LOCATION JAMASH KSEstablished Series
The Jamash series consists of shallow, well drained soils that formed in residuum derived from Permian shale. Jamash soils are on pediments in River Valleys in the Central Rolling Red Prairies (MLRA 80A). Slopes range from 0 to 12 percent. Mean annual precipitation is about 74 centimeters (29 inches) and the mean annual temperature is about 15 degrees C. (59 degrees F.).
TAXONOMIC CLASS: Loamy, mixed, active, thermic, shallow Udorthentic Haplustolls
TYPICAL PEDON: Jamash clay loam on a west facing, 1 percent slope in cropland at an elevation of 1490 feet (454 meters). (Colors are for dry soil unless otherwise noted.) When described on 10/30/96 the soil was moist from 0 to 15 inches (0 to 38 centimeters).
Ap--0 to 10 centimeters (0 to 4 inches); brown (7.5YR 4/3), interior, clay loam, dark brown (7.5YR 3/3), interior, moist; weak fine subangular blocky structure; hard, firm, moderately sticky and moderately plastic; common very fine roots throughout; 32.0 percent clay; noneffervescent throughout (HCl, 1 normal); slightly alkaline; abrupt smooth boundary (10 to 20 centimeters (4 to 8 inches) thick)
Bw--10 to 28 centimeters (4 to 11 inches); reddish brown (5YR 4/3), interior, clay loam, dark reddish brown (5YR 3/3), interior, moist; moderate medium subangular blocky structure parting to weak medium angular blocky; very hard, very firm, very sticky and very plastic; common very fine roots throughout; 37.0 percent clay; common distinct continuous reddish brown (5YR 4/3), moist, clay films on vertical and horizontal faces of peds and few distinct discontinuous dark brown (7.5YR 3/2), moist, organic coats on faces of peds and in pores; very slightly effervescent throughout (HCl, 1 normal); 2 percent well rounded shale channers; moderately alkaline; clear wavy boundary. (13 to 30 centimeters (5 to 12 inches) thick)
BC--28 to 38 centimeters (11 to 15 inches); reddish brown (5YR 5/4), interior, silty clay loam, dark reddish brown (5YR 3/4), interior, moist; weak medium subangular blocky structure; 30 percent platy rock structure; extremely hard, extremely firm, moderately sticky and moderately plastic; few very fine roots throughout; 30.0 percent clay; slightly effervescent throughout (HCl, 1 normal); moderately alkaline; abrupt wavy boundary. (0 to 20 centimeters (0 to 8 inches) thick)
Cr1--38 to 71 centimeters (15 to 28 inches); reddish brown (2.5YR 5/3) weathered shale, dark reddish brown (2.5YR 3/3) moist; noneffervescent throughout (HCl, 1 normal); clear smooth boundary.
Cr2--71 to 203 centimeters (28 to 80 inches); 50 percent reddish brown (2.5YR 4/4) and 50 percent light greenish gray (5GY 7/1) weathered shale, 50 percent dark reddish brown (2.5YR 3/4) and 50 percent greenish gray (5GY 6/1) moist; noneffervescent throughout (HCl, 1 normal)
TYPE LOCATION: Reno County, KS; about 8 kilometers (5 miles) south of Yoder; located about 497 meters (1630 feet) north and 37 meters (120 feet) west of the southeast corner of sec. 28, T. 25 N., R. 5 W; Haven SE USGS quad; lat. 37 degrees 50 minutes 38.0 seconds N. and long. 97 degrees 52 minutes .6 seconds W.,
RANGE IN CHARACTERISTICS:
Soil moisture regime: ustic moisture regime bordering on udic
Soil temperature regime: thermic
Mean annual soil temperature: 58 to 60 degrees F (14 to 16 degrees C).
Particle-size control section: 35 to 45 percent clay
Depth to paralithic contact: 25 to 49 centimeters (10 to 19 inches)
Depth to secondary calcium carbonate: greater than 10 centimeters (4 inches)
Thickness of the mollic epipedon: 18 to 36 centimeters (7 to 14 inches)
Ap horizon:
Hue: 2.5YR to 7.5YR
Value: 4 or 5, 3 moist
Chroma: 2 or 3 dry and moist
Texture: silty clay loam and clay loam
Reaction: slightly acid to slightly alkaline
Bw horizon:
Hue: 2.5YR to 7.5YR
Value: 3 or 4 dry or moist
Chroma: 2 to 4 dry and moist
Texture: silty clay loam, clay loam or silty clay
Reaction: neutral to moderately alkaline
BC horizon:
Hue: 2.5YR or 5YR
Value: 3 to 5, 3 or 4 moist
Chroma: 3 or 4 dry and moist
Texture: silty clay loam or clay loam
Rock fragments: 0 to 35 percent by volume
Reaction: slightly alkaline or moderately alkaline
Cr horizon:
Hue: 2.5YR or 5GY
Value: 3 to 7 dry and moist
Chroma: 1 to 4 dry and moist
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING:
Parent material: Residuum derived from shale
Landform: Pediment in river valleys
Slopes: 0 to 12 percent
Elevation: 425 to 500 meters (1400 to 1650 feet)
Mean annual air temperature: 14 to 16 degrees C. (58 to 60 degrees F.)
Mean annual precipitation: 71 to 79 centimeters (28 to 31 inches)
Wettest months: March to October
Driest months: November to February
Frost-free period: 200 to 210 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Masham,
Piedmont,
Poxmash,
Renthin and
Zellmont series.
All of these soils occur on the same landscapes.
Masham soils do not have a mollic epipedon.
Piedmont and Zellmont soils are moderately deep.
Renthin and Poxmash soils are deep.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: well drained
Runoff: low to high
Saturated hydraulic conductivity: low
USE AND VEGETATION: most areas are cropland and native range.
Small grain and sorghum are the primary crops.
DISTRIBUTION AND EXTENT: South Central Kansas. LRR H Great Plains Winter Wheat and Range, MLRA 80A Central Rolling Red Prairies This series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Reno County, KS. 1996
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon: 0 to 38 centimeters (0 to 11 inches) (Ap, Bw)
Cr paralithic horizon: 38 to 71 centimeters (15 to 28 inches)
Keys to Soil Taxonomy: Eighth edition, 1998
ADDITIONAL DATA: The clay percentages are estimates.
Typical pedon site ID: 96KS155418R
DATE: 09/18/96 new series for MLRA 80A. The series is on the northern reach of MLRA 80A. It is of small extent. Area is basically mesic, but series is defined as cool thermic. prf
6/3/97:PRF: Incorporated comments from colorado and texas.
3/30/99:PRF: Established series for Reno county.
Modified format by LRM in 10/2005 to include metric conversion and change permeability to saturated hydraulic conductivity.