LOCATION CONABY NCEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, semiactive, nonacid, thermic Histic Humaquepts
TYPICAL PEDON: Conaby muck--cultivated.
(Colors are for moist soil unless otherwise stated.)
Oap--0 to 7 inches; very dark gray (10YR 3/1) broken face and rubbed sapric material; less than 1 percent fiber unrubbed and rubbed; moderate medium granular structure; very friable; many organic coated sand grains; common crop residue; very strongly acid; clear smooth boundary. (3 to 9 inches thick)
Oa2--7 to 11 inches; black (10YR 2/1) broken face and rubbed sapric material; about 5 percent fiber unrubbed, less than 1 percent rubbed; moderate medium subangular blocky structure; friable; few clean sand grains; common pieces of charcoal and pockets of ash; extremely acid; clear smooth boundary. (Combined thickness of the Oa horizons is 8 to 16 inches)
Oa3--11 to 13 inches; very dark grayish brown (10YR 3/2) broken face and rubbed sapric material; about 2 percent fiber unrubbed, less than 1 percent rubbed; weak fine subangular blocky structure; very friable; common clean sand grains; extremely acid; clear smooth boundary.
A1--13 to 17 inches; dark brown (10YR 3/3) sand; single grained; loose; thin organic coating on sand grains; very strongly acid; clear smooth boundary. (0 to 5 inches thick)
A2--17 to 21 inches; grayish brown (10YR 5/2) sand; single grained; loose; few fine roots; few small old roots channels; few fine flakes of mica; few fine faint yellowish brown masses of iron accumulation; very strongly acid; clear smooth boundary. (3 to 8 inches thick)
Bg--21 to 33 inches; very dark gray (5Y 3/1) sandy loam; weak medium subangular blocky structure; friable; few fine roots and root channels; few medium prominent olive brown (2.5Y 4/4) and light olive brown (2.5Y 5/6) masses of iron accumulation; common flakes of mica; very strongly acid; gradual smooth boundary. (0 to 16 inches thick)
Cg--33 to 74 inches; dark greenish gray (5GY 4/1) stratified sand and sandy loam; massive; friable; few partially decayed roots in upper part; common flakes of mica; moderately acid.
TYPE LOCATION: Washington County, North Carolina; approximately 9.5 miles southeast of Plymouth, North Carolina and 0.8 mile southwest of North Carolina 99; 0.45 mile north of No. 10 Canal and 75 feet east of main north-south in cut 15.
RANGE IN CHARACTERISTICS:
Solum Thickness: 20 to 40 inches
Depth to Bedrock: Greater than 60 inches
Depth to Seasonal High Water Table: 0 to 12 inches, November to May
Soil Reaction: extremely acid to strongly acid in the upper part of the control section and moderately acid to mildly alkaline in the lower part of the control section and in the C horizons
Other Features: Organic surface layers 6 to 18 inches; Fragments of wood and charcoal, and pockets of ash range from none to common in the organic horizons; few to common fine flakes of mica occur throughout the mineral portion of the soil
Oap or Oa1 horizon:
Color--hue of 5YR to 2.5Y, value of 2 or 3, chroma of 1 or 2
Texture--unrubbed fiber content ranges from 2 to 15 percent and the rubbed fiber content is less than 2 percent in undisturbed layers
Oa2 and Oa3 horizons:
Color--hue of 2.5YR to 2.5Y or is neutral, value of 2 or 3, and chroma of 0 to 4
Texture--unrubbed fiber content ranges from 2 to 15 percent and the rubbed fiber content is less than 2 percent in undisturbed layers
A horizon:
Color--hue of 7.5YR to 5Y, value of 2 to 5, and chroma of 1 to 3
Texture--sand, loamy sand, fine sand, loamy fine sand, sandy loam, fine sandy loam, or their mucky analogues
Bg horizon (if it occurs):
Color--hue of 10YR to 5Y, value of 3 to 5, and chroma of 1 or 2
Texture--sandy loam, fine sandy loam, or loam
Redoximorphic features--Few to common fine and medium masses of iron accumulation of higher in shades brown, red or yellow are present in this horizon in most pedons.
C horizon (if it occurs):
Color--hue of 10YR to 5Y, values of 3 to 5, and chroma of 3 or 4
Texture--sand, fine sand, loamy sand, loamy fine sand, sandy loam, or fine sandy loam. Thickness is less than 6 inches.
Cg horizon:
Color--has hue of 10YR to 5G, values of 4 to 6 and chroma of 0 to 2
Texture--commonly sand or loamy sand or is stratified with these textures and have thin layers of sandy loam or finer textures.
COMPETING SERIES: There are no other series in the same family.
GEOGRAPHIC SETTING:
Landscape: Coastal Plain
Landform: Marine Terrace (on broad level flats of the Pamlico Surface)
Elevation: 5 to 25 feet above mean sea level
Parent Material: Sandy and loamy marine sediments
Mean Annual Air Temperature: 60 to 63 degrees
Mean Annual Precipitation: 48 to 54 inches
Frost Free Period: 210 to 250 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Arapahoe soils--very poorly drained soils (seasonal high water table 0 to 12 inches) on similar landscapes
Belhaven soils--very poorly drained organic soils (seasonal high water table 0 to 12 inches) with organic layers 16 to 51 inches thick on similar landscapes
Cape Fear soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine family on similar landscapes
Gullrock soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in coarse-silty family on similar landscapes
Hyde soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-silty family on similar landscapes
Hydeland soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-silty family on similar landscapes
Pettigrew soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine family on similar landscapes
Ponzer soils--very poorly drained organic soils (seasonal high water table 0 to 12 inches) with organic layers 16 to 51 inches thick
Portsmouth soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy on similar landscapes
Roper soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-silty family on similar landscapes
Wasda soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy family on similar landscapes
Weeksville soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in coarse-silty family on similar landscapes
DRAINAGE AND PERMEABILITY:
Agricultural Drainage Class: Very poorly drained
Permeability: Moderate or moderately slow in the organic layers and moderately rapid in the mineral horizons
Runoff: Very slow
USE AND VEGETATION:
Major Uses: Mostly wooded
Dominant Vegetation: Where wooded--pond pine (Pinus serotina), loblolly pine (Pinus taeda), red maple (Acer rubrum), sweetgum (Liquidambar styraciflua), sweetbay magnolia (Magnolia virginiana), redbay (Persea borbonia), and baldcypress (Taxodium distichum). Major understory species include dense stands of gallberry (Ilex spp.), reeds (Arundinaria tecta), greenbrier (Smilex spp.), fetter bush (Leucothoe spp.), and other species. Where cultivated--corn, soybeans, small grains and truck crops.
DISTRIBUTION AND EXTENT:
Distribution: Atlantic Coastal Flatwoods in North Carolina and possibly Virginia, South Carolina, and other southern states.
Extent: small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Washington County, North Carolina; 1975.
REMARKS: Conaby soils were classified in the Half-Bog Great Soil Group and mapped as mucky phases of the Pocomoke and Torhunta series.
Diagnostic horizon and features recognized in this pedon are:
Histic epipedon -the zone from the surface to a depth of 13 inches (the Oa horizons.)
Cambic horizon -in the zone between depths of 17 to 33 inches (the Bg horizon.)
Aquic conditions -observed periodic endosaturation and iron depletions with chroma of 2 or less in mineral horizons that are not coated with organic matter (Bg and Cg horizons)
Used in MLRA: 153A, 153B
ADDITIONAL DATA: None
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation NC0111 CONABY 0-2 60-63 210-250 48-54 5-25SOI-5 FloodL FloodH Watertable Kind Months Bedrock NC0111 RARE 0-1.0 APPARENT DEC-MAY 60-60
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- NC0111 0-13 MUCK 0-0 0-0 20-60 NC0111 13-21 S LS LFS 0-0 96-100 5-12 6-19 NC0111 21-33 SL FSL L 0-0 96-100 10-18 3-7 NC0111 33-74 SR S SL 0-0 96-100 5-18 2-15
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll NC0111 0-13 3.5-5.5 20-60 0-0 0.2-2.0 LOW NC0111 13-21 3.5-5.5 4.-15 0-0 2.0-6.0 LOW NC0111 21-33 3.5-5.5 1.-3. 0-0 2.0-6.0 LOW NC0111 33-74 3.5-6.5 0.-1. 0-0 2.0-6.0 LOW