LOCATION TAVERNIER FL
Established Series
Rev. GWH-MFV-AMS
12/2025
TAVERNIER SERIES
MLRA(s): 156A
Soil Survey Regional Office (SSRO) Responsible: Alburn, Alabama
Depth Class: 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: -0.3 to 3 meters above mean sea level.
Mean Annual Air Temperature: 24 degrees C (75 degrees F)
Mean Annual Precipitation: 1345 centimeters (53 inches)
TAXONOMIC CLASS: Euic, isohyperthermic, shallow Typic Sulfisaprists
TYPICAL PEDON: Tavernier muck in a tidal mangrove swamp.
Oase--0 to 20 centimeters (0 to 8 inches); very dark grayish brown (10YR 3/2) muck, dark grayish brown (10YR 4/2), dry; 20 percent unrubbed fiber content, 5 percent rubbed; massive; very friable, soft; many fine and common medium roots throughout; about 10 percent limestone gravel; slightly alkaline (pH 7.4); abrupt smooth boundary. [25 to 50 centimeters (10 to 20 inches) thick]
2R--20 centimeters (8 inches); weakly to strongly cemented oolitic limestone bedrock; solution holes up to 102 centimeters (40 inches) or deeper can be filled with sandy and/or loamy material.
TYPE LOCATION: Monroe County, Florida; USGS Card Sound, FL quadrangle.
Latitude-- 25.2862583
Longitude-- -80.2997528
Datum--WGS84
RANGE IN CHARACTERISTICS:
Solum thickness: 25 to 50 centimeters (10 to 20 inches)
Depth to seasonally high-water table: 0 to 15 centimeters (0 to 6 inches)
Soil Reaction: Slightly acid to slightly alkaline throughout (pH 6.1 to 7.8)
Depth of the organic material: 25 to 50 centimeters (10 to 20 inches)
Depth to limestone bedrock: 25 to 50 centimeters (10 to 20 inches)
Rock fragments: 0 to 20 percent limestone gravel
EC (mmhos/cm): 16 to 32 or more
Exchangeable Sodium: 30 to 60 percent or more
Sodium Absorption Ratio: 30 to 60 percent or more
Fiber content: Un-Rubbed: 15 to 50 percent; Rubbed less than 17 percent
Particle-size control section, mineral (weighted averages):
Mineral content: 0 to 10 percent
Oase horizon:
Hue: 5YR, 7.5 YR, 10 YR or Neutral
Value: 1 to 3
Chroma: 1 to 3
Texture: muck or gravelly muck
Rock fragments: 0 to 20 percent
2R horizon: weakly to strongly cemented oolitic limestone bedrock
COMPETING SERIES: There are no completing series.
GEOGRAPHIC SETTING:
Landscape: Lower Coastal Plain
Landform(s): marine marshes, swamps, and low broad tidal flats on the Islands of Key West Islands and/or along the southern coast of the Florida Peninsula
Parent material: well decomposed hydrophytic herbaceous plant remains over oolitic limestone bedrock
Mean annual temperature: 23 to 27 degrees C (73 to 81 degrees F)
Mean annual precipitation: 940 to 1570 millimeters (37 to 62 inches)
Frost-free period: 365 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Cudjoe soils have marly silt loam particle-sized control section, have water tables greater than 15 centimeters (6 inches), and occur on slightly higher positions in the tidal zone where they are frequently flooded.
Islamorada soils have bedrock at depths greater than 51 centimeters (20 inches) and occur on similar landform positions.
KeyLargo soils have bedrock at depths greater than 130 centimeters (51 inches) and occur in similar landform positions.
Keyvaca soils have bedrock at depths of less than 15 centimeters (6 inches), have a loamy-skeleatal particle-sized control section, and occur on slightly higher landform positions.
Keywest soils have stratification of marl and muck materials over oolitic limestone, have bedrock at depths less than 130 centimeters (51 inches), and occur in similar landform positions.
Lignumvitae soils have marly silt loam particle-sized control section, have bedrock at depths greater than 51 centimeters (20 inches) and occur on similar landform positions.
Matecumbe soils have bedrock at depths less than 23 centimeters (9 inches), are not subject to tidal flooding, and occur on slightly higher landform positions.
Saddlebunch soils have marly silt loam particle-sized control section and occur on slightly higher 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 frequently and brief duration, subject to flooding from storm surges and hurricanes
USE AND VEGETATION:
Major uses: wildlife habitat and water quality.
Dominant vegetation: red mangroves, black mangroves, and saltwort.
DISTRIBUTION AND EXTENT: MLRA 156S Florida Everglades and Associated Areas.
Extent: limited
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Auburn, Alabama
SERIES ESTABLISHED: Monroe County, Florida, 1989.
REMARKS: Diagnostic horizons and features recognized in this Pedon:
1. Particle-size control section: 25 to 50 centimeters (10 to 20 inches)
2. Histic epipedon 0 to 20 centimeters (0 to 8 inches) (Oa horizon)
3. Lithic contact - 20 to 46 centimeters (8 to 18 inches) (2R horizon)
4. Hydric Indicator A1 Histosols, A3 Black Histic, A8 Muck Presence, and A12 Thick Dark Surface
5. Sulfidic materials to meet classification.
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: S1987FL087001
OSD User Pedon ID: S1987FL087001
National Cooperative Soil Survey
U.S.A.