LOCATION PLUMBROOK OH

Established Series
Rev. NHM-TDG-RAR
09/2012

PLUMBROOK SERIES

The Plumbrook series consists of very deep, somewhat poorly drained soils formed in loamy and sandy sediments overlying silty lacustrine sediments on lake plains. Slope ranges from 0 to 2 percent. Mean annual precipitation is 864 mm (34 inches), and mean annual air temperature is 11 degrees C (51 degrees F).

TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, mesic Aquic Hapludolls

TYPICAL PEDON: Plumbrook fine sandy loam, on a nearly level area of a cultivated field at an elevation of 195 meters (640 feet) above mean sea level. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 28 cm (0 to 11 inches); black (10YR 2/1) fine sandy loam, dark gray (10YR 4/1) dry; weak fine and medium granular structure; friable; few fine and very fine roots; strongly acid; clear wavy boundary. [25 to 36 cm (10 to 14 inches) thick]

Bg--28 to 48 cm (11 to 19 inches); dark grayish brown (10YR 4/2) very fine sandy loam; weak coarse subangular blocky structure; friable; few fine and very fine roots; common distinct black (10YR 2/1) organic coatings and dark gray (10YR 4/1) clay depletions on faces of peds; few medium distinct olive brown (2.5Y 4/4) masses of iron accumulation in the matrix; few fine black (10YR 2/1) iron and manganese concretions in the matrix; slightly acid; clear wavy boundary.

Bw--48 to 74 cm (19 to 29 inches); brownish yellow (10YR 6/6) fine sandy loam; weak coarse subangular blocky structure; friable; few fine and very fine roots; common distinct brown (10YR 5/3) clay depletions on faces of peds; many medium prominent light brownish gray (10YR 6/2) and common medium distinct brown (10YR 5/3) iron depletions in the matrix; few fine black (10YR 2/1) iron and manganese concretions in the matrix; neutral; gradual wavy boundary. [Combined thickness of the B horizon is 30 to 81 cm (12 to 32 inches).]

Cg1--74 to 102 cm (29 to 40 inches); grayish brown (10YR 5/2) loamy fine sand; single grain; loose; many coarse prominent brownish yellow (10YR 6/6) masses of iron accumulation in the matrix; neutral; gradual wavy boundary.

Cg2--102 to 165 cm (40 to 65 inches); dark grayish brown (10YR 4/2) fine sand; single grain; loose; few coarse faint gray (10YR 6/1) iron depletions in the matrix; common coarse distinct yellowish brown (10YR 5/4) masses of iron accumulation in the matrix; slightly effervescent; slightly alkaline; clear wavy boundary. [Combined thickness of the C horizon is 61 to 102 cm (24 to 40 inches).]

2Cg3--165 to 203 cm (65 to 80 inches); gray (N 5/) silty clay loam; massive; firm; strongly effervescent; slightly alkaline.

TYPE LOCATION: Erie County, Ohio; about 2 miles northwest of Avery, in Huron Township; 1,200 feet north of the intersection of U.S. Route 250 and Shied Road (Township Road 12) along U.S. Route 250, then 485 feet west; Quadrangle 4; T. 6 N., R. 22 W.; USGS Kimball, Ohio topographic quadrangle; lat. 41 degrees 21 minutes 44 seconds N. and long. 82 degrees 38 minutes 09 seconds W., NAD 27.

RANGE IN CHARACTERISTICS:
Depth to the base of the cambic horizon: 63 to 114 cm (25 to 45 inches)
Depth to carbonates: 51 to 122 cm (20 to 48 inches)
Thickness of the mollic epipedon: 25 to 36 cm (10 to 14 inches)
Particle-size control section: averages more than 75 percent sand finer than medium sand
Depth to the silty lacustrine sediments: 152 to 203 cm (60 to 80 inches)
Rock fragments: glacial erratics of sedimentary and crystalline lithology

Ap horizon:
Hue: 10YR
Value: 2 or 3 (5 or less dry)
Chroma: 1 or 2
Texture: fine sandy loam
Clay content: 5 to 15 percent
Sand content: 52 to 70 percent
Rock fragment content: 0 to 2 percent
Reaction: strongly acid to neutral

Some pedons have an A or AB horizon.

Bg or Bw horizon:
Hue: 10YR
Value: 4 to 6
Chroma: 1 to 6
Texture: dominantly fine sandy loam or very fine sandy loam; subhorizons less than 15 cm (6 inches) thick of loam, sandy loam, or loamy fine sand are common; thin strata up to 10 cm (4 inches) thick of silty clay loam or clay loam are in some pedons
Clay content: 5 to 18 percent
Sand content: 50 to 80 percent
Rock fragment content: 0 to 2 percent
Reaction: moderately acid to neutral, ranging to slightly alkaline in the lower part

Some pedons have a BC or BCg horizon.

C or Cg horizon:
Hue: 10YR or 2.5Y, or is neutral
Value: 4 to 6
Chroma: 0 to 4
Texture: loamy fine sand or fine sand; strata of fine sandy loam, loamy sandy, sandy loam, or sand are common
Clay content: 2 to 10 percent
Sand content: more than 80 percent
Rock fragment content: 0 to 2 percent
Reaction: neutral to moderately alkaline

2Cg horizon (below the series control section):
Hue: 10YR to 5Y, or is neutral
Value: 4 or 5
Chroma: 0 to 2
Texture: silty clay loam
Clay content: 27 to 35 percent
Sand content: less than 20 percent
Rock fragment content: typically absent
Reaction: slightly alkaline or moderately alkaline

COMPETING SERIES: These are the Elrin, Grovecity, Hoopeston, Linder, Wesley, and Yahara series. Elrin soils have sola greater than 114 cm (45 inches) thick. Grovecity soils have more than 2 percent rock fragments in the series control section. Hoopeston and Yahara soils have less than 75 percent sand finer than medium sand in the particle-size control section. Linder soils contain more than 2 percent gravel in the lower part of series control section. Wesley soils contain more than 10 percent clay and less 80 percent sand in the lower part of the series control section.

GEOGRAPHIC SETTING: Plumbrook soils are on lake plains of Wisconsinan age. Slope ranges from 0 to 2 percent. The soils formed in loamy and sandy glaciofluvial deposits overlying silty lacustrine sediments. Mean annual precipitation ranges from 686 to 914 mm (27 to 36 inches). Mean annual air temperature ranges from 7 to 11 degrees C (45 to 52 degrees F).

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bixler, Elnora, Gilford, Kibbie, and Tuscola soils. Bixler and Kibbie soils have less sand in the lower part of the subsoil and are on similar landforms. The moderately well drained Tuscola and Elnora soils are on higher positions. The poorly drained or very poorly drained Gilford soils are in depressions.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat poorly drained. The depth to the top of an intermittent perched high water table ranges from 30 to 76 cm (1 to 2.5 feet) between December and May in normal years. The potential for surface runoff is negligible or very low. Saturated hydraulic conductivity is high in the loamy and sandy deposits, and moderately high in the underlying silty sediments. Permeability is moderately rapid in the loamy and sandy deposits, and moderately slow in the underlying silty sediments.

USE AND VEGETATION: Most areas are used for cultivated crops, primarily corn, soybeans, winter wheat, and specialty crops. Native vegetation is prairie grasslands or mixed oak forests.

DISTRIBUTION AND EXTENT: North central Ohio; MLRA 99. The series is of small extent, about 2,200 acres.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: AMHERST, MASSACHUSETTS

SERIES ESTABLISHED: Erie County, Ohio, 1998.

REMARKS: Diagnostic features recognized in this pedon are:
Mollic epipedon: from the surface to a depth of 28 cm (Ap horizon).
Cambic horizon: from a depth of 28 to 74 cm (Bg, Bw horizons).
Aquic conditions: redox features in all horizons below a depth of 28 cm.

Plumbrook soils were formerly identified as Darroch, coarse subsoil variant soils.

ADDITIONAL DATA: Characterization data (ER-45) for the typical pedon is available from The Ohio State University Soil Characterization Laboratory, Columbus, OH.

National Cooperative Soil Survey
U.S.A.