LOCATION WALLULA KSEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, active, mesic Typic Hapludolls
TYPICAL PEDON: Wallula silt loam, on a west facing 18 percent slope in a hay field. (Colors are for moist soils unless otherwise stated.)
A1--0 to 12 centimeters; very dark grayish brown (10YR 3/2) silt loam, grayish brown (10YR 5/2) dry; weak fine subangular blocky structure parting to weak fine granular structure; friable, soft, slightly sticky, slightly plastic; many fine and medium roots throughout and common coarse roots throughout; moderately acid; clear smooth boundary.
A2--12 to 28 centimeters; very dark grayish brown (10YR 3/2) silt loam; weak fine subangular blocky structure parting to weak fine granular structure; friable, soft, slightly sticky, slightly plastic; many fine and many medium roots throughout and common coarse roots throughout; moderately acid; gradual smooth boundary. (Combined A horizons are 20 to 35 centimeters thick)
BA-- 28 to 36 centimeters; brown (10YR 4/3) silty clay loam; weak fine subangular blocky structure; friable, slightly hard, moderately sticky, moderately plastic; many fine and common medium roots throughout and common coarse roots throughout; few flat angular indurated 2 to 150 millimeter limestone fragments; moderately acid; clear smooth boundary. (7 to 15 centimeters thick)
2Bw1--36 to 49 centimeters; light olive brown (2.5Y 5/4) silty clay loam; weak fine subangular blocky structure; firm, slightly hard, moderately sticky, moderately plastic; many fine and common medium roots throughout and common coarse roots throughout; common fine faint yellowish brown (10YR 5/4), moist, masses of oxidized iron throughout; strongly acid; clear smooth boundary.
2Bw2--49 to 59 centimeters; light brownish gray (2.5Y 6/2), silty clay; moderate medium subangular blocky structure; firm, hard, moderately sticky, moderately plastic; common fine and coarse roots throughout; many fine prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron throughout; strongly acid; clear smooth boundary. (Combined Bw horizons are 20 to 40 centimeters thick)
2BC--59 to 75 centimeters; light brownish gray (2.5Y 6/2), silty clay; moderate medium subangular blocky structure; firm, hard, moderately sticky, moderately plastic; common fine and coarse roots throughout; many fine prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron throughout; strongly acid; clear smooth boundary. (15 to 25 centimeters thick)
2C1--75 to 110 centimeters; gray (5Y 5/1), very channery silty clay loam; massive; firm, slightly hard, moderately sticky, moderately plastic; many fine roots throughout and common medium and coarse roots throughout; many medium prominent yellowish brown (10YR 5/4), moist, masses of oxidized iron throughout; 50 percent flat subrounded moderately cemented 2 to 150 millimeter shale parafragments; moderately acid; clear smooth boundary.
2C2--110 to 150 centimeters; gray (5Y 5/1), very channery silty clay loam; massive; firm, slightly hard, moderately sticky, moderately plastic; common fine and coarse roots throughout; many medium distinct dark yellowish brown (10YR 4/4), moist, masses of oxidized iron throughout; 70 percent flat subrounded moderately cemented 2 to 150 millimeter shale parafragments; neutral; clear smooth boundary.
2Cr--150 to 180 centimeters; gray (5Y 5/1), silty shale; many medium distinct dark yellowish brown (10YR 4/4), moist, masses of oxidized iron throughout.
TYPE LOCATION: Leavenworth County, Kansas; Approximately 6 kilometers south and 3.2 kilometers east of Easton; about 366 meters south and 90 meters west of the northeast corner of sec. 5, T. 9 S., R. 21 E.; USGS Easton, Kansas quadrangle; latitude 39 degrees 18 minutes 0.0 seconds N. and longitude 95 degrees 5 minutes 18.5 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
The soil moisture control section is not dry in any part for as long as 90 cumulative days in normal years; udic moisture regime.
Depth to episaturation: 27 to 90 centimeters
Thickness of the mollic epipedon: 25 to 50 centimeters.
Depth to discontinuity: 27 to 50 centimeters.
Clay content in the particle-size control section: 18 to 35 percent
Sand content in the particle-size control section: 3 to 23 percent
Redoximorphic features: 27 to 150 cm.
Rock and pararock fragments volume of 0 to 14 percent occurs in the horizons above the 2C2.
Depth to a paralithic contact with shale ranges from 100 to 150 centimeters.
The solum ranges from strongly acid to neutral.
A horizon:
Hue: 10YR
Value: 4 or 5 dry, 2 or 3 moist
Chroma: 1 to 3 dry or moist
Texture: silt loam, silty clay loam or clay loam
Clay content: 20 to 32 percent
Sand content: 7 to 30 percent
Reaction: moderately to slightly acid
BA horizon (when present):
Hue: 10YR
Value: 3 or 4 dry or moist
Chroma: 1 to 3 dry or moist
Texture: silty clay loam or clay loam
Clay content: 27 to 34 percent
Sand content: 5 to 23 percent
Reaction: moderately to slightly acid
2Bw horizon:
Hue: 10YR or 2.5Y
Value: 4 to 6 dry or moist
Chroma: 2 to 4 dry or moist
Texture: silty clay loam or clay loam
Clay content: 27 to 34 percent
Sand content: less than 15 percent
Reaction: strongly to slightly acid
2BC horizon:
Hue: 2.5Y or 5Y
Value: 5 or 6 dry or moist
Chroma: 1 or 2 dry or moist
Texture: silty clay loam or clay loam
Clay content: 27 to 34 percent
Sand content: less than 10 percent
Reaction: strongly to slightly acid
2C horizon:
Hue: 2.5Y or 5Y
Value: 5 or 6 dry or moist
Chroma: 1 or 2 dry or moist
Texture: channery silty clay loam, channery clay loam, very channery silty clay loam or very channery clay loam
Clay content: 27 to 34 percent
Sand content: less than 6 percent
Reaction: moderately acid to neutral
Shale pararock fragments; 20 to 70 percent channers
2Cr horizon:
Hue: 2.5Y or 5Y
Value: 5 or 6 dry or moist
Chroma: 1 or 2 dry or moist
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING:
Parent material: residuum weathered from fine-grained sandstone over noncalcareous silty shale
Landform: side slopes of uplands
Slopes: 8 to 30 percent
Mean annual air temperature: 11 to 13 degrees C .
Mean annual precipitation: 86 to 102 centimeters.
Frost-free period: 170 to 190 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Bendena,
Elmont,
Grundy,
Martin,
Rosendale,
Sharpsburg, and
Vinland soils.
The Bendena soils are slightly higher on the landscape and clayey and are shallow to bedrock.
The Elmont soils are on lower landscape positions and have an argillic horizon.
The Martin soils are on lower landscape positions and have a clayey argillic horizon.
The Rosendale soils are found on similar slopes and have more clay in the profile.
The Sharpsburg soils are on higher landscape positions and have an argillic horizon.
The Vinland soils are somewhat higher on the landscape and are shallow to bedrock.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: moderately well.
Runoff: medium to high.
Saturated hydraulic conductivity: moderately high.
USE AND VEGETATION: Most areas of Wallula soils are in pasture although some maybe in wooded areas. Pastures may be of tame or native grasses. Native vegetation is tall grass prairie grasses and in some areas it has scattered oak and hickory trees.
DISTRIBUTION AND EXTENT: LRR M, MLRA 106, 107B. Northeastern Kansas. This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES PROPOSED: Leavenworth County, Kansas, Stranger Creek Watershed Project, Kansas; 2007.
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 25 to 100 centimeters.
Mollic epipedon: The zone from 0 to 28 centimeters (A1 and A2 horizon)
Cambic horizon: The zone from 36 to 59 centimeters (2Bw1 and 2Bw2 horizon)
Redoximorphic features: In the zone from 36 to 150 centimeters (2Bw1, 2Bw2, 2BC, 2C1, and 2C2)
Paralithic contact: 100 to 150 centimeters;
Taxonomic Version: Tenth Edition, 2006.
ADDITIONAL DATA: Data from National Soil Survey Laboratory, Lincoln, Nebraska pedon 06KS103108. Additional laboratory data-- Kansas State Lab, Manhattan, Kansas pedon: 07KS087023.