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R
<br />acid clay loam. Between depths of 25 and 42 inches, the
<br />— soil is yellowish red, very strongly acid clay loam that has
<br />vertical streaks of uncoated sand grains. Between
<br />depths of 42 and 80 inches, the soil is red and yellowish
<br />red, very strongly acid sandy clay loam that has vertical
<br />streaks of uncoated sand grains.
<br />Porum soils are strongly sloping to moderately steep
<br />and are on sides of dissected high terraces of major
<br />streams. These soils are moderately well drained and
<br />very slowly permeable. The surface layer is dark grayish
<br />brown, medium acid fine sandy foam about 3 inches
<br />thick. Between depths of 3 and 7 inches, the.soil is pale
<br />brown, medium acid fine sandy loam. Between depths of
<br />7 and 17 inches, the soil is red, very strongly acid clay
<br />that has strong brown mottles. Between depths of 17
<br />and 31 inches, the soil is yellowish red, very strongly
<br />acid clay that has strong brown and light gray mottles.
<br />Between depths of 31 and 42 inches, the soil is yellow-
<br />ish red, strongly acid sandy clay loam that has gray,
<br />strong brown, and red mottles. Between depths of 42
<br />and 65 inches, the soil is strong brown, medium acid
<br />sandy clay loam that has light gray and yellowish red
<br />mottles and vertical streaks of uncoated sand grains.
<br />Other soils are Annona, Woodtell, Freestone, Derly,
<br />Karma, Raino, Hicota, and Guyton soils. Annona, Wood -
<br />tell, Freestone, and Derly soils are loamy, have a clay
<br />subsoil, and are on uplands. Karma soils are loamy and
<br />are on low terraces. Raino and Hicota soils are loamy
<br />—3oils on mounds within areas of Derly and Freestone
<br />soils. Guyton soils are loamy, are frequently flooded, and
<br />ire on narrow bottom lands.
<br />The soils in this unit have medium potential for culti-
<br />vated crops and pasture and hay because of slope and
<br />erodibility. These soils are suited to corn, soybeans, im-
<br />proved bermudagrass, clover, and fescue grass. There is
<br />no range in this unit. Potential for woodland and wood-
<br />land grazing is medium because of low fertility. The more
<br />sloping soils are suited to these uses.
<br />Potential of the soils in this unit for urban uses and
<br />recreation is medium. Slope, shrinking and swelling with
<br />moisture changes, and low strength are the main limiting
<br />factors.
<br />6. Severn - Caspiana - Desha
<br />Nearly level to gently sloping, moderately rapidly perme-
<br />able to very slowly permeable, loamy and clayey soils on
<br />flood plains
<br />This map unit consists of soils on bottom lands and
<br />low stream terraces. Slopes are 0 to 5 percent (fig. 4).
<br />This unit makes up about 4 percent of the survey area. It
<br />is about 30 *percent Severn soils, 17 percent Caspiana
<br />soils, 16 percent Desha soils, and 37 percent other soils.
<br />Severn soils are nearly level to gently sloping and are
<br />,.ten flood plains. These soils are well drained and moder-
<br />;ely rapidly permeable. The surface layer is reddish
<br />`own, very fine sandy loam about 4 inches thick. Be-
<br />353
<br />SOIL SURVEY
<br />tween depths of 4 and 63 inches, the soil is reddish
<br />brown, very fine sandy loam that*has thin strata of loam
<br />and many bedding planes. Many areas of Severn soils
<br />have thin layers of silty clay loam overwash.
<br />Caspiana soils are nearly level and are on low ter
<br />races. These soils are well drained and moderately per-
<br />meable. The surface layer is dark brown, slightly acid silt
<br />loam about 10 inches thick. Between depths of 10 and
<br />16 inches, the soil is dark reddish brown, neutral silt
<br />loam. Between depths of 16 and 19 inches, the soil is
<br />dark brown, neutral silt loam. Between depths of 19 and
<br />48 inches, the soil is reddish brown, neutral silt loam.
<br />Between depths of 48 and 80 inches, the soil is yellow-
<br />ish red, neutral silt loam.
<br />Desha soils are nearly level and are in backswamp
<br />areas and depressional meander belts. These soils are
<br />somewhat poorly drained and very slowly permeable.
<br />The surface layer is dark reddish brown, mildly alkaline
<br />clay about 26 inches thick. Between depths of 26 and 70
<br />inches, the soil is reddish brown, moderately alkaline
<br />clay.
<br />Other soils are Redlake, Belk, Muldrow, Norwood,
<br />Harjo, and Kiomatia soils. Redlake, Belk; Muldrow, Nor-
<br />wood, Harjo, and Kiomatia soils are nearly level to gently
<br />sloping and are on flood plains. The clayey Redlake and
<br />Belk soils and the loamy Muldrow and Norwood soils are
<br />on bottom lands and are rarely inundated. The clayey
<br />Harjo and the sandy Kiomatia soils are frequently
<br />flooded.
<br />The soils in this unit have high potential for cultivated
<br />crops and pasture and hay. Row crops, forage crops,
<br />legumes, and small grains grow well. Surface drainage
<br />may be needed in some places that are somewhat
<br />poorly drained or poorly drained. These soils are the
<br />most productive and intensely cultivated in the survey
<br />area. Potential for woodland and woodland grazing is
<br />high. There is no range.
<br />The potential for most urban uses is low because of
<br />flooding. Potential for recreation is low because of flood-
<br />ing and a surface layer that is too clayey.
<br />Land use considerations
<br />Deciding which land should be used for crops, pasture
<br />and hay, range, woodland, urban uses, or recreation is
<br />an important issue in this survey area. Each year a
<br />considerable amount of land is developed for each of
<br />these uses. The general soil map is most helpful in the
<br />general planning of development; however, it cannot be
<br />used for the selection of sites for specific uses. In gener-
<br />al, the soils that have high potential for crops, pasture
<br />and hay, and range have low potential for urban uses
<br />and recreation. The data about specific soils elsewhere
<br />in this survey can be helpful in planning future land use.
<br />General soil map units 1 and 6 have high potential for
<br />crops and pasture and hay but low potential for urban
<br />uses and recreation. The soils in these units are the
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