LOCATION BONNEAU SC+AL FL GA NC VAEstablished Series
TAXONOMIC CLASS: Loamy, siliceous, subactive, thermic Arenic Paleudults
TYPICAL PEDON: Bonneau loamy sand--forested. (Colors are for moist soil.)
A--0 to 3 inches; very dark grayish brown (2.5Y 3/2) loamy sand; weak fine granular structure; very friable; many fine and medium roots; very strongly acid; abrupt wavy boundary. (2 to 10 inches thick)
E1--3 to 7 inches; light yellowish brown (2.5Y 6/4) loamy sand; weak fine granular structure; very friable; common fine faint very dark grayish brown (10YR 3/2) coatings of organic matter; many fine and medium roots; very strongly acid; clear wavy boundary.
E2--7 to 22 inches; light yellowish brown (2.5Y 6/4) loamy sand; weak fine granular structure; very friable; common fine and medium roots; strongly acid; abrupt wavy boundary. (Combined thickness of the E horizon is 11 to 38 inches.)
Bt1--22 to 27 inches; brownish yellow (10YR 6/6) sandy loam; weak coarse subangular blocky structure; very friable; few clay bridging of sand grains; few fine roots; strongly acid; clear wavy boundary.
Bt2--27 to 40 inches; brownish yellow (10YR 6/6) sandy clay loam; common medium faint yellowish brown (10YR 5/6) masses of oxidized iron; weak coarse subangular blocky structure; friable; few fine roots; many clay bridging of sand grains; very strongly acid; clear wavy boundary.
Bt3--40 to 50 inches; yellowish brown (10YR 5/8) sandy clay loam; weak coarse subangular blocky structure; friable; few fine roots; few medium tubular pores; many clay bridging of sand grains few faint clay films on faces of some peds; many medium distinct gray (10YR 6/1) iron depletions and common medium faint dark yellowish brown (10YR 4/4) masses of oxidized iron; few fine uncoated sand grains (in old root pores); very strongly acid; clear wavy boundary.
Bt4--50 to 80 inches; gray (10YR 6/1) and yellowish brown (10YR 5/8) sandy clay loam; weak coarse subangular blocky structure; friable; common clay bridging of sand grains; areas of gray are iron depletions and areas of brown are masses of oxidized iron; very strongly acid. (Combined thickness of the Bt horizon is 20 to more than 40 inches.)
TYPE LOCATION: Berkeley County, South Carolina; 3.5 miles north of Bonneau on Secondary State Highway 447 and 100 feet south of highway.
RANGE IN CHARACTERISTICS:
Thickness of the sandy surface and subsurface layers: 20 to 40 inches
Depth to the top of the Argillic: 20 to 40 inches
Depth to the base of the Argillic horizon: 60 to 80 inches or more
Depth to Bedrock: Greater than 80 inches
Depth to Seasonal High Water Table: 40 to 60 inches, December to March
Rock Fragment Content: 0 to 15 percent, by volume, throughout
Soil Reaction: Extremely acid to slightly acid in the A and E horizons, except where limed and extremely acid to moderately acid in the B horizon
Other features: Content of silt in the particle-size control section is less than 30 percent. Some pedons have less than 5 percent plinthite nodules in the lower part of the B horizon.
RANGE OF INDIVIDUAL HORIZONS:
A horizon or Ap horizon (where present):
Color--hue of 7.5YR to 2.5Y, value of 3 to 5, chroma of 1 to 4, or is neutral with value of 3 to 5
Texture--sand, fine sand, loamy sand, or loamy fine sand
E horizon:
Color--hue of 10YR or 2.5Y, value of 4 to 8, chroma of 2 to 6
Texture--sand, fine sand, loamy sand, or loamy fine sand
Bt horizon (upper part):
Color--hue of 7.5YR to 2.5Y, value of 5 to 7, chroma of 3 to 8
Texture--sandy loam, fine sandy loam, or sandy clay loam
Bt horizon (lower part):
Color--hue of 7.5YR to 2.5Y, value of 5 to 7, chroma of 3 to 8 or is variegated in shades of brown, red, yellow, or gray
Texture--sandy loam, fine sandy loam, sandy clay loam, or sandy clay
Redoximorphic features--masses of oxidized iron in shades of red, brown, or yellow and iron depletions in shades of brown, olive, or gray. Depletions with chroma of 2 or less are within a depth of 60 inches.
BC horizon (where present):
Color--hue of 7.5YR to 2.5Y, value of 5 to 7, chroma of 3 to 8 or is variegated in shades of red, brown, yellow, olive, or gray
Texture--sandy loam, fine sandy loam, sandy clay loam, or sandy clay
Redoximorphic features--masses of oxidized iron in shades of red, brown, or yellow and iron depletions in shades of brown, olive, or gray. Iron depletions with chroma of 2 or less are within a depth of 60 inches.
Btg horizon (where present):
Color--hue of 7.5YR to 2.5Y, value of 5 to 7, chroma of 1 or 2
Texture--sandy loam, fine sandy loam, sandy clay loam, or sandy clay
Other features--Some pedons have a few plinthite nodules
Redoximorphic features--masses of oxidized iron in shades of red, brown, or yellow and iron depletions in shades of brown, olive, or gray.
BCg horizon (where present):
Color--hue of 7.5YR to 2.5Y, value of 5 to 7, chroma of 1 or 2
Texture--sandy loam, fine sandy loam, sandy clay loam, or sandy clay
Redoximorphic features--masses of oxidized iron in shades of red, brown, or yellow and iron depletions in shades of brown, olive, or gray.
COMPETING SERIES:
Autryville soils--have a Bt horizon separated by and intervening E horizon (bisequal), on similar landforms
Lovett soils--are slowly permeable and have a perched water table, on similar landforms
Lowndes soils--have a Bt horizon separated by and intervening E horizon (bisequal) and contain hard white nodules, on similar landforms
GEOGRAPHIC SETTING:
Landscape: Lower to upper coastal plain
Landform: Marine terraces, uplands
Hillslope Profile Position: Summits, shoulders, backslopes
Geomorphic Component: Interfluves, side slopes
Parent Material: Marine deposits, fluviomarine deposits
Elevation: 40 to 450 feet
Mean Annual Air Temperature: 57 to 70 degrees F.
Mean Annual Precipitation: 42 to 50 inches
Frost Free Period: 225 to 275 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Blanton soils--have a sandy epipedon more than 40 inches thick
Goldsboro soils--do not have arenic surface, have iron depletions of chroma 2 or less within 30 inches of the surface, in lower lying positions
Lynchburg soils--do not have arenic surface, have dominant chroma of 2 or less between the base of the A or Ap horizon and 30 inches, in lower lying positions
Noboco soils--do not have a sandy epipedon as thick as 20 inches
Norfolk soils--do not have a sandy epipedon as thick as 20 inches
Ocilla soils--have iron depletions of chroma 2 or less within 30 inches of the surface
Pelham soils--have dominant chroma of 2 or less between the base of the A or Ap horizon and 30 inches
Rains soils--do not have arenic surface, have dominant chroma of 2 or less between the base of the A or Ap horizon and 30 inches, in lower lying positions
Wagram soils--have a seasonal high water at a depth of more than 60 inches and have lower activity clay
DRAINAGE AND PERMEABILITY:
Depth Class: Very deep
Drainage Class (Agricultural): Well drained
Internal Free Water Occurrence: Deep, common
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: Negligible to medium
Permeability: Moderate
Shrink-swell potential: Low
USE AND VEGETATION:
Major Uses: Crops
Dominant Vegetation: Where cultivated--growing corn, soybeans, small grain, pasture grasses, and tobacco. Where wooded--mixed hardwood and pine, including longleaf and loblolly pine, white, red, turkey, and post oak, dogwood, and hickory.
DISTRIBUTION AND EXTENT:
Distribution: Coastal Plain of Alabama, Florida, Georgia, North Carolina, South Carolina, and Virginia
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Berkeley County, South Carolina; l974.
REMARKS: Diagnostic horizons and features recognized in the pedon are:
Ochric epipedon--the zone from the surface of the soil to 22 inches (A, E1, and E2 horizons)
Argillic horizon--the zone from 22 to 74 inches (Bt1, Bt2, Bt3, and Bt4 horizons)
Arenic feature--sandy texture from the surface of the soil to a depth of 22 inches (A, E1, and E2 horizons)
ADDITIONAL DATA:
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation SC0026 BONNEAU 0-12 57-70 195-250 42-50 40-450SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness SC0026 NONE 3.3-5.0 APPARENT DEC-MAR >80 -
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- SC0026 0-22 LS LFS 0-0 100-100 5-15 1-4 SC0026 0-22 S FS 0-0 100-100 2-8 1-4 SC0026 22-50 SL SCL FSL 0-0 100-100 13-35 2-6 SC0026 50-74 SL SCL SC 0-0 100-100 15-40 2-8
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll SC0026 0-22 4.5-6.0 0.5-2.0 0-0 6.0-20 LOW SC0026 0-22 4.5-6.0 0.5-2.0 0-0 6.0-20 LOW SC0026 22-50 4.5-5.5 0.0-0.5 0-0 0.6-2.0 LOW SC0026 50-74 4.5-5.5 0.0-0.5 0-0 0.6-2.0 LOW