LOCATION OLDSMAR FL
Established Series
Rev. AGH-CAP-AMS
05/2018
OLDSMAR SERIES
The Oldsmar series consists of very deep, poorly drained and very poorly drained soils that formed in sandy marine sediments overlying loamy materials. Oldsmar soils are on flatwoods, low broad flats, and depressions on marine terraces. Slopes are linear to concave and range from 0 to 2 percent. The mean annual precipitation is about 1397 millimeters (55 inches) and the mean annual temperature is about 23 degrees C. (72 degrees F).
TAXONOMIC CLASS: Sandy, siliceous, hyperthermic Alfic Arenic Alaquods
TYPICAL PEDON: Oldsmar sand, in a citrus grove at an elevation of about 6.4 meters (21 feet) above mean sea level. (Colors are for moist soil).
A--0 to 15 centimeters (0 to 6 inches); very dark gray (10YR 3/1) sand; weak fine granular structure; very friable; many fine roots, common medium roots; strongly acid; clear smooth boundary. [8 to 20 centimeters (3 to 8 inches) thick]
E1--15 to 81 centimeters (6 to 32 inches); light gray (10YR 7/1) sand; single grain; loose; common medium roots; strongly acid; clear wavy boundary.
E2--81 to 97 centimeters (32 to 38 inches); grayish brown (10YR 5/2) sand; single grain; loose; common medium distinct very dark grayish brown (10YR 3/2) organic bodies; very strongly acid; clear wavy boundary. [Combined thickness of the E horizons ranges from 68 to 102 centimeters (27 to 40 inches) thick]
Bh1--97 to 102 centimeters (38 to 40 inches); black (10YR 2/1) sand; single grain; loose; sand grains are well coated with organic matter; very strongly acid; clear wavy boundary.
Bh2--102 to 127 centimeters (40 to 50 inches); dark reddish brown (5YR 3/2) sand; single grain; loose; very strongly acid; clear wavy boundary. [Combined thickness of the Bh horizons ranges from 15 to 46 centimeters (6 to 18 inches) thick]
Btg1--127 to 178 centimeters (50 to 70 inches); dark grayish brown (10YR 4/2) sandy clay loam; massive in place, parts to weak fine subangular blocky structure; friable; sand grains are coated and bridged with clay; slightly acid; clear wavy boundary.
Btg2--178 to 203 centimeters (70 to 80 inches); olive gray (5Y 5/2) sandy clay loam; massive in place, parts to weak fine subangular blocky structure; friable; sand grains are coated and bridged with clay; common medium distinct grayish brown (10YR 5/2) areas of iron depletions; slightly alkaline.
TYPE LOCATION: Hendry County, Florida; approximately 0.65 kilometers (0.40 miles) north of Florida State Highway 80 and 0.16 kilometers (0.1 miles) west of Florida Highway 78A; about 195 meters (640 feet) south and 160 meters (520 feet) west of the northeast corner of Sec. 28, T. 43 S., R. 28 E.; Latitude and Longitude; 26 degrees 42 minutes 56.46 seconds, north and 81 degrees 31 minutes 10.63 seconds, west; WGS84.
RANGE IN CHARACTERISTICS:
Soil moisture control section: 30 to 90 centimeters (12 to 36 inches)
Solum thickness range: 152 to 203 centimeters (60 to 80 inches) or more
Aquic conditions: 0 to 30 centimeters (0 to 12 inches)
Ochric epipedon: 75 to 125 centimeters (29 to 49 inches)
Depth to albic horizon: 8 to 20 centimeters (3 to 8 inches)
Depth to spodic horizon: 76 to 122 centimeters (30 to 48 inches)
Depth to argillic horizon: 89 to 168 centimeters (35 to 66 inches)
Depth to endosaturation: 0 to 46 centimeters (0 to 18 inches)
Particle-size control section (weighted averages):
Clay content: 0 to 12 percent
Fine sand content: 30 to 75 percent
A or Ap horizon:
Hue: 10YR or Neutral
Value: 2 to 4
Chroma: 0 or 2
Texture: fine sand or sand
Clay content: 0 to 7 percent
Rock fragments: 0
Reaction: extremely acid to neutral (pH 3.5 to 7.3)
EC (mmhos/cm): 0 to 2
E or Eg horizon:
Hue: 10YR, 2.5Y, or Neutral
Value: 5 to 8
Chroma: 1 or 2
Texture: fine sand or sand
Clay content: 0 to 6 percent
Rock fragments: 0
Reaction: extremely acid to neutral (pH 3.5 to 7.3)
EC (mmhos/cm): 0 to 2
Redoximorphic features: depletions or concentrations, 1 to 20 percent, and fine or medium in size
Transitional horizon 0.5 to 2 inches thick may occur.
Bh horizon:
Hue: 5YR, 7.5YR, 10YR or Neutral
Value: 2 to 4
Chroma: 1 to 3
Texture: fine sand, sand, loamy fine sand, or loamy sand
Coated sand grains: most are coated with organic material.
Clay content: 2 to 12 percent
Rock fragments: 0
Reaction: extremely acid to neutral (pH 3.5 to 7.3)
EC (mmhos/cm): 0 to 2
Some pedons contain tonguing of E horizon material.
Bw horizon, where present:
Hue: 7.5YR or 10YR
Value: 3 or 4
Chroma: 2 to 5
Texture: fine sand, sand, loamy fine sand, or loamy sand
Spodic fragments: 1 to 20 percent and fine or medium in size
Clay content: 2 to 12 percent
Rock fragments: 0
Reaction: extremely acid to neutral (pH 3.5 to 7.3)
EC (mmhos/cm): 0 to 2
Btg horizons:
Hue: 10YR, 2.5Y, 5Y, 10Y, 5GY, or Neutral
Value: 4 to 7
Chroma: 1 to 4
Texture: fine sandy loam, sandy loam, or sandy clay loam
Redoximorphic features: depletions or concentrations, 1 to 50 percent, and fine or medium in size
Clay content: 10 to 35 percent
Rock fragments: 0
Reaction: strongly acid to strongly alkaline (pH 5.1 to 9.0)
EC (mmhos/cm): 0 to 2
In some pedons, the lower Bt horizon has accumulations of secondary carbonates. A weakly expressed E' may be present between the Bt and Bh horizon in some pedons.
C or Cg horizons, where present:
Hue: 10YR, 2.5Y, 5Y, 10Y, 5GY, or Neutral
Value: 4 to 7
Chroma: 1 to 4
Texture: fine sand or sand
Clay content: 0 to 8 percent
Rock fragments: 0
Reaction: strongly acid to strongly alkaline (pH 5.1 to 9.0)
EC (mmhos/cm): 0 to 2
Some pedons have an underlying limestone substratum.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING:
Parent material: sandy marine sediments overlying loamy materials
Landscape: Lower Coastal Plain
Landform: flatwoods, low board flats, and depressions on marine terraces
Slopes: 0 to 2 percent
Elevation: 0 to 40 meters (0 to 130 feet)
Mean annual temperature: 20 to 25 degrees C (68 to 77 degrees F)
Mean annual precipitation: 1118 to 1626 millimeters (44 to 64 inches)
Frost-free period: 335 to 365 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Astor and
Pompano soils lack spodic horizons, argillic horizons, and are on similar landform positions.
Bradenton and
Felda soils lack spodic horizons and are on similar landform positions.
EauGallie,
Pomona,
Wabasso and
Wauchula soils have a spodic horizon within a depth of 76 centimeters (30 inches), and Wabasso and Wauchula have an argillic horizon within depths of 66 to 102 centimeters (26 to 40 inches) and are on similar landform positions.
Electra soils have seasonal high water tables deeper than 46 centimeters (18 inches) during the growing season and are on similar to slightly higher landform positions.
Immokalee soils lack argillic horizons and are on similar landform positions.
Myakka and
Ona soils lack argillic horizons, have spodic horizons within a depth of 76 centimeters (30 inches) and are on similar landform positions.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class: Very poorly and poorly drained.
Saturated hydraulic conductivity (KSAT): very high or high in the A and E horizons, moderately high and high in the Bh horizon, and low and moderately low in the Btg horizon.
Permeability: rapid or very rapid in the A and E horizons, moderate or moderately rapid permeability in the Bh horizon, and very slow and slow in the Btg horizon.
Runoff: negligible to very high
Depth to seasonal high water table: 0 to 30 centimeters (0 to 12 inches) of the surface from 1 to 6 months during most years, 30 to 107 centimeters (12 to 42 inches) for the remainder of the year, and it is below 152 centimeters (60 inches) during extended dry periods.
Ponding: 0 to 61 centimeters (0 to 24 inches) in depressional areas for 6 to 9 months or more each year.
USE AND VEGETATION:
Under natural conditions Oldsmar soils are used for water quality, forestry, and wildlife habitat, some areas are used for citrus, truck crops, pastureland, range, and urban.
Potential native vegetation consists of cabbage palmetto, sawpalmetto, live oak, slash pine, with an undergrowth of laurel, wax myrtle, and pineland threeawn. In depressions the trees are cypress, blackgum, pond pine, loblolly bay, red maple, and sweetbay. Other plants included maidencane, blue maidencane, chalky bluestem, sand cordgrass, and bluejoint panicum.
DISTRIBUTION AND EXTENT:
Major Land Resource Area (MLRA): Southern Florida Flatwoods (MLRA 155), South Central Florida Ridge (MLRA 154), Southern Florida Lowlands (MLRA 156B), Everglades and Associated Areas (MLRA 156A)
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama.
SERIES ESTABLISHED:
Brevard County, Florida; 1970.
REMARKS:
Particle size control section: 127 to 157 centimeters (50 to 62 inches)
Diagnostic horizons and features recognized in this pedon:
Ochric epipedon - 0 to 97 centimeters (0 to 38 inches) (A, E1, and E2)
Albic horizon - 15 to 97 centimeters (6 to 38 inches) (E1 and E2 horizons)
Spodic horizon - 97 to 127 centimeters (38 to 50 inches) (Bh1 and Bh2 horizons)
Argillic horizon - 127 to 203 centimeters (50 to 80 inches) (Btg1 and Btg2 horizons)
Aquic conditions - 0 to 30 centimeters (0 to 12 inches)
Endosaturation - 0 to 203 centimeters (0 to 80 inches)
Soil classified according to the 12th Edition of the Keys to Soil Taxonomy.
Oldsmar soils were formerly included in the Immokalee series.
Reaction with pH greater than 8.4 may cause saline/sodic properties which could possibly change classification. These soils need to be investigated for taxonomic changes.
Depressional map units need to be investigated for interpretive differences.
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: 1986FL051002
OSD Pedon Site ID: 1986FL051002
National Cooperative Soil Survey
U.S.A.