LOCATION MONASHKA                AK

Established Series
IRD. JDP/NDP/TJR
05/2022

MONASHKA SERIES

Landscape--shore complexes
Landform--dune slacks of coastal plains
Slope--0 to 3 percent
Parent material--eolian sand
Mean annual precipitation--about 3700 mm
Mean annual air temperature--about 4 degrees C
Depth class--very deep
Drainage class--very poorly drained
Soil moisture regime--aquic
Soil temperature regime--cryic
Soil moisture subclass--typic

TAXONOMIC CLASS: Sandy, mixed Typic Cryaquents

TYPICAL PEDON: Monashka sand on an herbaceous dune slack, on a slope of 1 percent at an elevation of 1 m (When described on May 28, 2014, the soil was wet throughout.)

Oe--0 to 4 cm; mucky peat ; slightly acid (pH 6.1); abrupt smooth boundary

Oa--4 to 8 cm; muck ; moderately acid (pH 5.9); clear smooth boundary

Cg1--8 to 19 cm; sand, light gray (10YR 7/1) dry, gray (10YR 5/1) moist; single grain; loose, nonsticky and nonplastic; common very fine to medium roots; common very fine and fine interstitial pores; 10 percent masses of oxidized iron, yellowish red (5YR 4/6) moist; very slightly effervescent (HCL, 1N); neutral (pH 6.8); clear smooth boundary

Cg2--19 to 150 cm; sand, gray (5Y 5/1) dry, very dark bluish gray (10B 3/1) moist; single grain; loose, nonsticky and nonplastic; common medium roots; few fine and common very fine interstitial pores; 5 percent masses of oxidized iron, yellowish red (5YR 4/6) moist; slightly effervescent (HCL, 1N); neutral (pH 7.2)

TYPE LOCATION: Glacier Bay National Park and Preserve-Yakutat Area, Alaska; Yakutat City and Borough, Alaska; latitude 59.0874120, longitude -138.4026550, datum WGS84 (coordinates determined by a GPS unit)

RANGE IN CHARACTERISTICS:
Mean annual soil temperature--3 to 7 degrees C
Soil moisture control section--usually saturated at or near the soil surface year round
Depth to redoximorphic iron concentrations--within 25 cm of soil surface
Depth to reduced matrix--within 25 cm of soil surface
Other features--free carbonates
Clay content in particle-size control section--0 to 2 percent

Oi horizon (where present)
Thickness--0 to2 cm

Oe horizon
Thickness--1 to 4 cm

Oa horizon
Thickness--1 to 4 cm

Cg1 horizon
Hue--2.5Y, 10Y
Value--2.5 to 5 moist
Content of clay--0 to 2 percent
Reaction (pH)--6.3 to 6.9
Effervescence--very slightly effervescent, slightly effervescent
Thickness--10 to 90 cm

Cg2 horizon
Hue--2.5Y, 10B
Value--2.5 to 3 moist
Content of clay--0 to 2 percent
Reaction (pH)--6.6 to 7.3
Effervescence--very slightly effervescent, slightly effervescent
Thickness--40 to 135 cm

COMPETING SERIES:
Ashmun--O horizon composed of forest litter; on flood plains; lithologic discontinuity
Chilkoot--pH of 5.6 to 6.0; no free carbonates; O horizon composed of forest litter
Perouse- -O horizon composed of forest litter; pH of 7.9 to 8.4 throughout mineral horizons
Topsy- -O horizon composed of forest litter; lithologic discontinuity; not subject to ponding; aquic conditions within 25 cm of soil surface

GEOGRAPHIC SETTING:
Elevation--0 to 30 m
Climate--cool, moist summers; mild, wet winters
Mean annual precipitation--2150 to 6400 mm
Mean annual air temperature--0 to 8 degrees C
Frost-free period--90 to 154 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Beardslee--no aquic conditions within a depth of 150 cm (well drained); on similar landforms

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--very poorly drained
Saturated hydraulic conductivity (Ksat)--very high throughout
Ponding--frequent, very long periods; 1 to 10 cm of ponding in May through December
Saturation in normal years--at the soil surface

USE AND VEGETATION:
Use--wildlife habitat, recreation
Potential natural vegetation--Nootka lupine, Schreber's big red stem moss, red fescue, goose neck moss, little yellow rattle, undergreen willow, common cowparsnip, common yarrow, silverweed cinquefoil, Lyngbye's sedge, American dunegrass, marsh grass of Parnassus, goose tongue, Barclay's willow, seacoast angelica

DISTRIBUTION AND EXTENT: Alexander Archipelago-Gulf of Alaska Coast, Alaska; MLRA 220; moderate extent

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

SERIES ESTABLISHED: Glacier Bay National Park and Preserve-Gustavus Area, Alaska; 2020.

REMARKS:
Diagnostic horizons and other features in this pedon
*Ochric epipedon
*Redoximorphic iron concentrations--zone from 8 to 150 cm
*Reduced matrix--zone from 8 to 150 cm
*Aquic conditions--zone from 4 to 150 cm
*Free carbonates--zone from 8 to 150 cm
*Particle-size control section--zone from 33 to 108 cm

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National Cooperative Soil Survey
U.S.A.