LOCATION DILLHUT            KS 

DILLHUT SERIES

The Dillhut series consists of very deep, moderately well drained, moderately permeable soils that formed in sandy eolian deposits over a buried alluvial soil. These soils are on dunes on paleo-terraces in river valleys of the Great Bend Sand Plains (MLRA 79). Mean annual precipitation is 29 inches (74 centimeters), and mean annual temperature is 56 degrees F (13 degrees C) . Slope ranges from 0 to 7 percent.

TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, nonacid, mesic Oxyaquic Ustorthents

TYPICAL PEDON: Dillhut fine sand in rangeland. (Colors are for dry soil unless otherwise stated.)

A--0 to 4 inches (0 to 10 centimeters); light brownish gray (10YR 6/2), interior, fine sand, dark grayish brown (10YR 4/2), interior, moist; weak fine subangular blocky structure parting to single grain; loose, loose, nonsticky and nonplastic; common very fine and fine roots throughout; 2 percent clay; moderately acid; clear smooth boundary.

AC--4 to 9 inches (10 to 23 centimeters); brown (10YR 5/3), interior, fine sand, brown (10YR 4/3), interior, moist; weak fine subangular blocky structure parting to single grain; loose, loose, nonsticky and nonplastic; common very fine and fine roots throughout; 1 percent clay; moderately acid; gradual smooth boundary. (combined thickness ranges from 4 to 17 inches thick; 10 to 43 centimeters thick)

C1--9 to 18 inches (23 to 46 centimeters); light yellowish brown (10YR 6/4), interior, fine sand, yellowish brown (10YR 5/4), interior, moist; single grain; loose,loose, nonsticky and nonplastic; common very fine and fine roots throughout; 1 percent clay; moderately acid; gradual wavy boundary.

C2--18 to 26 inches (46 to 66 centimeters); light yellowish brown (10YR 6/4), interior, fine sand, yellowish brown (10YR 5/4), interior, moist; common fine distinct yellowish brown (10YR 5/6) moist irregular mottles throughout; single grain; loose, loose, nonsticky and nonplastic; common very fine roots throughout; 2 percent clay; moderately acid; abrupt smooth boundary. (combined thickness ranges from 6 to 32 inches thick; 15 to 81 centimeters thick)

2Btb1--26 to 41 inches (66 to 104 centimeters); light brown (7.5YR 6/4), interior, fine sandy loam, brown (7.5YR 5/4), interior, moist; common medium and coarse distinct strong brown (7.5YR 5/6) moist irregular mottles throughout; weak medium prismatic structure parting to weak fine and medium subangular blocky; slightly hard, firm, slightly sticky and slightly plastic; 14 percent clay; few distinct discontinuous clay bridging between sand grains and few distinct patchy pale brown (10YR 6/3), moist, skeletans on vertical faces of peds; few fine irregular masses of iron-manganese accumulation throughout; neutral; gradual smooth boundary.

2Btb2--41 to 55 inches (104 to 140 centimeters); light brown (7.5YR 6/4), interior, fine sandy loam, brown (7.5YR 5/4), interior, moist; many medium and coarse distinct strong brown (7.5YR 5/6) moist irregular mottles throughout; weak medium prismatic structure parting to weak fine and medium subangular blocky; slightly hard, friable, slightly sticky and slightly plastic; 11 percent clay; few distinct discontinuous clay bridging between sand grains and common distinct continuous pale brown (10YR 6/3), moist, skeletans on vertical faces of peds; few medium cylindrical masses of iron-manganese accumulation throughout; neutral; gradual smooth boundary. (combined thickness ranges from 19 to 60 inches thick; 48 to 152 centimeters thick)

2BCb1--55 to 65 inches (140 to 165 centimeters); light brown (7.5YR 6/3), interior, fine sandy loam, brown (7.5YR 5/3), interior, moist; many coarse distinct strong brown (7.5YR 5/6) moist irregular mottles throughout; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and nonplastic; 10 percent clay; common prominent continuous light brownish gray (10YR 6/2), moist, skeletans on vertical faces of peds; neutral; gradual smooth boundary.

2BCb2--65 to 70 inches (165 to 178 centimeters); light brown (7.5YR 6/3), interior, fine sandy loam, brown (7.5YR 5/3), interior, moist; many medium and coarse distinct strong brown (7.5YR 5/6) moist irregular mottles throughout; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and nonplastic; 18 percent clay; common prominent continuous light brownish gray (10YR 6/2) skeletans on vertical faces of peds; neutral; gradual smooth boundary. (combined thickness ranges from 0 to 36 inches thick; 0 to 91 centimeters thick)

2Cg--70 to 80 inches (178 to 203 centimeters); light gray (2.5Y 7/2), interior, fine sandy loam, light brownish gray (2.5Y 6/2), interior, moist; common coarse prominent yellowish brown (10YR 5/6) moist irregular mottles throughout; single grain; loose, loose, nonsticky and nonplastic; 9 percent clay; slightly acid. (thickness ranges from 0 to 20 inches; 0 to 50 centimeters thick)

TYPE LOCATION: Reno County, Kansas; 5 miles (8 kilometers) south of Buhler, Kansas; 961 feet (293 meters) west and 1836 feet (560 meters) south of the northeast corner of sec. 08, T. 23 S., R. 04 W. (USGS Hutchinson SE topographic quadrangle; lat. 38 degrees 4 minutes 1.4 seconds N. and long. 97 degrees 46 minutes 41.6 seconds W.)

RANGE IN CHARACTERISTICS:
Soil moisture regime: Ustic moisture regime bordering on Udic
Soil temperature regime: mesic
Mean annual soil temperature: 56 to 58 degrees F (13 to 14 degrees C)
Particle-size control section: 1 to 30 percent clay
Depth to bedrock: greater than 80 inches (203 centimeters)
Depth to secondary calcium carbonate: 40 to 80 inches (102 to 203 centimeters)
Thickness of the ochric epipedon: 4 to 17 inches (10 to 43 centimeters)

A horizon:
Hue: 10YR
Value: 4 to 6 (dry) 3 to 5 (moist)
Chroma: 2 or 3
Texture: fine sand
Reaction: moderately acid or slightly acid

C horizon:
Hue: 10YR
Value: 5 to 7 (dry) 4 to 6 (moist)
Chroma: 3 or 4
Texture: fine sand or loamy fine sand
Redoximorphic features: 1 to 15 percent
Reaction: moderately acid or slightly acid

2Btb horizon:
Hue: 7.5YR to 2.5Y
Value: 5 to 7 (dry) 4 to 6 (moist)
Chroma: 2 to 4
Texture: sandy clay loam, or fine sandy loam
Redoximorphic features: 1 to 40 percent
Reaction: neutral or slightly alkaline

2BCb horizon:
Hue: 7.5YR to 2.5Y
Value: 5 to 7 (dry) 4 to 6 (moist)
Chroma: 2 to 4
Texture: fine sandy loam
Redoximorphic features: 2 to 25 percent
Reaction: slightly acid or neutral

2C horizon:
Hue: 7.5YR to 2.5Y
Value: 5 to 7 (dry) 4 to 6 (moist)
Chroma: 2 to 4
Texture: fine sandy loam, loamy fine sand, or fine sand
Redoximorphic features: 1 to 20 percent
Reaction: slightly acid or neutral

COMPETING SERIES: There are no competing series.

GEOGRAPHIC SETTING: Dillhut soils

Parent material: sandy eolian deposits over buried alluvial soil
Landform: dunes on paleoterraces
Slopes: 0 to 7 percent
Elevation: 1479 to 1780 feet (450.8 to 542.5 meters)
Mean annual air temperature: 55 to 57 degrees F (13 to 14 degrees C)
Mean annual precipitation: 24 to 35 inches (61 to 89 centimeters)
Wettest months: Mar. - Oct.
Driest months: Nov. - Feb.
Frost-free period: 187 to 225 days

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Carway , Dillwyn, Langdon , Plev , Solvay , Tivin and Warnut soils. The wetter, Carway and Warnut soils are fine-loamy and are in nearby depressions. Dillwyn and Tivin soils do not have a buried soil. The somewhat excessively well drained Langdon soils do not have a buried soil and have fewer thinner lamellae. Langdon and Tivin soils are on steeper, more rolling dunes. Plev soils are wetter and poorly drained and occur in depressions. Solvay soils are somewhat poorly drained and are fine-loamy and occur in interdunes.

DRAINAGE AND PERMEABILITY: Moderately well drained. Runoff is very low or low. Permeability is moderate. The lower part of the profile has very slow permeability. A perched water table is present in the slow permeability phase with a upper limit ranging from 18 to 26 inches (46 to 66 centimeters) and a lower limit ranging from 48 to 60 (122 to 152 centimeters) inches from February through May in most years.

USE AND VEGETATION: Most areas are in native range. Native vegetation is dominated by sand bluestem, indiangrass, and little bluestem.

DISTRIBUTION AND EXTENT: South-Central Kansas. LRR H Great Plains Winter Wheat and Range, MLRA 79 Great Bend Sand Plains. The series is of small extent.

MLRA OFFICE RESPONSIBLE: Salina, Kansas

SERIES ESTABLISHED: Reno County, Kansas, 1999.

REMARKS: Diagnostic horizons and features recognized in this pedon are:

ochric epipedon: The zone from 0 to 4 inches (0 to 10 centimeters) (A)

Keys to Soil Taxonomy: Eighth edition, 1998

ADDITIONAL DATA: Most of this soil was formerly mapped as Dillwyn.
Series Interpretation Record: KS0326, KS0327 slow permeability.
LRR=H
04/14/95 This is a new series developed for the Great Bend Sand Plains. It is a Dillwyn overlying a buried paleosol. The paleosol has
a wide range in textures due to the alluvial nature. The ranges On the SIRs are the narrowest ranges possible.PRF-JCW

05/02/95 Added textures and clay contents to the 2Btb for the slow perm phase.Corrected the SIR #327 to reflect 35 to 43 percent clay content. PRF

12/10/99 Established the series.