LOCATION DAYBELL UTEstablished Series
TAXONOMIC CLASS: Coarse-loamy over sandy or sandy-skeletal, mixed, superactive Pachic Haplocryolls
TYPICAL PEDON: Daybell loam, range woodland. (Colors are for dry soil unless otherwise noted.)
A11--0 to 4 inches; very dark grayish brown (10YR 3/2) loam, very dark brown (10YR 1/3) moist; weak fine granular structure; soft, very friable, nonsticky and nonplastic; many fine roots; neutral (pH 6.7); clear wavy boundary. (3 to 7 inches thick)
A12--4 to 16 inches; dark grayish brown (10YR 4/2) loam, very dark brown (10YR 2/3) moist; medium fine granular structure; soft, very friable, nonsticky and nonplastic; many fine and medium and few coarse roots; neutral (pH 6.8); abrupt irregular boundary. (11 to 19 inches thick)
C1--16 to 25 inches; light brownish gray (10YR 6/2) very gravelly loamy fine sand, brown (10YR 4/3) moist; mostly single grained but with some pockets of soil material having weak medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; many fine and medium roots; common medium pores; 60 to 70 percent gravel and cobbles and a few voids larger than 1 mm. are not filled with fines; neutral (pH 6.8); clear irregular boundary. (9 to 15 inches thick)
C2--25 to 31 inches; light brownish gray (10YR 6/2) very gravelly loamy fine sand, brown (10YR 4/3) moist; mostly single grained but some pockets of soil have very weak medium subangular blocky structure; loose, very friable, nonsticky and nonplastic; many fine and medium roots; 60 to 70 percent gravel and cobbles and a few voids larger than 1 mm. are not filled by fines; neutral (pH 6.8); clear irregular boundary. (6 to 12 inches thick)
C3--31 to 51 inches, light brownish gray (10YR 6/2) very gravelly fine sand, brown (10YR 4/3) moist; single grained; loose; common fine roots concentrated in the soil and on surfaces of coarse rock fragments; 70 to 80 percent gravel, cobbles, and stones; there are common voids 1 mm. or larger in size that are not filled with fines; neutral (pH 6.8); diffuse irregular boundary. (15 to 20 inches thick)
C4--51 to 60 inches; light gray (10YR 7/2) very gravelly loamy fine sand, brown (10YR 5/3) moist; single grained; loose; few fine roots; 70 to 80 percent gravel, cobbles, and stones; there are common voids 1 mm. or larger in size that are filled with fines; neutral (pH 6.8).
TYPE LOCATION: Watach County, Utah; abput 20 miles southeast of Heber; west side road from Daniels Summit and 12.6 miles northwest; 1,600 feet north and 1,720 feet east of southwst corner of section 1, T.5S., R.5E.
RANGE IN CHARACTERISTICS: The mollic epipedon is 16 to 24 inches thick. The C horizon is very gravelly and cobbly sandy loam, loamy sand or fine sand containing less than 18 percent clay and more than 50 percent coarse fragments. There are few to many voids larger than 1mm. that are not filled with fines in the lower part of the control section. The mean annual soil temperature is about 40 degrees F., and the mean summer soil temperature at 20 inches is 54 to 58 degrees F. The A1 horizon has value of 3 through 5 dry, 1 through 3 moist, and chroma of 2 or 3. It has weak or moderate fine and medium granular structure. This horizon is neutral or slightly acid. The C horizon has hue of 10YR or 7.5YR, value of 6 or 7 dry, 4 or 5 moist, and chroma of 2 through 4. It is very gravelly and cobbly loamy fine sand, fine sand or sandy loam and contains over 50 percent coarse fragments. This horizon is neutral and slightly acid.
COMPETING SERIES AND THEIR DIFFERENTIAE: These are the Broad Canyon, Hailman, and Poleline soils. Broad Canyon soils have mollic epipedons less than 16 inches thick. Hailman soils have less than 35 percent coarse fragments in the control section. Poleline soils have cambic horizons and have sufficient fines to fill the voids more than 1 mm in size, throughout the control section.
GEOGRAPHIC SETTING: Daybell soils are on steep and very steep mountain slopes at elevations of 7,000 to 9,000 feet. Slope gradients are 25 to 80 percent. These soils formed in colluvium derived from mixed sedimentary and metamorphic parent rocks. The climate is humid with 23 to 35 inches precipitation falling mostly as snow. The mean annual temperature is about 40 degrees F., and the mean summer temperature is about 57 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bradshaw, Cluff, Fitzgerald and Roundy soils. Bradshaw soils have mean summer temperatures of more than 59 degrees F. Cluff soils have a mollic epipedon 6 to 9 inches thick overlying the A2 horizon and have fine textured argillic horizons with more than 35 percent clay. Fitzgerald soils lack mollic epipedons and have albic and argillic horizons. Roundy soils have A2 horizons underlain by fine textured argillic horizons that have less than 35 percent coarse fragments and more than 35 percent clay.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained; medium runoff; rapid permeability.
USE AND VEGETATION: Watershed, summer range for livestock and wildlife and some timber production. The overstory is aspen with scattered conifer consisting of subalpine fir, white fir, and Douglas fir and the understory of mountain bromegrass, blue wildrye, bearded wheat grass, Columbia needlegrass, Letterman needlegrass, bluebell, Jacob's ladder, peavine, snowberry, ninebark and red elderberry.
DISTRIBUTION AND EXTENT: Central Utah. The series is inextensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Sanpete Area, Utah, 1971.
REMARKS: The Daybell soils were formerly classified as Regosols.