LOCATION CHENNEBY AL+GA MS NC SC TN VA
Established Series
Rev. JAC/CH/JLN
04/2011
CHENNEBY SERIES
The Chenneby series consists of very deep, somewhat poorly drained, moderately permeable soils that formed in loamy and silty sediments on flood plains. Slopes range from 0 to 3 percent.
TAXONOMIC CLASS: Fine-silty, mixed, active, thermic Fluvaquentic Dystrudepts
TYPICAL PEDON: Chenneby silt loam--forested. (Colors are for moist soil unless otherwise stated.)
A1--0 to 3 inches; dark grayish brown (10YR 4/2) silt loam; weak fine granular structure; friable; many fine and medium roots; strongly acid; clear smooth boundary. (0 to 12 inches thick)
A2--3 to 16 inches; brown (10YR 4/3) silt loam; weak fine granular structure; friable; many fine and medium roots; few fine faint light yellowish brown (10YR 6/4) masses of iron accumulations; strongly acid; clear wavy boundary. (0 to 14 inches thick)
Bw1--16 to 24 inches; brown (10YR 4/3) silt loam; weak medium subangular blocky parting to weak fine granular structure; friable; common fine roots; common medium distinct brown (7.5YR 4/4) masses of iron accumulations and common medium distinct light brownish gray (2.5Y 6/2) iron depletions; very strongly acid; clear wavy boundary. (4 to 14 inches thick)
Bw2--24 to 36 inches; dark grayish brown (10YR 4/2) silt loam; weak medium subangular blocky structure; friable; few fine roots; few fine quartz gravel; common medium distinct gray (5Y 5/1) iron depletions; very strongly acid; gradual wavy boundary. (0 to 24 inches thick)
Bw3--36 to 55 inches; dark grayish brown (10YR 4/2) silt loam; weak medium subangular blocky structure; friable; few fine roots; few fine quartz gravel; common medium distinct dark gray (5Y 4/1) iron depletions; very strongly acid; gradual wavy boundary. (0 to 24 inches thick)
Cg--55 to 72 inches; gray (5Y 5/1) silty clay loam; massive, firm; few fine roots; few quartz gravel; common fine distinct olive (5Y 5/3) masses of iron accumulations; very strongly acid.
TYPE LOCATION: Talladega County, Alabama; 2 miles west of McElderry and 75 feet north of Farm Market Road in the NW1/4SE1/4 sec. 3, T. 18 S., R. 6 E.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 30 to 70 inches. Depth to rock is more than 6 feet. Mica flakes range from none to common in the solum. Chenneby soils do not have iron depletions in shades of gray immediately below the A horizon. Reaction ranges from strongly acid through moderately acid in the A horizon, except where limed, and from extremely acid through moderately acid in the B and C horizons.
The A or Ap horizon has hue of 7.5YR or 10YR, value of 3 through 5, and chroma of 2 through 4. Thickness of A horizons with value of 3 and chroma of 2 is 6 inches or less. Iron accumulations in shades of brown range from none to common. Texture is silt loam, loam, or silty clay loam.
The Bw1 horizon has hue of 7.5YR or 10YR, value of 3 through 5, and chroma of 3 or 4. Iron accumulations in shades of brown and iron depletions in shades of brown and gray range from common to many. Texture is silt loam, or silty clay loam
The Bw2, or Bg horizon has hue of 5YR through 5Y, value of 4 through 6, and chroma of 2 through 6, or it is mottled in shades of these colors. Iron depletions of chroma 2 or less are within 24 inches of the surface. Iron accumulations in shades of brown and iron depletions in shades of brown and gray range from common to many. Texture is silt loam, silty clay loam or rarely loam or clay loam. Some pedons have a transitional BC horizon with colors and textures similar to the Bw2 horizon.
The Cg horizon has hue of 10YR through 5Y, value of 4 through 6, and chroma of 0 through 2. Iron accumulations in shades of brown and olive range from none to many. Texture ranges from silty clay loam to sandy loam.
2C or 2Cg (where present) Shades of brown, yellow, or gray. Texture is sandy loam, loam, silt loam (with greater than 15% fine sand and coarser) or is stratified sand, silt, and sometimes gravel below a depth of 60 inches
COMPETING SERIES: There are no other known series in the same family. Competing series in other families include the
Chewacla,
Kirkville,
Lobelville,
Mooreville,
Oaklimeter, and
Sardis series. Chewacla, Kirkville, Lobelville, and Mooreville soils have more than 15 percent sand coarser than very fine sand. Oaklimeter soils have less than 18 percent clay. Sardis soils have siliceous mineralogy.
GEOGRAPHIC SETTING: Chenneby soils are on flood plains and depressions. Slope gradients range from 0 to 3 percent. Chenneby soils are subject to occasional or frequent flooding of very brief duration or ponding. During periods of high rainfall the water table is 1.0 foot to 2.5 feet from the surface. The soil formed in silty alluvium 3 to 6 feet thick. Near the type location, average annual rainfall is 52 inches and the average annual air temperature is 63 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing
Chewacla and
Lobelville series and the
Arkabutla,
Choccolocco,
Leadvale,
Lee, Mathison, McQueen,
Shellbluff,
Sylacaugaas,
Cascilla, and
Urbo series. Arkabutla, Lee, Mathison, and Urbo soils have dominant chroma of 2 or less between the A1 or Ap and a depth of 20 inches. Arkabutla soils have iron depletions in shades of gray immediately below the Ap. Choccolocco, Leadvale, McQueen, and Sylacauga soils have Bt2 horizons. Shellbluff soils are well drained to moderately well drained. Cascilla soils are well drained.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained. Runoff is slow. Permeability is moderate.
USE AND VEGETATION: About 50 percent of the Chenneby soils are used for cotton, corn, soybeans, and pasture. The native vegetation is ash, hackberry, birch, ironwood, sycamore, water oak, yellow-poplar, sweetgum, and pine.
DISTRIBUTION AND EXTENT: Alabama, Arkansas, Georgia, Mississippi, North Carolina, South Carolina, Tennessee, and Virginia. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Talladega County, Alabama; 1969.
REMARKS: These soils have been included with the Chewacla series.
ADDITIONAL DATA:
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
AL0026 CHENNEBY 0- 2 - - - -
AL0105 CHENNEBY 0- 2 - - - -
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness
AL0026 COMMON 1.0-2.5 APPARENT JAN-MAR 60-60
AL0105 NONE - APPARENT - 60-60
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC-
AL0026 0-16 L SIL 0- 0 95-100 12-27 -
AL0026 0-16 SICL 0- 0 95-100 27-35 -
AL0026 16-55 L SIL SICL 0- 0 95-100 12-35 -
AL0026 55-72 SR SL SICL 0- 0 100-100 8-30 -
AL0105 0-16 L SIL 0- 0 95-100 12-27 -
AL0105 0-16 SICL 0- 0 95-100 27-35 -
AL0105 16-55 L SIL SICL 0- 0 95-100 12-35 -
AL0105 55-72 SR SL SICL 0- 0 100-100 8-30 -
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll
AL0026 0-16 4.5- 6.0 .5-3. 0- 0 0.6- 2.0 LOW
AL0026 0-16 4.5- 6.0 .5-3. 0- 0 0.6- 2.0 LOW
AL0026 16-55 4.5- 6.0 - 0- 0 0.6- 2.0 LOW
AL0026 55-72 4.5- 6.0 - 0- 0 2.0- 6.0 LOW
AL0105 0-16 4.5- 6.0 .5-2. 0- 0 0.6- 2.0 LOW
AL0105 0-16 4.5- 6.0 .5-2. 0- 0 0.6- 2.0 LOW
AL0105 16-55 4.5- 6.0 - 0- 0 0.6- 2.0 LOW
AL0105 55-72 4.5- 6.0 - 0- 0 2.0- 6.0 LOW
National Cooperative Soil Survey
U.S.A.