LOCATION POOLEVILLE MS

Established Series
Rev. WMK:RBH:WIS
10/2018

POOLEVILLE SERIES

The Pooleville series consists of deep, somewhat poorly drained soils with moderately slow permeability. These soils are in uplands and high terraces of the Southern Coastal Plain and Southern Mississippi Valley Silty Uplands Major Land Resource Areas. These soils formed in silty sediments. Slopes range from 0 to 2 percent. A seasonal water table is at 1.5 to 2.5 feet.

TAXONOMIC CLASS: Fine-silty, siliceous, active, thermic Aquic Glossudalfs

TYPICAL PEDON: Pooleville silt loam - pasture. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 4 inches; dark brown (10YR 4/3) silt loam; weak fine granular structure; friable; many fine roots; strongly acid; abrupt smooth boundary. (3 to 7 inches thick)

B/E1--4 to 14 inches; yellowish brown (10YR 5/6) silt loam (B); common fine and medium distinct light brownish gray (10YR 6/2), and faint light yellowish brown (10YR 6/4), and yellowish brown (10YR 5/8) mottles; weak medium subangular blocky structure; friable; common fine roots; few fine voids and pores; tongues of light brownish gray (10YR 6/2) silt (E) 2 to 3 inches wide comprise about 30 percent of the horizon; very strongly acid; gradual irregular boundary.

B/E2--14 to 26 inches; yellowish brown (10YR 5/6) silt loam (B); common fine and medium distinct light brownish gray (10YR 6/2), and faint light yellowish brown (10YR 6/4), and brownish yellow (10YR 6/8) mottles; weak medium subangular blocky structure; friable; few fine roots; few fine pores; few fine black and brown stains and concretions; tongues of light brownish gray (10YR 6/2) silt (E) 2 to 3 inches wide comprises about 30 percent of the horizon; very strongly acid; gradual irregular boundary.

B/E3--26 to 42 inches; mottled yellowish brown (10YR 5/8), light gray (10YR 7/2), and pale brown (10YR 6/3) silt loam (B); weak medium subangular blocky structure; friable; few fine roots; few fine voids and pores; few fine black and brown stains and concretions; tongues of light brownish gray (10YR 6/2) silt 2 to 4 inches wide comprise about 30 percent of the horizon; patchy clay films on faces of peds; very strongly acid; diffuse irregular boundary.

B/E4--42 to 64 inches; mottled light yellowish brown (2.5Y 6/4), light brownish gray (2.5Y 6/2), and yellowish brown (10YR 5/8) silty clay loam (B); moderate medium subangular blocky structure; firm, plastic; few fine roots; few fine pores; few fine black and brown stains and concretions; few charcoal fragments; tongues of light brownish gray (10YR 6/2) silt (E) 2.5 to 5 inches wide comprise 30 percent of the horizon; patchy clay films on faces of peds; very strongly acid; diffuse wavy boundary. (Combined thickness of B/E horizon is 24 to 60 inches or more.)

Bt--64 to 74 inches, mottled light brownish gray (2.5Y 6/2), light yellowish brown (2.5Y 6/4), and yellowish brown (10YR 5/6) silty clay loam; moderate medium subangular blocky structure; firm and slightly brittle; few fine roots; few fine black and brown concretions; patchy clay films on faces of peds; very strongly acid.

TYPE LOCATION: Union County, Mississippi; 0.6 mile south of Martintown Baptist Church 300 feet west of blacktop road; NE1/4SE1/4NE1/4 sec. 26, T. 7 S., R. 2 E.

RANGE IN CHARACTERISTICS: The solum is 60 inches or more in thickness. The soil is very strongly acid or strongly acid except the surface layer in limed areas.

The A horizon has hue of 10YR, value of 4 or 5, and chroma of 2 to 4, or hue of 2.5Y, value 6, and chroma of 4. Some pedons have a thin A horizon with hue of 10YR, value of 3 or 4, and chroma of 2 or 3. It is silt loam or loam.

The B part of the B/E horizon has hue of 10YR, 7.5YR, or 2.5Y, value of 4 to 6, and chroma of 3 to 6 with mottles in shades of gray. The upper 20 inches of the B horizon is silt loam or silty clay loam and has 18 to 35 percent clay. Below 20 inches the texture range includes clay loam. The E part consists of pockets and tongues with hue of 10YR or 2.5Y, value of 6, and chroma of 1 or 2. These are 1 to 5 inches wide and make up 15 to 40 percent of the volume. It is silt, silt loam, or silty clay loam with less clay than the B part.

The Bt horizon is mottled in shades of brown, gray, and yellow. It is silt loam, silty clay loam, loam, or clay loam.

The C horizon, if present, has a grayish matrix with brownish or yellowish mottles, or is mottled in shades of gray, brown, and yellow. It is silt loam, silty clay loam, or clay loam.

COMPETING SERIES: Metcalf is the only series in the same family. Closely related soils include the Bude, Calloway, Duralde, Falkner, Fred, Frizzell, Leverette, Longview, Messer, and Tippo series. Metcalf soils do not have tongues of albic materials in the upper part of the Bt horizon. Bude and Calloway soils have a bisequum and a fragipan. Duralde soils do not have gray mottles in the upper part of the Bt horizon and the Bt horizon is brittle. Falkner soils do not have a B/E horizon and have a clayey 2B horizon. Fred soils have mixed mineralogy and the B and C horizons are alkaline. Frizzell and Tippo soils have a coarse-silty control section. Leverett and Messer soils do not have gray mottles in the upper part of the B horizon and are better drained. Longview soils do not have tongues of albic material in the upper part of the Bt horizon.

GEOGRAPHIC SETTING: Pooleville soils are on broad, nearly level surfaces on uplands and high stream terraces of the Southern Coastal Plain and Southern Mississippi Valley Silty Uplands Major Land Resource Areas. Slopes are 0 to 2 percent. The soils formed in silty materials. The climate is warm and humid. The mean annual temperature is about 62 degrees Fahrenheit and the mean annual precipitation is about 48 inches.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Bude and Falkner series and the Providence, Tippah, and Wilcox series. The somewhat poorly drained Bude and Falkner soils are in similar positions as the Pooleville soils. Providence soils, which have a fragipan, and Tippah soils, which do not have tongues of albic material into the argillic horizon and contains more clay in the lower B horizon, are on slightly higher slopes. Wilcox soils, which are clayey in the control section, are on steeper hillsides and in similar positions as the Pooleville soils.

DRAINAGE AND PERMEABILITY: Somewhat poorly drained; slow to medium runoff; moderately slow permeability. A seasonal high water table is at a depth of 1.5 to 2.5 feet during wet seasons during winter and early spring.

USE AND VEGETATION: Most of the acreage of this soil is used for cropland or pasture. Principal crops are cotton or soybeans. Common trees in wooded areas are cherrybark oak, sweetgum, loblolly pine, Shumard oak, yellow-poplar, and water oak.

DISTRIBUTION AND EXTENT: Mississippi. The series is of small extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama

SERIES ESTABLISHED: Union County, Mississippi; 1975.

REMARKS: Diagnostic horizons and features recognized in this pedon are:

Ochric epipedon - the zone from the surface to a depth of about 4 inches (Ap horizon).

Argillic horizon - the zone from approximately 4 to 74 inches (B/E3, B/E4, Bt horizons).

Aquic feature - mottles that have chroma of 2 in the upper 10 inches of the argillic horizon (Bt1 horizon).

Glossudalfs feature - deep wide tongue of albic materials in the argillic horizon (B/E3, B/E4, horizons).

ADDITONAL DATA: Laboratory data: Chemical analyses, particle size distribution and engineering test data for the typical pedon are published in the Soil Survey of Union County, Mississippi, (issued April 1979), pp. 86-88.

National Cooperative Soil Survey
U.S.A.