LOCATION WEARYRIVER              AK

Established Series
SAS/TJR/SJN
02/2022

WEARYRIVER SERIES

The Wearyriver series consists of very deep, very poorly drained soils formed in grassy organic parent material. Slopes range from 0 to 6 percent. The mean annual precipitation is about 660 millimeters and the mean annual air temperature is about 0.5 degrees C.

TAXONOMIC CLASS: Euic Typic Cryofibrists

TYPICAL PEDON: Wearyriver peat, located on a dip of a plain with a slope of 1 percent and elevation of 5 meters; when described on July 27th, 2007 the soil was saturated throughout (Colors are for moist soil unless otherwise noted)

Oi1--0 to 30 cm; black (10YR 2/1) peat; many very fine and fine roots, common medium roots, and common coarse roots; strongly acid (pH 5.4); diffuse wavy boundary

Oi2--30 to 183 cm; very dark brown (7.5YR 2.5/2) peat; many very fine and fine roots, common medium roots, and few coarse roots; strongly acid (pH 5.4)

TYPE LOCATION: Dillingham Census Area, Alaska; 2 km north of the city center of the City of Dillingham; 59.062222 degrees north latitude and 158.4622222 degrees west longitude.

RANGE IN CHARACTERISTICS:
Mean annual soil temperature - 0.7 to 2.3 degrees C (cryic soil temperature regime)
Soil moisture control section - Soil is saturated at the soil surface for much of the growing season in most years (aquic soil moisture regime)
Depth to aquic conditions - 0 cm
Thickness of fibric soil material - 183 cm

Particle-size control section-
Rock fragments - 0 percent
Reaction - 4.8 to 5.5

Oi1 horizon
Thickness - 18 to 65 cm
Reaction - 4.8 to 5.4
Rock fragments - 0 percent
Organic matter content - 75 to 95 percent

Oi2 horizon
Thickness - 118 to 165 cm
Reaction - 5.0 to 5.5
Rock fragments - 0 percent
Organic matter content - 75 to 95 percent

COMPETING SERIES:
Dunkleber - Mean annual soil temperature is 2.2 to 5.0 degrees C; reaction is 5.2 to 6.2; found on floodplains; contains coarse fragments in the lower part of the profile

GEOGRAPHIC SETTING:
Parent material - Grassy organic material
Landform - Dips on plains
Slope - 0 to 6 percent
Elevation - 1 to 219 meters
Climate - Cool summers; cold winters, August and September are the wettest months
Mean annual precipitation - 608 to 924 mm
Mean annual air temperature - -0.4 to 0.7 degrees C
Frost free duration - 85 to 140 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Snakeriver - Very poorly drained, formed in organic parent material, no mineral soil present, flood plains
Pellernarquq - Very poorly drained, formed in organic parent material over loess, dips and talfs on plains
Nushagak - Poorly drained, formed in organic material over loess, talfs on plains
Muklung - Moderately well drained, formed in organic material over volcanic ash and loess, talfs and rises on plains
Kanakanak - Well drained, formed in loess, rises on plains

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: (Ksat)
Drainage class - Very poorly drained
Saturation in normal years - At the soil surface
Flooding - None
Ponding - Frequent and very long
Ksat - Moderately high to high throughout the profile

USE AND VEGETATION:
Use - Wildlife habitat and recreation
Potential natural vegetation - Western Alaska maritime grassland composed of sedges, cottongrasses, dwarf birch, bog rosemary, sweetgale, and sphagnum moss

DISTRIBUTION AND EXTENT: Bristol Bay Lowlands; MLRA 236; moderate extent

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

SERIES ESTABLISHED: Nushagak-Mulchatna Watershed Soil Survey, Dillingham Census Area, Alaska, 2019

REMARKS:
Particle-size control section - 0 to 130 cm
Soil moisture regime - Aquic
Aquic soil conditions - All horizons
Fibric soil material - All horizons

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National Cooperative Soil Survey
U.S.A.