120 Classification of the Soils – Mariel Series

Classification of the Soils
 Mariel Series

Depth class: Very deep

Drainage class: Very poorly drained

Permeability: Moderate

Position on landscape: Bogs in mountain basins

Parent material: Organic material

Slope range: 0 to 3 percent

Elevation: 5,000 to 6,500 feet

Average annual precipitation: 50 to 70 inches

Average annual air temperature: 38 to 42 degrees F

Frost-free period: 10 to 50 days

Frequency of ponding: Frequent

 Taxonomic class: Euic Typic Cryohemists

 Typical Pedon

 Oe1—0 to 5 inches; black (10YR 2/1) mucky peat; about 100 percent unrubbed fibers, 40 percent rubbed; many very fine, fine, and medium roots; strongly acid (pH 5.5); gradual smooth boundary.

Oe2—5 to 15 inches; very dark brown (10YR 2/2) mucky peat; about 85 percent unrubbed fibers, 35 percent rubbed; many very fine and fine roots; strongly acid (pH 5.5); clear wavy boundary.

Oa—15 to 61 inches; dark brown (7.5YR 3/2) muck; about 50 percent unrubbed fibers, 15 percent rubbed; many very fine roots; very strongly acid (pH 5.0).

 Typical Pedon Location

 Map unit in which located: Mariel-Stirfry complex, 0 to 3 percent slopes

Location in park: Mainly in Sphagnum Bog and Annie Creek bottom; 569016 meters easting and 4745702 meters northing, UTM Zone 10T, NAD 27

 Range in Characteristics

 Profile:

Depth to bedrock—more than 60 inches

Hue—10YR or 7.5YR

Depth to sapric material—7 to 15 inches

Depth of ponding—6 to 8 inches above the surface in January through June

Depth to water table—3 to 6 inches below the surface in July through December and at the surface in January through June

Oe horizon:

Value—2 or 3 moist

Chroma—1 or 2 moist

Texture—hemic material that is 80 to 100 percent unrubbed fibric material, 25 to 40 percent rubbed

Oa horizon:

Value—2 to 4 moist

Chroma—1 or 2 moist

Texture—sapric material that is 30 to 50 percent unrubbed material, 5 to 15 percent rubbed

 

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