LOCATION TOTATLANIKA             AK

Established Series
Rev. DKM/DLM
02/2022

TOTATLANIKA SERIES

Depth class: moderately deep
Drainage class: very poorly or poorly drained
Parent material: fine-silty alluvium
Landform: flood plains
Slopes: 0 to 2 percent
Mean annual precipitation: about 11 inches, 280 mm
Mean annual temperature: about 25 degrees F., -4 degrees C.

TAXONOMIC CLASS:

TYPICAL PEDON: Totatlanika peat - on a slope of 0 percent under stunted black spruce forest at 520 feet elevation. (All colors are for moist soil unless noted)

Oi--0 to 4 inches, (0 to 10 cm); very dark brown (10YR 2/2); peat; many very fine to coarse roots; strongly acid (pH 5.2); abrupt smooth boundary.

Oa--4 to 9 inches, (10 to 22 cm); black (7.5YR 2.5/1); muck; many very fine to coarse roots; slightly acid (pH 6.1); clear wavy boundary. (combined thickness of the O horizons 8 to 15 inches thick)

AO--9 to 11inches, (22 to 27 cm); very dark gray (10YR 3/1); mucky silty clay; weak medium subangular blocky structure; friable, moderately sticky, slightly plastic; many very fine to coarse roots; slightly acid (pH 6.4); clear smooth boundary. (0 to 5 inches thick)

Bjjg1--11 to 15 inches, (27 to 38 cm); 67 percent gray (N6/) and 25 percent yellowish brown (10YR 5/6); silt loam; moderate medium platy structure; friable, moderately sticky, slightly plastic; common fine and very fine and few medium roots; 7 percent fine prominent strong brown (7.5YR 4/6) redoximorphic concentrations; slightly acid (pH 6.1); gradual smooth boundary.

Bjjg2--15 to 28 inches, (38 to 71 cm); grayish brown (2.5Y 5/2); silt loam; weak medium platy structure; firm, moderately sticky, slightly plastic; few very fine and fine roots; 5 percent fine prominent brown (7.5YR 4/4) redoximorphic concentrations and 5 percent fine faint gray (2.5Y 6/1) redoximorphic depletions; neutral (pH 6.8); abrupt wavy boundary. (combined thickness of the Bjjg horizons 9 to 23 inches thick)

Bjjgf--28 to 72 inches, (71 to 183 cm); permanently frozen material.

TYPE LOCATION: Greater Nenana Area, Alaska; about 1 mile East of Anderson; in the SW 1/4 of the SE 1/4, section 33, T. 6 S.., R. 8 W.; Fairbanks (B-5) 1:63,360 quad; Fairbanks Meridian; UTM north 7136943 and UTM east 396553, zone 6.

RANGE IN CHARACTERISTICS:

Particle-size control (section weighted average):
Percent clay in the control section: 20 to 35 percent

Soil moisture regime: aquic
Mean annual soil temperature: 26 degrees F., 50 cm
Thickness of organic materials: 8 to 15 inches, 20 to 37 cm
Texture of the fine silty mantle: silt loam or silty clay loam
Texture of the permafrost substratum: permanently frozen material
Percent clay in the fine silty mantle: 20 to 35 percent
Thickness of histic epipedon 8 to 16 inches, 20 to 37 cm
Thickness of redoximorphic concentrations: from 11 to 72 inches, 27 to 183 cm.
Thickness of redoximorphic depletions: from 15 to 72 inches, 38 to 183 cm.
Thickness of cryoturbation and gelic materials: 11 to 72 inches, 27 to 183 cm.
Depth to permafrost: 17 to 31 inches, 44 to 80 cm

O horizon:
Matrix color: hue of 7.5YR or 10YR; value of 2 or 3; chroma of 2 to 4
Texture: peat or muck
Reaction class: very strongly acid to slightly acid

A horizon:
Matrix color: hue of 10YR or 2.5Y; value of 2 or 3; chroma of 1 or 2
Texture: mucky silt loam, mucky silty clay loam or mucky silty clay
cryoturbation and gelic materials: 0 to 25 percent
Reaction class: moderately acid or slightly acid

Bjjg horizon:
Matrix color: hue of 2.5Y to N; value of 3 to 5; chroma of 0 to 2
Redoximorphic concentrations: hue of 7.5YR to 2.5Y; value of 4 or 5; chroma of 4 to 6
Redoximorphic depletions: hue of 2.5Y to N; value of 4 to 6; chroma of 0 to 2
Texture: silt loam or silty clay loam
cryoturbation and gelic materials: 5 to 30 percent
Reaction class: slightly acid to neutral

Bjjgf horizon:

COMPETING SERIES: There are no soils competing in this family

GEOGRAPHIC SETTING:
Parent material: fine-silty alluvium
Landform: flood plain
Slope: 0 to 2 percent
Mean annual temperature: 23 to 28 degrees F., -5 to -2 C.
Mean annual precipitation: 10 to 15 inches, 250 to 380 mm

GEOGRAPHICALLY ASSOCIATED SOILS: These include the Talanika and Liscum. Tatlanika soils are on similar landform and drainage but do not have a Histic epipedon. Liscum soils are in depressions, are very poorly drained and lack permafrost.

DRAINAGE AND PERMEABILITY: very poorly or poorly drained, low runoff, saturated hydraulic conductivity rapid in the fibric soil material, slow in the sapric and fine silty mantle and impermeable in the permafrost.

USE AND VEGETATION: Used for recreation and wildlife habitat. The native vegetation includes black spruce and ericaceous shrub.

DISTRIBUTION AND EXTENT: MLRA 229, Interior Alaska Lowlands, The series is of moderate extent.

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

SERIES ESTABLISHED: Greater Nenana Area, Alaska, year proposed

REMARKS: Diagnostic features and horizons recognized in this profile include:
Histic epipedon: 0 to 11 inches, 0 to 27 cm
Reduced matrix: 11 to 72 inches, 27 to 183 cm
redoximorphic concentrations: from 11 to 72 inches, 27 to 183 cm.
redoximorphic depletions: from 15 to 72 inches, 38 to 183 cm.
cryoturbation and gelic materials: from 11 to 72 inches, 27 to 183 cm.
depth to permafrost: 28 inches, 71 cm.
Temperature regime: Cryic 26 F., -3 C.
Moisture regime: aquic

ADDITIONAL DATA: National Soil Survey Laboratory data S04AK-068-003 from Denali Borough, Alaska, samples by SSL, Lincoln, NE, 07/2004

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National Cooperative Soil Survey
U.S.A.