LOCATION CLEWISTON FL
Tentative Series
CAP-MVF
12/2019
CLEWISTON SERIES
MLRA(s): 155
MLRA Soil Survey Regional Office (SSRO) Responsible: Auburn, Alabama
Depth Class: Moderatley deep
Drainage Class: Very poorly drained
Saturated Hydraulic Conductivity: High to very high
Index Surface Runoff: Negligible
Parent Material: Marine sandy sediments over limestone bedrock.
Slope: 0 to 1 percent
Elevation: 0.3 to 3 meters (1 to 10 feet)
Mean Annual Air Temperature: 23 degrees C. (74 degrees F.)
Mean Annual Precipitation: 127 centimeters (50 inches)
The Clewiston series consists of moderately deep, very poorly and poorly drained soils that formed in a thin layer of organic material and marine sandy sediments over limestone bedrock. Clewiston soils are on fresh water marshes, swamps, and low broad flats on marine terraces. Slopes range from 0 to 1 percent. Near the type location, the mean annual temperature is about 23 degrees C. (74 degrees F.), and the mean annual precipitation is about 1270 millimeters (50 inches).
TAXONOMIC CLASS: Sandy, siliceous, hyperthermic Histic Humaquepts
TYPICAL PEDON: Clewiston muck in cropland, 0.5 percent slope. (Colors are for moist soil unless otherwise stated).
Oap--0 to 23 centimeters (0 to 9 inches); black (10YR 2/1) muck; about 30 percent fiber unrubbed and about 5 percent fiber rubbed; weak medium angular blocky structure; very friable, soft; many fine roots throughout; moderately acid; clear smooth boundary. [20 to 41 centimeters (8 to 16 inches) thick]
A--23 to 48 centimeters (9 to 19 inches); very dark gray (10YR 3/1) fine sand; weak fine granular; very friable, soft; common fine roots throughout; neutral; gradual wavy boundary. [8 to 25 centimeters (3 to 10 inches) thick]
Cg--48 to 84 centimeters (19 to 33 inches); pale brown (10YR 6/3) fine sand; single grain; loose; about 5 percent gravel by volume; slightly alkaline; abrupt irregular boundary. [23 to 86 centimeters (9 to 34 inches) thick]
2R--84 to 109 centimeters (35 to 45 inches); weakly to strongly cemented rippable limestone bedrock with solution holes.
TYPE LOCATION: Hendry County, Florida; about 5.8 miles southwest of Clewiston; about 3.4 miles west of Secondary Road 835; about 2,535 feet north and 2,210 feet west of the southeast corner of Sec. 8, T. 44 S., R. 34 E.; latitude 26 degrees, 40 minutes, 26.62 seconds N and longitude 80 degrees, 57 seconds, 26.90 seconds W; WSG84.
RANGE IN CHARACTERISTICS:
Solum thickness: 51 to 102 centimeters (20 to 40 inches)
Depth to seasonally high water table: 0 to 15 centimeters (0 to 6 inches)
Soil reaction: Very strongly acid to slightly alkaline
Depth of the organic material: 20 to 41 centimeters (8 to 20 inches)
Depth to bedrock: 51 to 102 centimeters (20 to 40 inches)
Depth to aquic conditions: 0 to 15 centimeters (0 to 6 inches)
Fiber content: Un-Rubbed 10 to 70 percent and rubbed: less than 17 percent
RANGE IN INDIVIDUAL HORIZONS:
Oa horizon:
Color--hue of 5YR, 7.5YR, 10YR, 2.5Y, or neutral, value of 2 to 4, and chroma of 1 to 3
Texture--muck
EC (mmhos/cm)--0 to 4
Exchangeable Sodium--0 to 5 percent
Sodium Absorption Ratio--0 to 5 percent
Reaction--very strongly acid to slightly acid
EC (mmhos/cm)--0 to 2
A horizon:
Color--hue of 10YR or neutral, value of 2 to 6, and chroma of 0 to 6
Texture-fine sand or sand
EC (mmhos/cm)--0 to 4
Exchangeable Sodium--0 to 5 percent
Sodium Absorption Ratio--0 to 5 percent
Reaction--strongly acid to neutral
EC (mmhos/cm)--0 to 2
C horizon:
Color--hue of 10YR, value of 4 to 7, and chroma of 1 to 4
Texture-fine sand or sand with finer textures occuring at the contact with bedrock
EC (mmhos/cm)--0 to 4
Exchangeable Sodium--0 to 5 percent
Sodium Absorption Ratio--0 to 5 percent
Reaction--strongly acid to slightly alkaline
EC (mmhos/cm)--0 to 2
Rock fragments: 0 to 14 percent
2R horizon:
Weakly to strongly cemented porous rippable oolitic limestone bedrock.
COMPETING SERIES: This is the
Sanibel series.
Sanibel soils--lack bedrock at depths less than 203 centimeters (80 inches) and are on similar landform positions.
GEOGRAPHIC SETTING:
Landscape: Southern Florida Flatwoods
Landform(s): Talfs and/or dips in fresh water marshes and swamps
Parent material: organic materials formed from remains of hydrophytic herbaceous plant overlying limestone bedrock.
Mean annual air temperature: 25 to 27 degrees C (77 to 78 degrees F)
Mean annual precipitation: 127 to 165 centimeters (50 to 65 inches)
GEOGRAPHICALLY ASSOCIATED SOILS: In addition to the competing
Sanibel soils, these are:
Basinger soils--have weakly defined spodic horizons, lack bedrock at depths less than 203 centimeters (80 inches), and are on slightly higher landform positions.
Dania soils--are composed entirely of sapric materials over limestone, have bedrock at depths less than 51 centimeters (20 inches), and occur on similar landform positions.
Lauderhill soils--are composed entirely of sapric materials over limestone, have bedrock at depths of 51 to 102 centimeters (20 to 40 inches), and occur on similar landform positions.
Margate soils--have mollic epipedons, lack muck at the surface, and occur on slightly higher landform positions.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class: Very poorly drained
Saturated hydraulic conductivity (Ksat): Very high to high
Permeability: Rapid
Surface runoff: Negligible to very slow
Flooding frequency and duration: None
Ponding frequency and duration: Under natural conditions the soil is covered by water (ponded) - very frequently for very long duration for 1 to 5 months.
Hydric Indicators: A2 Histic Epipedon, A3 Black Histic, A6 Organic Bodies, and A8 Muck Presence
USE AND VEGETATION:
Major Uses: Wildlife habitat, rangeland, cropland, pasture, and urban land.
Dominant vegetation: Sawgrass, paspalum, maidencane, and cutthroat grass.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Auburn, Alabama.
DISTRIBUTION AND EXTENT: Southern Florida Flatwoods. This soil is of limited extent
SERIES Proposed: Hendry County, Florida; 2019.
REMARKS: Diagnostic horizons and features in this pedon include:
1. Particle-size control section: 25 to 102 centimeters (10 to 40 inches)
2. Histic epipedon: 0 to 25 centimeters (0 to 10 inches) (Oa horizons)
3. Lithic contact: 84 to 109 centimeters (35 to 45 inches) (2R horizon)
These soils were formerly classified as Typic Psammaquents based on the mineral soil beneath the Histic epipedon. Amendment Notice no. 1 of NSTH now classifies these soils as Inceptisols.
This soil was previously mapped as Plantation. Plantation soils were established in Broward County and is now classified as isohyperthermic. Clewiston is replacing Plantation in the hyperthermic temperature regime.
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: S1983FL051019
OSD User Pedon ID: S1983FL051019
National Cooperative Soil Survey
U.S.A.