LOCATION FORELAND                AK

Established Series
Rev. SR/DVD/DLM
05/2022

FORELAND SERIES

Depth class: very deep
Drainage class: very poorly drained
Parent material: sandy and gravelly alluvium
Landform: stream terraces, outwash plains, or kame moraines
Slopes: 0 to 10 percent
Mean annual precipitation: 18 22 inches.
Mean annual temperature: 33 36 degrees F.

TAXONOMIC CLASS: Sandy, mixed Histic Cryaquepts

TYPICAL PEDON: Foreland silt loam - on a 2 percent slope under black spruce forest (All colors are for moist soil)

Oi--0 to 7 inches; dark brown (7.5YR 3/3) peat; many very fine, fine, medium, and coarse roots: extremely acid (pH 4.3); abrupt smooth boundary.

Oe1--7 to 10 inches; black (10YR 2/1) mucky peat; many very fine, fine, medium, and coarse roots; extremely acid (pH 4.4); clear smooth boundary.

Oe2--10 to 13 inches; very dark gray (10YR 3/1) mucky peat; many very fine, fine, medium, and coarse roots; extremely acid (pH 4.4); abrupt smooth boundary. (Combined thickness of the O horizons is 8 to 15 inches thick)

A--13 to 19 inches; dark brown (10YR 3/3) sand; loose, nonsticky and nonplastic; few very fine and fine roots; common fine distinct redoximorphic depletions dark gray (2.5Y 4/1); slightly acid (pH 6.5); clear wavy boundary. (3 to 8 inches thick)

Cg--19 to 26 inches; olive brown (2.5Y 4/4) sand; single grained; loose, nonsticky and nonplastic; few very fine roots; few fine distinct redoximorphic depletions dark grayish brown (2.5Y 4/2); slightly acid (pH 6.3); clear smooth boundary.

Cg2--26 to 34 inches; olive brown (2.5Y 4/4) gravelly sandy loam; massive; friable, nonsticky and nonplastic; few very fine roots; few fine distinct redoximorphic depletions dark grayish brown (2.5Y 4/2); 15 percent gravel; slightly acid (pH 6.4); clear wavy boundary.

Cg3--34 to 60 inches; dark grayish brown (2.5Y 4/2) sand; single grained; loose, nonsticky and nonplastic; few fine faint redoximorphic depletions dark grayish brown (2.5Y 4/2); slightly acid (pH 6.5). (Combined thickness of the 2Cg horizons is 15 to 30 inches thick)

TYPE LOCATION: Western Kenai Peninsula Area, Alaska; about 2.25 miles northeast of Scaup Lake; in the SW 1/4 of the NE 1/4, section 21, T. 9 N., R. 9 W; Kenai D3 SE 1:25,00 quad; Seward Meridian; UTM north 67488732 and UTM east 615116, zone 5.

RANGE IN CHARACTERISTICS:

Soil moisture regime: aquic
Mean annual soil temperature: about 33 degrees F
Thickness of histic horizon: 8 to 15 inches
Particle size control section (weighed average): greater than 85 percent sand

O horizon:
Matrix color:
Reaction class: extremely acid to moderately acid

A horizon:
Matrix color: hue of 10YR or 2.5Y; value of 2 or 3; chroma of 1 to 3
Redoximorphic features: hue of 2.5Y or 5Y; value of 4 or 5; chroma of 1 or 2
Texture: sand, loamy sand, fine sandy loam
Coarse fragments: 0 to 5 percent gravel
Reaction class: moderately acid to neutral

Cg horizon:
Matrix color: hue of 10YR or 5Y; value of 3 to 6; chroma of 1 to 4
Redoximorphic features: hue of 2.5Y or 5Y; value of 4 or 5; chroma of 1 or 2
Texture: sand, loamy sand, sandy loam modified by 0 to 20 percent gravel
Reaction class: moderately acid to neutral

COMPETING SERIES: There are no competing series in this classification.

GEOGRAPHIC SETTING:
Depth class: very deep
Drainage class: very poorly drained
Parent material: sandy and gravelly alluvium
Landform: stream terraces, outwash plains, or kame moraines
Slopes: 0 to 10 percent
Mean annual temperature: 33 36 degrees F.
Mean annual precipitation: 18 22 inches.

GEOGRAPHICALLY ASSOCIATED SOILS:

DRAINAGE AND PERMEABILITY: Poorly drained, very high runoff, saturated hydraulic conductivity is high or very high.

USE AND VEGETATION: The native vegetation is a forest of stunted black spruce, with some willows and alder. There are no cleared areas.

DISTRIBUTION AND EXTENT: MLRA 224 Cook Inlet Lowlands, South-central Alaska. The series is small.

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

SERIES ESTABLISHED: Kenai-Kasilof Area, Alaska. 1960.

REMARKS: Diagnostic features and horizons recognized in this profile include:
Histic epipedon: 0 to 13 inches.
Temperature regime: cryic
Moisture regime: aquic

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National Cooperative Soil Survey
U.S.A.