LOCATION TEEDRINJIK              AK

Established Series
JDP/NR/TJR
02/2022

TEEDRINJIK SERIES

Landscape--alluvial plains
Landform--flood plains
Slope--0 to 3 percent
Parent material--alluvium
Mean annual precipitation--about 255 mm
Mean annual air temperature--about -6 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--udic
Soil temperature regime--cryic
Soil moisture subclass--typic

TAXONOMIC CLASS: Coarse-loamy over sandy or sandy-skeletal, mixed, superactive, nonacid Typic Cryorthents

TYPICAL PEDON: Teedrinjik loam on a forested flood plain with a slope of 1 percent and an elevation of 157 m (The soil was moist throughout when described on August 12, 2012.)

Oe--0 to 10 cm; moderately decomposed plant material; many medium roots and common coarse roots; neutral (pH 6.7); clear smooth boundary

A--10 to 25 cm; loam; light brownish gray (2.5Y 6/2) dry, dark grayish brown (2.5Y 4/2) moist; weak fine granular structure; soft, very friable; many fine roots and common medium roots; common fine and medium pores; noneffervescent; neutral (pH 6.6); clear smooth boundary

C1--25 to 70 cm; stratified fine sandy loam; 60 percent light brownish gray (2.5Y 6/2) dry, dark grayish brown (2.5Y 4/2) moist, and 40 percent very pale brown (10YR 8/3) dry, pale brown (10YR 6/3) moist; massive; soft, very friable; many fine roots; few fine and medium pores; 2 percent gravel; noneffervescent; neutral (pH 7.1); clear wavy boundary

2C2--70 to 140 cm; gravelly sand; very pale brown (10YR 8/3) dry, pale brown (10YR 6/3) moist; single grain; loose; 20 percent gravel; noneffervescent; slightly alkaline (pH 7.7)

2C3--140 to 150 cm; very gravelly sand; yellowish brown (10YR 5/4) moist; single grain; loose; 45 percent gravel; noneffervescent; slightly alkaline (pH 7.7)

TYPE LOCATION: Yukon-Koyukuk Census Area, Alaska; latitude 66.5149167 degrees, longitude -148.0536111 degrees, datum WGS84 (coordinates determined with a GPS)

RANGE IN CHARACTERISTICS:
Mean annual soil temperature--0.5 to 2.5 degrees C
Depth to lithologic discontinuity--50 to 100 cm
Rock fragment content--0 to 35 percent gravels and cobbles (by weighted average) above the lithologic discontinuity, and 35 to 85 percent gravels and cobbles (by weighted average) below the lithologic discontinuity

Oi horizon (where present)
Thickness--2 to 12 cm
Reaction--6.0 to 7.5

Oe horizon
Thickness--2 to 12 cm
Reaction--6.0 to 7.5

A horizon
Hue--10YR, 2.5Y
Value--2 to 4 moist, 4 to 6 dry
Chroma--1 or 2 moist
Fine-earth texture--silt loam, very fine sandy loam, loam
Clay content--0 to 18 percent
Reaction--6.5 to 7.5
Effervescence--none to slight
Thickness--5 to 15 cm

C1 horizon
Hue--10YR, 2.5Y
Value--3 to 6 moist, 5 to 8 dry
Chroma--1 to 3 moist
Fine-earth texture--fine sandy loam, loamy sand, fine sand to coarse sand
Rock fragment content--0 to 50 percent total gravels and cobbles
Clay content--0 to 10 percent
Reaction--7.0 to 8.5
Effervescence--none to strong
Thickness--40 to 80 cm

2C2 and 2C3 horizons
Value--3 to 6 moist, 5 to 8 dry
Chroma--1 to 3 moist
Fine-earth texture--loamy sand, fine sand to coarse sand
Rock fragment content--20 to 85 percent total gravels and cobbles
Clay content--0 to 10 percent
Reaction--7.0 to 8.5
Effervescence--none to strong
Combined thickness--60 to 100 cm

COMPETING SERIES:
None

GEOGRAPHIC SETTING:
Elevation--100 to 300 m
Climate--short, warm summers and long, very cold winters
Mean annual precipitation--210 to 310 mm
Mean annual air temperature-- -12 to 0 degrees C
Frost-free period--45 to 97 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Hodzana--aquic conditions within 50 cm; lower positions on similar landforms
Jokinaugh--aquic conditions within 25 cm with frequent ponding; depressions on similar landforms

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturation in normal years--none
Flooding--occasional, brief
Ponding--none
Saturated hydraulic conductivity (Ksat)--high or very high in the surface horizons and very high in the subsurface

USE AND VEGETATION:
Use--wildlife habitat, subsistence, recreation
Potential natural vegetation--white spruce, balsam poplar, resin birch, prickly rose, squashberry, twinflower, thinleaf alder, field horsetail, tall bluebell, splendid feathermoss

DISTRIBUTION AND EXTENT: Yukon Flats Lowlands, Alaska; MLRA 232; small extent

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: WASILLA, ALASKA

SERIES ESTABLISHED: Yukon Flats National Wildlife Refuge, Yukon-Koyukuk Census Area, Alaska; 2020

REMARKS:
Diagnostic horizons and other features in this pedon
*Particle-size control section--zone from 35 to 110 cm
*Ochric epipedon
*Strongly contrasting particle size class
*Lithologic discontinuity--2C2 horizon

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National Cooperative Soil Survey
U.S.A.