LOCATION SEDGEFIELD NC+GA VA
Established Series
Rev. SWB:ENH:AG
11/2017
SEDGEFIELD SERIES
MLRA(s): 136
Soil Survey Regional Office (SSRO) Responsible: Raleigh, North Carolina
Depth Class: Very deep
Agricultural Drainage Class: Somewhat poorly drained
Permeability: Slow
Surface Runoff: Moderate to rapid
Parent Material: Residuum weathered from intermediate and mafic crystalline rock
Shrink-Swell Potential: High
Slope: 0 to 10 percent
TAXONOMIC CLASS: Fine, mixed, active, thermic Aquultic Hapludalfs
TYPICAL PEDON: Sedgefield sandy loam--cultivated. (Colors are for moist soil unless otherwise stated.)
A--0 to 3 inches; gray (10YR 6/1) sandy loam; weak medium granular structure; very friable; many fine and medium roots; few large roots; strongly acid; abrupt smooth boundary. (2 to 5 inches thick)
E--3 to 7 inches; very pale brown (10YR 7/3) sandy loam; few fine faint yellowish brown mottles; weak fine and medium granular structure; very friable; many fine and medium roots; strongly acid; abrupt smooth boundary. (0 to 8 inches thick)
BE--7 to 13 inches; yellowish brown (10YR 5/6) sandy loam; weak fine subangular blocky structure; friable; common fine and medium roots; very pale brown (10YR 7/3) E material in pores, root channels and tongues make up 10 percent of the horizon; few quartz pebbles less than 1 inch in diameter; strongly acid; gradual wavy boundary. (0 to 6 inches thick)
Bt1--13 to 23 inches; brownish yellow (10YR 6/6) clay; moderate medium subangular and angular blocky structure; firm; sticky, plastic; few medium roots; few fine pores; thick prominent clay films on faces of peds; common medium distinct gray (10YR 6/1) iron depletions; strongly acid; gradual wavy boundary.
Bt2--23 to 33 inches; strong brown (7.5YR 5/6) clay; moderate medium angular blocky structure; very firm; sticky, plastic; few fine roots; thick prominent clay films on faces of peds; common medium distinct gray (10YR 6/1) iron depletions; strongly acid; gradual wavy boundary. (combined thickness of the Bt horizons is 14 to 24 inches)
BCg--33 to 37 inches; gray (10YR 6/1) sandy clay loam; weak medium subangular blocky structure; firm; 10 percent brownish yellow (10YR 6/6) saprolite; common coarse distinct strong brown (7.5YR 5/6) soft masses of iron accumulation; moderately acid; gradual wavy boundary. (3 to 5 inches thick)
C--37 to 65 inches; mottled light gray (10YR 7/1), yellow (10YR 7/6), and brownish yellow (10YR 6/6) sandy loam saprolite; massive; friable; moderately acid; clear smooth boundary.
TYPE LOCATION: Orange County, North Carolina; 1.5 miles north of Walnut Grove Church on SR 1001, 1 mile west of SR 1001 on SR 1510, 100 feet south of SR 1510 in woods.
RANGE IN CHARACTERISTICS:
Depth to top of argillic horizon: 2 to 19 inches
Solum thickness: 20 to 40 inches
Depth to bedrock: Greater than 60 inches
Depth to seasonal high water table: 12 to 18 inches, January to March
Soil reaction: Very strongly acid to slightly acid, except where limed, in the A and upper Bt horizons and from moderately acid to moderately alkaline in the lower Bt and C horizons
Rock fragment content: 0 to 15 percent, by volume, throughout the profile; mostly gravel
Other features: Some pedons may have few to common dark concretions in the upper part of the profile
Range of Individual Horizons:
A or Ap horizon:
Color--hue of 7.5YR to 2.5Y, value of 4 to 6, and chroma of 1 to 4
Texture--loamy sand, sandy loam, fine sandy loam, sandy clay loam, or loam
E horizon:
Color--hue of 7.5YR to 2.5Y, value of 4 to 7, and chroma of 2 to 4
Texture--loamy sand, sandy loam, fine sandy loam, or loam
BA or BE horizon:
Color--hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 3 to 8
Texture--sandy loam or sandy clay loam
Bt horizon:
Color--hue of 7.5YR to 5Y, value of 5 to 6, and chroma of 3 to 8
Texture--clay loam, sandy clay, or clay
Redoximorphic features--iron depletions with chroma of 2 or less occur within 10 inches of the upper boundary of the Bt horizon. Iron accumulations in shades of yellow, brown, or red may also be present.
Btg horizon, where present:
Color--hue of 7.5YR to 5Y, value of 4 to 7, and chroma of 1 or 2
Texture--clay loam, sandy clay, or clay
Redoximorphic features--iron accumulations in shades of yellow, brown, or red are commonly present
BCg horizon:
Color--hue of 7.5YR to 5Y, value of 5 to 7, and chroma of 1 or 2
Texture-sandy loam, sandy clay loam, clay loam, or loam
Redoximorphic features--iron accumulations in shades of yellow, brown, or red are commonly present
BC horizon, where present:
Color--hue of 7.5YR to 5Y, value of 5 to 7, and chroma of 3 to 8. Some pedons may multicolored in shades of yellow, brown, gray, or red.
Texture--clay loam, sandy clay, or clay
Redoximorphic features--iron depletions in shades of brown, olive, or gray and iron accumulations in shades of yellow, brown, or red may also be present.
C horizon:
Color--multicolored in shades of gray, yellow, brown, red or white
Texture--sandy loam, fine sandy loam, sandy clay loam, or loam saprolite
Cg horizon, where present:
Color--hue of 7.5YR to 5Y, value of 5 to 7, and chroma of 1 or 2
Texture-variable and can include sandy loam, sandy clay loam, clay loam, sandy clay or loam saprolite.
Redoximorphic features--iron accumulations in shades of yellow, brown, or red
COMPETING SERIES: There are no other known series in this family. Soils in closely related families are:
Brewback soils--have a depth to soft bedrock of 20 to 40 inches.
Crawfordville--have a depth to soft bedrock of 20 to 40 inches and have an abrupt textural change between the A and Bt horizons.
Enon soils--are well drained.
Helena soils--are more acid throughout and have less than 35 percent base saturation
Iredell soils--do not have redox depletions within the upper 10 inches of the Bt horizon
Winnsboro soils--do not have redox depletions within the upper 10 inches of the Bt horizon
GEOGRAPHIC SETTING:
Landscape: Piedmont
Landform: Ridges and hill slopes
Geomorphic Component: Interfluves and side slopes
Hillslope Profile Position: Toe slope, depressions, and heads of drains
Parent Material: Residuum from intermediate and mafic crystalline rocks
Slope: 0 to 10 percent
Elevation: 400 to 800 feet
Frost-Free Period: 185 to 225 days
Mean Annual Air Temperature: 58 to 65 degrees F
Mean Annual Precipitation: 37 to 55 inches
GEOGRAPHICALLY ASSOCIATED SOILS: In addition to the soils that are closely related are:
Pittsboro soils--have redox depletions below the upper 10 inches of the Bt horizon and have a depth to soft bedrock of 20 to 40 inches
Virgilina soils--have smectitic mineralogy and a depth to hard bedrock of 20 to 40 inches
Wilkes soils--are well drained and have a depth to soft bedrock of less than 20 inches
Wynott soils--are well drained and have a depth to soft bedrock of 20 to 40 inches
DRAINAGE AND PERMEABILITY:
Drainage Class (Agricultural): Somewhat poorly drained
Internal Free Water Occurrence: Moderately deep, common
Saturated Hydraulic Conductivity Class: Moderately low to moderately high
USE AND VEGETATION:
Major Uses: Mostly cultivated
Dominant Vegetation: Where cultivated--tobacco, corn, soybean, small grain, pasture, and hayland. Dominant forest vegetation includes a mix of hardwood and pine. Native species include loblolly pine, shortleaf pine, Virginia pine, sweetgum, willow oak, red oak, white oak, yellow-poplar, and American elm. Understory species include summersweet clethra, greenbrier, eastern cedar, eastern redbud, flowering dogwood, honeysuckle, and American holly.
DISTRIBUTION AND EXTENT:
Distribution: Georgia, North Carolina, and Virginia.
Extent: Moderate
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Orange County, North Carolina; 1975.
REMARKS: Sedgefield was formerly included with the Helena series but is less acid and has higher base saturation.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from the soil surface to a depth of 13 inches.
Albic horizon - the zone from 7 to 13 inches below the surface.
Argillic horizon - the zone from 13 to 33 inches below the surface.
Features of Aquultic Hapludalfs - gray redox depletions in the upper 10 inches of the argillic horizon (Bt1) and base saturation of 35 to 60 percent in the zone between depths of 37 and 65 inches.
Revised: RLV 9/5/97; DTA 6/2/05 to update format.
ADDITIONAL DATA:
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
NC0099 SEDGEFIELD 0-10 58-66 180-225 40-60 400-800
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness
NC0099 NONE 1.0-1.5 PERCHED JAN-MAR >60
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC-
NC0099 0-13 LS 0-5 85-100 3-10 2-10
NC0099 0-13 FSL SL L 0-5 85-100 8-20 4-15
NC0099 0-13 SCL 0-5 85-100 20-35 10-25
NC0099 13-33 SC CL C 0-5 95-100 35-60 15-35
NC0099 33-37 SL SCL CL 0-5 90-100 10-35 4-20
NC0099 37-65 VAR - - - -
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll
NC0099 0-13 4.5-6.5 .5-2. 0-0 2.0-6.0 LOW
NC0099 0-13 4.5-6.5 .5-2. 0-0 2.0-6.0 LOW
NC0099 0-13 4.5-6.5 .5-2. 0-0 0.6-2.0 LOW
NC0099 13-33 4.5-6.5 0.-.5 0-0 0.06-0.2 HIGH
NC0099 33-37 5.6-8.4 0.-.5 0-0 0.6-2.0 MODERATE
NC0099 37-65 - - - -
National Cooperative Soil Survey
U.S.A.