LOCATION CHOWAN NC+FLEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, active, nonacid, thermic Thapto-Histic Fluvaquents
TYPICAL PEDON: Chowan silt loam--forested. (Colors are for moist soil unless otherwise stated.)
A--0 to 6 inches; dark grayish brown (10YR 4/2) silt loam; massive; friable; slightly sticky; common medium and coarse roots; moderately acid; gradual wavy boundary. (5 to 12 inches thick)
Cg1--6 to 20 inches; gray (10YR 5/1) silty clay loam; massive; friable; moderately sticky; common coarse roots; moderately acid; gradual wavy boundary.
Cg2--20 to 27 inches; dark grayish brown (10YR 4/2) silt loam; massive; friable; slightly sticky; few coarse roots; moderately acid; gradual wavy boundary. (Combined thickness of the Cg horizon is 15 to 32 inches.)
2Oa--27 to 80 inches; black (5YR 2/1) sapric material; about 30 percent fibers, less than 10 percent rubbed, massive; very friable; common logs and stumps; extremely acid.
TYPE LOCATION: Chowan County, North Carolina; approximately 2 miles east of Edenton, 0.4 mile north of intersection of State Road 1103 and North Carolina Highway 32, 150 feet west of State Road 1103 in a creek bottom.
RANGE IN CHARACTERISTICS:
Horizon Thickness: The surface mineral horizons range from 16 to 40 inches thick. The underlying organic horizons range from 16 to more than 80 inches thick
Depth to Bedrock: Greater than 60 inches
Depth to Seasonal High Water Table: 0 to 6 inches, November to May
Soil Reaction: Extremely acid to moderately acid in the mineral horizons and extremely acid or very strongly acid in the organic horizons
Other Features: Stumps and logs are common throughout the Oa horizon of most pedons
A horizon:
Color--hue of 10YR to 5Y, value of 2 to 5, and chroma of 1 or 2. Pedons with a horizon that have value less than 3 are less than 10 inches thick.
Texture--silt loam, loam, or silty clay loam
Cg horizon:
Color--hue of 10YR to 5Y, value of 2 to 5, and chroma of 1 or 2
Texture--loam, silt loam, silty clay loam, mucky silt loam, or mucky loam
2Oa horizon:
Color--hue of 5YR to 2.5Y, value of 2 or 3, and chroma of 1 to 3
Texture--sapric material 16 inches to several feet thick.
COMPETING SERIES: There are no known competing series.
GEOGRAPHIC SETTING:
Landscape: Coastal Plain
Landform: Floodplains
Elevation: 2 to 15 feet above mean sea level
Parent Material: loamy marine sediments
Mean Annual Air Temperature: 61 to 70 degrees
Mean Annual Precipitation: 44 to 51 inches
Frost Free Period: 220 to 280 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Altavista soils--moderately well drained soils (seasonal high water table 18 to 30 inches) in fine-loamy family on higher adjacent landscapes
Bertie soils--Somewhat poorly drained soils (seasonal high water table 12 to 18 inches) in fine-loamy on higher adjacent landscapes
Chapanoke soils--somewhat poorly drained soils (seasonal high water table 12 to 18 inches) on higher adjacent landscapes
Dogue soils--moderately well drained soils (seasonal high water table 18 to 30 inches) in fine family on higher adjacent landscapes
Dorovan soils--very poorly drained organic soils (seasonal high water table 0 to 12 inches) with organic layers greater than 51 inches thick on similar landscapes
Perquimans--poorly drained soils (seasonal high water table 0 to 12 inches) on slightly higher adjacent landscapes
Roanoke soils--poorly drained soils (seasonal high water table 0 to 12 inches) in fine family on slightly higher adjacent landscapes
State soils--well drained soils (seasonal high water table 48 to 72 inches) in fine-loamy family on higher adjacent landscapes
Wahee soils--somewhat poorly drained soils (seasonal high water table 12 to 18 inches) in fine family on higher adjacent landscapes
Yeopim soils--moderately well drained soils (seasonal high water table 18 to 36 inches) on higher adjacent landscapes
DRAINAGE AND PERMEABILITY:
Agricultural Drainage Class: Poorly drained
Permeability: Moderately slow in the mineral horizons and moderately rapid to moderately slow in the organic horizons. Water covers the surface for six months during most years
USE AND VEGETATION:
Major Uses: Mostly woodland
Dominant Vegetation: Where wooded--green ash (Fraxinus pennsylvanica), baldcypress (Taxodium distichum), sweetgum (Liquidambar styraviflua), red maple (Acer rubrum), water tupelo (Nyssa aquatica), pond pine (Pinus serotina), and Atlantic white-cedar (Chamaecyparis thyoides). Cattails (Typha) and Big Cordgrass (Spartina Cynosuroid) are common in cleared fields.
DISTRIBUTION AND EXTENT:
Distribution: Lower Coastal Plain of North Carolina and Florida, and possibly Virginia, Mississippi, Georgia, and Louisiana.
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Chowan County, North Carolina; 1982.
REMARKS: The nonacid condition is attributed to surface runoff and erosion of soil this pedon.
ADDITIONAL DATA: None
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation NC0146 CHOWAN 0-2 61-70 220-280 44-51 2-15SOI-5 FloodL FloodH Watertable Kind Months Bedrock NC0146 FREQ 0-0.5 APPARENT NOV-MAY 60-60
SOI-5 Depth Texture 3-Inch No-10 Clay% CEC NC0146 0-6 L SIL SICL 0-0 100-100 5-25 3-9 NC0146 6-27 L SIL SICL 0-0 100-100 18-35 4-11 NC0146 27-80 SP 2-12 20-85
SOI-5 Depth -pH-O.M. Salin Permeab Shnk-Swll NC0146 0-6 3.5-6.0 2.-4. 0-0 2.0-6.0 LOW NC0146 6-27 3.5-6.0 1.-4. 0-0 0.2-0.6 LOW NC0146 27-80 3.5-5.0 20-80 0-0 0.2-6.0 LOW