LOCATION OKALOACOOCHEE FL

Established Series
Rev. CAP-MVF-AMS
11/2023

OKALOACOOCHEE SERIES

MLRA(s): 156A
Soil Survey Regional Office (SSRO) Responsible: Auburn Alabama
Depth Class: Very deep
Drainage Class: Very poorly drained
Saturated Hydraulic Conductivity: High to very high
Index Surface Runoff: Negligible to very low
Parent Material: Herbaceous organic material over sandy marine sediments
Slope: 0 to 1 percent
Elevation: 0 to 3 feet above mean sea level.
Mean Annual Air Temperature: 25 degrees C (77 degrees F.)
Mean Annual Precipitation: 1397 millimeters (55 inches)

TAXONOMIC CLASS: Loamy, siliceous, euic, isohyperthermic Terric Sulfisaprists

TYPICAL PEDON: Okaloacoochee muck--tidal marsh (Colors are for moist soil).

Oan1--0 to 10 centimeters (0 to 4 inches); black (10YR 2/1), very dark gray (10YR 3/1), dry; muck; unrubbed fiber 35 percent, rubbed 3 percent; massive; soft, very friable, nonsticky, nonplastic; nonfluid; many fine roots throughout and common medium roots throughout and few coarse roots throughout; EC 40.2 dSm; slightly acid (pH 6.2); clear smooth boundary.

Oan2--10 to 36 centimeters (4 to 14 inches); black (10YR 2/1), very dark gray (10YR 3/1), dry; muck; unrubbed fiber 40 percent, rubbed 3 percent; massive; soft, very friable, nonsticky, nonplastic; nonfluid; many fine roots and common medium roots and few coarse roots throughout; EC 59.4 dSm; very strongly acid (pH 4.7); clear smooth boundary. [Combined thickness of the Oan1 and Oan2 horizons: 25 to 76 centimeters (10 to 30 inches) thick]

Oan3--36 to 91 centimeters (14 to 36 inches); black (10YR 2/1), very dark gray (10YR 3/1), dry; muck; unrubbed fiber 25 percent, rubbed 2 percent; massive; soft, very friable, nonsticky, nonplastic; nonfluid; many fine roots and common medium roots and few coarse roots throughout; 61.0 dSm; extremely acid (pH 3.7); clear smooth boundary.

Oan4--91 to 163 centimeters (36 to 64 inches); black (10YR 2/1), very dark gray (10YR 3/1), dry; muck; unrubbed fiber 30 percent, rubbed 2 percent; massive; soft, very friable, nonsticky, nonplastic; nonfluid; EC 72.6 dSm; ultra acid (pH 2.0); clear wavy boundary. [Combined thickness of the Oan3 and Oan4 horizons: 51 to 165 centimeters (20 to 65 inches) thick]

Cgn--163 to 203 centimeters (64 to 80 inches); very dark gray (10YR 3/1), dark gray (10YR 4/1), dry; fine sand; 3 percent clay; massive; loose, very friable, nonsticky, nonplastic; nonfluid; EC 72.6 dSm; ultra acid (pH 2.0).

TYPE LOCATION: Lee County, Florida; about 0.46 mile north of Bonita Beach Road SW and 0.45 miles east of Hickory Blvd; about 1545 feet west and 2400 feet north of the southeast corner of sec. 31, T. 47 S., R. 25 E. Latitude 26 degrees 20 minutes 13.24 seconds Longitude 81 degrees 50 minutes 25.21 seconds; USGS Bonita Springs FL.

RANGE IN CHARACTERISTICS:
Solum thickness range: 150 to 203 centimeters (60 to 80 inches)
Aquic conditions: 0 to 15 centimeters (0 to 6 inches)
Depth to marine sediments: 130 to 178 centimeters (51 to 70 inches)
Depth to endosaturation: 0 to 203 centimeters (0 to 80 inches)
Reaction: ultra acid to neutral (pH <3.5 to 7.3) in the Oan horizons
Reaction: extremely acid to moderately alkaline (pH 3.5 to 8.4) in the Cgn horizons
EC (mmhos/cm): greater than 32
Exchangeable Sodiuum: greater than 30 throughout
Sodium Absorption Ratio: greater than 30 throughout
Sulfur content: 0.75 to 3.25 percent in the Oa horizons

Oan horizons:
Hue: 5YR, 7.5YR, or 10YR
Value: 2 or 3
Chroma: 1 or 2
Texture: muck
Some horizons have 0 to 25 percent mineral content.

Cgn or Ckgn horizon:
Hue: 10YR, 2.5Y, 5Y, or Neutral
Value: 4 to 7
Chroma: 1 or 2
Texture: Fine sand, sand, loamy fine sand, or loamy sand
Clay content: 0 to 7 percent
Fragments: 0 to 30 percent shells

COMPETING SERIES: This is the Chickee series.
Chickee soils have mineral soil materials at 91 to 130 centimeters (36 to 51 inches) of the surface and occur on similar landform positions.

GEOGRAPHIC SETTING:
Parent material: Herbaceous organic material over sandy marine sediments
Landscape: Lower Coastal Plains, Atlantic and Gulf Coast
Landform: Low tidal marshes and swamps
Mean annual temperature: 25 to 27 degrees C (77 to 81 degrees F)
Mean annual precipitation: 1143 to 1524 millimeters (45 to 60 inches)

GEOGRAPHICALLY ASSOCIATED SOILS:
Crandon Beach soils, are calcareous throughout, have a sapric horizon about 15 centimeters (6 inches) thick. The subsurface layer dark gray to grayish brown fine sand about 188 centimeters (74 inches) thick.
Trout Cove soils have limnic materials about 109 centimeters (43 inches) thick. At depth of 109 centimeters (43 inches) is a layer of fractured limestone. Depth to limestone presence can range from 100 to 150 centimeters (40 to 60 inches).
Perrine soils consists of limnic soil materials and limestone rock at 50 to 100 centimeters (20 to 40 inches).

DRAINAGE AND PERMEABILITY:
Drainage class: Very poorly drained
Saturated hydraulic conductivity (KSAT): high to very high
Permeability: rapid
Surface Runoff: negligible to very low
Surface Water: can range from 15 to 122 centimeters (6 to 48 inches) during the raining season (June to November). During the months of December and January surface water can range from 15 to 91 centimeters (6 to 36 inches). During the dry season February to May surface water ranges from 15 to 76 centimeters (6 to 30 inches).
Flooding, tidal: surface water ranges from 0 to 122 centimeters (0 to 48 inches)

USE AND VEGETATION:
Major uses: water quality and wildlife habitat.
Dominant vegetation: Forested areas may include but are not limited to red mangrove (Rhizophora mangle), black mangrove (Avicennia germinans), white mangrove (Laguncularia racemosa) and button mangrove (Conocarpus erectus). Non-Forested areas may include but are not limited to various species of cordgrass (Spartina spp.), needlegrass rush (Juncus roemerianus), salt grass (Distichlis spicata), and various flowering forbs. Changes in salinity (ppt) is often the main driver between different major zones of vegetative species in both forested and non-forested areas.

DISTRIBUTION AND EXTENT: Everglades and Associated Areas (MLRA 156A)
Extent: limited

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Auburn, Alabama.

SERIES ESTABLISHED: Collier County, Florida, 2023.

REMARKS: Diagnostic horizons and features in this pedon are:

1. Histic epipedon - 0 to 163 centimeters (0 to 64 inches) (Oan1, Oan2, Oan3, Oan4 horizons)
2. Mineral soil material contact - 163 to 203 centimeters (64 to 80 inches) (Cgn horizon)
3. Sulfur presence - 0 to 163 centimeters (0 to 64 inches) (Oan1, Oan2, Oan3, Oan4 horizons)
4. Aquic conditions - 0 to 15 centimeters (0 to 6 inches)
5. Endosaturation - 0 to 203 centimeters (0 to 80 inches)
6. Tidal flooding daily by normal high tides.

This series was formerly mapped as tidal marsh and/or Durbin and still inside of the Hyperthermic zone. Temperature regime changes required a new soil series for the isohyperthermic area in MLRA 156A.

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: S2016FL071001

OSD Pedon Site ID: S2016FL071001

National Cooperative Soil Survey
U.S.A.