LOCATION POMELLO FL
Established Series
Rev. SHM-CAP-AMS
11/2017
POMELLO SERIES
The Pomello series consists of very deep, moderately well to somewhat poorly drained soils that formed in sandy marine sediments. Pomello soils are on ridges, hills, and knolls in the flatwoods on marine terraces. Slopes range from 0 to 5 percent. Mean annual precipitation is about 1397 millimeters (55 inches) and mean annual temperature is about 23 degrees C (72 degrees F).
TAXONOMIC CLASS: Sandy, siliceous, hyperthermic Oxyaquic Alorthods
TYPICAL PEDON: Pomello fine sand--rangeland. (Colors are for moist soil).
A--0 to 10 centimeters (0 to 4 inches); gray (10YR 6/1) fine sand; weak fine granular structure; very friable; many fine and medium roots; very strongly acid; clear wavy boundary. [3 to 15 centimeters (1 to 6 inches) thick]
E--10 to 107 centimeters (4 to 42 inches); white (10YR 8/1) fine sand; single grain; loose; common fine and medium roots; few coarse roots; few strata of dark gray in root channels; very strongly acid; abrupt wavy boundary. [66 to 142 centimeters (26 to 56 inches) thick]
Bh1--107 to 119 centimeters (42 to 47 inches); dark reddish brown (5YR 2/2) black (5YR 2/1), and dark reddish brown (2.5YR 3/4) fine sand; weakly cemented; massive; friable; common fine and medium roots; sand grains are located with organic matter; very strongly acid; clear wavy boundary.
Bh2--119 to 137 centimeters (47 to 54 inches); dark reddish brown (5YR 3/3) fine sand; few coarse faint dark brown (7.5YR 3/2) masses of organic bodies; massive; friable; few medium roots; sand grains are coated with organic matter; very strongly acid; clear wavy boundary. [Combined thickness of the Bh horizon ranges from 15 to 89 centimeters (6 to 35 inches)]
Bw--137 to 168 centimeters (54 to 66 inches); brown (10YR 4/3) fine sand; common medium faint dark brown (7.5YR 3/2) masses of dark brown (10YR 3/3) organic matter bodies; single grain; loose; very strongly acid. [0 to 76 centimeters thick (0 to 30 inches) thick)]
Cg--168 to 203 centimeters (66 to 80 inches); light gray (10YR 7/2) sand; single grain, loose; very strongly acid.
TYPE LOCATION: Okeechobee County, Florida. Approximately 2.5 miles west of U. S. Highway 441 on C.R. 68 and 200 feet north of southwest corner of sec. 29, T. 35 S., R. 35 E. Lat. 27 degrees 23 minutes 28.41 seconds north Long. 80 degrees 51 minutes 32.97 seconds west, WGS84.
RANGE IN CHARACTERISTICS:
Ochric epipedon thickness: 79 to 157 centimeters (31 to 62 inches)
Depth to albic horizon: 3 to 15 centimeters (1 to 6 inches)
Depth to spodic horizon: 79 to 157 centimeters (31 to 62 inches)
Depth to endosaturation: 30 to 122 centimeters (12 to 48 inches)
Reaction: very strongly acid to moderately acid (pH 4.5 to 6.0)
Particle-size control section (weighted averages):
Clay content: 0 to 7 percent
Fine sand content: 30 to 75 percent
Solum thickness: 102 centimeters (40 inches) or more
A horizon:
Hue: 10YR or 2.5Y
Value: 4 to 7
Chroma: 1 or 2
Texture: fine sand, sand, or coarse sand
Clay content: 0 to 7 percent
Rock fragments: 0
EC (mmhos/cm): 0 to 2
E horizon:
Hue: 10YR or 2.5Y
Value: 5 to 8
Chroma: 1 or 2
Texture: fine sand, sand, or coarse sand
Clay content: 0 to 5 percent
Rock fragments: 0
EC (mmhos/cm): 0 to 2
Some pedons have a thin Bh/E horizon with similar properties as the E and Bh horizons.
Bh horizon:
Hue: 5YR, 7.5YR, or 10YR
Value: 2 or 3
Chroma: 1 to 3
Texture: fine sand, sand, or coarse sand
Coated sand grains: most are coated with organic material
Clay content: 2 to 10 percent
Rock fragments: 0
EC (mmhos/cm): 0 to 2
Some pedons have redoximorphic depletions or concentrations, none to common, fine or medium in size.
Bw horizon, where present:
Hue: 5YR, 7.5YR, or 10YR
Value: 3 to 6
Chroma: 3 to 6
Texture: fine sand, sand, or coarse sand
Clay content: 2 to 10 percent
Rock fragments: 0 to 10, some pedons have cobbles or boulders
EC (mmhos/cm): 0 to 2
BC horizon, where present:
Hue: 7.5 YR or 10YR
Value: 4
Chroma: 1 or 2
Texture: fine sand, sand, or coarse sand
Clay content: 0 to 5 percent
Rock fragments: 0
EC (mmhos/cm): 0 to 2
C horizon:
Hue: 10YR or 2.5Y
Value: 5 to 7
Chroma: 1 to 4
Texture: fine sand, sand, or coarse sand
Clay content: 0 to 5 percent
Rock fragments: 0 to 10, some pedons have cobbles or boulders
EC (mmhos/cm): 0 to 2
In some pedons, a Bh' horizon is present instead of a C horizon. It has the same texture and color as the Bh horizon. It ranges up to 36 centimeters (14 inches) thick.
COMPETING SERIES:
Bimini,
Electra, and
Newnan soils have an argillic horizon immediately below the spodic horizon.
Cassia soils have a spodic horizon within 25 to 76 centimeters (10 to 30 inches) of the surface.
Narcoossee soils have a discontinuous or weak Bh horizon.
Zolfo soils have a spodic horizon below at depths greater than 127 centimeters (50 inches)
GEOGRAPHIC SETTING:
Parent material: sandy marine sediments
Landscape: Lower Coastal Plain
Landform: Ridges, hills, and knolls on flatwoods on marine terraces
Slopes: 0 to 5 percent
Elevation: 0 to 25 meters (0 to 80 feet)
Mean annual temperature: 21 to 25 degrees C (70 to 77 degrees F)
Mean annual precipitation: 1143 to 1524 millimeters (45 to 60 inches)
Frost-free period: 345 to 365 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Cassia soils are on similar landforms and have spodic horizons at depths of 25 to 76 centimeters (10 to 30 inches)
Newnan soils are on higher landforms and have argillic horizons.
Myakka,
Immokalee, and
St. Johns soils are on lower landforms and are poorly or very poorly drained.
DRAINAGE AND SATURATED CONDUCTIVITY:
Drainage class: somewhat poorly and moderately well drained
Saturated hydraulic conductivity (Ksat): high throughout
Permeability: moderately rapid throughout
Runoff: negligible to very low
Water table: 46 to 122 centimeters (18 to 48 inches)
USE AND VEGETATION:
Under natural conditions Pomello soils are used for forest and range production, wildlife habitat, and recreation, some areas are used for pasture and urban development.
Potential native vegetation consists of scrub oak, dwarf live oak, sawpalmetto, longleaf pine, slash pine, and pine land threeawn.
DISTRIBUTION AND EXTENT:
Major Land Resource Area (MLRA): South Florida Flatwoods (MLRA 155), Southern Florida Lowlands (MLRA 156B), and South-Central Florida Ridge (MLRA 154)
Extent: Large
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama
SERIES ESTABLISHED: Manatee County, Florida; 1950
REMARKS:
Particle-size control section: The zone from 25 to 100 centimeters (10 to 40 inches)
Diagnostic horizons and features recognized in this pedon:
Ochric epipedon - 0 to 107 centimeters (0 to 42 inches)(A and E horizons)
Albic horizon - 10 to 107 centimeters (4 to 42 inches)(E horizon)
Spodic horizon - 107 to 137 centimeters (42 to 54 inches)(Bh1 and Bh2 horizons)
Oxyaquic feature - 61 to 122 centimeters (24 to 48 inches)(Bh2, Bw, Cg)
Soil classified according to the 12th Edition of the Keys to Soil Taxonomy.
ADDITIONAL DATA:
Laboratory data is available on the National Soil Survey website at: http://ncsslabdatamart.sc.egov.usda.gov/querypage.aspx and Laboratory data is provided by the University of Florida, Department of Soil and Water Science, Gainesville, FL. http://soils.ifas.ufl.edu/flsoils/index.asp
OSD User Site ID: S1997FL093010
OSD User Pedon ID: S1997FL093010
National Cooperative Soil Survey
U.S.A.