Doug Van Patten
Soil Subgroup Descriptions
TYPIC CRYOFLUVENTS, by Douglas J Van Patten
SIMILAR SOILS: Oxyaquic Cryofluvents
Depth class: very deep
Drainage class: well
Parent material: alluvium
Landform: floodplain terrace
Slopes: 0 to 2 percent
Mean annual precipitation: 68 inches
Mean annual temperature: 40 degrees F
TAXONOMIC CLASS: Coarse-loamy, mixed, Typic Cryofluvents
TYPICAL PEDON: Typic Cryofluvents silt loam - on a slope of 1 percent
Oe--0 to 2 inches; dark reddish brown (5YR 3/2) moderately decomposed plant material; many very fine, fine, and medium roots, few coarse roots; abrupt smooth boundary.
C1--2 to 50 inches; very dark gray (5Y 3/1) and very dark grayish brown (2.5Y 3/2) stratified loamy fine sand and silt loam; loamy fine sand is single grain, silt loam is massive; loamy fine sand is loose, silt loam is very friable, nonsticky and nonplastic; many very fine, fine, and coarse roots to 6 inches, common very fine, fine, medium, and coarse roots to 18 inches; strongly acid (pH 5.2); abrupt smooth boundary.
C2--50 to 52 inches; very dark gray (N3/0) very gravelly loamy sand; single grain; loose nonsticky, nonplastic; few very fine roots; medium acid (pH 5.8)
016) About 11 miles NNE of
REMARKS: Diagnostic features and horizons in this profile include:
Assumed irregular decrease in organic carbon between 10 and 50 inches.
Redoximorphic features in silt loam layers starting at 34 inches.
 Oxyaquic Cryofluvents are saturated with water within 40 inches of the mineral soil surface for 20 or more consecutive days or 30 cumulative days
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22 January 2007 14:11