LOCATION WINESKEY                AK

Tentative Series
Rev. CAP
04/2024

WINESKEY SERIES

Depth class: very deep
Drainage class: somewhat poorly and moderately well drained
Parent material: moderately decomposed herbaceous organic material over medial silty volcanic ash over silty glaciolacustrine deposits
Landscape: Islands
Landform: glaciolacustrine plains
Slopes: 0 to 15 percent
Mean annual precipitation: about 700 mm (28 in)
Mean annual temperature: about 4 degrees C. (39 degrees F.)
Frost-free season: 20 to 50 days

TAXONOMIC CLASS: Medial over loamy, amorphic over mixed, superactive Oxyaquic Haplocryands

TYPICAL PEDON: Wineskey silt loam - on a grass herbaceous and shrubby glaciolucustrine plain at 110 meters (360 feet). (All colors are for moist soil.)

Oe--0 to 6 centimeters (0 to 2 inches); black (10YR 2/1), dark gray (10YR 4/1), dry; moderately decomposed plant material; soft, very friable, nonsticky, nonplastic; many very fine, fine, common medium and coarse roots throughout; strongly acid (pH 5.1); clear wavy boundary. (3 to 15 cm, 1 to 6 in thick)

A1--6 to 15 centimeters (2 to 6 inches); dark reddish brown (5YR 3/3) medial silt loam; weak fine granular structure; soft, very friable, nonsticky, nonplastic; common very fine, fine, medium and coarse roots throughout; common very fine and common fine irregular pores; very strongly acid (pH 4.5); gradual smooth boundary.

A2--15 to 23 centimeters (6 to 9 inches); medial silt loam; weak fine granular structure; soft, very friable, nonsticky, nonplastic; common fine and medium roots throughout; common very fine and common fine irregular pores; 5 percent gravel; strongly acid (pH 5.2); clear wavy boundary. (Combined thickness is 10 to 25 cm, 4 to 10 in thick)

Bw1--23 to 35 centimeters (9 to 14 inches); medial silt loam; weak fine subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; common fine, medium and coarse roots throughout; common very fine and fine irregular pores; 10 percent gravel; strongly acid (pH 5.2); gradual smooth boundary.

Bw2--35 to 72 centimeters (14 to 28 inches); medial silt loam; moderate medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; common fine roots throughout; common very fine and fine irregular pores; 15 percent medium distinct spherical reddish brown (5YR 5/4) masses of oxidized iron throughout; redoximorphic features start below 48 cm; 10 percent gravel; strongly acid (pH 5.2); clear wavy boundary. (Combined thickness is 37 to 75 cm, 14 to 30 in thick)

2Cg--72 to 200 centimeters (28 to 79 inches); silty clay loam; massive; slightly hard, friable, slightly sticky, moderately plastic; common very fine roots throughout; few very fine irregular pores; 15 percent medium prominent spherical gray (10YR 6/1) masses of reduced iron throughout and 15 percent medium distinct spherical yellowish brown (10YR 5/6) masses of oxidized iron throughout; 5 percent gravel; moderately acid (pH 5.7).

TYPE LOCATION: Kodiak Archipelago Soil Survey Area, Alaska; Latitude 57 degrees 32 minutes 41.00 seconds and Longitude 154 degrees 8 minutes 47.00 seconds west, UTM north 6378603.85 and UTM east 431381.91, zone 5, Datum WGS84.

RANGE IN CHARACTERISTICS:

Soil moisture regime: udic
Mean annual soil temperature: 1.6 to 3.3 degrees C. (34.8 to 37.9 degrees F.)
Thickness of organic material: 3 to 15 cm (1 to 6 in)
Depth to andic properties: 3 to 15 cm (1 to 6 in)
Depth to cambic horizon: 13 to 40 cm (5 to 16 in)
Depth to glaciolucustrine sediments: 50 to 115 cm (20 to 45 in)
Depth to aquic conditions: 41 to 100 cm (16 to 40 in)

Oa, Oe, Oi horizon:
Hue: 7.5YR to 10 YR
Value: 2 to 5
Chroma: 1 to 4
Texture: slightly, moderately, or highly decomposed plant material
Organic matter: 60 to 90 percent
Reaction class: extremely acid to moderately acid (pH 3.5 to 6.0)

A horizon:
Hue: 7.5YR to 10 YR
Value: 2 to 5
Chroma: 1 to 3
Texture: medial silt loam, silt, loam, and very fine sandy loam or their gravelly analogues
Rock fragments: 0 to 10 percent
Silt: 40 to 90 percent
Clay: 2 to 10 percent
Reaction class: extremely acid to moderately acid (pH 3.5 to 6.0)

Bw horizon:
Hue: 7.5YR to 10YR
Value: 2 to 5
Chroma: 3 to 6
Texture: (medial) silt loam, silt, loam, or very fine sandy loam
Silt: 40 to 90 percent
Clay: 2 to 12 percent
Rock fragments: 0 to 10 percent
Reaction class: extremely acid to moderately acid (pH 3.5 to 6.0)

2C horizon:
Hue: 7.5YR, 10YR, or 2.5Y
Value: 3 to 6
Chroma: 1 to 4
Texture: silt loam or silty clay loam
Silt: 50 to 80 percent
Clay: 12 to 38 percent
Sand: 8 to 37 percent
Rock fragments: 0 to 14 percent
Reaction Class: extremely acid to slightly acid (pH 3.5 to 6.5)

COMPETING SERIES: There are no competing series.

GEOGRAPHIC SETTING:
Elevation: 50 to 150 meters (150 to 500 feet)
Parent material: herbaceous organic material over medial silty volcanic ash over silty glaciolacustrine deposits
Landform: glaciolucustrine plains
Slope: 0 to 15 percent
Mean annual precipitation: 600 to 800 mm (24 to 32 in)
Mean annual temperature: 4 to 6 degrees C. (39 to 43 degrees F.)
Frost free period: 20 to 50 days

GEOGRAPHICALLY ASSOCIATED SOILS: These include Aleneva, Alitak, Koniag, Luchek, Rezanof, Sulua, Tungalara, and Yukuk.
Aleneva soils have sandy-skeletal glacial till substratum and occur on similar landform positions.
Alitak soils have thick organic horizons, have aquic conditions within 25 cmn (10 in), lack glaciolucustrine substratum, and occur in depressions.
Koniag soils lack aquic conditions within 100cm (40 in), have loamy-skeletal glacial till substratum, and occur on plains and hills on higher landform positions.
Luchek soils have thick organic material over loamy-skeletal glacial till and occur on drainageways and depressions.
Rezanof soils have mollic epipedons, lack aquic conditions within 100cm (40 in), and occur on higher landform positions.
Sulua soils have thick organic material over loamy-skeletal glacial till and occur on drainageways and depressions.
Tungalara soils lack aquic conditions within 100cm (40 in), have sandy-skeletal outwash substratum, and occur on plains and hills on higher landform positions.
Yukuk soils have aquic features within 0 to 25 cm (0 to 10 in) and occur on drainageways and depressions.

DRAINAGE AND PERMEABILITY:
Drainage class: somewhat poorly and moderately well drained
Saturated Hydraulic Conductivity: very high in the Oe, moderately high or high in the A and Bw horizons, and moderately high in the 2C.
Permeability: rapid or very rapid in the Oe horizon, moderate to rapid in the A and Bw, and slow to moderate in the 2C horizons.
Runoff: low to medium.

USE AND VEGETATION:
Used for water shed. Native vegetation is Sitka Spruce, Forb meadow and Grass.

DISTRIBUTION AND EXTENT: MLRA 220 Alexander Archipelago-
Gulf of Alaska Coast.
Extent: moderate.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Wasilla, Alaska

SERIES ESTABLISHED: Kodiak Archipelago Soil Survey, Alaska, 2024.

REMARKS: Diagnostic features and horizons recognized in this profile include:

Organic material: 0 to 6 cm (0 to 2 in) (moderately decomposed hemic plant material) (Oe horizon)

Andic soil properties: 6 to 72 cm (2 to 28 in) (A, Bw1, Bw2 horizons)

Cambic horizon: 23 to 72 cm (9 to 28 in) (Bw1, Bw2 horizons)

Lithological discontinuity: 72 to 200 cm (28 to 79 in)

Aquic conditions: 41 to 100 cm (16 to 40 in) (Bw1, Bw2, 2C horizons)

ADDITIONAL DATA:

User pedon Id: 08AO 29001

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National Cooperative Soil Survey
U.S.A.