LOCATION LAMBSEN UTEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, mesic Aquic Haplocalcids
TYPICAL PEDON: Lambsen loam, on a southeast facing, 1 percent slope in irrigated pasture at an elevation of 5,440 feet. Surface cover of undecomposed litter 1 to 2 inches thick. (Colors are for dry soil unless otherwise noted.)
A1--0 to 5 inches; brown (10YR 5/3) loam, dark yellowish brown (10YR 3/4) moist; moderate fine and very fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; many very fine and fine, common medium, few coarse roots; many very fine and fine, common medium tubular pores; slightly effervescent (11 percent calcium carbonate equivalent), carbonates are disseminated; strongly alkaline (pH 8.8); clear wavy boundary.
A2--5 to 9 inches; light brown (7.5YR 6/3) fine sandy loam, dark yellowish brown (10YR 3/4) moist; moderate medium subangular blocky structure parting to weak fine and very fine subangular blocky; slightly hard, very friable, slightly sticky and slightly plastic; many very fine and fine, common medium, few coarse roots; many very fine, common fine, few medium tubular pores; slightly effervescent (8 percent calcium carbonate equivalent), carbonates are disseminated; strongly alkaline (pH 9.0); clear irregular boundary. (combined thickness of A horizon is 3 to 9 inches)
Bw--9 to 18 inches; light brown (7.5YR 6/4) gravelly sandy clay loam, strong brown (7.5YR 4/6) moist; moderate medium subangular blocky structure parting to weak fine and very fine subangular blocky; hard, friable, slightly sticky and slightly plastic; many very fine, fine and medium, few coarse roots; many very fine, few fine and medium tubular pores; 20 percent gravel, 10 percent cobbles; slightly effervescent (11 percent calcium carbonate equivalent), carbonates are disseminated; moderately alkaline (pH 8.4); clear wavy boundary. (4 to 10 inches thick)
Bk1--18 to 25 inches; pink (7.5YR 7/4) extremely cobbly sandy clay loam, brown (7.5YR 5/4) moist; weak medium subangular blocky structure parting to weak fine subangular blocky; hard, friable, slightly sticky and slightly plastic; many very fine, fine and medium, few coarse roots; many very fine, few fine and medium tubular pores; 45 percent gravel, 20 percent cobbles; strongly effervescent (12 percent calcium carbonate equivalent), carbonates are disseminated and segregated as common fine irregular shaped masses; moderately alkaline (pH 8.2); gradual wavy boundary.
Bk2--25 to 35 inches; pinkish white (7.5YR 8/2) very cobbly clay loam, light brown (7.5YR 6/4) moist; weak medium subangular blocky structure parting to weak fine subangular blocky; hard, firm, moderately sticky and moderately plastic; many very fine, common fine and medium, few coarse roots; many very fine, few fine tubular pores; 25 percent gravel, 25 percent cobbles; strongly effervescent (22 percent calcium carbonate equivalent), carbonates are disseminated and segregated as many rounded medium and coarse masses; moderately alkaline (pH 8.0); gradual wavy boundary.
Bk3--35 to 47 inches; pink (7.5YR 8/4) extremely cobbly clay loam, light brown (7.5YR 6/4) moist; weak medium subangular blocky structure parting to weak fine subangular blocky; very hard, firm, moderately sticky and moderately plastic; common very fine, few fine and medium roots; common very fine, few fine tubular pores; 45 percent gravel, 30 percent cobbles, 5 percent stones; strongly effervescent (19 percent calcium carbonate equivalent), carbonates are disseminated and segregated as many rounded medium and coarse masses; moderately alkaline (pH 8.0); gradual wavy boundary.
Bk4--47 to 60 inches; pink (7.5YR 7/4) extremely cobbly sandy clay loam, brown (7.5YR 5/4) moist; massive, slightly hard, friable, slightly sticky and slightly plastic; few very fine roots; common very fine, few fine interstitial and tubular pores; 45 percent gravel, 30 percent cobbles, 5 percent stones; strongly effervescent (15 percent calcium carbonate equivalent), carbonates are disseminated and segregated as common fine irregular shaped masses; moderately alkaline (pH 8.2). (combined thickness of the Bk horizon is 38 to 53 inches)
TYPE LOCATION: Uintah County, Utah; about 6.5 miles northeast of Roosevelt, Utah; located about 1,200 feet east and 200 feet south of the northwest corner of sec. 29, T. 1 S., R. 1 E., USBM; Roosevelt, Utah USGS quad; lat. 40 degrees 22 minutes 27 seconds N. and long. 109 degrees 54 minutes 46 seconds W., NAD 27
RANGE IN CHARACTERISTICS:
Soil moisture: The soil moisture control section is affected by precipitation that falls evenly through the year with a slight increase in late summer and early fall. Typic aridic moisture regime.
Mean annual soil temperature: 47 to 51 degrees F.
Depth to calcic horizon: 7 to 25 inches
Depth to endosaturation: 18 to 42 inches to irrigation induced saturation during the months of May through December.
EC (mmohs/cm): 0 to 4
Gypsum: 0 to 1 percent
Particle-size control section: 18 to 35 percent clay and 35 to 70 percent rock fragments (predominantly gravel and cobbles from sedimentary and metamorphic origin)
A horizon:
Hue: 7.5YR or 10YR
Value: 5 or 6 dry, 3 to 5 moist
Chroma: 2 to 4 dry or moist
SAR: 0 to 10
Reaction: moderately alkaline or strongly alkaline
Bw horizon:
Value: 5 or 6 dry, 4 or 5 moist
Chroma: 3 to 6 dry or moist
Texture: loam or gravelly sandy clay loam
Calcium carbonate equivalent: 5 to 15 percent
SAR: 0 to 5
Reaction: moderately alkaline or strongly alkaline
Bk or 2Bk horizon:
Hue: 7.5YR or 10YR
Value: 7 or 8 dry, 6 or 7 moist
Chroma: 4 to 6 dry or moist
Calcium carbonate equivalent: 10 to 20 percent in the upper Bk and 15 to 40 percent in the lower Bk
SAR: 0 to 5
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING:
Parent material: alluvium derived from sandstone, shale, limestone and quartzite rocks
Landform: strath terraces.
Slopes: 1 to 3 percent
Elevation: 4,700 to 5,400 feet
Mean annual air temperature: 45 to 47 degrees F.
Mean annual precipitation: 5 to 8 inches
Frost-free period: 110 to 125 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Blackston, Utaline, and Boreham series.
Blackston and Utaline soils do not have an irrigation induced water tables.
Boreham soils do not have a skeletal particle-size control section.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained, low runoff, moderately slow permeability.
USE AND VEGETATION: The major uses are for irrigated pasture.
DISTRIBUTION AND EXTENT: Northeastern Utah. LRR D, MLRA 34. This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Uintah County, Uintah Area Soil Survey, Utah. 1998.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 10 to 40 inches. (Bw, Bk1, Bk2, and Bk3 horizons)
Ochric epipedon: The zone from 0 to 9 inches. (A1 and A2 horizons)
Cambic horizon: The zone from 5 to 18 inches. (A2 and Bw horizons)
Calcic horizon: The zone from 25 to 60 inches. (Bk2, Bk3, Bk4 horizons)
Endosaturation: 18 to 40 inches to irrigation induced saturation during the months of May through December
The CEC activity class was inferred from laboratory data from similar soils in the Uintah Area Soil Survey.
Taxonomic version: Eighth Edition, 1998.