LOCATION HOYE UTEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Xeric Haplargids
TYPICAL PEDON: Hoye coarse sandy loam - rangeland. (Colors are for air dry soil unless otherwise noted.)
A-- 0 to 13 cm; brown (10YR 4/3) coarse sandy loam, pale brown (10YR 6/3) dry; moderate fine granular structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine and fine roots and few medium and coarse; many very fine and fine interstitial pores; slightly effervescent; 12 percent gravel; slightly alkaline (pH 7.7); abrupt smooth boundary. (5 to 18 cm thick)
Bt-- 13 to 30 cm; dark yellowish brown (10YR 4/4) sandy clay loam, light yellowish brown (10YR 6/4) dry; moderate fine and medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine roots and common fine and few medium and coarse; many very fine tubular pores and common fine tubular pores; common distinct clay films on faces of peds and in pores; slightly effervescent; 8 percent gravel; moderately alkaline (pH 7.9); clear wavy boundary. (10 to 36 cm thick)
Btk-- 30 to 43 cm; brown (7.5YR 4/4) gravelly sandy clay loam, light brown (7.5YR 6/4) dry; moderate fine and medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine and fine roots and few medium; many very fine tubular pores and common fine tubular pores; carbonates are disseminated; common faint clay films on faces of peds and in pores; strongly effervescent (1 percent calcium carbonate); 23 percent gravel; moderately alkaline(pH 8.1); clear wavy boundary. (23 to 48 cm thick)
Bk-- 43 to 81 cm; brown (7.5YR 5/4) very gravelly coarse sandy loam, light brown (7.5YR 6/4) dry; weak fine subangular blocky structure; hard, firm, weakly cemented, nonsticky and nonplastic; common very fine and fine roots; carbonate coatings on peds; soft masses of carbonate; strongly effervescent (3 percent calcium carbonate); 35 percent gravel and 5 percent cobbles; moderately alkaline (pH 8.4). (38 to 76 cm thick)
C-- 81 to 152 cm; brown (7.5YR 5/4) very gravelly coarse sandy loam, light brown (7.5YR 6/4) dry; massive; soft, very friable, nonsticky and nonplastic; few very fine and fine roots; strongly effervescent (1 percent calcium carbonate); 36 percent gravel and 5 percent cobbles; strongly alkaline (pH 8.5).
TYPE LOCATION: Sevier County, Utah; 4 miles southwest of Monroe along Jones Road; SE 1/4 of Section 31, Township 25S, Range 3W; latitude 38 degrees 34 minutes 33 seconds N and longitude 112 degrees 9 minutes 48 seconds W; NAD 83.
RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry; moist in winter and spring and for brief periods in late summer due to convection storms; aridic bordering on xeric soil moisture regime
Mean annual soil temperature: 9.0 to 12 degrees C.
Mean summer soil temperature: 21 to 23 degrees C.
Argillic horizon bottom depth: 30 to 89 cm.
Depth to secondary carbonates: 25 to 50 cm.
Particle-size control section - Clay content: 20 to 30 percent weighted average.
Rock fragments: 0 to 35 percent weighted average; lithology of fragments is volcanic rocks.
Ap and A horizons
Hue: 10YR or 7.5YR.
Value: 4 to 6 dry, 3 or 4 moist.
Chroma: 2 to 4.
Effervescence: Noneffervescent to slightly effervescent.
Reaction: Neutral to moderately alkaline.
Other features: Colors dry and moist do not meet the requirement for mollic epipedons when the upper 18 cm are mixed.
Bt horizons
Hue: 10YR or 7.5YR.
Value: 4 to 6 dry, 3 to 5 moist.
Chroma: 2 to 4, dry or moist
Texture: Sandy clay loam, clay loam.
Clay content: 20 to 35 percent.
Rock fragments: 0 to 35 percent, mostly gravel.
Effervescence: Noneffervescent to slightly effervescent.
Calcium carbonate equivalent: 0 to 3 percent.
Reaction: Slightly alkaline or moderately alkaline.
Btk horizons, when present
Hue: 10YR or 7.5YR.
Value: 5 to 7 dry, 4 or 6 moist.
Chroma: 2 to 4, dry or moist.
Texture: Sandy clay loam, or clay loam.
Clay content: 20 to 30 percent.
Rock fragments: 0 to 35 percent, mostly gravel.
Effervescence: Slightly effervescent to strongly effervescent.
Calcium carbonate equivalent: 1 to 5 percent.
Reaction: Slightly alkaline or moderately alkaline.
Sodicity: SAR 0 to 5.
Bk or BCk horizons, when present
Hue: 10YR or 7.5YR.
Value: 5 to 7 dry, 4 or 6 moist.
Chroma: 2 to 4, dry or moist.
Texture: Sandy loam, loam, or coarse sandy loam.
Clay content: 10 to 20 percent.
Rock fragments: mainly 15 to 50 percent; some pedons have less than 15 percent, mostly gravel.
Effervescence: Strongly effervescent to violently effervescent.
Calcium carbonate equivalent: 1 to 10 percent.
Reaction: Moderately alkaline or strongly alkaline.
Sodicity: SAR 1 to 10.
C horizons
Hue: 10YR or 7.5YR.
Value: 4 to 7 dry, 3 to 6 moist.
Chroma: 2 to 4, dry or moist.
Texture: Sandy loam, loam or coarse sandy loam.
Clay content: 10 to 20 percent.
Rock fragments: mainly 15 to 50 percent; some pedons have less than 15 percent, mostly gravel.
Effervescence: Slightly effervescent to violently effervescent.
Calcium carbonate equivalent: 1 to 5 percent.
Reaction: Moderately alkaline or strongly alkaline.
Sodicity: SAR 1 to 10.
COMPETING SERIES: These are the Abgese, Ackley, Blacknest, Bluelight, Colbar, Eusbio, Greenbrae, Hardtrigger, Harsan, Hoosegow, Lankbush, Morfitt, Nosser, Shawave, Sidlake, Turria and Windypoint series.
Bluelight, Colbar, Eusbio, Nosser, and Sidlake soils are moderately deep to bedrock. Abgese soils have 35 to 60 percent rock fragments in the Btk horizon. Ackley soils do not have Btk horizons and have nongravelly Bk horizons. Blacknest and Windypoint have lithologic discontinuities of sand and gravel at 50 to 100 cm. Greenbrae soils have lithologic discontinuities at 102 cm and are noncalcareous to 76 cm. Hardtrigger soils have 5 to 15 percent calcium carbonate in the Bk horizon. Harsan soils are deep over duripans. Hoosegow, Lankbush and Morfitt soils are noncalcareous to 100 cm or more. Shawave soils have rock fragments with granitic lithology and a mean annual soil temperature of 12 to 13 degrees C. Turria soils are noncalcareous to 76 cm or more and C horizons that are stratified very fine sandy loam to silt loam.
GEOGRAPHIC SETTING: Hoye soils are at elevations of 1,640 to 2,290 meters. Hoye soils are on hillslopes, fan remnants and fan skirts. Slopes range from 0 to 50 percent. These soils formed in alluvium and colluvium weathered from intermediate and basic volcanic rocks. The climate is semiarid, and the average annual precipitation is 200 to 300 mm. The mean annual air temperature is 8 to 11 degrees C. The mean summer temperature is 20.5 to 22 degrees C, and the freeze-free period is 90 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Escalante, Hiko Peak, Monroe, and Povertyflat soils. Escalante and Hiko Peak soils do not have argillic horizons and have calcic horizons. Escalante soils are coarse-loamy and Hiko Peak soils are loamy-skeletal. Monroe soils have a mollic epipedon 50 or more cm thick. Povertyflat soils have a mollic epipedon and are loamy-skeletal
DRAINAGE AND PERMEABILITY: Well drained, medium runoff, moderate or moderately slow permeability; moderately high saturated hydraulic conductivity.
USE AND VEGETATION: These soils are used for irrigated cropland and livestock grazing. Principal crops are alfalfa, small grains and corn silage. Native vegetation is shadscale, Indian ricegrass, cheatgrass, bottlebrush squirreltail, Russian thistle, and Wyoming big sagebrush.
DISTRIBUTION AND EXTENT: Southwest and central Utah; MLRA 28A. The series is moderately extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona.
SERIES ESTABLISHED: Mason Valley Soil Conservation District, Nevada, 1940.
REMARKS: Classification changed from Xeralfic Haplargid to Xeric Haplargids in 9/94. December 2008, the type location is moved to better represent the series.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the surface of the soil to 13 cm (A horizon).
Argillic horizon - The zone of clay accumulation from 13 to 43 cm (Bt and Btk horizons).
Secondary carbonates - The zone of secondary carbonates from 43 to 81 cm (Bk horizon).
Particle-size control section - The zone from 13 to 43 cm (Bt and Btk horizons).
ADDITIONAL DATA: National Soil Survey Laboratory pedon number 93P0042 (S82UT041001) is available for the current type location.
Previous authors include RSJ/VLP/MJD.