LOCATION RIVERVIEW AL+FL GA NC SC VAEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, thermic Fluventic Dystrudepts
TYPICAL PEDON: Riverview silt loam--forested. (Colors are for moist soil.)
A--0 to 6 inches; very dark grayish brown (10YR 3/2) silt loam; weak medium granular structure; friable; many fine roots; strongly acid; clear wavy boundary. (3 to 12 inches thick)
Bw1--6 to 12 inches; dark yellowish brown (10YR 3/4) loam; weak medium subangular blocky structure; friable; many fine roots; very strongly acid; gradual wavy boundary.
Bw2--12 to 23 inches; dark yellowish brown (10YR 4/4) loam; moderate medium subangular blocky structure; friable; faces of peds are brown (7.5YR 5/4); few flakes of mica; very strongly acid; gradual wavy boundary.
Bw3--23 to 31 inches; yellowish brown (10YR 5/4) loam; weak medium subangular blocky structure; friable; faces of peds are brown (7.5YR 5/4); common flakes of mica; strongly acid; gradual wavy boundary. (Combined thickness of the Bw horizon is 14 to 50 inches.)
BC--31 to 39 inches; yellowish brown (10YR 5/4) fine sandy loam; weak medium subangular blocky structure; friable; few spots of uncoated sand grains; common flakes of mica; few fine distinct yellowish red (5YR 5/6) masses of iron accumulations; very strongly acid; gradual wavy boundary. (0 to 12 inches thick)
C--39 to 70 inches; brownish yellow (10YR 6/6) loamy fine sand; single grained; loose; few thin strata of darker, finer textured material; common flakes of mica; very strongly acid.
TYPE LOCATION: Escambia County, Alabama; 4 miles east of junction of U. S. Highway 29 and Alabama Highway 41 south of Brewton and 1.35 miles east and south on woods road. Site is 10 feet east of road and 0.2 mile north of Conecuh River in the NW1/4SE1/4 sec. 5, T. 1 N., R. 11 E.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 24 to 60 inches. Depth to bedrock is more than 60 inches. Reaction ranges from very strongly acid to slightly acid in the A horizon and from very strongly acid to moderately acid in the Bw, BC, and C horizons. Buried A and/or B horizons, present in some pedons below a depth of 25 inches, have the same range in color and texture as the A or B horizons. Content of mica flakes ranges from none to common throughout the solum.
The A or Ap horizon has hue of 7.5YR or 10YR, value of 3 to 5, and chroma of 2 to 6. Horizons with value of 3 and chroma of 2 are less than 7 inches thick. Texture is very fine sandy loam, loam, silt loam, fine sandy loam, sandy loam, loamy fine sand, or loamy sand.
The Bw horizon has hue of 7.5YR or 10YR, value of 3 to 6 and chroma of 3 to 8. Some pedons have a subhorizon of the Bw with hue of 5YR, value of 4 or 5, and chroma of 3 or 4. Iron concentrations in shades of yellow, brown, or red range from none to common. At depths of 24 inches or more, iron depletions of chroma 2 or less range from none to common. Texture is clay loam, sandy clay loam, loam, fine sandy loam, silt loam, or silty clay loam.
The BC horizon, present in most pedons, has hue of 7.5YR or 10YR, value of 3 to 5, and chroma of 2 to 6. Iron concentrations in shades of yellow, brown, or red range from none to common. At depths of 24 inches or more, iron depletions of chroma 2 or less range from none to common. Texture is sandy clay loam, loam, sandy loam, or fine sandy loam.
The C horizon has hue of 7.5YR or 10YR, value of 4 to 8, and chroma of 4 to 8. Iron concentrations in shades of yellow, brown, or red range from none to common. Iron depletions in shades of gray, brown, or yellow range from none to common. Texture is loam, fine sandy loam, sandy loam, loamy fine sand, loamy sand, or sand. Strata of finer or coarser textured material are present in most pedons. Flakes of mica range from few to common.
COMPETING SERIES: Starr is the only known series in the same family. Other competing series in closely related families include the Congaree and Shellbluff series. Starr soils typically have Bw horizons with hue of 7.5YR or redder throughout. Congaree soils do not have a cambic horizon. Shellbluff soils have a fine-silty particle size control section.
GEOGRAPHIC SETTING: Riverview soils are on high parts of flood plains of rivers and streams draining the Coastal Plain and Southern Piedmont. Slopes range from 0 to 5 percent. They formed in loamy alluvium. The average annual air temperature ranges from 61 to 68 degrees F. and average annual precipitation ranges from 50 to 60 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Buncombe, Chewacla, State, Wehadkee, and Wickham series. Buncombe soils are on slightly higher parts of natural levees and are coarse-loamy. State and Wickham soils are on adjacent low terraces and have argillic horizons. The somewhat poorly drained Chewacla and the poorly drained Wehadkee soils are in slightly lower positions.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is slow. Permeability is
moderate. These soils flood for short periods mostly in winter or early spring months.
USE AND VEGETATION: Chiefly in woodland. Native vegetation is forests of
sweetgum, oak, beech, yellow poplar and loblolly pine.
DISTRIBUTION AND EXTENT: Coastal Plain and Southern Piedmont of Alabama,
Florida, Georgia, North Carolina, South Carolina, and Virginia. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Escambia County, Alabama; 1969.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon -- the zone from the surface to a depth of 6 inches (A horizon)
Cambic horizon -- the zone from 6 to 31 inches (Bw1, Bw2, and Bw3 horizons)
Dystric feature -- base saturation less than 60 percent in subhorizons between depths of 25 and 75 cm below the soil surface
Fluventic feature -- irregular decrease in organic matter content with depth
ADDITIONAL DATA:
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
AL0022 RIVERVIEW 0-5 61- 68 200-230 50-60 100-500
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness AL0022 COMMON 3.0-5.0 APPARENT DEC-MAR >60SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- AL0022 0-6 SIL L VFSL 0-0 100-100 10-27 3-12 AL0022 0-6 LS LFS 0-0 90-100 3-10 2-6 AL0022 0-6 SL FSL 0-0 90-100 4-18 3-12 AL0022 6-39 SCL SICL L 0-0 100-100 18-35 4-10 AL0022 39-70 LFS SL S 0-0 100-100 4-18 2-6
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll AL0022 0-6 4.5-6.5 .5-2. 0-0 0.6-2.0 LOW AL0022 0-6 4.5-6.5 .5-2. 0-0 2.0-6.0 LOW AL0022 0-6 4.5-6.5 .5-2. 0-0 0.6-2.0 LOW AL0022 6-39 4.5-6.0 .5-1. 0-0 0.6-2.0 LOW AL0022 39-70 4.5-6.0 .5-1. 0-0 2.0-6.0 LOW