LOCATION PINTURA UT+NM
Established Series
Rev. MJD
12/2015
PINTURA SERIES
The Pintura series consists of very deep soils formed in deposits of wind-blown sand weathered from sandstone. Slopes range from 1 to 20 percent. The mean annual precipitation is about 9 inches and the mean annual temperature is about 61 degrees F.
TAXONOMIC CLASS: Mixed, thermic Typic Torripsamments
TYPICAL PEDON: Pintura loamy fine sand - rangeland. (Colors are for air-dry soil unless otherwise stated.)
C1--0 to 3 inches; reddish yellow (5YR 6/8) loamy fine sand, yellowish red (5YR 5/8) moist; single grained; loose; common fine and very fine roots; slightly alkaline (pH 7.6); diffuse smooth boundary. (2 to 4 inches thick)
C2--3 to 65 inches; reddish yellow (5YR 6/8) fine sand, yellowish red (5YR 5/8) moist; single grained; loose; few fine roots; slightly alkaline (pH 7.6).
TYPE LOCATION: Washington county, Utah; Sand Mountain; 75 feet southwest of the northeast corner of sec.36, T.42S., R.14W.
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 59 to 67 degrees F., and mean summer soil temperature ranges from 77 to 82 degrees F. The soils are dry in all parts of the moisture control section 75 to 85 percent of the time the soil temperature is above 41 degrees F. The C horizon has hue of 5YR or 2.5YR, value of 4 through 6 dry, 3 through 5 moist, and chroma of 4 through 8. It is loamy fine sand, fine sand, or loamy sand and in some places is sandy loam below depths of 40 inches. In the 10 to 40 inch section, silt and clay content is less than 10 percent and gravel ranges from 0 to 15 percent. The C1 horizon is neutral to moderately alkaline and the C2 horizon is mildly to strongly alkaline. Carbonates in the lower part of the C horizon range from noncalcareous to moderately calcareous.
COMPETING SERIES: These are the
Berent,
Bluepoint,
Brazito,
Cajon, Berra,
Mespun,
Kermit,
Maynard Lake,
Moapa,
Sheppard,
Toquerville Toqup, and
Yturbide series. Berent, Mespun, and Sheppard soils have mesic Temperature. Bluepoint, Brazito, Maynard Lake, Moapa, and
Toquop soils are calcareous throughout the profile. Brazito, Cajon, Maynard Lake, and Herra soils have dominant hue of 10YR. Yturbide soils have gravelly control sections. Kermit soils have siliceous mineralogy. Toquerville soils are 10 to 20 inches deep to a lithic contact.
GEOGRAPHIC SETTING: Pintura soils are on gently sloping to steep desert slopes and desert mountain slopes. Slopes are 1 to 20 percent. The soil formed in deposits of wind-blown sand weathered from sandstone. Much of the area has recent deposits of wind-blown sand weathered from sandstone. Much of the area has recent deposits of wind-drifted sand in a fine pattern of hummocks ranging from 10 to 36 inches in height. The mean annual precipitation ranges from 8 to 11 inches. Mean annual air temperature ranges from 57 to 65 degrees F. Freeze-free period is about 190 to 195 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Mespun,
Ivins, and
Tobler soils and the competing
Toquerville soils. Mespun soils have mesic temperature. Ivins soils are loamy fine sand underlain by buried argillic horizons. Tobler soils dominantly have fine sandy loam control sections.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained; very slow runoff; rapid permeability.
USE AND VEGETATION: These soils are used principally for rangeland. Potential vegetation consists of sandsage, snakeweed, creosotebush, blackbrush.
DISTRIBUTION AND EXTENT: Southwestern Utah and southern New Mexico. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: PHOENIX, ARIZONA
SERIES ESTABLISHED: Washington County, Utah, 1936.
REMARKS: Last updated by state 4/72.
Responsibility for this series was transferred from Davis to Phoenix 12/2015. ET
National Cooperative Soil Survey
U.S.A.