LOCATION SOUTHSIDE               OK+KS TX

Established Series
Rev. CDS-RFG
10/2018

SOUTHSIDE SERIES

The Southside series consists of very deep, somewhat excessively drained, rapidly permeable soils that formed in sandy and/or gravelly alluvial sediments of Pleistocene age. These very gently sloping to moderately steep soils occur on risers of stream terraces on plains. Slope ranges from 1 to 20 percent. Mean annual temperature is about 16.1 degrees C (61 degrees F), and mean annual precipitation is about 635 mm (25 in).

TAXONOMIC CLASS: Mixed, thermic Typic Ustipsamments

TYPICAL PEDON: Southside sandy loam, on a 9.5 percent slope in rangeland.
(Colors are for dry soil unless otherwise stated.)

A--0 to 15 cm (0 to 6 in); reddish brown (5YR 5/4), sandy loam, reddish brown (5YR 4/4), moist; weak fine granular structure; hard, friable; common fine roots; common fine pores; 8 percent rounded siliceous gravel; very slight effervescence; moderately alkaline; clear smooth boundary. Thickness is 13 to 46 cm (5 to 18 in)

C1--15 to 71 cm (6 to 28 in); yellowish red (5YR 5/6), gravelly loamy sand, yellowish red (5YR 4/6), moist; massive; soft, loose; few fine roots; common fine pores; 34 percent rounded siliceous gravel with thin strata containing up to 60 percent gravel; strong effervescence; moderately alkaline; clear smooth boundary. Thickness is 15 to 76 cm (6 to 30 in)

C2--71 to 203 cm (28 to 80 in); reddish yellow (7.5YR 7/6), sand, reddish yellow (7.5YR 6/6), moist; massive; loose, loose; very few fine roots; few fine pores; 5 percent rounded siliceous gravel; strong effervescence; moderately alkaline.

TYPE LOCATION:
Greer County, OK; from the intersection of U.S. Highway 283 and OK State Highway 9 in Mangum, about 1.0 miles north on U.S. Highway 283, then east on county road 0.64 miles, then 2,325 feet north in rangeland;
located about 2,325 feet north and 1,900 feet west of the southeast corner of section 11, T. 5 N., R. 22 W., Indian meridian

USGS topographic quadrangle: Granite, Oklahoma
Latitude: 34 degrees, 55 minutes, 15.21 seconds N
Longitude: 99 degrees, 29 minutes, 27.36 seconds W
Datum: NAD 83

Decimal Degrees
Std Latitude: 34.9208917
Std Longitude: -99.4909333

RANGE IN CHARACTERISTICS:
Soil Moisture: Typic Ustic soil moisture regime.
Depth to identifiable secondary carbonate: 0 to 48 cm (0 to 19 in)

Particle-size control section (weighted average)
Total Clay content: 1 to 15 percent
Total Sand content: 70 to 95 percent
Rock Fragments: 1 to 35 percent siliceous gravel. Thin strata may contain up to 60 percent gravel but weighted average of control section is 35 percent or less.

A Horizon
Hue: 5YR or 7.5YR
Value: 4 to 6 (3 to 5 moist)
Chroma: 3 or 4
Texture: Sandy loam, loamy sand, sand, and their gravelly counterparts
Total clay content: 1 to 15 percent
Total Sand content: 43 to 100 percent
Rock fragments: 1 to 20 percent siliceous gravels
Identifiable secondary carbonate: 0 to 5 percent, fine and medium, threads or films
Calcium carbonate equivalent: 0 to 10 percent
Effervescence: None to strong
Reaction (pH): Neutral to moderately alkaline (6.6 to 8.4)

AC Horizon (where present)
Hue: 5YR or 7.5YR
Value: 4 to 6 (3 to 5 moist)
Chroma: 4 or 6
Texture: Loamy sand, sand, and their gravelly counterparts
Total clay content: 1 to 10 percent
Total Sand content: 70 to 100 percent
Rock fragments: 1 to 20 percent siliceous gravels
Calcium carbonate equivalent: 0 to 10 percent
Identifiable secondary carbonate: 0 to 5 percent, fine and medium, threads or films
Effervescence: None to strong
Reaction (pH): Neutral to moderately alkaline (6.6 to 8.4)

C or Ck Horizons
Hue: 5YR or 7.5YR
Value: 5 to 7 (4 to 6 moist)
Chroma: 4 to 8
Texture: Loamy sand, sand, and their gravelly counterparts
Total clay content: 1 to 10 percent
Total Sand content: 70 to 100 percent
Rock fragments: 1 to 35 percent siliceous gravels. Some pedons have thin strata that contain up to 60 percent gravel.
Calcium carbonate equivalent: 0 to 10 percent
Identifiable secondary carbonate: 0 to 10 percent, fine and medium, threads, films, and/or masses
Effervescence: Very slight to strong
Reaction (pH): Slightly alkaline to moderately alkaline (7.4 to 8.4)

COMPETING SERIES:
These are the Goodnight, Jester, and Tivoli series in the same family. Similar soils are the Likes series.
Goodnight soils: formed in eolian sediments, do not have gravelly textures, and occur in more moist climates.
Jester soils: formed in eolian sediments, do not have gravelly textures, and occur in lower positions near streams.
Tivoli soils: formed in eolian sediments, do not have gravelly textures, are noncalcareous throughout the control section, and occur on higher terrace positions.
Likes soils: are derived from Ogallala Formation material and contain siliceous gravels, fragments of caliche and sandstone, and occur in a drier climate.

GEOGRAPHIC SETTING:
Parent material: Sandy and/or gravelly alluvium of Pleistocene age.
Landscape: Alluvial plains, Dissected plains
Landform: Risers of stream terraces
Slope: 1 to 20 percent
Mean annual precipitation range: 20 to 28 inches
Thornthwaite annual P-E indices: 32 to 44
Mean annual air temperature range: 57 to 64 degrees F.
Frost-free period: 180 to 230 days
Elevation: 1,000 to 2,300 feet

GEOGRAPHICALLY ASSOCIATED SOILS:
These are the Arnett, Fortyone, Hardeman, and Jester series.
Arnett soils: These soils occur on higher positions, have a fine-loamy particle size control section, and have argillic horizons.
Fortyone soils: These soils occur on similar positions, have a coarse-loamy particle size control section, and have argillic horizons.
Hardeman soils: These soils occur on similar positions and have a coarse-loamy particle size control section with less gravel content.
Jester soils: These soils occur on lower positions near rivers and large streams and do not have gravelly textures.

DRAINAGE AND PERMEABILITY:
Drainage class: Somewhat excessively drained
Permeability class: Rapid
Runoff class: negligible on 1 to 5 percent slopes and very low on 5 to 20 percent slopes

USE AND VEGETATION:
Major uses: livestock grazing
Native vegetation: a mixture of tall and mid grasses
Ecological sites assigned to phases and components of this series are listed below. Current ecological site assignments are in Web Soil Survey. Components of this series include the following ecological sites: Sand Hills

DISTRIBUTION AND EXTENT:
General area: Western Oklahoma, northwestern Texas, and a few counties in southern Kansas
Land Resource Region: H - Central Great Plains Winter Wheat and Range Region
MLRA 78B-Central Rolling Red Plains, Western Part and 78C -Central Rolling Red Plains, Eastern Part
Extent: Moderate

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas

SERIES ESTABLISHED: Greer County, OK, 2006. Proposed in Greer County, OK, 2003. The name comes from an old school in Jackson County.

REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: 25 to 100 cm (10 to 40 in) (C1 and C2 horizons)
Ochric epipedon: 0 to 15 cm (0 to 6 in) (A horizon)
Other features: Psamments - less than 35 percent by volume rock fragments and a texture of loamy fine sand or coarser in all layers between a depth of 25 to 100 cm from the mineral soil surface.

Additional Comments: These soils were formerly mapped as Sandy Broken Land or Likes in earlier soil surveys. Areas of this soil have been mined for use as roadbed material.

TAXOMOMIC VERSION: Keys to Soil Taxonomy, Twelfth Edition, 2014

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National Cooperative Soil Survey
U.S.A.