LOCATION GYMER KS-NEEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Typic Argiudolls
TYPICAL PEDON: Gymer silt loam, 3 to 8 percent slopes in pastureland. (Colors are for moist soil unless otherwise noted.)
Ap--0 to 25 centimeters; dark brown (7.5YR 3/2) silt loam, brown (7.5YR 4/2) moist; moderate medium granular blocky structure parting to weak fine granular; soft, very friable, slightly sticky and slightly plastic; many very fine and fine roots; common medium tubular pores; slightly acid; abrupt smooth boundary.
BA--25 to 36 centimeters; dark brown (7.5YR 3/3) silty clay loam, dark brown (7.5YR 3/4) moist; weak fine subangular blocky structure; slightly hard friable, sticky and plastic; common very fine and fine roots throughout; common medium tubular pores; moderately acid; clear smooth boundary.
Bt1--36 to 56 centimeters; reddish brown (5YR 4/4) silty clay loam, reddish brown (5YR 5/4) moist; moderate fine subangular blocky structure; slightly hard firm, sticky and plastic; common very fine and fine roots throughout; common very fine to medium tubular pores; common distinct continuous clay films throughout; moderately acid; clear smooth boundary.
Bt2--56 to 86 centimeters; yellowish red (5YR 4/6) silty clay loam, reddish brown (5YR 4/3) dry; common fine distinct yellowish red (5YR 4/6) moist; strong medium prismatic structure parting to moderate coarse subangular blocky; hard firm, sticky and plastic; many very fine roots throughout; many very fine and fine tubular pores; common faint continuous clay films throughout; few fine rounded black (N 2/0) soft masses of iron-manganese throughout; moderately acid; clear smooth boundary.
Bt3--86 to 114 centimeters; brown (7.5YR 4/4) silty clay loam, brown (7.5YR 5/4) moist; moderate medium subangular blocky structure; hard; very firm, sticky and plastic; common very fine and fine roots throughout; many very fine and fine tubular pores; common distinct continuous dark clay films throughout; slightly hard iron-manganese concretions throughout; moderately acid; clear smooth boundary.
Bt4--114 to 137 centimeters; yellowish red (5YR 4/6) silty clay loam, yellowish red (5YR 5/6) dry; common fine distinct dark reddish gray (2.5YR 3/1) moist; weak medium subangular blocky structure; hard firm, sticky and plastic; common very fine roots throughout; common very fine tubular pores; common distinct continuous dark reddish brown (2.5YR 3/4) clay films throughout and few distinct discontinuous black (N 2/0) manganese or iron-manganese stains throughout; common fine rounded black (N 2/0) soft masses of iron-manganese concretions throughout; moderately acid; clear smooth boundary.
BC--137 to 163 centimeters; yellowish red (5YR 5/6) silt loam, reddish yellow (5YR 6/6) dry; common fine distinct very dark gray (2.5Y 3/1) moist irregular redoximorphic depletions throughout; moderate fine prismatic structure parting to moderate fine subangular blocky; hard firm, very sticky and very plastic; common very fine roots throughout; common very fine tubular pores; common distinct discontinuous clay films throughout and very few distinct discontinuous black (N 2/0) manganese or iron-manganese stains throughout; few fine irregular black (N 2/0) slightly hard soft masses of iron-manganese concretions throughout; moderately acid; gradual wavy boundary.
C--163 to 203 centimeters; olive (5Y 4/3) silty clay loam, pale olive (5Y 6/4) moist; massive; slightly hard friable, lightly sticky and slightly plastic; common very fine roots; throughout; common very fine and fine tubular pores; few fine irregular black (N 2/0) iron-manganese concretions throughout; moderately acid.
TYPE LOCATION: Douglas County, Kansas; about 5 miles north and .5 mile east of Lawrence; 518 meters (1700 feet) south and 427 meters (1400 feet) west of the northeast corner of sec. 6, T. 12 S., R. 20 E.; USGS Midland quad; lat. 39 degrees 2 minutes 25
seconds N. and long. 95 degrees 13 minutes 43 seconds W.
RANGE IN CHARACTERISTICS:
Soil moisture: The soil moisture control section is 10 to 30 centimeters below the soil
surface; udic moisture regime.
Mollic epipedon ranges from 20 to 51 centimeters
Depth to argillic horizon: 25 to 38 centimeters
Particle-size control section (weighted average): 25 to 35 percent
Clay content: 29 to 31 percent
Sand content: 0 to 10 percent
A horizon:
Hue: 10YR, 7.5YR
Value: 2 or 3 moist; 4 or 5 dry
Chroma: 1 to 3
Texture: silt loam, silty clay loam
Clay content: 20 to 35 percent
Base saturation: 60 to 85 percent
Reaction: slightly acid to neutral
BA horizon:
Hue: 10YR, 7.5YR
Value: 2 or 3 moist; 4 or 5 dry
Chroma: 2 or 3
Texture: silty clay loam or silty loam
Clay content: 20 to 30 percent
Base saturation: 65 to 90 percent
Reaction: strongly acid to neutral
Bt horizon:
Hue: 7.5YR or 5YR
Value: 3 to 5 moist; 4 to 6 dry
Chroma: 2 to 6
Texture: silty clay loam and silt loam
Clay content: 25 to 35 percent
Base saturation: 70 to 90 percent
Reaction: strongly acid to neutral
BC horizon:
Hue: 7.5YR or 5YR
Value: 3 to 5 moist; 4 to 6 dry
Chroma: 2 to 6
Texture: loam, silty clay loam and silt loam
Clay content: 20 to 30 percent
Base saturation: 70 to 95 percent
Reaction: strongly acid to neutral
C horizon:
Hue: 7.5YR or 5YR
Value: 3 to 5 moist; 4 to 6 dry
Chroma: 2 to 6
Texture: loam, silty clay loam and silt loam
Clay content: 20 to 30 percent
Base saturation: 70 to 85 percent
Reaction: strongly acid to neutral
COMPETING SERIES: These are the
Ashdale,
Broadwell,
Dinsdale,
Douglas,
Elkhart,
Elmont,
Healing,
Lycurgus,
Malcolm,
Meadowbank,
Mendota,
Mickle,
Ogle,
Osco,
Parkway,
Plano,
Proctor,
Richwood,
Ripon,
Sibley,
Sidell,
Tama,
Tecumseh,
Toddville,
Wakenda, and
Waupecan.
Ashdale soils formed in thin loess and residuum.
Broadwell soils formed in loess over eolian sand.
Dinsdale, Mendota and Ogle soils have thinner sola and have carbonates within a depth
of 102 centimeters .
Douglas and Tecumseh soils formed in loess over loamy materials.
Elkhart, Osco, Sibley, and Tama soils formed in loess.
Elkhart soil formed in calcareous till.
Elmont soils are 102 to 152 centimeters to silty shale.
Healing soils annual precipitation is 114 centimeters.
Lycurgus soils formed in loamy sediments over loess on footslopes.
Malcolm soils formed in interglacial sediments of Aftonian age.
Meadowbank soils formed in loess over stratified loamy or sandy materials.
Mickle soils have seasonal saturation at a depth of 1 to 1.5 meters.
Parkway soils have a frost-free period of 150 to 180 days.
Plano soils have a frost-free period of 160 to 180 days.
Proctor and Waupecan soils formed in loess over loamy outwash.
Richwood soils annual precipitation is 66 to 89 centimeters.
Ripon soils have a lithic contact within 102 centimeters.Sibley soils have mollic
epipedons more than 61 centimeters thick.
Sidell soils have 61 to 102 centimeters of silty material and have underlying loam
glaciofluvial material and till.
Wakenda soils formed in loess.
Waupecan soils contain coarse fragments and have carbonates in the control section.
GEOGRAPHIC SETTING:
Parent material: Loveland age loess and silty alluvium
Landform: terrace
Slopes: 3 to 8 percent
Mean annual soil temperature: 11 to 13 degrees C. (52 to 55 degrees F.)
Mean annual precipitation: 86 to 102 centimeters
Precipitation pattern: udic
Frost-free period: 170 to 190 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Muscotah,
Reading
Sharpsburg, and
Shelby, series.
The Muscotah, and Reading, soils are on flood plains below Gymer soils.
Shelby soils are on backslopes above the Gymer soils.
Sharpsburg soils occur on terrace treads above the Gymer soils.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: Well drained
Runoff: slow or medium
Saturated hydraulic conductivity: moderately low
USE AND VEGETATION: Most of the acreage is cultivated. Corn, sorghum, soybeans,
wheat, and alfalfa are the principal crops.
The remainder is range or pasture.
Native vegetation is tall and mid-grasses.
DISTRIBUTION AND EXTENT: Northeastern Kansas; MLRA 106; moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Leavenworth and Wyandotte Counties, Kansas, 1973.
REMARKS: This soil was originally mapped as one soil on two different landscapes
(uplands and terraces) and derived from two different parent materials. The red color of
the soil was the only characteristic of these soils in common. During the MLRA update
Gymer is to be relegated to the terrace position along rivers and streams, while the Polo
series will replace the Gymer mapped on the upland. Pedon used is 94KS045001. Lab
data were run at the National Soil Survey Laboratory in Lincoln, Nebraska. Lab samples
were 94P6334S-94P6341S. The Gymer soil was reclassified from the fine to the fine-silty
family.
09/2008 GJJ Changed from fine to fine-silty, removed smectitic and added mixed,
superactive, added some metric conversions, removed English units, and some format
changes.
Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 36 to 86 centimeters . (Bt1, Bt2 horizons)
Mollic epipedon: The zone from 0 to 36 centimeters. (A, horizons)
Argillic horizon: The zone from 36 to 114 centimeters . (Bt1, Bt2, and Bt3 horizons)
ADDITIONAL DATA: National Soil Survey Laboratory, Lincoln, Nebraska.
Characterization data pedons: 94KS045002 and 94KS103001. The assignment of the
cation-exchange activity class is supported by lab sample(s) numbers 94P6336S -
94KS6338S.