LOCATION LEROY WI
Established Series
Rev. HFG-AAC
01/2011
LEROY SERIES
The LeRoy series consists of very deep, well drained soils formed in a thin mantle of loess and in the underlying highly calcareous loamy till on moraines. Slope ranges from 2 to 30 percent. Mean annual precipitation is about 762 mm (30 inches). Mean annual air temperature is about 8.9 degrees C (48 F).
TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Typic Hapludalfs
TYPICAL PEDON: LeRoy silt loam - on an 5 percent slope in a cultivated field at an elevation of about 310 meters (1,015 feet) above mean sea level. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 23 cm (0 to 9 inches); dark grayish brown (10YR 4/2) silt loam, light brownish gray (10YR 6/2) dry; moderate fine and medium granular structure; friable; neutral; abrupt smooth boundary. [13 to 25 cm (5 to 10 inches) thick]
Bt1--23 to 36 cm (9 to 14 inches); brown (10YR 4/3) silty clay loam; moderate fine and medium subangular blocky structure; firm; few faint clay films on faces of peds; strongly acid; gradual smooth boundary.
Bt2--36 to 48 cm (14 to 19 inches); brown (10YR 4/3) silty clay loam; strong medium subangular blocky structure; few very dark brown (10YR 2/2) organo-clay films on faces of peds; few fine chert fragments near the lower horizon boundary; strongly acid; clear wavy boundary. [Combined thickness of the Bt horizons ranges from 10 to 25 cm (4 to 10 inches).]
2Bt3--48 to 56 cm (19 to 22 inches); brown (10YR 4/3) clay loam; weak coarse subangular blocky structure; firm; few distinct very dark brown (10YR 2/2) organo-clay films on faces of peds; many prominent coatings around decomposed limestone pebbles; about 5 percent limestone gravel; strongly effervescent; moderately alkaline; clear irregular boundary. [5 to 20 cm (2 to 8 inches) thick]
2C--56 to 152 cm (22 to 60 inches); brown (10YR 5/3) gravelly loam; massive, friable; about 25 percent limestone gravel; strongly effervescent; moderately alkaline.
TYPE LOCATION: Dodge County, Wisconsin; about 1 mile southwest of Le Roy; 1000 feet north and 200 feet east of the southwest corner of sec. 27, T. 13 N., R. 16 E. USGS Mayville Wisconsin topographic quadrangle; lat. 43 degrees 33 minutes 45 seconds N., and long. 88 degrees 34 minutes 49 seconds W., NAD 27.
RANGE IN CHARACTERISTICS:
Depth to the base of the argillic horizon: 31 to 61 cm (12 to 24 inches)
Thickness of the loess mantle: 25 to 51 cm (10 to 20 inches)
Depth to carbonates: 25 to 51 cm (10 to 20 inches)
Volume of gravel and channers: 2 to 12 percent in the 2Bt horizon; 12 to 60 percent in the 2C horizon
Volume of cobbles and flagstones: 0 to 1 percent in the 2Bt horizon; 1 to 8 percent in the 2C horizon
special features: Many of the fragments show weathering on the outer surfaces.
Reaction: strongly acid to slightly acid in the loess, neutral in the upper part, where the soil is limed; neutral to moderately alkaline in the 2Bt horizon; moderately alkaline in the 2C horizon
Calcium carbonate equivalent: 60 to 90 percent in the 2C horizon
Ap horizon:
Hue: 10YR
Value: 4
Chroma: 2 to 4
Texture: silt loam, but is silty clay loam in some severely eroded pedons.
A horizon [less than 13 cm (5 inches) thick]:
Hue: 10YR
Value: 2 or 3
Chroma: 2 or 3
Texture: silt loam
E horizon (where present):
Hue: 10YR
Value: 4 or 5
Chroma: 2 or 3
Texture: silt loam
BE horizon (where present):
Hue: 7.5YR or 10YR
Value: 2 to 5
Chroma: 3 or 4, value and chroma of 3 do not occur together.
Texture: silt loam
Bt horizon;
Hue: 7.5YR or 10YR
Value: 3 to 5
Chroma: 3 or 4, value and chroma of 3 do not occur together.
Texture: silt loam or silty clay loam.
2Bt horizon:
Hue: 7.5YR or 10YR
Value: 3 or 4
Chroma: 3 or 4, value and chroma of 3 do not occur together.
Texture: loam, sandy clay loam, or clay loam.
Other features:
Many pedons have a thin dark colored layer (Beta B) at the contact between the 2B and 2C horizons that results from the accumulation of organic matter contained in the illuviated material.
2C horizon;
Hue: 7.5YR or 10YR
Value: 4 to 6
Chroma: 3 or 4
Texture; loam or sandy loam or the gravelly or very gravelly analogues of these textures
Calcium carbonate equivalent: 60 to 90 percent
COMPETING SERIES: These are the
Amanda,
Belmont,
Belmore,
Chili,
Cliftycreek,
Crouse,
Gallman,
Greybrook,
Hickory,
High Gap,
Kanawha,
Kidder,
Kosciusko,
Lumberton,
Martinsville,
Military,
Ockley,
Princeton,
Relay,
Richardville,
Riddles,
Senachwine,
Skelton,
Strawn,
Turnersburg,
Wawaka,
Wawasee, and
Woodbine series. None of these soils have a calcium carbonate equivalent of 60 to 90 percent within the series control section.
GEOGRAPHIC SETTING: LeRoy soils are on moraines. Slope ranges from 2 to 30 percent. These soils formed in a thin mantle of loess and in the underlying highly calcareous loamy till. Mean annual precipitation ranges from 710 to 838 mm (28 to 33 inches). Mean annual air temperature ranges from 7.2 to 8.9 degrees C (45 to 48 degrees F).
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Lomira and St.
Charles soils and, in some places, the
Markesan soils. Lomira and St. Charles soils are on more gentle slopes in the LeRoy landscape where the silt mantle is thicker. Markesan soils are next to LeRoy soils where the ochric epipedons grade to mollic epipedon.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained. The potential for surface runoff ranges from low to high. Saturated hydraulic conductivity moderately high to high (4.23 to 14.11 micrometers per second). Permeability is moderate.
USE AND VEGETATION: Most areas of this soil are used for cropland. Common crops are corn, small grain, forage, and canning crops.Native vegetation is mainly deciduous forests composed mainly of oak and hickory.
DISTRIBUTION AND EXTENT: MLRAs 95A, and 95B in southeastern Wisconsin. This soil is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: Dodge County, Wisconsin, 1974.
REMARKS:
9/04 The location for the typical pedon given in this OSD did not fall in a map unit of LeRoy. The location given for this same pedon in the published survey of Dodge County places it in a B slope map unit of LeRoy. Therefore, the location from the published survey is used in this OSD and the slope is changed from 8 percent to 5 percent.
These soils formerly were included with the Miami series. Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - 0 to 23 cm (0 to 9 inches) (AP).
Argillic horizon - 23 to 56 cm (9 to 22 inches) (Bt1, Bt2, 2Bt3).
National Cooperative Soil Survey
U.S.A.