LOCATION METERVIK AK
Established Series
SAS/ABD/TJR
05/2022
METERVIK SERIES
Landscape--outwash plains
Landform--depression of patterned ground
Microfeature--interspace between earth hummocks
Slope--0 to 3 percent
Parent material--volcanic ash over loess
Mean annual precipitation--about 900 mm
Mean annual air temperature--about 1 degree C
Depth class--very deep
Drainage class--moderately well drained
Soil moisture regime--udic
Soil temperature regime--cryic
Soil moisture subclass--aquic
TAXONOMIC CLASS: Medial over loamy, amorphic over isotic Aquic Haplocryands
TYPICAL PEDON: Metervik medial silt loam on a linear glaciated plain that has a slope of 1 percent and is at an elevation of 52 m (The soil was moist throughout when described on August 4, 2013.)
Oi--0 to 12 cm; slightly decomposed plant material; many very fine to medium and common coarse roots; very strongly acid (pH 5.0); clear smooth boundary
Ajj--12 to 28 cm; medial silt loam, 70 percent dark gray (7.5YR 4/1) dry, black (7.5YR 2.5/1) moist, and 30 percent reddish brown (2.5YR 5/3) dry, dark reddish brown (2.5YR 3/3) moist; moderate fine granular structure; slightly hard, friable, nonsticky and nonplastic; common very fine to medium roots; 3 percent gravel; strongly acid (pH 5.3); clear irregular boundary
Bsjj--28 to 80 cm; medial silt loam, matrix color 60 percent yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4) moist, and 40 percent grayish brown (10YR 5/2) dry, dark brown (7.5YR 3/4) moist; moderate medium subangular blocky structure; slightly hard, friable, nonsticky and nonplastic; common very fine and fine roots; 5 percent gravel; moderately acid (pH 5.6); clear smooth boundary
2Bg1--80 to 115 cm; silt loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4) moist; moderate coarse subangular blocky structure; slightly hard, friable, slightly sticky and nonplastic; common fine roots; 5 percent medium distinct irregular iron depletions, light olive gray (5Y 6/2) moist, clear boundaries in matrix, and 15 percent very coarse distinct irregular masses of oxidized iron, yellowish red (5YR 5/6) moist, clear boundaries in matrix; 7 percent gravel; moderately acid (pH 5.8); clear smooth boundary
2Bg2--115 to 150 cm; silt loam, pale yellow (5Y 8/2) dry, light olive gray (5Y 6/2) moist; moderate coarse subangular blocky structure; slightly hard, friable, slightly sticky and nonplastic; 20 percent very coarse distinct irregular masses of oxidized iron, yellowish red (5YR 5/6) moist, clear boundaries in matrix; 10 percent gravel; slightly acid (pH 6.1); clear smooth boundary
TYPE LOCATION: Dillingham Census Area, Alaska, about 35 km east of the village of Togiak; latitude 59.0533843 degrees north, longitude 159.7446099 degrees west, datum WGS 84 (coordinates determined with a GPS)
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--0 to 2 degrees C
Soil moisture control section--dry less than 45 consecutive days in June through October (udic moisture regime)
Depth to aquic conditions--50 to 100 cm
Other features--lithologic discontinuity; andic soil properties; ochric epipedon; cambic horizon; redoximorphic concentrations and depletions; depleted matrix
Layers influenced by volcanic ash
*Thickness--36 to 90 cm
*Phosphorous retention--70 to 100 percent
*Bulk density--0.45 to 0.9 g/cm3
*Ammonium oxalate Al plus 1/2 Fe--0.4 to 6.0 percent
*Volcanic glass content--5 to 40 percent
*Ammonium oxalate Si-0.5 to 1.0 percent
*Ammonium oxalate Fe--0.5 to 2.1 percent
Particle-size control section
*Clay content--5 to 15 percent
*Sand content--20 to 65 percent
*Total rock fragment content--0 to 25 percent
*Sodium fluoride pH--8.4 to 11.6
*Ratio of 1500 kPa water to measured clay--0.6 to 6.0
Oi horizon
Thickness--2 to 14 cm
Ajj horizon
Hue--2.5YR, 7.5YR, 10YR
Value--2 to 3 moist, 4 or 5 dry
Chroma--1 to 3 moist
Fine-earth texture--medial silt loam
Clay content--5 to 12 percent
Reaction--5.0 to 6.3
Gravel content--0 to 10 percent
Thickness--2 to 20 cm
Bulk density--0.45 to 0.9 g/cm3
Phosphorous retention--70 to 100 percent
Volcanic glass content--30 to 60 percent
Bsjj or Bhsjj horizon
Hue--2.5YR, 5YR, 7.5YR
Value--2.5 to 4 moist, 4 to 6 dry
Chroma--3 or 4 moist
Fine-earth texture--medial silt loam, medial loam, medial very fine sandy loam
Clay content--5 to 15 percent
Reaction--5.4 to 5.9
Gravel content--0 to 15 percent
Thickness--29 to 72 cm
Bulk density--0.5 to 0.9 g/cm3
Phosphorous retention--70 to 100 percent
Volcanic glass content--5 to 40 percent
Ammonium oxalate Al plus 1/2 Fe--0.4 to 6.0 percent
2Bg1 horizon
Value--3 to 5 moist, 5 to 7 dry
Chroma--3 to 4 moist
Fine-earth texture--silt loam, loam
Clay content--5 to 15 percent
Reaction--5.5 to 6.5
Total rock fragment content--0 to 20 percent
Gravel content--0 to 20 percent
Cobble content--0 to 10 percent
Thickness--30 to 55 cm
2Bg2 horizon
Hue--5Y, 2.5Y
Value--5 or 6 moist, 7 or 8 dry
Fine earth texture--silt loam, sandy loam
Clay content--5 to 15 percent
Reaction--5.5 to 6.5
Total rock fragment content--5 to 50 percent
Gravel content--5 to 50 percent
Cobble content--0 to 30 percent
Thickness--more than 2 cm
COMPETING SERIES:
Blowout--mean annual soil temperature 4 to 6 degrees C; umbric epipedon
GEOGRAPHIC SETTING:
Elevation--0 to 210 m
Climate--warm, moist summers; cold, moist winters
Mean annual precipitation--750 to 1400 mm
Mean annual air temperature--0.7 to 1.7 degrees C
Frost-free period--85 to 140 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Rocky--no reduced matrix; no redoximorphic iron depletions; similar landscape positions
Nolake--aquic conditions throughout, no andic soil properties, no cambic horizon; glaciated plains
Pungokepuk--no aquic conditions; swales of glaciated plains
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--somewhat poorly drained
Saturation in normal years--below a depth of 0 to 25 cm in April, below a depth of 50 to 100 cm in May through June, and below a depth of 100 to 150 cm throughout all other months
Ponding--occasional, very brief
Saturated hydraulic conductivity (Ksat)--moderately high or high throughout the profile
USE AND VEGETATION:
Use--wildlife habitat, recreation, subsistence
Potential natural vegetation--dwarf birch, greygreen reindeer lichen, black crowberry, marsh Labrador tea, Schreber's big red stem moss, knights plume moss, Canadian burnet, tealeaf willow, bog blueberry
DISTRIBUTION AND EXTENT: Ahklun Mountains, Alaska; MLRA 237; moderate extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: WASILLA, ALASKA
SERIES ESTABLISHED: Togiak National Wildlife Refuge, Dillingham Census Area, Alaska; 2019
REMARKS:
Diagnostic horizons and other features in this pedon
*Particle-size control section--zone from 12 to 112 cm
*Ochric epipedon
*Andic soil properties--zone from 12 to 80 cm
*Cambic horizon--Bsjj horizon
*Redoximorphic iron concentrations and depletions--2Bg1 horizon
*Depleted matrix--2Bg2 horizon
National Cooperative Soil Survey
U.S.A.