LOCATION MATECUMBE FL
Established Series
Rev. GWH/CAP/RBT
03/2021
MATECUMBE SERIES
MLRA(s): 156A
Soil Survey Regional Office (SSRO) Responsible: Auburn, Alabama
Depth Class: Very shallow
Drainage Class: Very poorly drained
Saturated Hydraulic Conductivity: High to very high in the organic material and negligible in the rock material
Index Surface Runoff: Medium
Parent Material: Organic materials over oolitic limestone bedrock
Slope: 0 to 1 percent
Elevation: -1.0 to 3 feet above mean sea level.
Mean Annual Air Temperature: 26 degrees C. (78 degrees F.)
Mean Annual Precipitation: 1270 centimeters (50 inches)
TAXONOMIC CLASS: Euic, isohyperthermic, micro Typic Sulfisaprists
TYPICAL PEDON: Matecumbe muck in a marine mangrove swamp. (Colors are for moist soil unless otherwise stated.)
Oase--0 to 15 centimeters (0 to 6 inches); black (10YR 2/1) muck, dark gray (10YR 4/1), dry; 15 percent unrubbed fiber, 5 percent rubbed fiber; 5 percent by weight of sandy and loamy material; slight sulfurous odor; many fine and medium live roots; 10 percent limestone gravel; neutral (pH 7.0); abrupt wavy boundary. [5 to 18 centimeters (2 to 7 inches) thick]
2R--15 centimeters (6 inches); weakly to strongly cemented oolitic limestone bedrock; solution holes up to 102 centimeters (40 inches) or more deep can be filled with sandy and/or marly material.
TYPE LOCATION: Monroe County, Florida; Key Largo; 164 feet northeast of the intersection of Highways 905 and 905A at about 54 degrees; 916 feet west and 801 feet north of the southeast corner of Sec. 23, T. 59 S., R. 40 E.; latitude 25 degrees 17 minutes 10.71 seconds N longitude 80 degrees 18 minutes 13.58 seconds W; WSG84; USGS Card Sound, FL quadrangle.
RANGE IN CHARACTERISTICS:
Solum thickness: 5 to 18 centimeters (2 to 7 inches)
Depth to seasonally high water table: 0 to 15 centimeters (0 to 6 inches)
Soil Reaction: Slightly acid to slightly alkaline throughout
Sulfurous odor: Slight to strong throughout
Depth of the organic material: 5 to 18 centimeters (2 to 7 inches)
Depth to limestone bedrock: 5 to 18 centimeters (2 to 7 inches)
Fiber content: Un-Rubbed: 5 to 50 percent; rubbed less than 17 percent
Particle-size control section, mineral (weighted averages):
Clay content: 0 to 8 percent
Fine sand content: 0 to 20 percent
Range of Individual Horizons:
Oase horizon:
Color: hue: 5YR to 10YR or Neutral, value of 3 or less, and chroma of 1 or 2
Texture: muck, mucky peat, or gravelly muck with less than 20 percent mineral content
Rock fragments: 5 to 34 percent
EC (mmhos/cm): 4 to 32 or more
Exchangeable Sodium: 5 to 40 percent or more
Sodium Absorption Ratio: 5 to 40 percent or more
2R horizon: weakly to strongly cemented oolitic limestone bedrock, with solution holes filled with sandy and/or marly materials. Solution holes can be up to 102 centimeters (40 inches) or more deep.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING:
Landscape: Lower Coastal Plain
Landform(s): marine marshes, swamps, or low broad flats on the Key West Islands and/or along the southern coast of the Florida Peninsula
Parent material: Well decomposed organic materials over oolitic limestone bedrock
Mean annual temperature: 25 to 27 degrees C (77 to 81 degrees F)
Mean annual precipitation: 1067 to 1778 millimeters (42 to 70 inches)
Frost-free period: 365 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Cudjoe soils have marly silt loam particle-sized control section, have bedrock at depths greater than 24 centimeters (9 inches), and occur on slightly higher landform positions.
Islamorada soils have bedrock at depths of 50 to 100 centimeters and occur on similar landform positions.
Keylargo soils have bedrock at depths greater than 150 centimeters and occur on similar landform positions.
Keyvaca soils have bedrock at depths of less than 24 centimeters, have a loamy-skeletal particle-sized control section, and occur on slightly higher landform positions.
Keywest soils have stratification of marl and muck materials over oolitic limestone bedrock at 100 to 150 centimeters and occur on similar landform positions.
Lignumvitae soils have marly silt loam particle-sized control section, have bedrock at 50 to 100 centimeters and occur on similar landform positions.
Saddlebunch soils have marly silt loam particle-sized control section, have bedrock at depths greater than 24 centimeters and occur on slightly higher landform positions.
Tavernier soils have bedrock at depths of 18 to 50 centimeters and occur on similar landform positions.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class: Very poorly drained
Saturated hydraulic conductivity (KSAT): High to very high
Runoff: Medium
Depth to seasonal high-water table: 0 to 15 centimeters (0 to 6 inches)
Flooding frequency and duration: very frequent and very brief duration from tides, subject to flooding by storm surge and hurricanes
USE AND VEGETATION:
Major uses: wildlife habitat and water quality.
Dominant vegetation: wild tamarind, mahogany, poison wood, wild coffee, crabwood, strangler fig, thatch palm, and paradise tree.
DISTRIBUTION AND EXTENT: MLRA 156A Florida Everglades and Associated Areas.
Extent: limited
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Auburn, Alabama
SERIES ESTABLISHED: Monroe County, Florida, 1989.
REMARKS:
These soils were formerly classified as Lithic Udifolists and are revised here to the twelfth edition of the keys (2014).
Diagnostic horizons and features recognized in this Pedon:
1. Lithic (micro) contact - 15 centimeters (6 inches) (2R horizon)
2. Peraquic feature - the zone from 0 to 203 centimeters (0 to 80 inches).
3. Aquic conditions - endosaturation ranges from 0 to 203 centimeters (0 to 80 inches).
4. Sulfidic feature - the zone from 0 to 15 centimeters (0 to 6 inches) contains sulfidic soil materials.
These soils maybe be mapped in out of place landform positions and need to be investigated in future updates (formerly recognized as a moderately well drained soil).
ADDITIONAL DATA:
Laboratory data is available on the National Soil Survey website at: http://ncsslabdatamart.sc.egov.usda.gov/querypage.aspx
OSD User Site ID: S1987FL087002
OSD User Pedon ID: S1987FL087002
National Cooperative Soil Survey
U.S.A.