LOCATION KAPLA MNEstablished Series
TAXONOMIC CLASS: Coarse-loamy, isotic, nonacid, frigid Typic Humaquepts
TYPICAL PEDON: Kapla mucky peat on a flat under a black spruce stand on a glacial lake plain. (Colors are for moist soil unless otherwise stated.)
Oe-- 0 to 5 inches; very dark brown (10YR 2/2) mucky peat; massive, very friable, very strongly acid, clear smooth boundary. (2 to 7 inches thick).
A-- 5 to 12 inches; black (10YR 2/1) fine sandy loam, dark grayish brown (10YR 4/2) dry; weak fine subangular blocky structure; friable; strongly acid; clear smooth boundary. (3 to 8 inches thick)
Bg1-- 12 to 24 inches; dark grayish brown (2.5Y 4/2); fine sandy loam; weak medium subangular blocky structure; friable; common medium distinct dark yellowish brown (10YR 4/4) Fe concentrations and common medium distinct gray (5Y6/1) Fe depletions; strongly acid; gradual wavy boundary.
Bg2-- 24 to 37 inches; grayish brown (2.5Y 5/2); loamy fine sand with thin strata of fine sandy loam, loamy sand, and silt loam; weak medium subangular blocky structure; very friable; common medium distinct dark yellowish brown (10YR 4/4) Fe concentrations and common medium faint gray (5Y6/1) Fe depletions; moderately acid; gradual wavy boundary. ( Combined thickness of the Bg horizons is 15 to 40 inches.)
Cg-- 37 to 80 inches; gray (5Y 5/1); stratified loamy fine sand, fine sandy loam, loamy sand, and silt loam; very friable; common medium prominent dark yellowish brown (10YR 4/4) Fe concentrations and common medium faint gray (5Y6/1) Fe depletions; moderately acid.
TYPE LOCATION: St. Louis County, Minnesota; about 12 miles south of Kinney; 2500 feet south and 200 feet east of the northwest corner of Section 14, T. 56 N., R. 19 W. USGS Casco, Minnesota Quadrangle; latitude 47 degrees 20 minutes 05 seconds N., and longitude 92 degrees 43 minutes 30 seconds W., NAD 27.
RANGE IN CHARACTERISTICS: The series control section contains up to 3 percent rock fragments. The depth to carbonates is greater than 80 inches. The particle-size control section has less than 30 percent medium sand or coarser.
The O horizon has hue of 10YR and value and chroma of 2 or 3. Texture is mucky peat or muck.
The A horizon has hue of 10YR, value of 2 or 3 and chroma of 1 or 2. Texture is fine sandy loam, loamy fine sand, loamy very fine sand or very fine sandy loam. Reaction is very strongly acid to moderately acid.
The Bg horizon has hue of 2.5Y, 10YR or 5Y, value of 3 to 6 and chroma of 1 or 2. Texture is fine sandy loam, loamy very fine sand or very fine sandy loam. Thin strata ranging from sand to silt loam commonly occur in the lower part. Reaction is very strongly acid to moderately acid.
The Cg horizon has hue of 2.5Y, 10YR or 5Y, value of 3 to 6 and chroma of 1 or 2. It is typically stratified and textures include loamy fine sand, fine sandy loam, loamy very fine sand, very fine sandy loam or silt loam. It has distinct to prominent Fe concentrations. Concentrations are weakly to moderately cemented in some pedons. Reaction is very strongly acid to moderately acid.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: Kapla soils are on linear or concave surfaces of glacial lake plains and outwash plains. Slopes range from 0 to 1 percent. They formed in eolian and/or glaciolacustrine materials. Mean annual air temperature is 38 to 41 degrees F. Mean annual precipitation is 25 to 28 inches. The frost-free period is 95 to 125 days. Elevation above sea level is 1250 to 1400 feet.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Barber, Cathro, Rifle, Wabuse and Westoo soils. The poorly drained Wabuse, somewhat poorly drained Barber and moderately well drained Westoo soils form a hydrosequence with the Kapla soils. Cathro and Rifle soils are in slightly lower positions and formed in organic materials.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Very poorly drained. Runoff is negligible. Saturated hydraulic conductivity is moderate. Kapla soils have seasonal high saturation at the surface for some time from April through June and October through November in normal years.
USE AND VEGETATION: Most areas are in a mixed cover type of forest and alder and willow. Principal trees are balsam poplar, black ash, black spruce and tamarack. Native vegetation is deciduous shrubs or mixed coniferous and deciduous forests.
DISTRIBUTION AND EXTENT: Northeastern Minnesota, MLRA-88. Small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota.
SERIES ESTABLISHED: St. Louis County, Minnesota, 2005.
REMARKS: Diagnostic horizons and features recognized in this pedon are: Umbric epipedon - the zone from 0 to 12 inches (Oe and A horizons); Cambic horizon - the zone from 12 to 24 inches; Aquic suborder - based on 2 chroma matrix and Fe concentrations from the base of the A horizon to 80 inches.
ADDITIONAL DATA: