LOCATION FALLEAF KSEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Mollic Hapludalfs
TYPICAL PEDON: Falleaf fine sandy loam, on a 5 percent, linear, south-facing slope in cropland. (Colors are for moist soil unless otherwise stated.)
A1--0 to 15 cm; dark brown (10YR 3/3), fine sandy loam; weak fine granular structure; friable, slightly hard, slightly sticky, slightly plastic; very strongly acid; clear smooth boundary.
A2--15 to 25 cm; brown (10YR 5/3), fine sandy loam; weak fine subangular blocky structure; friable, slightly hard, slightly sticky, slightly plastic; strongly acid; abrupt smooth boundary. (Combined A horizons are 18 to 90 centimeters thick)
2Bt1--25 to 38 cm; strong brown (7.5YR 4/6), clay loam; moderate medium prismatic parting to moderate fine subangular blocky structure; firm, hard, moderately sticky, moderately plastic; 15 percent discontinuous distinct clay films throughout; moderately acid; clear smooth boundary.
2Bt2--38 to 66 cm; reddish brown (5YR 4/4), clay loam; moderate medium prismatic parting to moderate medium subangular blocky structure; firm, hard, moderately sticky, moderately plastic; 20 percent continuous distinct dark brown (7.5YR 3/4), moist, clay films throughout; moderately acid; clear smooth boundary.
2Bt3--66 to 94 cm; yellowish red (5YR 4/6), clay loam; moderate medium prismatic parting to moderate medium subangular blocky structure; firm, hard, moderately sticky, moderately plastic; 30 percent continuous distinct brown (7.5YR 4/3), moist, clay films throughout; moderately acid; clear smooth boundary.
2Bt4--94 to 117 cm; yellowish red (5YR 5/6), clay loam; moderate medium prismatic parting to moderate medium subangular blocky structure; firm, hard, moderately sticky, moderately plastic; 10 percent discontinuous distinct clay films throughout; slightly acid; clear smooth boundary. (Combined Bt horizons are 20 to 110 centimeters thick)
2Bt5--117 to 157 cm; yellowish red (5YR 4/6), clay loam; moderate medium subangular blocky structure; firm, hard, moderately sticky, moderately plastic; 5 percent discontinuous faint clay films throughout; slightly acid; clear smooth boundary.
2BC--157 to 216 cm; brown (7.5YR 5/4), clay loam; moderate coarse subangular blocky structure; firm, hard, moderately sticky, moderately plastic, slightly acid. (BC horizon is 10 to 100 centimeters thick)
TYPE LOCATION: Jefferson County, Kansas; about 0.8 kilometers north and 1.6 kilometers west of Newman, Kansas; about 244 meters north and 716 meters west of the southeast corner of sec. 14, T. 11 S., R., 17 E. USGS Grantville, Kansas quadrangle lat. 39degrees 5 minutes and 22.15 second N and long. 95 degrees 29 minutes 30.48 seconds W, NAD83.
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.
Clay content in the particle-size control section (weighted average) 20 to 35 percent
Sand content in the particle-size control section (weighted average) 30 to 70 percent
A or Ap horizon:
Hue--10YR
Value-- 4 or 5 dry, 2 to 5 moist
Chroma--2 or 3 dry or moist
Texture--loamy sand, sandy loam, fine sandy loam or loam
Clay content--3 to 18 percent
Sand content-- 48 to 84 percent
Reaction-- very strongly acid to slightly acid
Some pedons may have a BA horizon.
E horizon (if present):
Hue-- 10YR
Value-- 3 to 5 dry or moist
Chroma-- 2 to 4 dry or moist
Textureloamy sand, sandy loam or loam
Clay content-- 2 to 10 percent
Sand content-- 48 to 84 percent
Reaction-- strongly acid to neutral
2Bt horizon:
Hue--5YR, 7.5YR or 10YR
Value-- 4 to 6 dry or moist
Chroma-- 3 to 6 dry or moist
Texture-- clay loam, or sandy clay loam, lesser extent loam
Clay content-- 20 to 35 percent
Sand content-- 30 to 70 percent
Reaction-- moderately acid to neutral
2BC horizon (if present):
Hue--5YR, 7.5YR, or 10YR
Value-- 4 to 6 dry or moist
Chroma-- 3 to 6 dry or moist
Texture--silty clay loam, loam or clay loam
Clay content-- 22 to 35 percent
Sand content-- 25 to 45 percent
Reaction-- moderately acid to neutral
2C or 3C horizon (if present):
Hue5YR, 7.5YR or 10YR
Value-- 4 to 7 dry or moist
Chroma-- 3 to 6 dry or moist
Texture-- silty clay loam, loam or clay loam
Clay content-- 16 to 35 percent
Sand content-- 20 to 45 percent
Reaction-- moderately acid to neutral
COMPETING SERIES:
These are
Angus,
Argyle,
Bassett,
Blooming,
Caleb,
Cortland,
Gara,
Koronis,
Lester,
Newcomer,
Orwood,
Racine,
Sebbo,
Taopi,
Waucoma,
Winneshiek soils
Angus have carbonates below 24 inches (61 centimeters).
Argyle can have up to 35 percent gravels in the 2Bt and 2BC horizon.
Bassett can have 1 to 12 percent gravels in the profile.
Blooming have carbonates below a depth of 90 centimeters have discontinuity with up to 10 percent coarse fragments below the silty or loamy sediments.
Caleb have carbonates greater than 200 centimeters.
Cortland have an argillic horizon with matrix hue of 7.5YR or redder.
Gara have a clay content of 32 to 35 percent in the particle-size control section.
Koronis have carbonates within a depth of 90 centimeters.
Lester have carbonates within a depth of 137 centimeters.
Newcomer have a paralithic contact with sandstone within a depth of 102 centimeters.
Orwood have a sand content of 15 to 45 percent in the particle-size control section.
Racine do not have a frequently saturated zone within a depth of 1.8 meters in normal years.
Sebbo have a perched water table at 107 to 183 centimeters.
Taopi have carbonates within a depth of 102 centimeters and have soft limestone or siltstone rock fragment content of 10 to 40 percent in the lower third of the series control section.
Waucoma have a lithic contact with limestone within a depth of 152 centimeters.
Winneshiek have a lithic contact with limestone within a depth of 102 centimeters.
GEOGRAPHIC SETTING:
Parent material: loamy eolian and glacial fluvial material over till
Landform: summits and back slopes on uplands
Slopes: 3 to 8 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
Grinter (T),
Morrill,
Olmitz, and
Sharpsburg soils.
Grinter soils do not have an argillic horizon and are on similar positions.
Morrill soils have mollic epipedon.
Olmitz soils have a cumulic horizon and are on footslopes.
Sharpsburg soils have a mollic epipedon and occur on summits of uplands.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: well
Runoff: low
Saturated hydraulic conductivity: moderately high
USE AND VEGETATION: Used for both growing cultivated crops and pasture. Principal crops grown are corn, soybeans, small grains, and hay. Native vegetation was tall prairie grasses.
DISTRIBUTION AND EXTENT: LRR M, MLRA 106, 107. 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, 2007.
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 25 to 75 centimeters (2Bt1, 2Bt2 and 2Bt3 horizons)
Ochric epipedon: The zone from 0 to 25 centimeters (A1 and A2 horizons)
Argillic horizon: The zone from 25 to 157 centimeters (2Bt1, 2Bt2, 2Bt3, 2Bt4, 2Bt5 horizons)
Taxonomic Version: Tenth Edition, 2006.
This series was set up to take the place of the Konawa soil that was mapped on the bluffs north of the Kansas River. The Falleaf series is expected to be found on the shoulder and side slope positions of interfluves adjacent to the Kansas River. It is normally mapped in an undifferentiated map unit with the Grinter series.
ADDITIONAL DATA: There is currently no NSSL data for the typical pedon. Additional laboratory data--Kansas pedon: 00KS177005.