LOCATION BUFFSTAT VAEstablished Series
TAXONOMIC CLASS: Fine, mixed, semiactive, mesic Typic Hapludults
TYPICAL PEDON: Buffstat silt loam - on a 11 percent slope in a loblolly pine plantation. (Colors are for moist soil.)
Ap--0 to 4 inches; dark yellowish brown (10YR 4/4) silt loam; weak fine granular structure; friable, slightly sticky, slightly plastic; many fine, medium, and coarse roots; 10 percent gravel; few fine flakes of mica; strongly acid; clear smooth boundary. (0 to 7 inches thick.)
Bt1--4 to 8 inches; reddish yellow (7.5YR 6/6) silty clay loam; weak fine subangular blocky structure; friable, slightly sticky, slightly plastic; many fine, medium, and coarse roots; 10 percent gravel; common fine flakes of mica; many distinct clay films on faces of peds; strongly acid; clear wavy boundary.
Bt2--8 to 28 inches; strong brown (7.5YR 5/8) silty clay loam; moderate fine and medium subangular blocky structure; friable, slightly sticky, slightly plastic; common fine, medium, and coarse roots; 10 percent gravel; common fine flakes of mica; many distinct clay films on faces of peds; strongly acid; clear wavy boundary.
Bt3--28 to 42 inches; reddish yellow (7.5YR 6/8) channery clay; weak medium subangular blocky structure; firm, slightly sticky, slightly plastic; 30 percent channers; clay films on vertical faces of peds; many fine flakes of mica; strongly acid; abrupt smooth boundary. (Combined thickness of the Bt horizons is 20 to 45 inches).
Cr--42 to 58 inches; slightly weathered sericite schist.
R--58 inches; unweatherd sericite schist.
TYPE LOCATION: Nelson County, Virginia; about 0.8 miles northwest (294 degrees) of the intersection of Highways VA-626 and VA-56, and 1.4 miles south (160 degrees) of the intersection of Highways VA-56 and VA-646.
RANGE IN CHARACTERISTICS:
Depth to Soft Bedrock: 40 to 60 inches
Depth to Hard Bedrock: 40 to 60 inches
Depth to Seasonal High Water Table: Greater than 60 inches
Rock Fragment content: Schist or quartz gravel or channers, 0 to 35 percent, by volume, in the A, Ap, E, and Bt horizons; 0 to 50 percent in the BC and C horizons
Soil Reaction: Very strongly acid or strongly acid, except where limed
Other Features: Finely divided mica flakes are common to many throughout the soil
RANGE OF INDIVIDUAL HORIZONS:
A horizon (if it occurs):
Color--hue of 7.5YR or 10YR, value of 2 through 5, and chroma of 2 through 4
Texture (fine-earth fraction)--silt loam, loam or fine sandy loam
Ap horizon:
Color--hue of 7.5YR or 10YR, value of 4 or 5, and chroma of 2 through 6
Texture (fine-earth fraction)--silt loam, loam, or fine sandy loam
E horizon (if it occurs):
Color--hue of 7.5YR or 10YR, value of 4 through 6, and chroma of 4 through 6
Texture (fine-earth fraction)--silt loam, loam, or fine sandy loam
Mottles (if they occur)--red, yellow, or brown
Bt horizon:
Color--hue of 5YR through 10YR, value of 4 through 6, and chroma of 4 through 8
Texture (fine-earth fraction)--clay loam, silty clay loam, silty clay, or clay; more than 30 percent silt in particle-size control section
BC horizon (if it occurs):
Color--hue of 2.5YR through 10YR, value of 4 through 6, and chroma of 4 through 8
Texture (fine-earth fraction)--loam, silt loam, silty clay loam, or clay loam
C horizon (it it occurs):
Color--hue of 10R through 10YR, value of 3 or 4, and chroma of 4 through 6
Texture (fine-earth fraction)--loam, silt loam, silty clay loam, or clay loam saprolite
Cr horizon:
Type of bedrock--weathered, fractured schist
R horizon:
Type of bedrock--unweathered schist
COMPETING SERIES:
Braddock soils-very deep and formed in colluvium and alluvium from crystalline rocks
Buckhall soils-very deep and formed in residuum from granite gneiss and schist of the Northern
Piedmont Plateau.
Casville soils-very deep and formed in residuum from felsic or intermediate igneous and metamorphic rock of the mesic Southern Piedmont.
Clifton soils-very deep and formed in residuum in low mountains of the Blue Ridge
Clover soils-very deep and formed in residuum from Triassic rock materials
Danripple soils-very deep and formed in old alluvium on stream terraces of the Piedmont
Goresville soils-very deep and formed in old alluvium and the underlying red siltstone, shale, or fine-grained sandstone residuum, on high stream terraces
Mount Rush soils-moderately deep and formed in residuum from mixed felsic and mafic metamorphic and igneous rocks
Spears Mountain soils-moderately deep
Totier soils-formed in residuum from Triassic red shale
Unison soils-very deep and formed in colluvium and alluvium from crystalline rocks on footslopes, alluvial fans, or stream terraces
Yellowbottom-Very deep
GEOGRAPHIC SETTING:
Landscape: Piedmont
Landform: Hill, ridge
Hillslope Profile Position: Summitt, shoulder, back slope
Geomorphic Component: Interfluve, side slope
Parent Material: Residuum, sericite schist or graphitic schist
Elevation: 400 to 1400 feet
Mean Annual Air Temperature: 52 to 57 degrees
Mean Annual Precipitation: 36 to 45 inches
Frost Free Period: 150 to 200 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Appomattox soils-very deep, moderately slow permeability
Bentley soils-very deep, moderately slow to slow permeability
Bugley soils-shallow to same bedrock
Penhook soils-very deep
Littlejoe soils-deep to same bedrock, redder hues
Strawfield soils-moderately deep to same bedrock
DRAINAGE AND PERMEABILITY:
Drainage class (Agricultural): Well drained
Index Surface Runoff: Slow to high
Internal Free Water Occurrence: Very deep
Permeability: Moderate
USE AND VEGETATION:
Major Uses: Hay, pasture, and woodland
Dominant Vegetation: Where cultivated--Hay. Where wooded-Northern red oak, scarlet oak, chestnut oak.
DISTRIBUTION AND EXTENT:
Distribution: Virginia
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Nelson County, Virginia, 1988.
REMARKS: Buffstat soils were previously mapped as Nason, a thermic counterpart.
Diagnostic horizons and soil characteristics recognized in this pedon are:
Ochric epipedon--the zone from 0 to 4 inches (Ap horizon)
Argillic horizon--the zone from 4 to 42 inches (Bt horizons)
Paralithic contact-42 inches
Lithic contact-58 inches
Series control section--the zone from 0 to 52 inches
ADDITIONAL DATA: Ranges for morphology, chemistry, particle-size distribution, and mineralogy are based on 2 pedons and the thermic counterpart to this soil
Data Map Unit ID (type location): 00000
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
VA0329 BUFFSTAT 0-60 52-57 180-210 36-45 350-1000
VA0330 BUFFSTAT 0-60 52-57 180-210 36-45 350-1000
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness VA0329 NONE >6.0 - 40-60 HARD VA0330 NONE >6.0 - 40-60 HARDSOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- VA0329 0- 4 L SIL VFSL 0- 5 75-100 10-27 - VA0329 0- 4 FSL 0- 5 75-100 5-20 - VA0329 0- 4 SICL CL 0- 5 75-100 27-40 - VA0329 4-42 SICL C GR-SIC 0- 5 50-100 35-50 - VA0329 42-58 WB - - - - VA0329 58-68 UWB - - - -
VA0330 0- 4 CN-L CN-SIL CN-VFSL 0- 10 55- 75 6-12 - VA0330 0- 4 CN-FSL 0- 10 55- 75 6-12 - VA0330 0- 4 CN-SICL 0- 10 55- 75 28-35 - VA0330 4-42 SICL SIC C 0- 5 75-100 28-53 - VA0330 42-58 WB - - - - VA0330 58-68 UWB - - - -
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll VA0329 0- 4 4.5- 6.5 1.-2. 0- 0 0.6- 2.0 LOW VA0329 0- 4 4.5- 6.5 1.-2. 0- 0 0.6- 2.0 LOW VA0329 0- 4 4.5- 6.5 .5-1. 0- 0 0.6- 2.0 LOW VA0329 4-42 4.5- 5.5 0.-.5 0- 0 0.6- 2.0 MODERATE VA0329 42-58 - - - 0.00-0.06 VA0329 58-68 - - - 0.00-0.01
VA0330 0- 4 4.5- 6.5 1.-2. 0- 0 0.6- 2.0 LOW VA0330 0- 4 4.5- 6.5 1.-2. 0- 0 0.6- 2.0 LOW VA0330 0- 4 4.5- 6.5 .5-1. 0- 0 0.6- 2.0 LOW VA0330 4-42 4.5- 5.5 0.-0. 0- 0 0.6- 2.0 MODERATE VA0330 42-58 - - - 0.00-0.06 VA0330 58-68 - - - -