LOCATION CLANA                   MO

Established Series
Rev. RLT-LJG
02/2013

CLANA SERIES


The Clana series consists of very deep, moderately well drained soils formed in sandy alluvium on old natural levees and terraces. These soils have rapid permeability and slopes ranging from 0 to 2 percent. Mean annual temperature is about 61 degrees F, and mean annual precipitation is about 46 inches.

TAXONOMIC CLASS: Mixed, thermic Aquic Udipsamments

TYPICAL PEDON: Clana loamy fine sand--on a 1 percent slightly convex slope in a cultivated field. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 7 inches; brown (10YR 4/3) loamy fine sand, pale brown (10YR 6/3) dry; weak fine granular structure; very friable; few fine roots; slightly acid; abrupt smooth boundary. (6 to 10 inches thick)

Bw1--7 to 15 inches; dark yellowish brown (10YR 4/4) loamy fine sand; common fine prominent dark brown (7.5YR 3/2), and common fine distinct pale brown (10YR 6/3) iron accumulations; common fine faint grayish brown (10YR 5/2) iron depletions; weak subangular blocky structure; very friable; few very fine roots; slightly acid; clear smooth boundary.

Bw2--15 to 33 inches; yellowish brown (10YR 5/4) loamy fine sand; common medium distinct light brownish gray (10YR 6/2) iron depletions; common medium distinct yellowish brown (10YR 5/6) mottles; weak fine subangular blocky structure; very friable; slightly acid; clear smooth boundary. (Combined thickness of the Bw horizons is 12 to 46 inches.)

C--33 to 60 inches; dark yellowish brown (10YR 4/4) loamy fine sand; common medium distinct dark brown (7.5YR 3/2) and common fine distinct light brownish gray (10YR 6/2) iron depletions; single grained; loose; moderately acid.

TYPE LOCATION: Mississippi County, Missouri; about 3 miles southeast of Bertrand; 1300 feet west and 65 feet north of the southeast corner, sec. 14, T. 26 N., R. 15 E. Latitude 36 degrees, 53 minutes, 29.2 seconds N., longitude 89 degrees, 23 minutes, 49.6 seconds W., NAD83.

RANGE IN CHARACTERISTICS: The solum ranges from 24 to 56 inches. Some pedons have concretions with hue of 10YR and 7.5YR, value of 2 or 3 and chroma of 1 or 2. Reaction ranges from moderately acid to neutral. There is more than 5 percent silt plus clay in the particle size control section. The mean annual soil temperature at 20 inches is 59 to 65 degrees F.

The Ap horizon has hue of 10YR or 7.5YR, value of 3 or 4, and chroma of 2 or 3. It generally is loamy fine sand and ranges to loamy sand and fine sand.

The Bw horizon has hue of 10YR or 7.5YR, value of 4 or 5, and chroma of 3 to 6. Mottles are few or common and have hue of 10YR or 7.5YR, value of 3 to 6 and chroma of 2 to 6. It commonly is loamy fine sand and ranges to loamy sand and fine sand.

The C horizon has hue of 10YR or 7.5YR, value of 4 to 6, and chroma of 2 to 5. Those horizons with matrix chroma of 3 or more have 2 or less chroma mottles. It is loamy fine sand, loamy sand, or sand.

COMPETING SERIES: These are the Fisherman, Seabrook, and Voss series in the same family and the similar Canalou series. Fisherman soils have less than 5 percent silt plus clay in the control section and are inundated by salt water. Seabrook soils have yellowish hues in the lower C horizons and have distinct concretions throughout the control section, 1/8 to 2 inches in diameter. Voss soils have a mean annual soil temperature of over 68 degrees F. Canalou soils are coarse-loamy.

GEOGRAPHIC SETTING: Clana soils occur on flat to slightly convex natural levees or terraces. Slope gradients are 0 to 2 percent. The soils formed in sandy alluvium of the Mississippi and Ohio Rivers under the influence of a fluctuating water table. The mean annual temperature ranges from 58 to 65 degrees F, mean annual precipitation ranges from 42 to 52 inches.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Broseley, Diehlstadt, Lilbourn, Malden, Scotco, and Sikeston soils. Broseley soils have argillic horizons and occur on undulating and sloping levees or terraces above Clana soils. Diehlstadt and Sikeston soils have thick mollic epipedons and occur in depressions or old stream channels below Clana soils. Lilbourn soils are coarse-loamy and occur on nearly level to depressional areas. Malden and Scotco soils do not have 2 chroma mottles and occur on the higher parts of the natural levees and the side slopes.

DRAINAGE AND PERMEABILITY: Moderately well drained. Rapid permeability. Runoff is slow.

USE AND VEGETATION: Soils are cropped to wheat, grain sorghum, soybeans, corn, and cotton. Native vegetation is mixed hardwoods with an undergrowth of vines, canes, and native grasses.

DISTRIBUTION AND EXTENT: The Mississippi River Delta in Missouri. The series is of moderate extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: AUBURN, ALABAMA

SERIES ESTABLISHED: Mississippi County, Missouri, 1978.

REMARKS: The Clana series was formerly mapped as part of the Canalou series.Diagnostic horizons and features recognized in this pedon are: ochric epipedon - the zone from the surface of the soil to a depth of 7 inches (Ap horizon); cambic horizon - the zone from approximately 7 to 33 inches (Bw1 and Bw2 horizons); udic moisture regime.

ADDITIONAL DATA: Textural data is from 5 pedons - S78MO-133-(1, 3, 5, 7) and S78MO-201-1.


National Cooperative Soil Survey
U.S.A.