LOCATION PULASKI                 OK+AR TX

Established Series
Rev. CEW:CS:CRC:JLD
03/2016

PULASKI SERIES

The Pulaski series consists of very deep, well drained, moderately rapidly permeable flood plain soils that formed in loamy alluvial sediments of Holocene age. These nearly level to very gently sloping flood plain soils are on small tributaries in the Cross Timbers (MLRA-84A). Slope ranges from 0 to 3 percent. Mean annual temperature is 16.1 degrees C (61 degrees F), and mean annual precipitation is 864 mm (34 in).

TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, nonacid, thermic Udic Ustifluvents

TYPICAL PEDON: Pulaski fine sandy loam-cultivated, at an elevation of 260 m (850 ft). (Colors are for dry soils unless otherwise stated.)

Ap--0 to 18 cm (0 to 7 in); reddish brown (5YR 5/4) fine sandy loam, reddish brown (5YR 4/4) moist; weak fine and very fine granular structure; soft, very friable; moderately acid; clear smooth boundary. (Thickness of the Ap horizon is 0 to 30 cm [0 to 12 in])

A--18 to 48 cm (7 to 19 in); reddish brown (5YR 5/4) fine sandy loam, reddish brown (5YR 4/4) moist; weak fine and very fine granular structure; slightly hard, very friable; moderately acid; gradual smooth boundary. (Thickness of the A horizon is 10 to 51 cm [4 to 20 in])

C1--48 to 102 cm (19 to 40 in); yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6) moist; massive; slightly hard, very friable; few thin strata of darker colored fine sandy loam in lower part; slightly acid; gradual smooth boundary. (Thickness of the C1 horizon is 41 to 104 cm [16 to 41 in])

C2--102 to 163 cm (40 to 64 in); reddish yellow (5YR 6/6) fine sandy loam, yellowish red (5YR 5/6) moist; massive, slightly hard, very friable; common thin strata of loamy fine sand; slightly acid.

TYPE LOCATION: Lincoln County, Oklahoma; about 6 miles north and 1 mile east of Chandler; 1,135 feet north and 200 feet east of the southwest corner of sec. 2, T. 15 N., R. 4 E.

USGS topographic quadrangle: Kendrick, OK
Latitude: 35 degrees, 48 minutes, 1 seconds N
Longitude: 96 degrees, 51 minutes, 27 seconds W
Datum: NAD 83:

Decimal Degrees
Latitude: 35.80016
Longitude: -96.85757

UTM Easting: 693592.16 m
UTM Northing: 3963901.8 m
UTM Zone: 14N

RANGE IN CHARACTERISTICS:
Buried horizons: in some pedons below a depth of 76 cm (30 in)

Particle-size control section (weighted average):
Effervescence: none

A horizon:
Hue: 2.5YR to 10YR
Value: 5 to 7 dry, 4 to 6 moist
Chroma: 2 to 6 dry or moist
Other features: where the A horizon has moist value and chroma less than 3.5 and is more than 25 cm (10 in) thick, the organic matter content is less than 1 percent
Texture: loamy fine sand, fine sandy loam, or loam; where the texture is loamy fine sand, the thickness is less than 25 cm (10 in)
Reaction: moderately acid to slightly alkaline

C horizon:
Hue: 2.5YR to 7.5YR
Value: 5 to 7 dry, 4 to 6 moist
Chroma: 3 to 8 dry or moist
Texture: fine sandy loam, very fine sandy loam, or loam; some pedons have a texture of loamy fine sand below a depth of 102 cm (40 in)
Other features: strata of coarser or finer materials occur throughout; strata range from 2 to 25 mm thick and from 1 cm to 15 cm apart
Reaction: moderately acid to slightly alkaline to a depth of 102 cm (40 in), and below a depth of 102 cm (40 in) moderately acid to moderately alkaline

COMPETING SERIES: There are no known series in the same family. Yahola soils are in a similar family.
Yahola soils: are calcareous throughout

GEOGRAPHIC SETTING:
Parent material: loamy alluvial sediments of Holocene age
Landscape: alluvial plains
Landform: flood plains
Slope: 0 to 3 percent
Mean annual air temperature: 14.4 to 17.2 degrees C (58 to 63 degrees F)
Mean annual precipitation: 762 to 1020 mm (30 to 40 in)
Frost-free period: 200 to 230 days
Elevation: 213 to 396 m (700 to 1300 ft)
Thornthwaite Annual P-E indices: 44 to 64

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gaddy, Tribbey, Yahola, Ashport, Cyril, Easpur, Gracemont, Gracemore, and Port series.
Cyril, Tribbey, and Yahola soils: occur on similar positions; in addition, Ashport, Easpur, and Port soils: occur on slightly higher positions; in addition Ashport and Port soils have a mollic epipedon and a fine-silty textural control section; Easpur soils have a mollic epipedon and a fine-loamy textural control section
Cyril soils have a mollic epipedon
Gaddy, Gracemont, and Gracemore soils: usually occur on flood plains nearer the stream channel of the larger streams; in addition, Gracemont and Gracemore soils have an apparent water table within 51 to 102 cm (20 to 40 in) of the soils surface and are calcareous throughout; and Gracemore soils have a sandy control section.

DRAINAGE AND PERMEABILITY:
Drainage: well drained
Permeability: moderately rapid
Runoff: negligible
Flooding: these soils are occasionally or frequently flooded for very brief periods of time during the months of March to October

USE AND VEGETATION: Mainly cultivated to alfalfa, small grains, grain sorghums, cotton, and tame pasture. Native vegetation is tall and midgrasses with an overstory of pecan, black walnut, American elm, eastern cottonwood, and tamarisk.

DISTRIBUTION AND EXTENT: LRR J; Northern Cross Timbers (MLRA 84A) of Oklahoma, Kansas, and Texas. The series is extensive.

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

SERIES ESTABLISHED: Lonoke County, Arkansas; 1921.

REMARKS:
Soil Interpretation Record No. OK0035

Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: 0 to 48 cm (0 to 19 in) (Ap, A horizons)
Other features: an irregular decrease in organic carbon
Moisture regime: Udic-Ustic

ADDITIONAL DATA: None

Taxonomic Version: Keys To Soil Taxonomy, Twelfth Edition, 2014

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National Cooperative Soil Survey
U.S.A.