LOCATION NAKOY UTEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, mesic Typic Haplocalcids
TYPICAL PEDON: Nakoy loamy fine sand, on a west facing, undulating, 4 percent slope in rangeland at an elevation of 4,840 feet. (Colors are for dry soil unless otherwise noted.)
A1--0 to 3 inches; brown (7.5YR 5/3) loamy fine sand, brown (7.5YR 4/3) moist; weak thin platy structure; soft, very friable, nonsticky and nonplastic; few fine roots; few fine and very fine interstitial pores; very slight effervescence (1 percent calcium carbonate equivalent), carbonates are disseminated; moderately alkaline (pH 8.0); clear smooth boundary. (2 to 9 inches thick)
A2--3 to 14 inches; light brown (7.5YR 6/4) loamy fine sand, brown (7.5YR 4/4) moist; massive; loose, nonsticky and nonplastic; few fine roots; few fine and very fine interstitial pores; very slight effervescence (3 percent calcium carbonate equivalent), carbonates are disseminated; moderately alkaline (pH 8.2); gradual smooth boundary. (0 to 16 inches thick)
Bw--14 to 25 inches; light brown (7.5YR 6/4) sandy loam, brown (7.5YR 5/4) moist; massive; loose, nonsticky and nonplastic; few fine roots; few fine and very fine tubular pores; slight effervescence (5 percent calcium carbonate equivalent), carbonates are disseminated; moderately alkaline (pH 8.4); clear smooth boundary. (11 to 16 inches thick)
Bk1--25 to 41 inches; pink (7.5YR 7/3) sandy loam, light brown (7.5YR 6/4) moist; massive; soft, very friable, nonsticky and nonplastic; few fine roots; few fine, common very fine tubular pores; 5 percent gravel; slight effervescence (10 percent calcium carbonate equivalent), carbonates are disseminated and segregated as coatings on gravel, and as few irregular medium masses; moderately alkaline (pH 8.4); gradual smooth boundary. (9 to 20 inches thick)
Bk2--41 to 65 inches; pink (7.5YR 8/3) sandy loam, light brown (7.5YR 6/4) moist; massive; soft, very friable, nonsticky and nonplastic; few fine roots; few fine, common very fine tubular pores; 5 percent gravel; strong effervescence (16 percent calcium carbonate equivalent), carbonates are disseminated and segregated as coatings on gravel, and in common irregular medium and coarse masses; strongly alkaline (pH 9.0); gradual smooth boundary. (0 to 38 inches thick)
Bk3--65 to 72 inches; light brown (7.5YR 7/3) sandy loam, light brown (7.5YR 6/3) moist; massive; soft, very friable, nonsticky and nonplastic; 10 percent gravel; strong effervescence (13 percent calcium carbonate equivalent), carbonates are disseminated and segregated as coatings on gravel, and in common irregular medium masses; strongly alkaline (pH 8.8); gradual smooth boundary. (0 to 18 inches thick)
BCk--72 to 80 inches; light brown (7.5YR 6/4) sandy loam, brown (7.5YR 5/3) moist; massive; soft, very friable, nonsticky and nonplastic; 15 percent gravel; strong effervescence (9 percent calcium carbonate equivalent), carbonates are disseminated and segregated as 1 mm thick coatings on some rock fragments; strongly alkaline (pH 8.8).
TYPE LOCATION: Uintah County, Utah; about 1.5 miles south and 1 mile east of Leota, Utah; located about 1,600 feet south and 2,500 feet east of the northwest corner of sec. 35, T. 7 S., R. 20 E., SLBM.; Pelican Lake, Utah USGS quad; lat. 40 degrees 10 minutes 6 seconds N. and long. 109 degrees 38 minutes 6 seconds W., NAD 27
RANGE IN CHARACTERISTICS:
Soil moisture: The soil moisture control section is affected by precipitation that falls throughout the year, with a slight increase in late summer and fall. The moisture regime is typic aridic.
Mean annual soil temperature: 47 to 49 degrees F.
Depth to cambic horizon: 2 to 25 inches
Depth to calcic horizon: 20 to 36 inches
Particle-size control section: 8 to 18 percent clay; 0 to 15 percent subrounded gravel from sandstone and quartzite.
A horizon:
Hue: 7.5YR or 10YR
Value: 5 or 6 dry, 4 or 5 moist
Chroma: 2 to 4 dry or moist
Calcium carbonate equivalent: 1 to 10 percent
Reaction: moderately alkaline or strongly alkaline
Bw horizon:
Hue: 7.5YR or 10YR
Value: 6 or 7 dry, 4 or 5 moist
Chroma: 4 to 6 dry or moist
Texture: sandy loam or fine sandy loam
Calcium carbonate equivalent: 1 to 15 percent
Reaction: moderately alkaline or strongly alkaline
Bk horizon:
Hue: 7.5YR or 5YR
Value: 6 to 8 dry, 5 to 7 moist
Chroma: 2 to 6 dry or moist
Texture: sandy loam or fine sandy loam
Rock fragments: 0 to 20 percent
Calcium carbonate equivalent: 5 to 30 percent
Reaction: moderately alkaline or strongly alkaline
BCk horizon:
Hue: 7.5YR or 10YR
Value: 6 or 7 dry, 4 or 5 moist
Chroma: 2 to 4 dry or moist
Texture: sandy loam or loamy sand
Calcium carbonate equivalent: 5 to 10 percent
Reaction: moderately alkaline or strongly alkaline
COMPETING SERIES: Current competitors are the Boreham, Kinan, Nolava, Pagina and Riemod series. Competitors prior to the Eighth Edition, 1998 Keys to Soil Taxonomy are the Bluechief, Chroder, Hiko Springs, Kaito, McCutchen, Moffat, Nageezi, Nuahs, and Trook series.
Bluechief soils have bedrock at 20 to 40 inches.
Boreham, Nolava and Riemod soils have more than 18 percent total clay in the particle-size control section.
Chroder, Nageezi and Moffat soils have a calcic horizon that occurs at a depth of less than 20 inches.
Hiko Springs, Kinan and Trook soils have 15 to 35 percent rock fragments in the particle-size control section.
Kaito soils have a paralithic contact at 40 to 60 inches.
McCutchen, Nakai and Nuahs soils have a mean annual soil temperature of 54 to 59 degrees F.
Pagina soils have a paralithic contact at 20 to 40 inches.
GEOGRAPHIC SETTING:
Parent material: eolian materials over alluvium derived from sedimentary and metamorphic rocks
Landform: fan remnants
Slopes: 0 to 5 percent
Elevation: 4,700 to 5,300 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, Ohtog, Shotnick, and the competing Nolava series.
Blackston soils are on fan remnants and have a loamy-skeletal particle-size control section.
Ohtog soils are on alluvium flats and have a fine-loamy particle-size control section.
Shotnick soils are on alluvial fan and do not have a calcic horizon.
DRAINAGE AND PERMEABILITY: Well drained, nominal or very low runoff, moderately rapid permeability.
USE AND VEGETATION: Nakoy soils are used for irrigated cropland, rangeland, recreation, and wildlife habitat. Commonly grown crops are alfalfa, small grains and corn. Potential native vegetation is Indian ricegrass, galleta, globemallow, fourwing saltbush, and shadscale. This soil has been correlated to the Desert Sandy Loam (Indian ricegrass) - 034XY115UT range site in Utah
DISTRIBUTION AND EXTENT: Northeast Utah. LRR D, MLRA 34. This series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Uintah County, Uintah Area Soil Survey, Utah. 1997. The name is coined.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 10 to 40 inches. (A2, Bw, and Bk1 horizons)
Ochric epipedon: The zone from surface to 14 inches. (A1, A2 horizons)
Cambic horizon: The zone from 14 to 25 inches. (Bw horizon)
Calcic horizon: The zone from 25 to 72 inches. (Bk1, Bk2, Bk3 horizons)
Taxonomic version: Eighth Edition, 1998.
The cation exchange activity class was inferred from laboratory data from similar soils in the Uintah Area Soil Survey.