LOCATION RENNER SDEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Pachic Argiustolls
TYPICAL PEDON: Renner loam - on a northwest-facing plane slope of 4 percent under mixed hardwoods. When described the soil was moist throughout. (Colors are for dry soil unless otherwise stated.)
Oi--1/2 to 0 inch; very dark grayish brown (10YR 3/2) and dark grayish brown (10YR 4/2) unaltered and slightly decomposed forest litter. (0 to 1 inch thick)
A1--0 to 10 inches; dark gray (10YR 4/1) loam, black (10YR 2/1) moist; weak medium and fine granular structure; slightly hard, friable; slightly acid; gradual wavy boundary.
A2--10 to 18 inches; dark gray (10YR 4/1) loam, black (10YR 2/1) moist; weak medium subangular blocky structure parting to moderate fine granular; slightly hard, friable; few worm casts; slightly acid; gradual wavy boundary. (Combined thickness of the A horizons is 13 to 22 inches.)
Bt1--18 to 29 inches; dark gray (10YR 4/1) clay loam, black (10YR 2/1) crushing to very dark brown (10YR 2/2) moist; weak coarse prismatic structure parting to moderate medium and fine subangular blocky; hard, firm, slightly sticky and slightly plastic; few worm casts; shiny film on faces of peds; slightly acid; gradual wavy boundary.
Bt2--29 to 40 inches; dark grayish brown (2.5Y 4/2) clay loam, very dark grayish brown (2.5Y 3/2) crushing to olive brown (2.5Y 4/3) moist; few fine prominent yellowish brown (10YR 5/6) redox accumulations; moderate medium prismatic structure parting to moderate medium and fine subangular and angular blocky; hard, firm, sticky and plastic; few worm casts; few fine dark concretions (iron and manganese oxides); shiny film on faces of peds; slightly acid; gradual wavy boundary.
Bt3--40 to 46 inches; light olive brown (2.5Y 5/3) clay loam, olive brown (2.5Y 4/3) moist; few fine prominent yellowish brown (10YR 5/6) and very dark brown (10YR 2/2) redox accumulations; weak very coarse and coarse prismatic structure parting to weak coarse and medium subangular blocky and blocky; hard, firm, sticky and plastic; few fine dark concretions (iron and manganese oxides); neutral; clear wavy boundary. (Combined Bt horizon is 15 to 36 inches thick)
Bk--46 to 60 inches; light olive brown (2.5Y 5/3) clay loam, olive brown (2.5Y 4/3) moist; few fine distinct strong brown (7.5YR 5/6) and very dark brown (10YR 2/2) redox accumulations; weak very coarse and coarse subangular blocky structure; hard, firm, sticky and plastic; common fine and medium accumulations of calcium carbonate; few fine dark concretions (iron and manganese oxides); slight effervescence; slightly alkaline.
TYPE LOCATION: Lincoln County, South Dakota; about 5 1/2 miles south and 1/2 mile east of Canton; 1015 feet north and 150 feet east of the center of sec. 13, T. 97 N., R. 49 W.
RANGE IN CHARACTERISTICS: Depth to free calcium carbonate is 36 to 50 inches. The mollic epipedon ranges from 20 to 36 inches in thickness and includes the upper part of the Bt horizon.
The A horizon has hue of 10YR, value of 3 or 4 and 2 or 3 moist, and chroma of 1 or 2 dry or moist. It typically is loam, but is silt loam in some pedons. It is slightly acid or neutral.
The Bt1 and Bt2 horizons have hue of 10YR or 2.5Y, value of 3 to 5 and 2 to 4 moist, and chroma of 1 to 3. They are clay loam averaging between 30 and 35 percent clay. They are slightly acid or neutral. The Bt horizon typically has few faint to distinct mottles, but mottles are not in some pedons.
The Bt3 horizon has hue of 10YR or 2.5Y, value of 5 or 6 and 4 or 5 moist, and chroma of 2 or 3. It is neutral or slightly alkaline.
The Bk horizon has hue of 10YR or 2.5Y, value of 5 to 7 and 4 to 6 moist, and chroma of 2 or 3. Fine or medium accumulations and striations of calcium carbonate range from few to many. It is neutral or slightly alkaline. Some pedons have a C horizon.
COMPETING SERIES: These are the Albinas, Garrett, Haxtun, Jarita, Keya, Prosper, Sampson, Woodly and Woonsocket series. Albinas soils have free carbonate within a depth of 30 inches. Garrett soils contain more sand and have redder hue. Haxtun soils have sandy loam upper Bt horizon. Jarita soils have bedrock at depths of less than 40 inches. Keya soils do not have mottles above a depth of 40 inches and formed in loamy alluvium. Prosper soils have thinner surface layers and contain free carbonate within depths of 36 inches. Sampson soils have a high content of medium or coarse angular granitic sand. Woodly soils have fine sandy loam or sandy clay loam Bt horizons averaging less than 27 percent clay. Woonsocket soils contain more fine sand or coarser in the Bt horizon.
GEOGRAPHIC SETTING: Renner soils are on gentle to moderately steep foot slopes or are in nearly level or gently sloping upland drains. Slopes are plane and slightly concave with gradients ranging from 0 to 25 percent. Renner soils formed in glacial till or local alluvium from glacial till. The mean annual temperature ranges from 45 to 49 degrees F, and mean annual precipitation ranges from 20 to 26 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Crofton, Moody, and Nora soils on the higher lying loess covered uplands and the Shindler and Steinauer soils on nearby slopes. Crofton, Moody, and Nora soils formed in loess and do not have an argillic horizon. In addition, Crofton soils do not have a mollic epipedon. Shindler and Steinauer soils have a mollic epipedon less than 20 inches thick.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is low to high. Permeability is moderate in the solum and moderately slow in underlying material.
USE AND VEGETATION: Principally in permanent pasture, hayland, or woodland. Small areas are cropped with corn, soybeans, small grains, and alfalfa the principal crops. Native grasses are big bluestem, little bluestem, and green needlegrass. Principal native trees are bur oak, American elm, ash, basswood, ironwood, and cottonwood.
DISTRIBUTION AND EXTENT: Southeastern South Dakota. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Lincoln County, South Dakota, 1971.
REMARKS: Diagnostic horizons and features recognized in this pedon are: mollic epipedon - the zone from the surface of the soil to a depth of about 29 inches (A1, A2, and Bt1 horizons); argillic horizon - the zone from a depth of about 18 to 46 inches (Bt1, Bt2, and Bt3 horizons)