LOCATION CENTERBURG              OH

Established Series
Rev. JAG-SJH
11/2021

CENTERBURG SERIES

The Centerburg series consists of very deep, moderately well drained soils formed in loamy till on till plains and moraines. Slope ranges from 2 to 12 percent. Mean annual precipitation is about 965 mm (38 inches), and mean annual air temperature is about 11 degrees C (52 degrees F).

TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Aquic Hapludalfs

TYPICAL PEDON: Centerburg silt loam, on a north-facing, convex, 3 percent slope in a cultivated field at an elevation of 320 meters (1,050 feet) above mean sea level. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 18 cm (0 to 7 inches); brown (10YR 4/3) silt loam, pale brown (10YR 6/3) dry; moderate medium granular structure; very friable; common fine roots; 2 percent rock fragments; moderately acid; abrupt smooth boundary. [15 to 30 cm (6 to 12 inches) thick]

Bt1--18 to 30 cm (7 to 12 inches); yellowish brown (10YR 5/4) silt loam; moderate fine subangular blocky structure; friable; few fine roots; few faint brown (10YR 5/3) clay films on faces of peds; few faint brown (10YR 5/3) clay depletions on faces of peds; 2 percent rock fragments; strongly acid; abrupt wavy boundary.

Bt2--30 to 41 cm (12 to 16 inches); yellowish brown (10YR 5/6) silty clay loam; moderate medium angular blocky structure; firm; few fine roots; common faint yellowish brown (10YR 5/4) clay films on faces of peds; common distinct yellowish brown (10YR 5/4) clay depletions on faces of peds; 4 percent rock fragments; very strongly acid; clear wavy boundary.

Bt3--41 to 58 cm (16 to 23 inches); yellowish brown (10YR 5/4) clay loam; moderate medium subangular blocky structure; firm; few fine roots; many faint yellowish brown (10YR 5/4) clay films on faces of peds; common fine distinct grayish brown (10YR 5/2) iron depletions; common fine distinct yellowish brown (10YR 5/6) masses of iron accumulation; common faint brown (10YR 5/3) clay depletions on faces of peds; 3 percent rock fragments; very strongly acid; clear wavy boundary.

Bt4--58 to 74 cm (23 to 29 inches); dark yellowish brown (10YR 4/4) clay loam; moderate coarse subangular blocky structure; firm; few fine roots; many faint dark yellowish brown (10YR 4/4) clay films on faces of peds; common medium distinct grayish brown (10YR 5/2) iron depletions; common medium distinct yellowish brown (10YR 5/6) masses of iron accumulation; 3 percent rock fragments; moderately acid; gradual wavy boundary. [Combined thickness of the Bt horizon is 33 to 96 cm (13 to 38 inches).]

BC--74 to 89 cm (29 to 35 inches); dark yellowish brown (10YR 4/4) clay loam; weak coarse subangular blocky structure; firm; few faint dark yellowish brown (10YR 4/4) clay films on faces of peds; common fine distinct grayish brown (10YR 5/2) iron depletions; common fine distinct yellowish brown (10YR 5/6) masses of iron accumulation; few fine distinct black (10YR 2/1) masses of iron and manganese accumulation; 2 percent rock fragments; slightly alkaline; clear wavy boundary. [0 to 38 cm (15 inches) thick]

C1--89 to 102 cm (35 to 40 inches); brown (10YR 4/3) loam; massive; firm; common fine and medium faint grayish brown (10YR 5/2) iron depletions; common fine and medium distinct yellowish brown (10YR 5/6) masses of iron accumulation; 8 percent rock fragments; few fine prominent very pale brown (10YR 8/2) limestone remnants; moderately alkaline; gradual wavy boundary.

C2--102 to 152 cm (40 to 60 inches); brown (10YR 4/3) loam; massive; firm; common medium distinct gray (10YR 5/1) and faint grayish brown (10YR 5/2) iron depletions; common medium distinct yellowish brown (10YR 5/6) masses of iron accumulation; 8 percent rock fragments; moderately alkaline.

TYPE LOCATION: Licking County, Ohio; about 1 mile north of Alexandria, in St. Albans Township; 1,890 yards south and 1,370 yards east of the northwest corner of quarter township 1, T. 2 N., R. 14 W.; USGS Granville, Ohio topographic quadrangle; lat. 40 degrees 06 minutes 10 seconds N. and long. 82 degrees 36 minutes 07 seconds W., NAD 27.

RANGE IN CHARACTERISTICS:
Depth to the base of the ochric epipedon: 15 to 30 cm (6 to 12 inches)
Depth to the base of the argillic horizon: 48 to 127 cm (19 to 50 inches)
Thickness of the solum and depth to carbonates: typically is 63 to 140 cm (25 to 55 inches), but ranges to 183 cm (72 inches)
Rock fragments: dominantly sandstone and shale of local origin with minor amounts of crystalline and limestone rocks
Particle-size control section: averages 26 to 35 percent clay
CEC to clay ratio: between 0.40 and 0.60 in all parts of the argillic horizon

Ap horizon:
Hue: 10YR
Value: 4 (6 or more dry), but ranges to 5 in eroded pedons
Chroma: 2 or 3, but ranges to 4 in eroded pedons
Texture: silt loam
Rock fragment content: 0 to 10 percent
Reaction: very strongly acid to neutral

A horizon, were present:
Thickness: 5 to 10 cm (2 to 4 inches thick)
Value: 3
Chroma: 1 or 2
Texture: silt loam
Rock fragment content: 0 to 10 percent
Reaction: very strongly acid to neutral

E horizon, where present:
Thickness: 5 to 20 cm (2 to 8 inches)
Hue: 10YR
Value: 5 or 6
Chroma: 3 or 4
Rock fragment content: 0 to 10 percent
Reaction: very strongly acid or strongly acid

Bt horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 3 to 6
Texture: clay loam, loam, silt loam, or silty clay loam but silt loam and silty clay loam are most common in the upper part
Rock fragment content: 0 to 10 percent in the upper part and 2 to 14 percent in the lower part
Reaction: very strongly acid to moderately acid in the upper part and strongly acid to neutral in the lower part

BC horizon, where present:
Hue: 10YR or 2.5Y
Value: 4 or 5
Chroma: 2 to 6
Texture: clay loam, loam, or silt loam
Rock fragment content: 2 to 14 percent
Reaction: moderately acid to slightly alkaline

C horizon:
Hue: 10YR or 2.5Y
Value: 4 or 5
Chroma: 2 to 4
Texture: loam or silt loam
Clay content: 15 to 25 percent
Rock fragment content: 3 to 14 percent
Calcium carbonate equivalent: 0 to 22 percent
Reaction: typically slightly alkaline or moderately alkaline, but is neutral in the upper part in some pedons

COMPETING SERIES: These are the Bogart, Cygnet, Haney, Houcktown, Jenera, Jugtown, Nicely, Reaville, Scattersville, Swampoodle, Thackery, Tuscola, Vanlue, and Williamstown series. Bogart soils have more than 14 percent rock fragments in the middle part of the series control section. Cygnet and Jenera soils have more than 25 percent clay in the lower part of the series control section. Haney and Thackery soils average more than 14 percent rock fragments in the lower part of the series control section. Houcktown soils have a densic contact within 152 cm (60 inches). Jugtown soils are more alkaline than moderately acid in the upper part of the argillic horizon. Nicely soils are deeper than 127 cm (50 inches) to the base of the argillic horizon. Reaville soils have a lithic contact within a depth of 152 cm (60 inches). Scattersville soils formed in mountain colluvium (solifluctate) from mixed basic and acidic rock materials. Swampoodle soils formed in local colluvium over residuum derived from greenstone schist, biotite schist, and basic gneiss. Tuscola soils are stratified in the lower part of the series control section. Vanlue soils have less than 2 percent rock fragments in the lower part of the argillic horizon. Williamstown soils have rock fragments of dominantly limestone and crystalline lithology.

GEOGRAPHIC SETTING: Centerburg soils are on till plains and moraines of Wisconsinan age. Slope ranges from 2 to 12 percent. The soils formed in loamy till. Climate is humid and temperate. Mean annual precipitation ranges from 914 to 991 mm (36 to 39 inches). Mean annual air temperature ranges from 10 to 12 degrees C (50 to 53 degrees F). Frost-free period is 145 to 160 days. Elevation is 305 to 396 meters (1,000 to 1,300 feet) above mean sea level.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Amanda, Bennington, Condit, and Pewamo soils that are in a toposequence with Centerburg soils, and the Loudonville and Mechanicsburg soils. The well drained Amanda soils are on higher knolls and ridges or on more sloping areas along drainageways. The somewhat poorly drained Bennington soils are on lower knolls and ridges or on less sloping areas along drainageways. The very poorly drained Condit soils are in depressions. The very poorly drained Pewamo soils have a mollic epipedon and are in depressions. The well drained Loudonville and Mechanicsburg soils are on nearby areas where the bedrock is less than 152 cm (60 inches) and are moderately deep and deep to bedrock, respectively.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Moderately well drained. The depth to the top of an intermittent perched high water table ranges from 30 to 61 cm (1 to 2 feet) between November and April in normal years. The potential for surface runoff is low or medium. Saturated hydraulic conductivity is moderately high. Permeability is moderate in the upper part of the solum and moderately slow in the lower part of the solum and in the substratum.

USE AND VEGETATION: Most areas of Centerburg soils are cultivated. Principal crops are corn, soybeans, small grain, and hay. Some areas are in pasture or in woodland. Native vegetation is deciduous hardwood forest.

DISTRIBUTION AND EXTENT: Central and north-central Ohio; mostly in MLRA 111E with lesser extent in MLRAs 111B and 139. The type location is in MLRA 111E. The series is of large extent.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: AMHERST, MASSACHUSETTS

SERIES ESTABLISHED: Knox County, Ohio, 1983.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: from the surface to a depth of 18 cm (Ap horizon).
Argillic horizon: from a depth of 18 to 74 cm (Bt horizon).
Aquic conditions: redox features present in all horizons below a depth of 41 cm.

ADDITIONAL DATA: Characterization data is available for LC-22, the typical pedon, and supporting data is available for LC-21 from the Soil Characterization Laboratory, at The Ohio State University, Columbus, OH.

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National Cooperative Soil Survey
U.S.A.