LOCATION MARLAKE NE+SDEstablished Series
TAXONOMIC CLASS: Mixed, mesic Mollic Psammaquents
TYPICAL PEDON: Marlake mucky peat on a concave slope of less than 1 percent with marsh vegetation. When described the soil was moist to 9 inches and wet below. (Colors are for moist soil unless other wise stated.)
Oe--0 to 5 centimeters (0 to 2 inches): very dark brown (10YR2/2) mucky peat, dark grayish brown (10YR 4/2) dry; neutral; neutral; abrupt smooth boundary. [0 to 38 centimeters (0 to 15 inches) thick]
A--5 to 23 centimeters (2 to 9 inches); very dark gray (10YR 3/1) fine sandy loam, gray (10YR 5/1) dry; weak fine and medium granular structure; soft, very friable; many fine and very fine roots throughout; few fine snail shells and snail shell fragments throughout; strong effervescence; moderately alkaline; abrupt smooth boundary. [15 to 23 centimeters (6 to 9 inches) thick]
ACg--23 to 41 centimeters (9 to 16 inches); very dark gray (10YR 3/1) loamy fine sand, gray (10YR 5/1) dry; stratified with olive gray (5Y 5/2) sand, light olive gray (5Y 6/2) dry; common medium distinct olive (5Y 4/4) moist and light olive brown (2.5Y 5/6) moist iron masses in the matrix; weak medium and coarse subangular blocky structure; soft, very friable; common fine and very fine roots throughout; slight effervescence; slightly alkaline; clear smooth boundary. [0 to 38 centimeters (0 to 15 inches) thick]
Cg--41 to 200 centimeters (16 to 79 inches); gray (5Y 6/1) sand, dark gray (5Y 4/1) moist; many fine faint olive (5Y 5/3) moist iron depletions in the matrix; single grain; loose; few fine and very fine roots throughout matrix above 91 centimeters (36 inches); neutral.
TYPE LOCATION: Cherry County, Nebraska; 1.6 kilometer (1 mile) west and 2.4 kilometers (1.5 miles) north of Cody; 427 meters (1400 feet) west and 198 meters (650 feet) north of the southeast corner, sec. 36, T. 35 N., R. 34 W. Eli topographic quadrangle; latitude. 42 degrees, 57 minutes, 39 seconds North and longitude 101 degrees, 15 minutes, 50 seconds West
RANGE IN CHARACTERISTICS:
Moisture regime: aquic
Depth to redoximorphic features: 0 to 30 centimeters (0 to 12 inches)
Endosaturation depth: 0 to 30 centimeters (0 to 12 inches)
Carbonates: can be at depths of 0 to 61 centimeters (0 to 24 inches) or not present
Thickness of the mollic colors: 15 to 23 centimeters (6 to 9 inches)
Particle-size control section (weighted average):
Sand content, 78 to 99 percent
Clay content: 0 to 10 percent
O horizon:
Hue: 7.5YR or 10YR
Value: 4 to 6, 2 or 3 moist
Chroma: 1 to 3
Texture: mucky peat, muck, peat
Reaction: moderately acid to moderately alkaline
A horizon:
Hue: 10YR, 2.5Y
Value: 4 or 5, 2 or 3 moist
Chroma: 1 or 2
Texture: fine sandy loam, loamy fine sand, loamy sand, very fine sandy loam, loam, mucky fine sandy loam, mucky loam
Reaction: slightly acid to moderately alkaline
ACg horizon:
Hue: 10YR, 2.5Y, 5Y
Value: 3 to 7, 2 to 6 moist
Chroma: 1 or 2
Texture: loamy fine sand, sand, fine sand, loamy sand, fine sandy loam
Mineral and organic layers can occur as strata, 1 to 5 centimeters (less than inch layer to 5 inches) thick
Reaction: slightly acid to moderately alkaline
Cg horizon:
Hue: 10YR, 2.5Y, 5Y, 5GY
Value: 4 to 7, 3 to 6 moist
Chroma: 1 or 2
Texture: sand, fine sand, loamy sand, loamy fine sand
Some pedons have thin darker colored and/or finer textured mineral and organic layers at depths of 25 to 200 centimeters (10 to 79 inches).
Some pedons have loamy substratums of silt loam, sandy clay, clay loam or silty clay loam.
Reaction: slightly acid to moderately alkaline
COMPETING SERIES: These are the
Glendora,
Kanza,
Kingsville,
Pay,
Plev,
Tobico, and
Vestaburg series.
All of these soils are saturated to the surface for shorter periods during the growing season.
Glendora soils have a higher mean annual precipitation and are on frequently flooded flood plains.
Kanza soils have a higher mean annual air temperature and are on floodplains.
Kingsville soils have a higher mean annual precipitation, typically contain up to 10 percent rock fragments in the substratum having formed in glaciolacustrine sediments.
Pay soils typically contain up to 15 percent rock fragments in the substratum having formed in alluvium from igneous rocks and are on occasionally flooded floodplains.
Plev soils have a higher mean annual temperature and are on paleo-terraces in river valleys.
Tobico soils have a higher mean annual precipitation and typically contain up to 25 percent rock fragments in the substratum having formed in sandy materials on outwash plains and lake benches
Vestaburg soils have a higher mean annual precipitation and contain 10 to 50 percent rock fragments in the substratum having formed in sandy deposits on outwash plains and outwash valley trains.
GEOGRAPHIC SETTING:
Parent material: sandy eolian deposits
Landscape: sandhills
Landform: depression on interdune
Slope: 0 to 1 percent
Elevation: 610 to 1066 meters (2000 to 3500 feet)
Mean annual precipitation: 41 to 64 centimeters (16 to 25 inches)
Mean annual air temperature: 8 to 10 degrees C. (46 to 50 degrees F.)
Frost Free Days: 120 to 150
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Els,
Ipage,
Tryon, and
Valentine soils.
Els soils are higher on swales on interdunes and are somewhat poorly drained having a seasonal zone of saturation or aquic conditions beginning at 46 centimeters (18 inches).
Ipage soils are higher on swales and hummocks on interdunes, lack mollic epipedons, and are moderately well drained having a seasonal zone of saturation or aquic conditions beginning at 91 centimeters (36 inches).
Tryon soils are slightly higher on swales on interdunes and are poorly and very poorly drained having a seasonal zone of saturation or aquic conditions beginning at the surface.
Valentine soils are on higher hummocks and dunes and are excessively drained having no seasonal zone of saturation or aquic conditions.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: very poorly
Runoff: negligible
Saturated hydraulic conductivity: very high
Ponding frequency: frequent
Ponding duration: very long with a depth of up to 61centimeters (24 inches)
USE AND VEGETATION: These soils are used mostly as habitat for wildlife and grazing. Vegetation consists mainly of sedges, rushes, cattails, reeds, and other aquatic plants. Grasses such as prairie cordgrass, common reedgrass, and reedcanary grass are common on the outer margins. No ecological site is assigned.
DISTRIBUTION AND EXTENT: Nearly all in and near the Sandhills of Nebraska and South Dakota (LRR G, MLRA 65). The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Keya Paha County, Nebraska, 1977.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Aquic soil conditions: 23 to 200 centimeters (9 to 79 inches) (ACg and Cg horizons)
The Marlake series were classified as a miscellaneous land type (Marsh) in older surveys. Strata and buried layers are from wind deposition or organic accumulation representing drought and wet climatic periods of time rather than recent flooding.
LRM in 10/2005: metric conversion and changed permeability to saturated hydraulic conductivity
RRH, 5/2007: Introductory paragraph: revised parent material, landform, landscape; Typical Pedon: revised introductory paragraph and reversed moist and dry colors in each horizon, revised slightly to match original pedon description; Range in Characteristics: added O horizon ranges, A horizon: texture: added mucky loam and mucky fine sandy loam, revised reaction for all horizons; Competing Series: revised; Geographic Setting: revised; Geographically Associated Soils: deleted Elsmere, Gannett, Loup, Ord and Valent. Drainage and Saturated Hydraulic Conductivity through Distribution and Extent: revised; Additional Data: added
ADDITIONAL DATA: Data is available from the National Soil Survey Center, Soil Survey Laboratory for Pedon ID 75NE089001. Pedon ID 84NE031022 represents the Typical Pedon and is in NASIS.