LOCATION SPELVIN KSEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Udic Haplustalfs
TYPICAL PEDON: Spelvin loamy sand in a cultivated field. (Colors are for dry soil unless otherwise stated.)
Ap--0 to 13 centimeters (0 to 5 inches); pale brown (10YR 6/3), interior, loamy sand, brown (10YR 4/3), interior, moist; weak fine subangular blocky structure parting to single grain; loose, loose, nonsticky and nonplastic; common very fine roots throughout; 1 percent subrounded mixed gravel; moderately acid; clear smooth boundary. (8 to 33 centimeters (3 to 13 inches) thick)
2Bt1--13 to 58 centimeters (5 to 23 inches); reddish brown (5YR 5/4), interior, sandy clay loam, reddish brown (5YR 4/4), interior, moist; moderate medium and coarse prismatic structure parting to moderate fine and medium subangular blocky; hard, firm, slightly sticky and slightly plastic; common very fine roots throughout; 25 percent clay; common distinct continuous brown (7.5YR 4/4), moist, clay films on vertical and horizontal faces of peds; 1 percent subrounded mixed gravel; slightly acid; clear smooth boundary.
2Bt2--58 to 86 centimeters (23 to 34 inches); light brown (7.5YR 6/4), interior, sandy loam, brown (7.5YR 5/4), interior, moist; weak medium prismatic structure parting to moderate medium subangular blocky; slightly hard, firm, slightly sticky and slightly plastic; few very fine roots throughout; 15 percent clay; few distinct discontinuous brown (7.5YR 4/4), moist, clay films on vertical faces of peds; 1 percent subrounded mixed gravel; slightly acid; gradual smooth boundary. (Combined thickness of the 2Bt1 and 2Bt2 ranges from 50 to 122 centimeters (20 to 48 inches) thick)
2Bt3--86 to 127 centimeters (34 to 50 inches); strong brown (7.5YR 5/6), interior, sandy loam, strong brown (7.5YR 4/6), interior, moist; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky and nonplastic; few very fine roots throughout; 15 percent clay; very few distinct patchy brown (7.5YR 5/4), moist, clay films on vertical faces of peds and few distinct discontinuous clay bridging between sand grains; slightly acid; gradual smooth boundary. (0 to 38 centimeters (0 to 15 inches) thick)
2BC--127 to 147 centimeters (50 to 58 inches); strong brown (7.5YR 5/6), interior, loamy sand, strong brown (7.5YR 4/6), interior, moist; weak medium subangular blocky structure parting to single grain; soft, very friable, nonsticky and nonplastic; 5 percent clay; neutral; gradual smooth boundary. (0 to 43 centimeters (0 to 17 inches) thick)
2C--147 to 203 centimeters (58 to 80 inches); yellow (10YR 7/6), interior, sand, brownish yellow (10YR 6/6), interior, moist; single grain; loose, loose, nonsticky and nonplastic; 1 percent clay; 1 percent subrounded mixed gravel; neutral. (0 to 97 centimeters (0 to 38 inches) thick)
TYPE LOCATION: Reno County, Kansas; 6.4 kilometers (4 miles) north of the town of Langdon ; 520 meters (1710) feet north and 30 meters (100 feet) east of the southwest corner of sec. 5, T. 25 S. R. 9 W.; ( USGS Plevna topographic quadrangle; lat. 37 degrees 53 minutes 55.6 seconds N. and long. 98 degrees 20 minutes 35.3 seconds W.)
RANGE IN CHARACTERISTICS:
Soil moisture regime: ustic moisture regime bordering on udic
Particle-size control section: 20 to 30 percent clay
Depth to bedrock: greater than 203 centimeters (80 inches)
Depth to secondary calcium carbonate: greater than 203 centimeters (80 inches)
Depth to loamy sand or coarser textures ranges from 102 to 152 centimeters (40 to 60 inches)
Thickness of the ochric epipedon: 7 to 33 centimeters (3 to 13 inches)
A horizon:
Hue: 10YR or 7.5YR
Value: 5 or 6, 4 or 5 moist
Chroma: 2 to 4
Texture: loamy sand, fine sand, sand, or loamy fine sand
Rock fragments: 0 to 1 percent
Reaction: strongly acid to neutral
2Bt1 and 2Bt2 horizon:
Hue: 10YR to 5YR
Value: 4 to 6, 3 to 5 moist
Chroma: 3 to 6
Texture: sandy clay loam, clay loam, sandy loam, or loam
Rock fragments: 0 to 10 percent
Reaction: strongly acid to neutral
2Bt3 horizon:
Hue: 10YR or 7.5YR
Value: 5 to 7, 4 to 6 moist
Chroma: 4 to 6
Texture: sandy loam
Rock fragments: 0 to 10 percent
Relict mottles: 0 to 10 percent
Reaction: strongly acid to neutral
2BC horizon:
Hue: 10YR or 7.5YR
Value: 5 to 7, 4 to 6 moist
Chroma: 4 to 6
Texture: loamy sand, sandy loam, stratified sandy loam and loamy sand, loamy coarse sand or coarse sandy loam
Rock fragments: 0 to 10 percent
Relict mottles: 0 to 5 percent
Reaction: strongly acid to neutral
2C horizon:
Hue: 10YR or 7.5YR
Value: 5 to 7, 4 to 6 moist
Chroma: 3 to 8
Texture: sand, coarse sand, loamy sand, stratified sand and coarse sand, or loamy coarse sand
Rock fragments: 0 to 14 percent
Relict Mottles: 0 to 5 percent
Reaction: strongly acid to neutral
COMPETING SERIES: These are the Nickerson and Zellmont series. Nickerson soils are moderately well drained and have a seasonally high water table. Zellmont soils are moderately deep to shale.
GEOGRAPHIC SETTING:
Parent material: eolian over alluvial sediments
Landform: interdunes on paleo-terraces
Slopes: 0 to 1 percent
Elevation: 500 to 600 meters (1640 to 2000 feet)
Wettest months: Mar.- Oct.
Driest months: Nov.- Feb.
Frost-free period: 187 to 225 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Hayes,
Langdon,
Solvay,
Tivin and
Turon series.
Hayes soils are well drained, coarse-loamy and on dunes, and have a buried soil at depths of 76 to 203 centimeters (30 to 80 inches). Langdon soils are somewhat excessively drained sandy soils on steep dunes. Tivin soils are somewhat excessively drained on dunes on paleo-terraces. Solvay soils are somewhat poorly drained, fine-loamy, in lower positions between dunes, and have a seasonal high water table. The well drained, sandy Turon soils are on dunes, and have a buried soil at depths of 102 to 203 centimeters (40 to 80 inches).
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: well drained
Runoff: very low
Saturated hydraulic conductivity: moderate ly high
USE AND VEGETATION: Most areas are used for cultivation. Wheat and grain sorghum are the principal crops. Some areas are used for pasture or range.
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 SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Reno County, Kansas
REMARKS: Diagnostic horizons and features recognized in this pedon are:
ochric epipedon: 0 to 13 centimeters (0 to 5 inches) (Ap)
argillic horizon: 13 to 127 centimeters (5 to 50 inches) (2Bt1, 2Bt2, 2Bt3)
Keys to Soil Taxonomy: Eighth edition, 1998
ADDITIONAL DATA: This soils were formerly mapped as the Shellabarger, Farnum, or Carwile series. Clay values are field estimates.
LRR=H
DATE: 05/12/95: New proposed series for what had been called "Shellabarger variant". TP siteid = 93KS155057. RMM, JCW 5/12/95
12/23/99: series established per Reno County final correlation.
Modified format by LRM in 2/2006 to include metric conversion and change permeability to saturated hydraulic conductivity.