48 inches; dark red (2.5YR 3/6) clay; few medium prominent yellowish brown (10YR 5/4) and strong brown (7.5YR 5/6) mottles; moderate medium subangular blocky structure; firm; many distinct clay films on faces of peds; strongly acid; gradual smooth boundary. (Combined thickness of the 2Bt horizon ranges from 15 to 45 inches)
2Bt6--48 to 72 inches; dark red (2.5YR 3/6) clay; common medium prominent strong brown (7.5YR 5/6) and yellowish brown (10YR 5/4) mottles; moderate medium subangular blocky structure; firm; many distinct clay films on faces of peds; strongly acid.
TYPE LOCATION: White County, Tennessee; 3.0 miles north of Sparta on State Highway 42; 1/2 mile west of O'Connor Crossroads; 50 feet south of graveled road.
RANGE IN CHARACTERISTICS: Solum thickness and depth to limestone bedrock are more than 6 feet. Fragments of chert, sandstone, geodes and quartzite pebbles range from 0 to 5 percent in the A and Bt horizons and from 0 to 25 percent in the 2Bt horizon. The soil is moderately acid to very strongly acid in the A and Bt horizons and strongly acid or very strongly acid in the 2Bt horizon. The surface layer is less acid where limed.
The Ap horizon has hue of 10YR or 7.5YR, value of 4 or 5 and chroma of 3 or 4. Severly eroded areas also have hue of 5YR and chroma of 6.
Some pedons have a thin BA horizon that have hue of 10YR or 7.5YR, value of 4 or 5 and chroma of 4 or 6. It is silt loam.
The upper Bt horizon has hue of 7.5YR or 5YR, value of 4 or 5, and chroma of 4 to 8. It is silt loam or silty clay loam.
The lower Bt horizon has hue of 7.5YR to 2.5YR, value of 4 or 5 and chroma of 4 to 8. Mottles are in shades of red, yellow or brown in some pedons. It is silty clay loam or rarely silt loam.
The 2Bt horizon has hue of 2.5YR or 5YR, value of 3 to 6 and chroma of 4 to 8. Mottles are in shades of red, yellow or browm and in the lower part of some pedons gray. It is clay, silty clay, clay loam, or silty clay loam.
The control section averages between 25 and 35 percent clay and from 5 to 15 percent fine sand or coarser. A lithologic discontinuity is not evident in all pedons and is not a requirement of the series.
COMPETING SERIES: These are the Aycock, Blevins, Curtistown, and Mountview series. Aycock, Blevins, and Mountview soils have Bt horizons with hue of 10YR and 7.5YR. Curtistown soils have surface layers darker than value of 4.
GEOGRAPHIC SETTING: Bewleyville soils are on undulating to hilly uplands. Slopes range from 2 to 15 percent. They formed in a silty mantle 2 to 3.5 feet in thickness and the underlying material. The underlying material is either old alluvium or residuum from limestone. Near the type location, mean annual temperature is 59 degrees F. and mean annual precipitation is 51 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Mountview, Dickson, Guthrie, Taft, and Waynesboro series. Dickson soils, on slightly higher landscapes on more level ridgetops, and the Guthrie and Taft soils on lower lying areas have fragipans. Waynesboro soils, on slightly lower lying landscapes have a clayey control section.
DRAINAGE AND PERMEABILITY: Bewleyville soils are well drained. Runoff is medium and permeability is moderate.
USE AND VEGETATION: Practically all is used for general farm crops including corn, alfalfa, small grains, tobacco, hay, and pasture. Some areas are used for growing nursery stock. The native vegetation was mixed hardwoods such as oaks, hickories, beech, and poplar.
DISTRIBUTION AND EXTENT: The Highland Rim and Pennyroyal in Tennessee and Kentucky, and possibly northern Alabama.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Stewart County, Tennessee; 1948.
REMARKS: In recent years,The Bewleyville soils have been classified in the Pickwick series in Tennessee. This series was placed on the inactive list about 1960. The type location had been moved to Kentucky some time before that. The series was reactivated in 1974 with the type location in White County, Tennessee.
ADDITIONAL DATA: Grain counts by the Beltsville Soil Survey Laboratory show only traces of weatherable minerals in the Bt horizon.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - 0 to 8 inches (Ap horizon)
Argillic horizon - 8 to 72 inches (Bt and 2Bt horizons)
Lithologic discontinuity - at a depth of 28 inches.