LOCATION JUBILEE NVEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, mesic Typic Endoaquolls
TYPICAL PEDON: Jubilee loam--pasture. (Colors are for moist soil unless otherwise noted).
A1--0 to 5 inches; very dark brown (10YR 2/2) loam, dark gray (10YR 4/1) dry; massive; slightly hard, very friable, slightly sticky and slightly plastic; many fine and fine roots, many very fine and fine tubular pores; neutral (pH 6.8); clear smooth boundary (3 to 5 inches thick)
A2--5 to 15 inches; very dark gray (10YR 3/1) fine sandy loam, dark gray (10YR 4/1) dry; massive; hard, very friable, slightly sticky and nonplastic; many very fine and fine roots; many very fine and fine interstitial pores; many fine prominent dark reddish brown (5YR 3/3) masses of iron accumulation; neutral (pH 6.8); abrupt smooth boundary. (10 to 14 inches thick)
AC--15 to 19 inches; very dark brown (10YR 2/2) fine sandy loam, grayish brown (10YR 5/2) dry; massive; slightly hard, very friable, slightly sticky and nonplastic; Common fine and many very fine roots; many very fine interstitial pores; many coarse distinct dark reddish brown (5YR 3/3) masses of iron accumulation; neutral (pH 6.8); clear smooth boundary. (4 to 8 inches thick)
Cg1--19 to 37 inches; olive (5Y 4/3) sandy loam, pale olive (5Y 6/3) dry; massive; slightly hard, very friable, slightly sticky and nonplastic; few very fine and fine roots, few very fine and fine tubular pores; many coarse prominent yellowish red (5YR 5/6) and dark reddish brown (5YR 3/4) masses of iron accumulation; neutral (pH 6.8); clear irregular boundary. (6 to 10 inches thick)
Cg2--37 to 45 inches; olive gray (5Y 4/2) loamy fine sand, olive (5Y 5/3) dry; massive; slightly hard, very friable, nonsticky and nonplastic; few very fine roots; many very fine interstitial pores; many mica grains; neutral (pH 6.8); clear irregular boundary. (5 to 9 inches thick)
Cg3--45 to 60 inches; olive gray (5Y 4/2) coarse sand, light olive gray (5Y 6/2) dry; single grain; loose, nonsticky and nonplastic; few very fine roots; many very fine and fine interstitial pores; common mica grains; neutral (pH 6.8).
TYPE LOCATION: Douglas County, Nevada; in Carson Valley along the West Fork of the Carson River; about 2,600 feet north and 2,400 feet east of the southwest corner of section 29, T. 12 N., R. 20 E.; USGS Woodfords 7.5 minute topographic quadrangle; 38 degrees 52 minutes 27 seconds north latitude and 119 degrees 45 minutes 37 seconds west longitude, NAD 27.
RANGE IN CHARACTERISTICS:
Soil moisture - Usually saturated in some part of the moisture control section during winter and spring, dry in all parts in summer and fall unless irrigated; seasonal periods of aquic moisture regime between December and June during saturation with ground water and anaerobic conditions; an aridic moisture regime exists during the growing season in normal years after ground water levels drop below the moisture control section.
Mean annual soil temperature - 48 to 53 degrees F.
Mollic epipedon thickness - 12 to 23 inches.
Depth to horizons with aquic conditions - 0 to 20 inches.
Control section - Clay content: 6 to 18 percent; Rock fragments: 0 to 10 percent, mainly pebbles.
Effervescence - Usually noneffervescent; some pedons have thin strata that are slightly effervescent to strongly effervescent.
Other features - Few to many mica flakes are percent, but in amounts less than 65 percent by grain count.
A horizons - Hue: 10YR or 2.5Y.
Value: 2 or 3 moist, 4 or 5 dry.
Chroma: 1 or 2, moist or dry.
Reaction: Slightly acid to moderately alkaline.
Organic matter content: 1 to 5 percent.
Redoximorphic features: Distinct or prominent redox concentrations occur as masses of iron accumulation in some subhorizons.
AC horizon - Hue: 10YR or 2.5Y.
Value: 2 or 3 moist, 4 or 5 dry.
Chroma: 1 or 2, moist or dry.
Texture: Stratified coarse sandy loam to fine sandy loam.
Reaction: Slightly acid to moderately alkaline.
Organic matter content: 1 to 5 percent.
Redoximorphic features: Distinct or prominent redox concentrations occur as masses of iron accumulation.
Cg horizons - Hue: 2.5Y or 5Y.
Value: 2 through 4 moist, 5 or 6 dry.
Chroma: 1 through 3, moist or dry.
Texture: Stratified coarse sandy loam to fine sandy loam in upper subhorizons and stratified coarse sand to sandy loam in lower horizons; Some pedons have clay or very gravelly sand below depths of 40 inches.
Reaction: Slightly acid to slightly alkaline.
Redoximorphic features: Distinct or prominent redox concentrations occur as masses of iron accumulation; Redox depletion of iron is present as the gleyed, low chroma matrix.
COMPETING SERIES: These are the Dassel, Gilford, Goodell, Lyles, Monon, Overshue, Toolesboro, and Whitepost series. Potential competitors in a similar family are the Corunna, Darfur, Hanska, Uniongrove, and Zadog series.
All these soils are in areas of much higher precipitation and do not have an aridic moisture regime.
GEOGRAPHIC SETTING: Jubilee soils are on swales, flood plains, and sloughs on the toes of alluvial fans. These soils formed in alluvium derived from mixed sources but with a significant influence from granitic rocks. Slopes are 0 to 4 percent. Elevations range from 4,700 to 5,400 feet. The climate is semiarid with cool, moist winters and warm, dry summers. The mean annual precipitation is 8 to 12 inches, mean annual temperature is 46 to 51 degrees F., and the frost-free period is 90 to 110 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Ophir, Settlemeyer, and Voltaire soils. Ophir soils are sandy. Settlemeyer are fine-loamy. Voltaire soils are fine-loamy and calcareous.
DRAINAGE AND PERMEABILITY: Poorly drained and very poorly drained; very low to high surface runoff; moderately rapid permeability. Endosaturation is present with an apparent seasonal high water table between the soil surface and 2.5 feet (very shallow to moderately deep free water occurrence classes) from December through June. Cumulative annual duration classes are Common or Persistent. These soils are susceptible to occasional flooding for brief periods between December and May or rare flooding for very brief periods year-round.
USE AND VEGETATION: Jubilee soils are used for pasture and meadow hay production. The vegetation is composed of sedges, various clovers, Nevada bluegrass, beardless wildrye, meadow barley, streambank wheatgrass, and Juncus spp.
DISTRIBUTION AND EXTENT: Western Nevada. These soils are not extensive. MLRA 26.
MLRA OFFICE RESPONSIBLE: Reno, Nevada.
SERIES ESTABLISHED: Carson City Area, Nevada, 1975.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - The zone from the soil surface to 19 inches (A1, A2, and AC horizons).
Aquic conditions - The conditions of endosaturation and reduction in horizons between the soil surface and 60 inches at certain times in normal years (A1, A2, AC, Cg1, Cg2, and Cg3 horizons).
Particle size control section - the zone from 10 to 40 inches (AC and Cg1 horizons and parts of the A2 and Cg2 horizons).