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; 8 percent clay; slightly effervescent; 12 percent gravel; neutral (pH 7.1); abrupt smooth boundary.
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; 20 percent clay; common distinct clay films on faces of peds and in pores; slightly effervescent; 8 percent gravel; neutral (pH 7.3); clear wavy boundary.
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; 26 percent clay; common faint clay films on faces of peds and in pores; strongly effervescent; 23 percent gravel; slightly alkaline(pH 7.6); clear wavy boundary.
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; 15 percent clay; soft masses of carbonate; strongly effervescent; 34 percent gravel and 5 percent cobbles; slightly alkaline (pH 7.7).
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; 12 percent clay; strongly effervescent; 41 percent gravel and 5 percent cobbles; slightly alkaline (pH 7.8).
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 43 minutes 33 seconds N., longitude 112 degrees 9 minutes 45 seconds W.; NAD 27.
RANGE IN CHARACTERISTICS:
Soil moisture - Usually dry, but are continually moist in all parts of the moisture control section for 60 to 75 days within the 4 months following the winter solstice, and dry for 60 to 80 consecutive days in normal years in all parts within the 3 months following the summer solstice; aridic moisture regime that borders on xeric.
Mean annual soil temperature - 9.5 to 12 degrees C.
Mean summer soil temperature - 21 to 23 degrees F.
Argillic horizon bottom depth - 30 to 89 cm.
Depth to secondary carbonates - 25 to 50 cm.
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 or 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: Neutral to 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: 0 to 3 percent.
Reaction: Slightly alkaline to moderately alkaline.
Sodicity: SAR 1 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: 0 to 45 percent, mostly gravel.
Effervescence: Strongly effervescent to violently effervescent.
Calcium carbonate equivalent: 0 to 3 percent.
Reaction: Moderately alkaline to strongly alkaline.
Sodicity: SAR 1 to 5.
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: 0 to 50 percent, mainly gravel.
Effervescence: Slightly effervescent to violently effervescent.
Calcium carbonate equivalent: 0 to 3 percent.
Reaction: Moderately alkaline to strongly alkaline.
Sodicity: SAR 3 to 10.
COMPETING SERIES: These are the Abgese (NV), Ackley (NV), Blacknest (ID), Bluelight (T WA), Colbar (NV), Eusbio (T ID), Greenbrae (NV), Hardtrigger (ID), Harsan (ID), Hoosegow (ID), Lankbush (ID), Morfitt (T OR), Nosser (T WA), Shawave (NV), Sidlake (ID), Stiles (T CA), Turria (NV) and Windypoint (ID) Series. Bluelight, Colbar, Eusbio, Nosser, Sidlake, and Stiles 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 1890 meters. Hoye soils are on fan remnants and fan skirts. Slopes range from 0 to 8 percent. These soils formed in alluvium weathered from intermediate and basic volcanic rocks. The climate is semiarid, and the average annual precipitation is 203 to 300 mm. The mean annual air temperature is 8 to 11 degrees C. The mean summer temperature is 20.5 to 22 degrees F, and the freeze-free period is 90 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Bertelson,
Hiko Peak,
Monroe, and Povertyflat soils.
Bertelson and Hiko Peak soils lack argillic horizons and have calcic horizons. Bertelson soils are coarse-loamy and Hiko Peak soils are loamy-skeletal.
Monroe soils have a mollic epipedon 20 or more inches thick.
Povertyflat soils have a mollic epipedon and are loamy-skeletal
DRAINAGE AND PERMEABILITY: Well drained, medium runoff, moderate or moderately slow permeability; Saturated hydraulic conductivity class is moderately high.
USE AND VEGETATION: These soils are used for irrigated cropland and rangeland. 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 OFFICE RESPONSIBLE: Reno, Nevada.
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 18 cm (A horizon).
Argillic horizon - the zone of clay accumulation from 13 to 43 cm (Bt and Btk horizons).
Particle-size control section - the zone from 13 to 43 cm.
Additional data - National Soil Survey Laboratory pedon number 93P0042 (S82UT041001) is available for the current type location.