LOCATION LONGVIEW MS+TNEstablished Series
TAXONOMIC CLASS: Fine-silty, siliceous, active, thermic Glossaquic Hapludalfs
TYPICAL PEDON: Longview silt loam -- 0 to 2 percent slopes - woodland. (Colors are for moist soil unless otherwise stated.)
A--0 to 4 inches; grayish brown (10YR 5/2) silt loam; few fine distinct yellowish brown (10YR 5/6) mottles; weak fine and medium granular structure; friable; common fine and medium roots; few fine brown concretions; extremely acid; clear smooth boundary. (3 to 6 inches thick; Ap is 4 to 10 inches thick)
Bw--4 to 9 inches; light yellowish brown (10YR 6/4) silt loam; few fine faint yellowish brown and light gray mottles; weak medium subangular blocky structure; friable; few medium roots; few fine brown concretions; extremely acid; clear smooth boundary. (0 to 6 inches thick)
Bt1--9 to 15 inches; light yellowish brown (2.5Y 6/4) silt loam; common fine distinct light gray (10YR 7/2) mottles; weak fine and medium subangular blocky structure; friable; few fine roots; many fine pores; oriented clay in trace amounts along voids and channels; few fine brown concretions; extremely acid; clear smooth boundary.
Bt2--15 to 26 inches; yellowish brown (10YR 5/6) silt loam; many fine and medium distinct light brownish gray (2.5Y 6/2) mottles; weak fine and medium subangular blocky structure; friable; slightly plastic; many fine pores; few very thin oriented clay films along pores; few brown and black concretions; few gray silt pockets and coats; extremely acid; gradual wavy boundary. (Combined thickness of the Bt horizon is 12 to 24 inches)
B/E1--26 to 34 inches; mottled light brownish gray (2.5Y 6/2), yellowish brown (10YR 5/6) and strong brown (7.5YR 5/6) silt loam (B); mottles are fine and medium; moderate medium prismatic parting to moderate medium subangular blocky structure; friable to firm; brown portion slightly brittle and compact; few fine roots; few fine brown and black concretions; many fine pores; few thin patchy clay films; common gray silt coats (E) on faces of peds, in pockets and on faces of prisms; very strongly acid; gradual wavy boundary. (6 to 14 inches thick)
B/E2--34 to 55 inches; light brownish gray (2.5Y 6/2) silt loam; common fine and medium distinct strong brown (7.5YR 5/6) and yellowish brown (10YR 5/6) mottles; moderate medium prismatic structure parting to moderate medium subangular blocky; friable, slightly brittle and compact; patchy clay films; few brown and black concretions; gray silt coats (E) on faces of peds and prisms; very strongly acid; gradual wavy boundary. (14 to 30 inches thick)
B/E3--55 to 72 inches; light brownish gray (2.5Y 6/2) silty clay loam (B); common fine and medium distinct yellowish brown (10YR 5/8) mottles; moderate medium prismatic parting to moderate fine and medium subangular blocky structure; firm, plastic, slightly sticky; common clay films on void walls and faces of peds; gray silt coatings (E) on faces of peds; few fine brown and black concretions; very strongly acid.
TYPE LOCATION: Oktibbeha County, Mississippi; 4.5 miles southwest of Starkville, on State Highway 25 from intersection of State Highway 12, 366 yards east and 35 feet south into woods. NE1/4NW1/4 sec. 32, T. 18 N., R 14 E.
RANGE IN CHARACTERISTICS: Solum thickness is more than 60 inches. The soil ranges from extremely acid to strongly acid in all horizons. Base saturation by sum of cations at 50 inches below the upper boundary of the B horizon ranges from 38 to 50 percent. Calcium-magnesium ratio is 1 or more in the lower part of the B horizon. The particle-size control section, the upper 20 inches of the Bt horizon, has 18 to 27 percent clay.
The A horizon has hue of 10YR, value of 4 to 6, and chroma of 2 to 4.
The Bw horizon, if present, has hue of 10YR, value of 5 or 6, and chroma of 4 to 6. Some pedons have an E horizon with hue of 10YR, value of 5 to 7, and chroma of 2 or 3.
The Bt horizon has hue of 10YR, value of 5 or 6, and chroma of 3 to 6, or it has hue 2.5Y value of 6, and chroma of 4. Mottles having chroma of 2 or less are in the upper 10 inches of the argillic horizon. It is silt loam or silty clay loam.
The B part of the B/E horizon has hue of 10YR, value of 5 to 6, chroma of 1 to 6, with few to many mottles in shades of brown and yellow; or, it is mottled in shades of yellow, gray, and brown. It is silt loam or silty clay loam, and is commonly slightly brittle and compact. The E part has hue to 10YR, value of 6 or 7, and chroma of 1 or 2; the E part is silty material interfingered between peds of the B part.
COMPETING SERIES: Vick is the only competing series. Closely related series are the Askew, Bude, Duralde, Frizzell, Glenmora, Pheba, Prentiss, and Tippo series. Vick soils have a clayey 2B horizon. The Askew soils do not have interfingering of albic material into the argillic horizon and have mixed mineralogy. The Bude, Pheba, and Prentiss soils have a fragipan; also Bude soils have mixed mineralogy; Pheba soils are coarse-silty in the control section; and Prentiss soils are coarse-loamy in the control section. The Duralde, Frizzell, and Tippo soils have tongues or interfingering of albic material in the argillic horizon, but they differ from Longview soils, in part, in that Duralde soils have mixed mineralogy, and Frizzell and Tippo soils have a coarse-silty particle-size class. Glenmora soils have reddish mottles in the lower part of the Bt horizon.
GEOGRAPHIC SETTING: The Longview soils formed in loamy material that is high in silt in uplands of the Southern Coastal Plain Major Land Resource Area. These are nearly level to gently sloping soils; slopes range from 0 to 5 percent. The climate is warm and humid. Mean annual temperature is about 68 degrees F., and mean annual precipitation is about 51 inches near the type location.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Pheba and Prentiss soils of the competing series and the Adaton, Falkner, and Stough soils. Somewhat poorly drained Pheba soils are in similar landscape positions as the Longview soils, and moderately well drained Prentiss soils are on slightly higher terrain. Poorly drained Adaton soils, which are in nearby depressions, have a gray matrix in more than 60 percent of the mass between the A horizon and 30 inches depth. Somewhat poorly drained Falkner soils, which are on adjacent convex slopes of low relief, do not have a B/E horizon and do have a clayey 2Bt horizon. Somewhat poorly drained Stough soils, which are on nearby terraces, have a coarse-loamy control section.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained; slow runoff; moderately slow permeability. Water is perched at a depth of 1.0 to 3.0 feet during wet seasons in winter and early in spring.
USE AND VEGETATION: Most of the Longview soils are used for growing corn, soybeans, grain sorghum, pasture, and hay. The woodland vegetation is sweetgum, hickory, gum, oaks, and pines.
DISTRIBUTION AND EXTENT: Mississippi. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama
SERIES ESTABLISHED: Oktibbeha County, Mississippi; 1970.
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 9 to 72 inches (Bt1, Bt2, B/E1, B/E2, B/E3 horizons).
Glossaquic features - interfingering of albic materials and albic materials surrounding some peds in the zone from approximately 26 to 72 inches horizon (B/E1, B/E2, B/E3 horizons), and mottles that have chroma of 2 or less in the upper 10 inches of the argillic horizon (Bt1, Bt2 horizons).
ADDITIONAL DATA: Engineering Test Data for one pedon are published in Soil Survey Oktibbeha County, Mississippi (issued 1977) pp. 70 and 71. Physical and chemical data were obtained on one pedon from the Soil Genesis and Morphology Laboratory of the Mississippi Agricultural and Forestry Experiment Station, Mississippi State, Mississippi.