LOCATION EASTPORT MI
Established Series
Rev. LWB-WEF
08/2012
EASTPORT SERIES
The Eastport series consists of very deep, excessively drained soils formed in sandy eolian deposits on vegetated beach ridges, plains near the Great Lakes or stabilized sand dunes. Slope ranges from 0 to 45 percent. Mean annual precipitation is about 762 mm (30 inches), and mean annual temperature is about 6.1 degrees C (43 degrees F).
TAXONOMIC CLASS: Mixed, frigid Spodic Udipsamments
TYPICAL PEDON: Eastport sand, on a southeast-facing, 10 percent slope in a forested area. (Colors are for moist soil unless otherwise stated.)
Oi--0 to 2 cm (1 inch); slightly decomposed mixed hardwood and conifer leaf litter.
A--2 to 10 cm (1 to 4 inches); dark gray (10YR 4/1) sand, light brownish gray (10YR 6/2) dry; weak medium granular structure; very friable; many medium roots; strongly acid; abrupt smooth boundary. [0 to 10 cm (4 inches) thick]
E--10 to 38 cm (4 to 15 inches); pale brown (10YR 6/3) sand; single grain; loose; many medium roots; slightly acid; abrupt irregular boundary. [10 to 30 cm (4 to 12 inches) thick]
Bs1--38 to 64 cm (15 to 25 inches); strong brown (7.5YR 5/6) sand; single grain; loose; common fine roots; ortstein occupies 10 percent of the horizon and occurs as weakly cemented chunks; slightly acid; clear wavy boundary.
Bs2--64 to 99 cm (25 to 39 inches); brownish yellow (10YR 6/6) sand; single grain; loose; very few very fine roots; ortstein occupies 5 percent of the horizon and occurs as weakly cemented chunks; slightly acid; gradual wavy boundary. [Combined thickness of the Bs horizon is 28 to 64 cm (11 to 25 inches).]
C--99 to 152 cm (39 to 60 inches); light yellowish brown (10YR 6/4) sand; single grain; loose; neutral.
TYPE LOCATION: Mackinac County, Michigan; about 8 miles northwest of St. Ignace; 1,800 feet north and 400 feet east of the center of sec. 14, T. 41 N., R. 5 W.
RANGE IN CHARACTERISTICS:
Thickness of the solum: 46 to 102 cm (18 to 40 inches)
Depth to carbonates: 64 to greater than 152 cm (25 to greater than 60 inches)
Rock fragment content: 0 to 15 percent gravel throughout
Series control section: contains 25 percent or more very coarse, coarse, and medium sand and less than 50 percent fine or very fine sand
A horizon:
Hue: 5YR to 10YR, or is neutral
Value: 2 to 4
Chroma: 0 to 2
Reaction: strongly acid to neutral
E horizon:
Hue: 7.5YR or 10YR
Value: 5 to 7
Chroma: 2 or 3
Reaction: strongly acid to slightly alkaline
Bs horizon:
Hue: 7.5YR or 10YR
Value: 4 to 6
Chroma: 4 to 8
C horizon:
Hue: 7.5YR or 10YR
Value: 4 to 7
Chroma: 3 to 6
COMPETING SERIES: This is the Deer Park series. Deer Park soils are more acid that neutral in the lower part of the series control section.
GEOGRAPHIC SETTING: The Eastport soils are on vegetated beach ridges, plains and stabilized sand dunes along the Great Lakes. Slope gradients usually are between 4 and 18 percent and range from 0 to 45 percent. The soils formed in sandy deposits. Mean annual precipitation ranges from 686 to 838 mm (27 to 33 inches). Mean annual temperature ranges from 4.4 to 7.2 degrees C (40 to 45 degrees F).
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Alpena, Au Gres, East Lake, and
Roscommon soils. The somewhat excessively drained East Lake soils are on adjoining outwash plains. Alpena soils are on lake benches and beach ridges. In addition Alpena soils are sandy-skeletal and East Lake soils have spodic horizons and have 2C horizons of gravelly sand with carbonates. The somewhat poorly drained Au Gres soils and the poorly drained or very poorly drained Roscommon soils are in lower landscape positions.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Excessively drained. Potential for surface runoff is negligible to low. Saturated hydraulic conductivity is high or very high. Permeability is rapid.
USE AND VEGETATION: The greater part is forested to northern red oak, aspen, red maple, black cherry, paper birch, northern white-cedar, and balsam fir. Recreation is a major use. Small areas are in alfalfa or cherry orchards. Native vegetation is chiefly hard maple, beech, elm, ironwood, with some red pines and eastern hemlock.
DISTRIBUTION AND EXTENT: MLRAs 93B, 94A, 94B, 94C, 96, and 99 in northern Lower Peninsula and Eastern Upper Peninsula of Michigan. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: AMHERST, MASSACHUSETTS
SERIES ESTABLISHED: Antrim County, Michigan, 1923.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: from the surface to a depth of 38 cm (15 inches) (O1, A, and E horizons).
Albic horizon: from a depth of 8 to 36 cm (3 to 14 inches) (E horizon).
Verification of the spodic subgroup is needed based on current criteria.
ADDITIONAL DATA: Soil Interpretation Record No.: MI0101.
National Cooperative Soil Survey
U.S.A.