LOCATION HAYBOURNE               NV+CA UT

Established Series
Rev. WED-EWB-JVC-JBF
05/2016

HAYBOURNE SERIES

The Haybourne series consists of very deep, well drained soils that formed in alluvium derived from granitic rocks or from mixed sources. Haybourne soils are on inset fans, alluvial fans, fan remnants, ballenas, lake terraces, fan skirts, and fan aprons. Slopes are 0 to 30 percent. The mean annual precipitation is about 250 mm and the mean annual temperature is about 10 degrees C.

TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, mesic Xeric Haplocambids

TYPICAL PEDON: Haybourne loam--rangeland. (Colors are for dry soil unless otherwise noted.)

A1--0 to 8 cm; pale brown (10YR 6/3) loam, dark brown (10YR 3/3) moist; moderate medium and coarse platy structure; soft, friable, slightly sticky and nonplastic; few very fine roots; many fine and medium vesicular pores; neutral (pH 6.6); abrupt smooth boundary. (3 to 10 cm thick)

A2--8 to 15 cm; brown (10YR 5/3) loam, dark brown (10YR 3/3) moist; weak medium platy structure; soft, friable, slightly sticky and nonplastic; common very fine and common fine roots; many very fine and fine vesicular pores; neutral (pH 6.7); abrupt smooth boundary. (0 to 15 cm thick)

Bw1--15 to 38 cm; brown (10YR 5/3) sandy loam, brown (10YR 4/3) moist; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky and nonplastic; common fine and very fine roots; few fine tubular, and many very fine and fine interstitial pores; neutral (pH 6.7); clear smooth boundary. (15 to 25 cm thick)

Bw2--38 to 64 cm; brown (10YR 5/3) sandy loam, brown (10YR 4/3) moist; weak fine and medium subangular blocky structure; hard, friable, slightly sticky and nonplastic; common very fine and fine roots; many fine and very fine interstitial pores; common faint clay bridges between sand grains; neutral (pH 6.7); clear smooth boundary. (23 to 30 cm thick)

C1--64 to 86 cm; brown (10YR 5/3) loamy sand, brown (10YR 4/3) moist; massive; slightly hard, very friable, nonsticky and nonplastic; few fine roots; many very fine and fine interstitial pores; neutral (pH 7.0); clear smooth boundary. (23 to 36 cm thick)

C2--86 to 107 cm; pale brown (10YR 6/3) loamy sand, brown (10YR 4/3) moist; massive; soft, very friable, nonsticky and nonplastic; few very fine roots; many very fine and many fine interstitial pores; neutral (pH 7.0); clear smooth boundary. (15 to 64 cm thick)

C3--107 to 157 cm; light brownish gray (10YR 6/2) coarse sand, dark grayish brown (10YR 4/2) moist; single grain; loose, nonsticky and nonplastic; few very fine roots; many fine and very fine interstitial pores; few spots of slight effervescence; neutral (pH 7.2)

TYPE LOCATION: Douglas County, Nevada; in Carson Valley about 2 miles southwest of Hot Springs Mountain; approximately 600 feet west of the northeast corner of section 33, T. 14 N., R. 20 E.; USGS McTarnahan Hill 7.5 minute topographic quadrangle; latitude 39 degrees 02 minutes 28 seconds N and longitude 119 degrees 44 minutes 07 seconds W; WGS84 Decimal Degrees 39.0410000 latitude, -119.735167 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually moist in the moisture control section in winter and spring, dry in summer and fall; aridic moisture regime bordering on xeric.
Mean annual soil temperature: 9 to 12 degrees C.
Depth to base of cambic horizon: 46 to 80 cm.

Particle-size control section - Clay content: Average 10 to 18 percent.
Rock fragments: 0 to 20 percent, mainly fine gravel, mainly granitic rocks such as granite or granodiorite.

A horizon:
Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 2 or 3, dry or moist.
Reaction: Neutral or slightly alkaline.
Structure: Granular, subangular blocky, or platy.

Bw horizon:
Hue: 10YR or 7.5YR.
Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 3 or 4, dry or moist
Texture: Sandy loam, gravelly sandy loam, or fine sandy loam.
Clay content: 8 to 18 percent.
Rock fragments: 0 to 20 percent, mainly fine gravel.
Reaction: Neutral to moderately alkaline.
Salinity (EC): 0 to 2 mmhos/cm.

C horizons:
Value: 5 to 7 dry, 3 to 5 moist.
Chroma: 2 to 4, dry or moist.
Texture: Stratified gravelly coarse sand to fine sandy loam.
Clay content: 5 to 12 percent.
Rock fragments: 0 to 15 percent, mainly fine gravel.
Reaction: Neutral to moderately alkaline.
Salinity (EC): 0 to 2 mmhos/cm.
Other features: Some pedons are slightly effervescent below a depth of 76 cm, where influenced by calcareous parent material; some pedons have stratified very gravelly fine sand and cobbly sand subhorizons below a depth of 100 cm.

COMPETING SERIES: These are the Bijorja, Chedehap, Clems, Drewsey, Heist, Irrigon, McClenden, Prosser, Rebel, Royal, Scooteney, Vining, and Wiehl series.

Bijorja, Irrigon, and Wiehl soils are moderately deep to paralithic contacts. Chedehap, Drewsey, McClenden, Royal, and Scooteney soils have horizons with identifiable secondary carbonates and are calcareous in a major part of the control section. Clems soils do not have sandy textures within a depth of 100 cm. Heist and Rebel soils are calcareous in a major part of the control section and do not have sandy textures within a depth of 100 cm. Prosser and Vining soils are moderately deep to lithic contacts.

GEOGRAPHIC SETTING: Haybourne soils are on inset fans, alluvial fans, fan remnants, ballenas, lake terraces, fan skirts, and fan aprons. These soils formed in alluvium derived from granitic rocks or from mixed sources. Slopes are 0 to 30 percent. Elevations range from 1,370 to 2,012 meters. The climate is semiarid with cool, moist winters and warm, dry summers. The mean annual precipitation is 200 to 300 mm, the mean annual temperature is 8 to 11 degrees C., and the frost-free period is 80 to 120 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gardnerville, Reno, and Toll soils. Gardnerville soils are fine and have natric horizons. Reno soils are fine and moderately deep to duripans. Toll soils are sandy.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; very low to medium surface runoff; high saturated hydraulic conductivity.

USE AND VEGETATION: Haybourne soils are used for irrigated cropland, rangeland, recreation, and urban development. The vegetation is mainly Wyoming big sagebrush, Douglas rabbitbrush, Nevada ephedra, Anderson's peachbrush, bottlebrush squirreltail, desert needlegrass, and Indian ricegrass. This pedon is associated with Ecological Site ID R026XY016NV, Loamy 8-10" P.Z.

DISTRIBUTION AND EXTENT: Western and northeastern Nevada and eastern California. It also occurs in minor areas of western Utah. These soils are moderately extensive. The series concept and main acreage occurs in MLRA 26. Other acres of this series are mapped in MLRAs 25, 27, and 28A.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California.

SERIES ESTABLISHED: Douglas County, Nevada, 1974.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from 0 to 18 cm (A1 and A2 horizons and part of the Bw1 horizon).
Cambic horizon - The zone from 15 to 64 cm (Bw1 and Bw2 horizons).
Particle-size control section - The zone from 25 to 100 cm (Bw2 and C1, and parts of the Bw1 and C2 horizons).

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National Cooperative Soil Survey
U.S.A.