LOCATION LUMLEY MI

Established Series
Rev. RWN-MLK
08/2012

LUMLEY SERIES

The Lumley series consists of very deep, very poorly drained, extremely acid soils formed in herbaceous organic deposits more than 130 cm (51 inches) thick in depressions on lake plains, outwash plains, ground moraines, and end moraines. Slope ranges from 0 to 2 percent. Mean annual precipitation is about 787 mm (31 inches), and mean annual temperature is about 8.3 degrees C (47 degrees F).

TAXONOMIC CLASS: Dysic, mesic Typic Haplosaprists

TYPICAL PEDON: Lumley peat, on a level area in a cultivated field. (Colors are for moist soils unless otherwise stated. When described on Oct. 24, 1997, the soil was moist to a depth of 30 cm (12 inches) and saturated below.)

Oi1--0 to 8 cm (3 inches); dark yellowish brown (10YR 4/4) broken face, brown (7.5YR 4/4) rubbed peat (fibric material); about 100 percent fiber, 75 percent rubbed; strong thin and medium platy structure; very friable; few fine and coarse roots; extremely acid; abrupt smooth boundary.

Oi2--8 to 15 cm (3 to 6 inches); dark brown (7.5YR 3/3) broken face, very dark brown (7.5YR 2.5/3) rubbed peat (fibric material); about 80 percent fiber, 75 percent rubbed; strong thin and medium platy structure; very friable; few fine roots; extremely acid; abrupt smooth boundary.

Oa1--15 to 20 cm (6 to 8 inches); black (10YR 2/1) broken face and rubbed muck (sapric material); about 20 percent fiber, 10 percent rubbed; moderate coarse granular structure; very friable; few fine roots; extremely acid; abrupt smooth boundary.

Oa2--20 to 51 cm (8 to 20 inches); dark brown (7.5YR 3/3) broken face, very dark brown (7.5YR 2.5/3) rubbed muck (sapric material); about 30 percent fiber, 10 percent rubbed; weak thin and medium platy structure; very friable; extremely acid; abrupt smooth boundary.

Oa3--51 to 114 cm (20 to 45 inches); dark brown (7.5YR 3/3) broken face and rubbed muck (sapric material); about 20 percent fiber, 5 percent rubbed; weak thin and medium platy structure; extremely acid; abrupt smooth boundary.

Oa4--114 to 135 cm (45 to 53 inches); very dark brown (7.5YR 2.5/3) broken face and rubbed muck (sapric material); about 40 percent fiber, 10 percent rubbed; weak thin and medium platy structure; extremely acid; abrupt smooth boundary.

Oa5--135 to 203 cm (53 to 80 inches); very dark gray (10YR 3/1) broken face, black (10YR 2/1) rubbed muck (sapric material); about 5 percent fiber unrubbed and rubbed; weak thin and medium platy structure; extremely acid.

TYPE LOCATION: Manistee County, Michigan; about 2 miles northwest of the village of Bear Lake; 1800 feet south and 200 feet east of the northwest corner of sec. 31, T. 24 N., R. 15 W., Pleasanton Township; USGS Bear Lake, Michigan topographic quadrangle; lat. 44 degrees 26 minutes 28 seconds N. and long. 86 degrees 10 minutes 53 seconds W., NAD 83.

RANGE IN CHARACTERISTICS:
Thickness of the organic layers: more than 130 cm (51 inches)
Organic fibers: derived primarily from herbaceous plants
Woody fragment content: averages less than 15 percent by volume in the control section
Reaction: ultra acid or extremely acid

Surface tier:
Hue: 5YR to 10YR
Value: 2 to 4
Chroma: 1 to 4
Organic material: the upper part is peat (fibric material) and the lower part is predominantly muck (sapric material)

Subsurface and bottom tiers:
Hue: 5YR to 10YR
Value: 2 to 4
Chroma: 1 to 4
Organic material: predominantly muck (sapric material), but in some pedons mucky peat (hemic material) and peat (fibric material) have a combined thickness of less than 25 cm (10 inches)

COMPETING SERIES: These are the Freetown, Pangborn, and Puckum series. Freetown, Pangborn, and Puckum soils do not have peat (fibric material) in the upper part of the surface tier.

GEOGRAPHIC SETTING: Lumley soils are in closed depressions on lake plains, outwash plains, ground moraines, and end moraines. Slope ranges from 0 to 2 percent. Mean annual precipitation ranges from about 762 to 813 mm (30 to 32 inches). Mean annual temperature ranges from 7.2 to 8.9 degrees C (45 to 48 degrees F). Elevation is 183 to 305 meters (600 to 1000 feet) above mean sea level.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Brethren, Copemish, Kaleva, and Makinen. The Brethren, Copemish, and Kaleva soils are sandy and are on associated uplands. The Makinen soils are in nearby depressions and at the margin of the depressions where the organic deposits are shallower.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Very poorly drained. Depth to the top of a seasonal high water table ranges from 30 cm (1 foot) above the surface to 30 cm (1 foot) below the surface between September and June in normal years. Potential for surface runoff is low or negligible. Saturated hydraulic conductivity is moderately high or high. Permeability is moderately slow to moderately rapid.

USE AND VEGETATION: Most of this soil is in native vegetation. Native trees include tamarack, black spruce, and white pine. Understory vegetation includes leatherleaf, cranberries, sphagnum moss, cotton grass, bog rosemary, blueberries, and pitcher plants.

DISTRIBUTION AND EXTENT: MLRA 96 in northwestern part of the lower peninsula of Michigan. The series is of small extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: AMHERST, MASSACHUSETTS

SERIES ESTABLISHED: Manistee County, Michigan, 2005.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Peat (fibric material): from the surface to a depth of 15 cm (6 inches) (Oi1 and Oi2 horizons).
Muck (sapric material): from a depth of 15 to 203 cm (6 to 80 inches) (Oa1, Oa2, Oa3, Oa4, and Oa5 horizons).

National Cooperative Soil Survey
U.S.A.