LOCATION BUNDORF NV

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

BUNDORF SERIES

The Bundorf series consists of shallow to a duripan, well drained soils that formed in alluvium derived from mixed volcanic rocks. Bundorf soils are on fan remnants. Slopes are 4 to 15 percent. The mean annual precipitation is about 150 mm and the mean annual temperature is about 10 degrees C.

TAXONOMIC CLASS: Clayey, smectitic, mesic, shallow Typic Argidurids

TYPICAL PEDON: Bundorf very gravelly loam--rangeland. (Colors are for dry soil unless otherwise noted.) The surface is covered with 30 percent gravel, 30 percent cobbles, and 5 percent stones.

A--0 to 5 cm; light gray (10YR 7/2) very gravelly loam, brown (10YR 5/3) moist; moderate thick platy and weak thin platy structure; soft, very friable, slightly sticky and slightly plastic; few very fine roots; many very fine and fine vesicular pores; 35 percent gravel, 10 percent cobbles, and 5 percent stones; strongly effervescent; moderately alkaline (pH 8.4); clear smooth boundary. (3 to 10 cm thick)

Bt1--5 to 15 cm; pale brown (10YR 6/3) clay loam, brown (10YR 4/3) moist; moderate fine and medium angular blocky structure; slightly hard, friable, moderately sticky and moderately plastic; common very fine, fine and medium roots; common very fine and fine tubular pores; common faint clay films lining pores; moderately alkaline (pH 8.4); strongly effervescent; clear smooth boundary. (8 to 13 cm thick)

Bt2--15 to 25 cm; pale brown (10YR 6/3) clay loam, dark yellowish brown (10YR 4/4) moist; strong medium prismatic structure; very hard, firm, moderately sticky and moderately plastic; common very fine, fine and medium roots; common very fine and fine tubular pores; common distinct clay films on faces of peds and lining pores; strongly alkaline (pH 8.6); strongly effervescent; abrupt smooth boundary. (8 to 15 cm thick)

Btk--25 to 36 cm; light brown (7.5YR 6/4) very gravelly clay, brown (7.5YR 5/4) moist; massive; hard, friable, moderately sticky and moderately plastic; common very fine and fine roots; common very fine and fine tubular pores; few faint clay films lining pores; 40 percent gravel and 15 percent cobbles; violently effervescent; 5 percent calcium carbonate equivalent; strongly alkaline (pH 8.8); abrupt wavy boundary. (0 to 13 cm thick)

Bqk--36 to 48 cm; light yellowish brown (10YR 6/4) very gravelly clay loam, yellowish brown (10YR 5/4) moist; massive; hard, brittle, slightly sticky and slightly plastic; common very fine roots; many very fine and fine interstitial pores; 55 percent gravel and 5 percent cobbles; violently effervescent; 34 percent calcium carbonate equivalent; very strongly alkaline (pH 9.6); abrupt wavy boundary. (0 to 15 cm thick)

2Bqkm--48 to 69 cm; cemented material; indurated by secondary silica and carbonates.

TYPE LOCATION: Washoe County, Nevada; about 7 miles southeast of Nixon in Little Valley; approximately 1,120 feet north and 500 feet east of the southwest corner of section 13, T. 22 N., R. 24 E.; USGS Juniper Peak 7.5 minute topographic quadrangle; latitude 39 degrees 46 minutes 15.3 seconds N and longitude 119 degrees 14 minutes 44.4 seconds W; WGS84 Decimal Degrees 39.7709167 latitude, -119.2456667 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry, moist only for short periods between March and June; typic aridic moisture regime.
Mean annual soil temperature: 11 to 12 degrees C.
Depth to base of argillic horizon: 25 to 35 cm.
Depth to indurated duripan: 36 to 50 cm.
Effervescence: Noneffervescent to strongly effervescent in the upper part of the soil profile and slightly effervescent to violently effervescent in the lower part.

Particle-size control section - Clay content: Averages 35 to 50 percent.
Rock fragments: 0 to 15 percent in the upper part and up to 55 percent in lower horizons.

A horizon
Hue: 10YR or 2.5Y.
Value: 6 or 7 dry, 4 or 5 moist.
Chroma: 2 or 3, dry or moist.
Reaction: Moderately alkaline or strongly alkaline.

Bt horizons
Hue: 7.5YR or 10YR.
Value: 5 or 6 dry, 4 or 5 moist.
Chroma: 3 or 4, dry or moist.
Texture: Clay loam or clay.
Reaction: Moderately alkaline or strongly alkaline.

Btk horizon
Hue: 7.5YR or 10YR.
Value: 5 or 6 dry, 4 or 5 moist.
Chroma: 3 or 4, dry or moist.
Texture: Very gravelly clay or very gravelly clay loam.
Calcium carbonate equivalent: 5 to 10 percent.
Reaction: Strongly alkaline or very strongly alkaline (up to pH 9.6).

Bqk horizon (when present)
Texture: Very gravelly sandy loam, very gravelly loam, or very gravelly clay loam.
Calcium carbonate equivalent: 15 to 35 percent.
Reaction: Strongly alkaline or very strongly alkaline (up to pH 9.6).
Other features: This is a calcic horizon in some pedons when thickness is 6 inches.

COMPETING SERIES: There are currently no other series in this family.

GEOGRAPHIC SETTING: Bundorf soils are on fan remnants. These soils formed in alluvium derived mainly from mixed volcanic rocks with an admixture of eolian materials. Slopes are 4 to 15 percent. Elevations range from 1,340 to 2,260 meters. The climate is semiarid with cool, moist winters and hot, dry summers. The mean annual precipitation is 150 to 200 mm, the mean annual temperature is 9 to 11 degrees C., and the frost-free period is 90 to 100 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Sutcliff and Kleinbush soils. Sutcliff soils are loamy-skeletal and deep to duripans. Kleinbush soils are very deep, have natric horizons, and do not have duripans.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; very high surface runoff; slow permeability; moderately low saturated hydraulic conductivity.

USE AND VEGETATION: Bundorf soils are used for rangeland and wildlife habitat. The vegetation is mainly shadscale, bud sagebrush, Bailey's greasewood, cheatgrass, and Indian ricegrass (burned).

DISTRIBUTION AND EXTENT: Western Nevada. These soils are moderately extensive. MLRA 27.

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

SERIES ESTABLISHED: Washoe County, Nevada, South Part, 1978.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the soil surface to 5 cm (A horizon).
Argillic horizon - The zone from 5 to 36 cm (Bt1, Bt2, and Btk horizons.)
Duripan - The zone from 48 to 69 cm (2Bqkm horizon).
Particle-size control section - The zone from 5 to 36 cm (Bt1, Bt2, and Btk horizons).

ADDITIONAL DATA: The typical pedon at the series type location has characterization data by the Soil Survey Laboratory (SSL), Lincoln, NE, as soil survey sample number S78NV-031-003 (pedon # 78P0592).

National Cooperative Soil Survey
U.S.A.