LOCATION STONO SC+NCEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, thermic Typic Argiaquolls
TYPICAL PEDON: Stono fine sandy loam--cultivated.
(Colors are for moist soil.)
Ap--0 to 9 inches; black (10YR 2/1) fine sandy loam; weak fine granular structure; friable; many fine roots; few fine and medium dark red and strong brown concretions; strongly acid; clear smooth boundary. (7 to 10 inches thick)
A12--9 to 17 inches; black (10YR 2/1) fine sandy loam; weak medium granular structure; firm in place, friable when removed; few fine roots; common fine pores; strongly acid; clear smooth boundary. (3 to 10 inches thick)
B1g--17 to 23 inches; very dark gray (10YR 3/1) fine sandy loam, few fine faint dark reddish brown mottles; weak medium subangular blocky structure; friable; few fine roots; many fine pores; strongly acid; gradual smooth boundary. (3 to 6 inches thick)
B2tg--23 to 37 inches; dark gray (10YR 4/1) sandy clay loam; weak medium subangular blocky structure; friable; common medium reddish brown concretions; thin patchy clay films on faces of peds; medium acid; gradual wavy boundary. (12 to 30 inches thick)
IICg--37 to 54 inches; gray (10YR 6/1) loamy fine sand; single grained; friable; many fine flakes of mica; medium acid.
TYPE LOCATION: Charleston County, South Carolina; on James
Island, 1-1/8 miles southeast of Harbor View Road Bridge, 1,050
feet south of Harbor View Road, 925 feet east of Quail Drive.
RANGE IN CHARACTERISTICS: Solum thickness is 35 to 54 inches.
The soil is strongly acid to neutral in the A horizon and in the upper part of the B horizon. It is medium acid to neutral throughout the rest of the profile. The base saturation is 50 percent or more in the A horizon and 60 percent or more throughout the rest of the profile. Content of silt in the particle size control section is less than 20 percent.
The A1 or Ap horizon has hue of 10YR or netural, value of 2 or 3, and chroma of 1. The A2 horizon, where present, has hue of 10YR or neutral, value of 2 to 4, and chroma of 1. The A horizon is fine sandy loam or loamy fine sand.
The B1g horizon, where present, has hue of 10YR, value of 3 or 4, and chroma of 1. It is fine sandy loam, or sandy loam.
The B2tg horizon has hue of 10YR or netural, value of 3 to 7, and chroma of 1. The higher values commonly are in the lower part of the B2tg horizon. Few to common yellowish or reddish mottles or concretions are throughout the B horizon in most pedons. The B2tg horizon commonly is sandy clay loam but includes sandy loam or fine sandy loam.
The B3 horizon, where present, has hue of 10YR, 2.5Y, or neutral, value of 4 to 7, and chroma of 0 to 2. It is fine sandy loam or sandy loam.
The C horizon has hue of 10YR to 5Y or neutral, value of 4 to 7, and chroma of 0 to 2. It is fine sand or loamy fine sand.
COMPETING SERIES: There are no other known series in this family. Bernard, Cape Fear, Carwi+e, Jeanerette, Muldrow, Pocomoke, Portsmouth, Santee, Wadmalaw, and Yonges series are similar soils in other families. Bernard, Cape Fear, Carwile, Muldrow, and Santee soils have more than 35 percent clay in the particle size control section. Jeanerette soils have less than 15 percent fine or coarser sand in the particle size control section. Pocomoke, Portsmouth, and Wadmalaw soils have a base saturation of less than 50 percent in the A horizon. Yonges soils have a color value of more than 3.5 in the A horizon.
GEOGRAPHIC SETTING: Stono soils are on nearly level low marine terraces from 5 to 25 feet above sea level. The soil formed in marine sediments. The mean annual precipitation is about 49 inches; the freeze-free season is about 280 days, and mean annual temperature is about 66 degrees F. near the type location.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the similar Santee and Yonges series, and the Dawhoo, Edisto, Charleston, and Meggett series. Dawhoo soils are sandy throughout. Edisto soils have a fragipan. Charleston and Meggett soils have less than 10 inches of the surface layers having a color value as dark as 3.5.
DRAINAGE AND PERMEABILITY: Very poorly drained; slow runoff; moderately rapid permeability. The water table is above or near the soil surface for as much as 6 months each year.
USE AND VEGETATION: Most of this soil is in forests of tupelo gum, cypress, pond pine, slash pine, and loblolly pine. Cleared and drained areas are used for growing truck crops, soybeans, corn, oats, and pasture.
DISTRIBUTION AND EXTENT: Lower Coastal Plain of South Carolina, Georgia, Florida, North Carolina, and Virginia. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Charleston County, South Carolina; 1942.
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
SC0071 STONO 0- 2 60- 66 240-280 49- 58 0- 50
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness SC0071 COMMON - APPARENT - 60-60SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- SC0071 0-17 LFS 0- 0 100-100 5-18 5- 20 SC0071 0-17 FSL 0- 0 100-100 10-20 7- 10 SC0071 17-37 SCL SL FSL 0- 0 100-100 18-35 6- 10 SC0071 37-54 LFS FS 0- 0 100-100 2-12 1- 4
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll SC0071 0-17 5.1- 7.3 2.-8. 0- 0 2.0- 6.0 LOW SC0071 0-17 5.1- 7.3 2.-8. 0- 0 0.6- 2.0 LOW SC0071 17-37 5.6- 7.3 - 0- 0 2.0- 6.0 LOW SC0071 37-54 5.6- 7.3 - 0- 0 6.0- 20 LOW