LOCATION STOTT KNOB NCEstablished Series
TAXONOMIC CLASS: Fine-loamy, parasesquic, mesic Typic Hapludults
TYPICAL PEDON: Stott Knob fine sandy loam (in an area of Fairview-Stott Knob complex, 25 to 45 percent slopes) on a 41 percent slope, in an area of woodland. (Colors are for moist soil unless otherwise indicated.)
A--0 to 3 inches; dark grayish brown (10YR 4/2) fine sandy loam, brown (10YR 4/3), dry; weak fine granular structure; friable; many fine and medium and few coarse roots; few fine tubular pores; few fine flakes of mica; 10 percent, by volume fine gravel; very strongly acid; clear wavy boundary. (1 to 12 inches thick)
E--3 to 7 inches; brown (7.5YR 5/4) fine sandy loam; weak fine granular structure; friable; many fine and medium and common coarse roots; few fine tubular pores; few fine flakes of mica; 5 percent, by volume fine gravel; strongly acid; gradual wavy boundary. (0 to 10 inches thick)
Bt--7 to 19 inches; yellowish red (5YR 5/8) sandy clay loam; weak medium subangular blocky structure; friable; slightly sticky, slightly plastic; common fine, medium, and coarse roots; common fine tubular pores; few patchy clay films on faces of peds; few fine flakes of mica; 5 percent, by volume fine gravel; strongly acid; gradual wavy boundary. (10 to 20 inches thick)
BC--19 to 24 inches; reddish yellow (5YR 6/8) fine sandy loam; weak medium subangular blocky structure; very friable; slightly sticky, slightly plastic; few fine, medium, and coarse roots; few fine tubular pores; common fine flakes of mica; 10 percent, by volume fine gravel; very strongly acid; gradual wavy boundary. (0 to 10 inches thick)
C--24 to 30 inches; strong brown (7.5YR 5/6) fine sandy loam saprolite; massive; friable; few fine and medium roots; common fine flakes of mica; 10 percent, by volume fine gravel; very strongly acid. (0 to 15 inches thick)
Cr--30 to 47 inches; slightly weathered gneiss bedrock, weakly cemented; high excavation difficulty; abrupt smooth boundary. (5 or more inches thick.)
R--47 inches; gneiss bedrock, strongly cemented; very high excavation difficulty.
TYPE LOCATION: Surry County, North Carolina; about 4.0 miles southeast of Dobson, 900 feet north of the intersection of Secondary Roads 2210 and 2200 on Secondary Road 2210 to New Hope Church, 1200 feet northwest of church, in woodland; USGS Copeland, NC topographic quadrangle; lat. 36 degrees 21 minutes 51 seconds N. and long. 80 degrees 39 minutes 42 seconds W.
RANGE IN CHARACTERISTICS:
Depth to top of Argillic horizon: 1 to 15 inches
Depth to base of Argillic horizon: 15 to 40 inches
Depth to bedrock: 20 to 40 inches to soft bedrock and 40 to 60 inches or more inches to hard bedrock
Rock Fragment Content: 0 to 35 percent, by volume throughout; mostly gravel, cobbles, or stones
Soil Reaction: Extremely acid to moderately acid, unless limed
Mica Content: 0 to 20 percent, by volume mica flakes throughout
RANGE OF INDIVIDUAL HORIZONS:
A or Ap horizon (if they occur):
Color--hue of 5YR to 10YR, value of 3 to 5, chroma of 2 to 8
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam. Eroded phases include clay loam or sandy clay loam.
E horizon (if it occurs):
Color--hue of 5YR to 10YR, value of 4 or 5, chroma of 4 to 8
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam
BA or BE horizon (if they occur):
Color--hue of 5YR to 10YR, value of 4 to 6, chroma of 4 to 8
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam
Bt horizon:
Color--hue of 2.5YR to 10YR, value of 4 to 6, chroma of 4 to 8
Texture (fine-earth fraction)--sandy clay loam, clay loam, or loam
Non-redoximorphic mottles (if they occur)--shades of red, brown, or yellow
BC horizon (if it occurs):
Color--hue of 2.5YR to 10YR, value of 4 to 6, chroma of 4 to 8
Texture (fine-earth fraction)--sandy loam, fine sandy loam, loam, sandy clay loam, or clay loam
Non-redoximorphic mottles (if they occur)--shades of red, brown, or yellow
C horizon (if it occurs):
Color--hue of 2.5YR to 10YR, value of 4 to 6, chroma of 4 to 8, or is variegated in shades of these colors
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam saprolite
Cr horizon:
Bedrock kind--mica schist, mica gneiss, phyllite, or granodiorite
Bedrock hardness--extremely weakly cemented to moderately cemented
Fracture interval--greater than 4 inches
Excavation difficulty--low to high
R horizon (if it occurs):
Bedrock kind--mica schist, mica gneiss, phyllite, or granodiorite
Bedrock hardness--strongly cemented to indurated
Fracture interval--greater than 4 inches
Excavation difficulty--very high or extremely high
COMPETING SERIES:
Brevard soils--very deep and formed in colluvium and alluvium in the Southern Appalachian Mountains at elevations above 2000 feet
Cowee soils--are in the Southern Appalachian Mountains at elevations above 2000 feet
Evard soils--are very deep and are in the Southern Appalachian Mountains at elevations above 2000 feet
GEOGRAPHIC SETTING:
Landscape: Piedmont upland
Landform: Hill, ridge
Geomorphic Component: Crest, side slope, nose slope, head slope
Hillslope Profile Position: Summit, shoulder backslope
Parent Material: Residuum from felsic to intermediate metamorphic or igneous rock such as mica schist, mica gneiss, phyllite, and granodiorite
Slope: 2 to 90 percent
Elevation: 300 to 1600 feet
Frost Free Period: 160 to 205 days
Mean Annual Air Temperature: 52 to 57 degrees F.
Mean Annual Precipitation (type location): 40 to 55 inches
GEOGRAPHICALLY ASSOCIATED SOILS:
Bannertown soils--are moderately deep to hard bedrock; on similar landforms
Nathalie soils--are very deep and have a fine particle-size control section; on similar landforms
Clifford soils--are very deep and have a fine particle-size control section; on similar landforms
Fairview soils--are very deep and have a fine particle-size control section; on similar landforms
Rhodhiss soils--are very deep and have a fine particle-size control section; on similar landforms
Toast soils--are very deep and have a fine particle-size control section; on similar landforms
Westfield soils--are deep to hard bedrock and have a fine particle-size control section; on similar landforms
Woolwine soils--are moderately deep to bedrock and have a fine particle-size control section; on similar landforms
DRAINAGE AND PERMEABILITY:
Depth Class: Moderately deep (20 to 40 inches) to soft bedrock and deep or very deep (40 inches or more) to hard bedrock
Drainage Class (Agricultural): Well 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
Shrink-Swell Potential: Low
USE AND VEGETATION:
Major Uses: Woodland, and less commonly cultivated crops and pasture
Dominant Vegetation: Where cultivated--corn, tobacco, small grain, hay, and apples. Where wooded--Eastern white pine, Virginia pine, red oak, white oak, post oak, hickory, blackgum, red maple, and dogwood.
DISTRIBUTION AND EXTENT:
Distribution: North Carolina and Virginia
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina.
SERIES ESTABLISHED: Surry County, North Carolina, 2003.
REMARKS: The Stott Knob series is a mesic Piedmont counterpart of the Cowee series. Placement in the fine-loamy, parasesquic, mesic Typic Hapludult family is based on the similar placement of the Cowee series.
Diagnostic horizon and features recognized in this pedon:
Ochric epipedon--the zone from 0 to 7 inches (A and E horizons)
Argillic horizon--the zone from 7 to 19 inches (Bt horizon)
Paralithic contact--bedrock contact at a depth of 30 inches (upper boundary of the Cr horizon)
Paralithic materials--the zone from 30 to 47 inches (Cr horizon)
Other soil features identified with this pedon:
Presence of hard bedrock--bedrock contact at 47 inches (R horizon)
Series control section--0 to 40 inches
ADDITIONAL DATA:
Laboratory Data: Parasesquic mineralogy class was determined by total iron oxide, by weight (DCB Fe multiplied by 1.43) plus percent, by weight, gibbsite of more than 10 in the fine-earth fraction.
Database Information:
Typical Pedon Data Mapunit ID--82667
TABULAR SERIES DATA:
Soil Name Slope Airtemp FrFr/Seas Precip Elevation STOTT KNOB 2-90 52-57 160-205 40-55 400-1400FloodL FloodH Watertable Kind Months Bedrock Hardness NONE > 6.0 - 20-40 SOFT
Depth Texture 3-Inch No-10 Clay% -CEC- 0-7 GR-L GR-FSL GR-SL 0- 5 65-85 8-20 1-8 0-7 L FSL SL 0- 5 85-100 8-20 1-8 0-7 CL SCL 0- 5 85-100 20-35 1-5 0-7 ST-L ST-FSL ST-SL 10-20 65-85 8-20 1-8 7-30 GR-SCL GR-SL CL 0-15 45-90 18-35 2-8 30-47 WB - - - - 47 UWB - - - -
Depth -pH- O.M. Salin Permeab Shnk-Swll 0-7 3.5-6.0 1.0-5.0 0-0 2.0-6.0 LOW 0-7 3.5-6.0 1.0-5.0 0-0 2.0-6.0 LOW 0-7 3.5-6.0 1.0-3.0 0-0 0.6-2.0 LOW 7-30 3.5-6.0 0.5-1.0 0-0 0.6-2.0 LOW 30-47 - - - - - 47 - - - - -