Selected Soils of Leon County, Florida

Matt Wilson: Pedology Spring 2010

Leon County, FL

• Long warm and humid summers; Mild to cool winters; Freezing temperatures occur approximately 52 days per year.

• Annual Rainfall averages ~57 inches, with about 50% of the rainfall occurring June-September.

• Major Land Uses include urban and built up, residential, cropland and pastureland, pine flatwoods, swamps

Soil 1: From the red hills region of NE Tallahassee

Soil 2: From the flatwoods slopes leading to the Ochlockonee River.

Soil 1: From the red hills region of NE Tallahassee

Soil 2: From the Gulf Coastal flatwoods Slopes leading to the Ochlockonee River.

http://upload.wikimedia.org/wikipedia/en/thumb/0/05/Red_Hills_Region2.png/300px-Red_Hills_Region2.png

Soil 1: Northeast TallahasseeResidential neighborhood. Historic vegetative community is mixed pine/hardwood forest. Dominant canopy species are shortleaf pine (Pinus echinata) and live oak (Quercus virginiana).

Soil 1: Northeast TallahasseeResidential neighborhood. Historic vegetative community is mixed pine/hardwood forest. Dominant canopy species are shortleaf pine (Pinus echinata) and live oak (Quercus virginiana).

Soil 1: Northeast TallahasseeResidential neighborhood. Historic vegetative community is mixed pine/hardwood forest. Dominant canopy species are shortleaf pine (Pinus echinata) and live oak (Quercus virginiana).

Soil 1: Northeast TallahasseeResidential neighborhood. Historic vegetative community is mixed pine/hardwood forest. Dominant canopy species are shortleaf pine (Pinus echinata) and live oak (Quercus virginiana).

Soil 1: Northeast TallahasseeResidential neighborhood. Historic vegetative community is mixed pine/hardwood forest. Dominant canopy species are shortleaf pine (Pinus echinata) and live oak (Quercus virginiana).

Soil 1

Soil 1A: 0-5cm; dark brown (10YR 3/3) sandy loam; weak massive structure; very friable; many fine roots; many uncoated sand grains; clear wavy boundary.

BA: 5-20cm; dark yellowish brown (10YR 4/4) loamy sand; single grain; structureless; many fine roots; sand grains coated w/ clay.

Bt1: 20-59cm; yellowish brown (10YR 5/6) sandy loam; structureless; massive; very friable; few fine roots; sand grains bridged and coated w/ clay.

Bt2: 59-89cm; yellowish brown (10YR 5/6) loam; weak subangular blocky structure; very friable; fine roots absent; some medium roots present; sand grains heavily coated w/ clay.

Bt3: 89-163+cm; red (2.5YR 4/6) loam; moderate subangular blocky structure; very friable; roots absent; sand grains coated and bridged w/ clay.

Ap

BA

Bt1

Ap

BA

Bt1 (Argillic)

Bt1 (Argillic)

Bt2 (Argillic + Kandic)

Bt1(Argillic)

Bt2 (Argillic + Kandic)

Bt3 (Argillic + Kandic)

Bt3 (Argillic + Kandic)

Ochric Epipedon

Soil 1 Pedology and Pedogenesis

• Site: Upland; Residential; Gently Sloping (2-6%)• Parent Material: Marine/Fluvial• Ochric Epipedon• Argillic and Kandic subsurface Horizons• Soil Order: Ultisol • Infiltration Rate: High (surface horizon = sandy loam)• Available Water: Moderate• Hydraulic Conductivity: Moderate• Seasonal High Water: > 150cm• Surface Runoff: Slow• Erosion Potential: Medium • Limitations on Dwellings w/ Basement: Slight• Limitations on Septic Tank Absorption Fields: Slight• Limitations on Local Roads and Streets: Slight

Orangeburg Series

Fine-loamy, kaolinitic, thermic Typic Kandiudult

Soil 2: Apalachicola National ForestPine Flatwoods. Native vegetative community with canopy dominated almost exclusively by slash pine (Pinus elliottii) and longleaf pine (Pinus palustris) with an understory of gallberry (Ilex glabra) and scattered saw palmetto (Serenoa repens).

Soil 1: From the red hills region of NE Tallahassee

Soil 2: From the flatwoods slopes leading to the Ochlockonee River.

Soil 1: From the red hills region of NE Tallahassee

Soil 2: From the Gulf Coastal flatwoods Slopes leading to the Ochlockonee River.

http://upload.wikimedia.org/wikipedia/en/thumb/0/05/Red_Hills_Region2.png/300px-Red_Hills_Region2.png

Soil 2: Apalachicola National ForestPine Flatwoods. Native vegetative community with canopy dominated almost exclusively by slash pine (Pinus elliottii) and longleaf pine (Pinus palustris) with an understory of gallberry (Ilex glabra) and scattered saw palmetto (Serenoa repens).

Soil 2: Apalachicola National Forest

Pine Flatwoods. Native vegetative community with canopy dominated almost exclusively by slash pine (Pinus elliottii) and longleaf pine (Pinus palustris) with an understory of gallberry (Ilex glabra) and scattered saw palmetto (Serenoa repens).

Soil 2: Apalachicola National ForestPine Flatwoods. Native vegetative community with canopy dominated almost exclusively by slash pine (Pinus elliottii) and longleaf pine (Pinus palustris) with an understory of gallberry (Ilex glabra) and scattered saw palmetto (Serenoa repens).

Soil 2: Apalachicola National ForestPine Flatwoods. Native vegetative community with canopy dominated almost exclusively by slash pine (Pinus elliottii) and longleaf pine (Pinus palustris) with an understory of gallberry (Ilex glabra) and scattered saw palmetto (Serenoa repens).

Soil 2: Apalachicola National ForestA: 0-10cm; black (Gley 1 2.5/N) sand; single grain; structureless; loose; many fine roots; very strongly acid; less than 70% of sand grains coated with organic matter; clear wavy boundary.

E1: 10-20cm; dark gray (10YR 4/1) sand; single grain; structureless; loose; few medium and fine roots; very strongly acid.

E2: 20-66cm; gray (10YR 6/1) sand; single grain; structureless; loose; few medium and fine roots; water table elevation at 20cm.

Bh: 66-74cm; black (10YR 2/1) sand; single grain; structureless; loose; roots absent; many sand grains coated w/ organic matter.

E3: 74-92+cm; gray (10YR 5/1) sand; single grain; structureless; loose; roots absent.

Soil 2: Apalachicola National Forest

Ochric Epipedon (too thin for Umbric)

Spodic Horizon?

Soil 2 Pedology and Pedogenesis

• Site: Upland; Pine Flatwoods; Nearly Level (0-2%)• Parent Material: Marine/Fluvial• Ochric Epipedon• Spodic subsurface Horizon?• Soil Order: Spodosol (A, E1, E2, Bh, E3…)? If not then Entisol (A, Cg1,

Cg2, etc…)? • Infiltration Rate: High (surface horizon = sand)• Available Water: Very Low• Hydraulic Conductivity: High• Seasonal High Water: < 25cm• Surface Runoff: Very Slow• Erosion Potential: Very Low • Limitations on Dwellings w/ Basement: Severe• Limitations on Septic Tank Absorption Fields: Severe• Limitations on Local Roads and Streets: Severe

Leon Series

92cm

Sandy, Siliceous, Thermic Aeric Alaquod

Soil 1: From the red hills region of NE Tallahassee

Soil 2: From the flatwoods slopes leading to the Ochlockonee River.