LOCATION AYERSVILLE NC+VAEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, semiactive, mesic Typic Dystrudepts
TYPICAL PEDON: Ayersville parachannery loam (in an area mapped as Ayersville gravelly loam, 4 to 15 percent slopes), on a 4 percent sloping ridge in Virginia pine. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 8 inches; dark reddish brown (5YR 3/2) parachannery loam; weak fine granular structure; very friable; common fine, medium, and coarse roots; 20 percent, by volume siltstone and mudstone pararock fragments up to 3 inches in size; very strongly acid; clear smooth boundary. (5 to 10 inches thick)
Bw--8 to 22 inches; dark reddish brown (2.5YR 3/4) parachannery loam; weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; few fine roots; few fine manganese concretions; 30 percent, by volume mudstone and siltstone pararock fragments up to 3 inches in size; strongly acid; gradual wavy boundary. (8 to 24 inches thick)
C--22 to 26 inches; reddish brown (2.5YR 4/4) very parachannery silt loam; massive; friable; few fine roots; 60 percent, by volume siltstone and mudstone pararock fragments up to 3 inches in size; strongly acid; clear irregular boundary. (0 to l2 inches thick)
Cr--26 to 30 inches; reddish brown (2.5YR 4/4) interbedded siltstone and mudstone; very weakly cemented; fractures at intervals of less than 4 inches; high excavation difficulty; few roots in cracks; abrupt smooth boundary. (0 to 10 inches thick)
R--30 inches; reddish brown (2.5YR 4/4) interbedded siltstone and mudstone; strongly cemented; fractures at intervals of 4 to less than 18 inches; very high excavation difficulty.
TYPE LOCATION: Rockingham County, North Carolina; about 2,100 feet north of Eden on Secondary Road l7l5; 1,450 feet east of Secondary Road 17l4 and Secondary Road 17l5 intersection; 30 feet south of Secondary Road 1715, in a forest of Virginia pine; USGS Unknown, NC topographic quadrangle; lat. 00 degrees 00 minutes 00 seconds N. and long. 00 degrees 00 minutes 00 seconds W.
RANGE IN CHARACTERISTICS:
Depth to top of Cambic horizon: 5 to 10 inches
Depth to base of Cambic horizon: 8 to 35 inches
Depth to Bedrock: 20 to 40 inches to soft and hard bedrock
Soil Reaction: Very strongly acid or strongly acid, unless limed
Fragment Content: 2 to 35 percent, by volume in the A horizon, l0 to 35 in the B horizon, and 35 to 85 percent in the C horizon; mostly parachanners. Fragments are non-durable and most disintegrate in the laboratory in particle-size analysis.
RANGE OF INDIVIDUAL HORIZONS:
Ap horizon or A horizon (if it occurs):
Color--hue of 10R to 5YR, value of 3 or less, chroma of 2 to 6
Texture (fine-earth fraction)--loam, silt loam, or silty clay loam
Bw horizon:
Color--hue of 10R to 5YR, value of 3 or less, chroma of 2 to 6
Texture (fine-earth fraction)--loam, silt loam, clay loam, or silty clay loam
Mottles (if they occur)--shades of red, yellow, or brown
C horizon:
Color--hue of 10R to 5YR, value of 5 or less, chroma of 2 to 6
Texture (fine-earth fraction)--loam or silt loam
Mottles (if they occur)--shades of red, yellow, or brown
Cr horizon (if it occurs):
Bedrock kind--siltstone, mudstone, and shale
Bedrock hardness--extremely weakly cemented to moderately cemented
Fracture interval--less than 18 inches
Excavation difficulty--low to high
R horizon:
Bedrock kind--siltstone, mudstone, and shale
Bedrock hardness--strongly cemented to indurated
Fracture interval--greater than 4 inches
Excavation difficulty--very high or extremely high
COMPETING SERIES:
Brecksville soils--have moderately slow permeability and formed in residuum of thin-bedded shale with minor amounts of siltstone
Brookshire soils--are very deep and formed in colluvium on the lower part of mountain slopes at elevations of 2,000 to 4,800 feet
Citico soil--are deep soils formed in colluvium from metasedimentary rocks; on lower parts of mountain slopes
Irma soils--are very deep and formed in colluvium and residuum from schist or phyllite
Kimper soils-are deep or very deep and formed in colluvium from sandstone, siltstone, and shale
Muskingum soils--are moderately deep and formed in residuum weathered from Pennsylvanian age interbedded siltstone, sandstone and shale
GEOGRAPHIC SETTING:
Landscape: Piedmont basin
Landform: Low hill
Geomorphic Component: Interfluve, side slope, head slope, nose slope
Hillslope Profile Position: Summit, shoulder, backslope
Parent Material: Residuum weathered from Triassic age siltstone, mudstone, and shale
Slope: 2 to 60 percent, typically 2 to 15 percent
Elevation: 300 to 600 feet
Frost Free Period: 160 to 205 days
Mean Annual Air Temperature: 52 to 57 degrees F.
Mean Annual Precipitation: 40 to 55 inches
GEOGRAPHICALLY ASSOCIATED SOILS:
Clover soils--are very deep to bedrock, have moderately shrink-swell potential, and are well drained; on similar landforms
Easthamlet soils--are moderately deep to soft bedrock (deep to hard bedrock), are somewhat poorly drained, and have very high shrink-swell potential; on lower-lying landforms
Lackstown soils--are very deep and moderately well to somewhat poorly drained; on lower-lying landforms
Pinkston soils--have a coarse-loamy particle-size class and are moderately deep to bedrock; on similar landforms
Rockbarn soils--are moderately deep (20 to 40 inches) to soft bedrock and deep or very deep (40 inches or more) to hard bedrock; on similar landforms
Stoneville soils--are deep (40 to 60 inches) to soft bedrock; on similar landforms
Straightstone soils--are very deep to bedrock and are well drained; on similar landforms
Wolftrap soils--have very high shrink-swell potential and are moderately well drained; on lower-lying landforms
DRAINAGE AND PERMEABILITY:
Depth Class: Moderately deep (20 to 40 inches) to bedrock
Drainage Class (Agricultural): Well drained to excessively drained
Internal Free Water Occurrence: Very deep
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: Low to high
Permeability: Moderate
USE AND VEGETATION:
Major Uses: Woodland and cropland
Dominant Vegetation: Where cultivated--small grain. Where wooded-upland oaks and Virginia pine. Understory species include flowering dogwood, sourwood, red maple, eastern redbud, eastern red cedar, sassafras, greenbrier, and huckleberry.
DISTRIBUTION AND EXTENT:
Distribution: Dan River Triassic Basin of North Carolina and Virginia
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Rockingham County, North Carolina, l983.
REMARKS: These soils have varying amounts of non-durable fragments throughout the solum that disintegrate in the laboratory in particle-size analysis. The relative percent of sand, silt, and clay-size particles fluctuates with the degree of agitation in the laboratory. Similar soils with somewhat higher content of non-durable fragments are on the same landscapes. These soils are not extensive enough to identify another series.
03/13/2003. Ayersville soils are of minor extent (2,500 acres) and have only been correlated in Rockingham County, NC. The official series type location description requires revision to meet present series standards. An extensive review of this series is recommended with the update or maintenance of the soil survey area.
06/14/2007. The terms used for texture modifiers were changed from rock fragments to pararock fragments to more accurately reflect fragment hardness. This revision is not a change in the series concept and was not confirmed by re-examination of the pedon.
Diagnostic horizons and soil characteristics recognized in this pedon:
Ochric epipedon--the zone from 0 to 8 inches (Ap horizon)
Cambic horizon--the zone from 8 to 22 inches (Bw horizon)
Other soil features identified with this pedon:
Series control section--the zone from 0 to 30 inches
ADDITIONAL DATA:
Laboratory Data: No laboratory data available.
Database Information:
Typical Pedon Data Mapunit ID--82200
TABULAR SERIES DATA: (Based on original SOI-5.)
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip ElevationNC0135 AYERSVILLE 2-60 52- 57 175-210 40-55 300-600
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness NC0135 NONE >6.0 - - 20-40 HARD
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- NC0135 0-8 L SIL SICL 0-10 80-100 12-27 3-7 NC0135 0-8 GR-L GR-SIL GR-SICL 10-20 70-100 12-27 3-7 NC0135 8-22 GR-SIL GR-L L 0-20 70-100 18-35 3-8 NC0135 22-26 GR-SIL GR-L GRV-SIL 10-45 70-100 8-20 2-5 NC0135 26-30 WB - - - - NC0135 30-40 UWB - - - -
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll NC0135 0-8 4.5-6.0 0.5-2.0 0-0 0.6-6.0 LOW NC0135 0-8 4.5-6.0 0.5-2.0 0-0 0.6-6.0 LOW NC0135 8-22 4.5-5.5 0.0-0.5 0-0 0.6-2.0 LOW NC0135 22-26 4.5-5.5 0.0-0.5 0-0 0.6-2.0 LOW NC0135 26-30 - - - - - NC0135 30-40 - - - - -