Megapit Details - NEON Data

D19 DEJU Megapit Soils Description

PEDON DESCRIPTION

Print Date: Feb 18 2016	Country:
Description Date: Jul 30 2015	State: Alaska
Describer: J Paul	County: Southeast Fairbanks Census Area
Site ID: S2015AK240001	MLRA: 229 -- Interior Alaska Lowlands
Site Note:	Soil Survey Area: AK683 -- Fort Greely and Donnelly Training Area, Alaska
Pedon ID: S2015AK240001	Map Unit:
Pedon Note:	Quad Name:
Lab Source ID: KSSL	Std Latitude: 63.8797130
Lab Pedon #: 15N0739	Std Longitude: -145.4746630
User Transect ID:
Soil Name as Described/Sampled: SND
Classification: Coarse-loamy, mixed, superactive Typic Haplocryepts	Latitude:
Soil Name as Correlated:	Longitude:
Classification:	Datum: WGS84
Pedon Type:	UTM Zone:
Pedon Purpose:	UTM Easting:
Taxon Kind: taxon above family	UTM Northing:
Associated Soils:
Physiographic Division:	Primary Earth Cover:
Physiographic Province:	Secondary Earth Cover:
Physiographic Section:	Existing Vegetation:
State Physiographic Area:	Parent Material:
Local Physiographic Area:	Bedrock Kind:
Geomorphic Setting: upper alluvial fan	Bedrock Depth:
Upslope Shape: linear	Bedrock Hardness:
Cross Slope Shape: convex	Bedrock Fracture Interval:
Particle Size Control Section:	Surface Fragments:
Description origin: NASIS	Description database: KSSL

Diagnostic Features:

ochric epipedon 0 to 16 cm.
cambic horizon 16 to 40 cm.
lithologic discontinuity 125 to 300 cm.

Cont. Site ID: S2015AK240001

Pedon ID: S2015AK240001

Slope (%)	Elevation (meters)	Aspect (deg)	MAAT (C)	MSAT (C)	MWAT (C)	MAP (mm)	Frost-Free Days	Drainage Class	Slope Length (meters)	Upslope Length (meters)
3.0	505.0							well

Oe--0 to 5 centimeters (0.0 to 2.0 inches); black (10YR 2/1) broken face moderately decomposed plant material; very friable; common very fine roots and very few very coarse roots and common medium roots and common fine roots and common coarse roots; 0 percent unspecified fragments; noneffervescent, by HCl, 1 normal; clear wavy boundary. Lab sample # 15N03790

A--5 to 16 centimeters (2.0 to 6.3 inches); dark brown (7.5YR 3/3) broken face fine sandy loam; 60 percent sand; 38 percent silt; 2 percent clay; weak medium subangular blocky structure; very friable, nonsticky, nonplastic; common very fine roots and common very coarse roots and common medium roots and common fine roots and common coarse roots; 0 percent nonflat subrounded indurated 75 to 250-millimeter unspecified fragments and 0 percent nonflat subrounded indurated 250 to 600-millimeter unspecified fragments and 1 percent nonflat subrounded indurated 5 to 75-millimeter unspecified fragments and 4 percent nonflat subrounded indurated 2 to 5-millimeter unspecified fragments; noneffervescent, by HCl, 1 normal; clear wavy boundary. Lab sample # 15N03791

Bw--16 to 30 centimeters (6.3 to 11.8 inches); dark yellowish brown (10YR 4/4) broken face very fine sandy loam; 65 percent sand; 34 percent silt; 1 percent clay; weak coarse subangular blocky parts to weak medium platy structure; friable, nonsticky, nonplastic; very few very fine roots and very few very coarse roots and common medium roots and common fine roots and very few coarse roots; 0 percent nonflat subrounded indurated 75 to 250-millimeter unspecified fragments and 0 percent nonflat subrounded indurated 250 to 600-millimeter unspecified fragments and 1 percent nonflat subrounded indurated 2 to 5-millimeter unspecified fragments and 10 percent nonflat subrounded indurated 5 to 75-millimeter unspecified fragments; noneffervescent, by HCl, 1 normal; gradual wavy boundary. Lab sample # 15N03792. Measurement is 1cm short of minimum thickness for cambic horizon, but the lower boundary is defined as being "gradual and wavy". Since the horizon below did show altered colors and horizon depths are variable across pit face, the horizon is interpreted to be "cambic".

BC--30 to 72 centimeters (11.8 to 28.3 inches); dark yellowish brown (10YR 3/4) broken face extremely gravelly sandy loam; 75 percent sand; 24 percent silt; 1 percent clay; structureless single grain; loose, nonsticky, nonplastic; very few very fine roots and very few very coarse roots and very few medium roots and few fine roots and very few coarse roots; 0 percent nonflat subrounded indurated 250 to 600-millimeter unspecified fragments and 2 percent nonflat subrounded indurated 75 to 250-millimeter unspecified fragments and 25 percent nonflat subrounded indurated 2 to 5-millimeter unspecified fragments and 50 percent nonflat subrounded indurated 5 to 75-millimeter unspecified fragments; noneffervescent, by HCl, 1 normal; clear smooth boundary. Lab sample # 15N03793. "BC" designation based on color of horizon and not pedogenic structure.

C--72 to 125 centimeters (28.3 to 49.2 inches); stratified extremely gravelly coarse sand to gravel; 95 percent sand; 5 percent silt; structureless single grain; loose, nonsticky, nonplastic; 0 percent nonflat subrounded indurated 250 to 600-millimeter unspecified fragments and 10 percent nonflat subrounded indurated 75 to 250-millimeter unspecified fragments and 35 percent nonflat subrounded indurated 5 to 75-millimeter unspecified fragments and 45 percent nonflat subrounded indurated 2 to 5-millimeter unspecified fragments; noneffervescent, by HCl, 1 normal; clear wavy boundary. Lab sample # 15N03794

2BC1--125 to 210 centimeters (49.2 to 82.7 inches); 95 percent olive brown (2.5Y 4/3) broken face very gravelly sandy loam; 70 percent sand; 28 percent silt; 2 percent clay; 5 percent very coarse distinct irregular (2.5Y 3/2) mottles; moderate medium subangular blocky, and moderate coarse subangular blocky structure; friable, nonsticky, nonplastic; 0 percent nonflat subrounded indurated 250 to 600-millimeter unspecified fragments and 2 percent nonflat subrounded indurated 75 to 250-millimeter unspecified fragments and 15 percent nonflat subrounded indurated 2 to 5-millimeter unspecified fragments and 20 percent nonflat subrounded indurated 5 to 75-millimeter unspecified fragments; noneffervescent, by HCl, 1 normal; gradual wavy boundary. Lab sample # 15N03795. Top Depth of horizon is uneven, sloping down to the right of the pit face. Measurement of this depth taken at center of pit face.

2BC2--210 to 300 centimeters (82.7 to 118.1 inches); dark grayish brown (2.5Y 4/2) broken face very gravelly sandy loam; 60 percent sand; 32 percent silt; 8 percent clay; 5 percent very coarse prominent irregular (7.5YR 4/4) mottles; weak fine subangular blocky, and weak medium subangular blocky structure; friable, nonsticky, nonplastic; 1 percent nonflat subrounded indurated 250 to 600-millimeter unspecified fragments and 1 percent moderately cemented charcoal fragments and 15 percent nonflat subrounded indurated 2 to 5-millimeter unspecified fragments and 15 percent nonflat subrounded indurated 75 to 250-millimeter unspecified fragments and 20 percent nonflat subrounded indurated 5 to 75-millimeter unspecified fragments; noneffervescent, by HCl, 1 normal. Lab sample # 15N03796