PEDON DESCRIPTION

Print Date: Apr 23 2024	Country:
Description Date: Jul 23 2007	State: Alaska
Describer:	County: Yukon-Koyukuk Census Area
Site ID: S2006AK002018	MLRA: 231 -- Interior Alaska Highlands
Soil Survey Area:
Pedon ID: S2006AK002018	Map Unit:
Quad Name:
Lab Source ID: SSL	Std Latitude: 65.3672256
Lab Pedon #: 07N0176	Std Longitude: -146.5922241
User Transect ID:
Soil Name as Described/Sampled: Typic Cryofluvents
Classification:
Soil Name as Correlated:
Classification:
Pedon Type:
Pedon Purpose: full pedon description
Taxon Kind:
Associated Soils:
Physiographic Division:	Primary Earth Cover:
Physiographic Province:	Secondary Earth Cover:
Physiographic Section:	Vegetation:
State Physiographic Area:	Parent Material:
Local Physiographic Area:	Bedrock Kind:
Geomorphic Setting: stream terrace	Bedrock Depth:
Upslope Shape: convex	Bedrock Hardness:
Cross Slope Shape: linear	Bedrock Fracture Interval:
Particle Size Control Section:	Surface Fragments:
Description origin: PedonPC	Description database: KSSL

Diagnostic Features:

ochric epipedon 5 to 22 cm.
abrupt textural change 47 to 152 cm.

Cont. Site ID: S2006AK002018 Pedon ID: S2006AK002018

Slope (%) Elevation (meters) Aspect (deg) MAAT (C) MSAT (C) MWAT (C) MAP (mm) Frost-Free Days Drainage Class Slope Length (meters) Upslope Length (meters)

2.0
260

Oe/C--0 to 5 centimeters (0.0 to 2.0 inches); 80 percent black (10YR 2/1) and 20 percent brown (10YR 4/3) silt loam, moderately decomposed plant material; nonsticky, nonplastic; many very fine and fine roots and many medium roots and common coarse roots; 0 percent nonflat 2 to 76-millimeter unspecified fragments and 0 percent nonflat 76 to 250-millimeter unspecified fragments and 0 percent nonflat 250 to 600-millimeter unspecified fragments and 0 percent flat angular 2 to 150-millimeter unspecified fragments and 0 percent flat angular 150 to 380-millimeter unspecified fragments; noneffervescent; strongly acid, pH 5.5; clear irregular boundary. Lab sample # 07N01094

A/Oa--5 to 22 centimeters (2.0 to 8.7 inches); 85 percent dark brown (10YR 3/3) and 15 percent black (10YR 2/1) silt loam, highly decomposed plant material; weak medium granular structure; very friable, nonsticky, nonplastic; many very fine and fine roots and common medium roots and very few coarse roots; 0 percent nonflat 2 to 76-millimeter unspecified fragments and 0 percent nonflat 76 to 250-millimeter unspecified fragments and 0 percent nonflat 250 to 600-millimeter unspecified fragments and 0 percent flat angular 2 to 150-millimeter unspecified fragments and 0 percent flat angular 150 to 380-millimeter unspecified fragments; noneffervescent; strongly acid, pH 5.2; clear smooth boundary. Lab sample # 07N01095

C1--22 to 52 centimeters (8.7 to 20.5 inches); dark yellowish brown (10YR 4/4); massive; very friable, nonsticky, nonplastic; many very fine and fine roots and common medium roots and very few coarse roots; 0 percent nonflat 76 to 250-millimeter unspecified fragments and 0 percent nonflat 250 to 600-millimeter unspecified fragments and 0 percent flat angular 2 to 150-millimeter unspecified fragments and 0 percent flat angular 150 to 380-millimeter unspecified fragments and 2 percent nonflat 2 to 76-millimeter unspecified fragments; noneffervescent; strongly acid, pH 5.4; clear smooth boundary. Lab sample # 07N01096

2C2--52 to 88 centimeters (20.5 to 34.6 inches); dark yellowish brown (10YR 3/4) extremely gravelly coarse sand; single grain; loose, nonsticky, nonplastic; very few very fine and fine roots and very few medium roots and very few coarse roots; 0 percent nonflat 250 to 600-millimeter unspecified fragments and 0 percent flat angular 2 to 150-millimeter unspecified fragments and 0 percent flat angular 150 to 380-millimeter unspecified fragments and 15 percent nonflat 76 to 250-millimeter unspecified fragments and 60 percent nonflat 2 to 76-millimeter unspecified fragments; noneffervescent; strongly acid, pH 5.5; gradual smooth boundary. Lab sample # 07N01097

2C3--88 to 152 centimeters (34.6 to 59.8 inches); dark yellowish brown (10YR 3/6) extremely cobbly sand; single grain; loose, nonsticky, nonplastic; very few very fine and fine roots and very few medium roots and very few coarse roots; 0 percent nonflat 250 to 600-millimeter unspecified fragments and 0 percent flat angular 2 to 150-millimeter unspecified fragments and 0 percent flat angular 150 to 380-millimeter unspecified fragments and 35 percent nonflat 2 to 76-millimeter unspecified fragments and 35 percent nonflat 76 to 250-millimeter unspecified fragments; noneffervescent; strongly acid, pH 5.3. Lab sample # 07N01098

Slope (%)	Elevation (meters)	Aspect (deg)	MAAT (C)	MSAT (C)	MWAT (C)	MAP (mm)	Frost-Free Days	Drainage Class	Slope Length (meters)	Upslope Length (meters)
2.0		260