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Custom Soil Resource Report
St. Lucie County, Florida
21—Lawnwood and Myakka sands
Map Unit Setting
National map unit symbol: 1jpvg
Elevation: 0 to 200 feet
Mean annual precipitation: 49 to 58 inches
Mean annual air temperature: 70 to 77 degrees F
Frost -free period: 350 to 365 days
Farmland classification: Farmland of unique importance
Map Unit Composition
Lawnwood and similar soils: 41 percent
Myakka and similar soils: 39 percent
Minor components: 20 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Lawnwood
Setting
Landform: Marine terraces on flatwoods
Landform position (three-dimensional): Talf
Down-slope shape: Linear
Across -slope shape: Linear
Parent material: Sandy marine deposits
Typical profile
A - 0 to 8 inches: sand
E - 8 to 28 inches: sand
Bh1 - 28 to 52 inches: sand
Bh2 - 52 to 58 inches: sand
C - 58 to 80 inches: sand
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: 10 to 31 inches to ortstein
Drainage class: Poorly drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to water table. About 6 to 18 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Sodium adsorption ratio, maximum: 4.0
Available water capacity: Very low (about 0.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4w
Hydrologic Soil Group: A/D
Forage suitability group: Sandy soils on flats of mesic or hydric lowlands
(G156BC141 FL)
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Custom Soil Resource Report
Other vegetative classification:
(G156BC141FL)
Hydric soil rating: No
Description of Myakka
Sandy soils on flats of mesic or hydric lowlands
Setting
Landform: Flatwoods on marine terraces
Landform position (three-dimensional): Talf
Down-slope shape: Convex
Across -slope shape: Linear
Parent material: Sandy marine deposits
Typical profile
A - 0 to 7 inches: sand
E - 7 to 27 inches: sand
Bh - 27 to 38 inches: sand
C - 38 to 80 inches: sand
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Poorly drained
Runoff class: High
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.57 to 5.95 in/hr)
Depth to water table: About 6 to 18 inches
Frequency of flooding. None
Frequency of ponding: None
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Sodium adsorption ratio, maximum: 4.0
Available water capacity: Low (about 4.5 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4w
Hydrologic Soil Group: A/D
Forage suitability group: Sandy soils on flats of mesic or hydric lowlands
(G156BC141FL)
Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands
(G156BC141 FL)
Hydric soil rating: No
Minor Components
Ankona
Percent of map unit: 7 percent
Landform: Flatwoods on marine terraces
Landform position (three-dimensional): Talf
Down-slope shape: Convex
Across -slope shape: Linear
Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands
(G156BC141 FL)
Hydric soil rating: No
Electra
Percent of map unit: 7 percent
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Custom Soil Resource Report
Landform: Knolls on marine terraces, rises on marine terraces
Landform position (three-dimensional): Interfluve
Down-slope shape: Convex
Across -slope shape: Linear
Other vegetative classification: Sandy soils on rises and knolls of mesic uplands
(G156BC131 FL)
Hydric soil rating: No
Waveland
Percent of map unit. 6 percent
Landform: Flatwoods on marine terraces
Landform position (three-dimensional): Talf
Down-slope shape: Convex
Across -slope shape: Linear
Other vegetative classification: Sandy soils on flats of mesic or hydric lowlands
(GI 56BC141FL)
Hydric soil rating: No
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