LOCATION WUBY UT

Established Series
Rev. CSW/JWB
03/2011

WUBY SERIES

The Wuby series consists of shallow, well drained soils that formed in colluvium derived from quartzite and sandstone. Wuby soils are on canyon walls and mountain slopes. Slopes range from 40 to 75 percent. Mean annual precipitation is about 48 cm and the mean annual temperature is about 4.5 degrees C.

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, frigid Lithic Haplustolls

TYPICAL PEDON: Wuby very cobbly fine sandy loam, on a north-northwest facing, convex, 52 percent slope in woodland at an elevation of 2393 meters. (Colors are for dry soil unless otherwise noted.) When described on June 25, 1991 the soil was slightly moist from 1 to 49 cm. The surface is covered by 8 percent stones, 15 percent cobbles and 15 percent gravel.

Oi--0 to 1 cm; needles and twigs. (0 to 3 cm thick)

A--1 to 24 cm; brown (10YR 5/3) very cobbly fine sandy loam, dark brown (10YR 3/3), moist; weak fine granular structure; soft, very friable, slightly sticky and slightly plastic; few coarse, common medium and fine and many very fine roots; 8 percent stones, 15 percent cobbles, 15 percent gravel; noneffervescent; neutral (pH 7.3); clear wavy boundary. (12 to 25 cm thick)

Bw--24 to 38 cm; brown (10YR 5/3) very cobbly fine sandy loam, brown (10YR 4/3), moist; weak fine subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; few coarse and common medium, fine and very fine roots; 10 percent stones, 15 percent cobbles, 20 percent gravel; noneffervescent in matrix, few patches of very slightly calcareous material in lower part; slightly alkaline (pH 7.6); abrupt wavy boundary. (0 to 14 cm thick)

C--38 to 49 cm; light yellowish brown (10YR 6/4) very stony loam, brown (7.5YR 4/4), moist; massive; slightly hard, very friable, slightly sticky and slightly plastic; few coarse and common medium, fine and very fine roots; 20 percent stones, 20 percent cobbles, 15 percent gravel; slightly effervescent, carbonates are finely disseminated; slightly alkaline (pH 7.8); abrupt irregular boundary. (5 to 15 cm thick)

R--49 to 59 cm; quartzite bedrock.

TYPE LOCATION: Emery County, Utah; about 3.2 kilometers (2 miles) east-northeast of Lila Point; located about 1,000 feet east and 100 feet south of the NW corner of sec. 1, T. 16 S., R. 14 E.; Lila Point USGS quad; lat. 39 degrees 28 minutes 7.1 seconds N. and long. 110 degrees 18 minutes 42.8 seconds W., NAD 83

RANGE IN CHARACTERISTICS:
Soil moisture: Soil moisture control section is usually moist in some part during late spring to early fall, and intermittently dry in late fall; Ustic moisture regime.
Mean annual soil temperature: 4.4 to 6.7 degrees C
Mean summer soil temperature: 11.7 to 13.9 degrees C
Depth to lithic contact: 25 to 51 cm to bedrock, lithic
Thickness of the mollic epipedon: 18 to 30 cm

Particle-size control section (weighted averages):
Clay content: 18 to 25 percent
Rock fragment content: 35 to 60 percent

A horizon:
Hue: 7.5YR or 10YR
Value: 3 to 5 dry; 2 or 3 moist
Chroma: 2 or 3 dry or moist
Texture: very bouldery, very stony or very cobbly fine sandy loam
Clay content: 12 to 20 percent
Rock fragments: 35 to 60 percent total; 0 to 15 percent boulders, 0 to 20 percent stones, 0 to 25 percent cobbles, 10 to 35 percent gravel
EC (mmhos/cm): 0 to 2
Reaction: pH 6.6 to 7.8

Bw horizon (where present):
Hue: 7.5YR or 10YR
Value: 5 or 6 dry; 3 or 4 moist
Chroma: 3 or 4 dry or moist
Texture: very stony or very cobbly fine sandy loam
Clay content: 18 to 20 percent
Rock fragments: 35 to 60 percent total; 5 to 15 percent stones, 10 to 25 percent cobbles, 15 to 25 percent gravel
Calcium carbonate equivalent: 0 to 5 percent
EC (mmhos/cm): 0 to 2
Reaction: pH 6.6 to 7.8

C horizon:
Hue: 7.5YR or 10YR
Value: 5 to 7 dry; 3 to 5 moist
Chroma: 2 to 4 dry or moist
Texture: very stony loam, very stony fine sandy loam, extremely stony sandy loam
Clay content: 18 to 25 percent
Rock fragments: 35 to 75 percent total; 0 to 15 percent boulders, 5 to 35 percent stones, 5 to 25 percent cobbles, 5 to 35 percent gravel
Calcium carbonate equivalent: 0 to 5 percent
EC (mmhos/cm): 0 to 2
Reaction: pH 6.6 to 7.8

COMPETING SERIES: These are the Castner (MT), Catgulch (MT), Celeste (CO), Duffymont (CO), Firo (NM), Highpark (T)(CO), Moonset (UT), Nivean (MT), Paunsaugunt (UT), Vershal (MT) and Whitlash series.
Castner soils have Bk horizons and 10 to 18 percent clay in the particle-size control section.
Catgulch soils have a paralithic contact over a lithic contact with granite.
Celeste soils have hue of 5YR through 10R and are formed in rhyolite.
Duffymont soils have 10 to 18 percent clay in the particle-size control section and range to include 5YR hue.
Firo soils formed in acid igneous bedrock.
Highpark soils formed in volcanic breccia, have 1 to 5 percent volcanic glass and have 10 to 18 percent clay in the particle-size control section.
Moonset soils have an ustic soil moisture regime bordering on aridic, and are calcareous throughout.
Nivean soils formed in welded tuff or rhyolite and have 5 to 30 percent volcanic glass in one or more horizons.
Paunsaugunt soils are calcareous throughout and are formed in limestone and calcareous sandstone.
Vershal soils do not have a C horizon, rock fragments are dominantly channers, and formed in igneous or sedimentary rock.
Whitlash soils formed in igneous and noncalcareous sandstone bedrock and the soil moisture control section receives peak precipitation in May and June.

GEOGRAPHIC SETTING:
Parent material: colluvium derived from quartzite and sandstone, principally from the Mesaverde Group
Landform: canyon walls, mountainsides
Slopes: 40 to 75 percent
Elevation: 2,073 to 2,804 meters; at higher elevations, occurs on south aspects
Mean annual temperature: 3.3 to 5.6 degrees C
Mean annual precipitation: 40.6 to 5.59 cm
Precipitation pattern: Wettest months are May to October and driest months are February to April.
Frost-free period: 60 to 90 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the very deep Datino, Longabaugh and Northorn series. The Datino soils formed in calcareous sandstone and shale and have cambic and calcic horizons. Longabaugh and Northorn soils have a cryic temperature regime and are on north aspects under denser stands of Douglas-fir and aspen. The Longabaugh soils have horizons with secondary carbonate accumulation. The Northorn soils have an argillic horizon and a calcic horizon.

DRAINAGE AND PERMEABILITY: Well drained, moderate permeability, high saturated hydraulic conductivity.

USE AND VEGETATION: Used for rangeland and wildlife habitat. Existing vegetation consists of scattered Douglas-fir, Rocky Mountain juniper, Utah serviceberry, Pinyon pine, mountain mahogany, snowberry, Salina wildrye, slender wheatgrass and bluegrass.

DISTRIBUTION AND EXTENT: Mountains of central Utah, Southern Rocky Mountains; LRR E, MLRA 48A; small extent; about 2,600 hectares (6,600 acres) mapped in Carbon, Emery and Sevier Counties, Utah.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana

SERIES ESTABLISHED: Emery County, Utah, Emery Area, Utah, 2011, Parts of Emery, Carbon, Grand and Sevier Counties. The name is coined.

REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Series control section: The zone from 1 to 49 cm.
Particle-size control section: The zone from 26 to 49 cm. (part of Bw and entire C horizon)
Mollic epipedon: The zone from 1 to 38 cm. (A and Bw horizons)
Lithic contact: The contact with quartzite at 49 cm. (R horizon)

The assignment of the cation-exchange activity class is inferred from lab data from similar soils in the surrounding area.

Taxonomic Version: Classified according to Keys to Soil Taxonomy, Eleventh Edition, 2010.

National Cooperative Soil Survey
U.S.A.