LOCATION PANLEE                  NV

Established Series
Rev. HVB-DD-RLB-JBF
03/2016

PANLEE SERIES

The Panlee series consists of deep, well drained soils that formed in residuum and colluvium derived from mixed rocks with components of loess and volcanic ash. The Panlee soils are on hill and mountain side slopes. Slopes are 8 to 50 percent. The mean annual precipitation is about 230 mm and the mean annual temperature is about 9 degrees C.

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, mesic Xeric Petrocambids

TYPICAL PEDON: Panlee gravelly very fine sandy loam, rangeland. (Colors are for dry soil unless otherwise noted.) The soil surface is partially covered with approximately 15 percent gravel and 5 percent cobbles.

A1--0 to 8 cm; brown (10YR 5/3) gravelly very fine sandy loam, dark brown (10YR 3/3) moist; massive; slightly hard, very friable, nonsticky and slightly plastic; many very fine roots; many very fine interstitial pores; 15 percent gravel and 5 percent cobbles; neutral (pH 7.2); clear wavy boundary. (5 to 10 cm thick)

A2--8 to 25 cm; pale brown (10YR 6/3) very fine sandy loam, dark brown (10YR 3/3) moist; weak medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; many very fine roots; many very fine interstitial and common very fine and fine tubular pores; neutral (pH 7.3); clear smooth boundary. (10 to 20 cm thick)

Bw--25 to 74 cm; pale brown (10YR 6/3) very cobbly very fine sandy loam, brown (10YR 4/3) moist; weak medium subangular blocky structure; slightly hard, friable, nonsticky and slightly plastic; common very fine and few fine and medium roots; many very fine interstitial and common very fine tubular pores; 20 percent gravel and 15 percent cobbles; slightly alkaline (pH 7.6); clear wavy boundary. (30 to 66 cm thick)

Bq--74 to 89 cm; pale brown (10YR 6/3) very gravelly silt loam, brown (10YR 4/3) moist; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; few very fine roots; common very fine interstitial and common very fine tubular pores; 10 percent weakly cemented durinodes; 35 percent gravel and 10 percent cobbles; slightly alkaline (pH 7.6); clear wavy boundary. (0 to 23 cm thick)

Bqk--89 to 107 cm; pale brown (10YR 6/3) very gravelly very fine sandy loam, brown (10YR 5/3) moist; massive; slightly hard, friable, slightly sticky and slightly plastic; common very fine and medium roots; common very fine tubular pores; few thin silica bridges on sand grains that are slightly brittle when wet; carbonates are disseminated; strongly effervescent; 45 percent gravel and 10 percent cobbles; slightly alkaline (pH 7.8); abrupt wavy boundary. (10 to 30 cm thick)

2Bkqm--107 to 114 cm; very pale brown(10YR 8/2) indurated duripan, pale brown (10YR 6/3) moist; massive; very hard; very firm; continuous 1 to 2 mm thick horizontal silica laminae that is extremely hard and extremely firm; carbonates are disseminated; violently effervescent; moderately alkaline (pH 8.4); abrupt wavy boundary. (3 to 8 cm thick)

3R--114 cm; fractured andesite with silica coating fractures.

TYPE LOCATION: Humboldt County, Nevada; approximately 7 miles north of Winnemucca in the Krum Hills, about 1,900 feet west and 1,750 feet south of the northeast corner of section 24, T. 37 N., R. 37 E.; USGS Winnemucca Mountain 7.5 minute topographic quadrangle; latitude 41 degrees 4 minutes 18 seconds N and longitude 117 degrees 45 minutes 40 seconds W; WGS84 Decimal Degrees 41.0716667 latitude, 41.0716667 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry, moist December through May and dry from June through November; aridic soil moisture regime bordering on xeric.
Mean annual soil temperature: 8 to 11 degrees C.
Combined thickness of the A and Bw horizons: 50 to 90 cm.
Depth to carbonates: 76 to 100 cm.
Depth to duripan: 100 to 150 cm.
Depth to bedrock: 104 to 152 cm.

Particle-size control section - Clay content: 8 to 15 percent.
Rock fragments: 35 to 60 percent, mainly gravel and cobbles.

A horizon
Hue: 10YR or 2.5Y.
Value: 5 or 6 dry, 3 through 5 moist; when the upper 18 cm are mixed, value is greater than 5.5 dry.
Chroma: 2 or 3.
Reaction: Neutral or slightly alkaline.

Bw horizons
Value: 6 or 7 dry, 4 through 6 moist.
Chroma: 3 or 4.
Reaction: Neutral or slightly alkaline.
Texture: Very gravelly or very cobbly, very fine sandy loam or silt loam.
Other features: Some pedons have discontinuous pockets and lenses of weakly cemented durinodes along the lower horizon boundary.

Bqk and Bq (when present)
Value: 5 through 7 dry; 4 or 5 moist.
Chroma: 2 through 4.
Structure: Subangular blocky or the horizon is massive.
Texture: Very gravelly or very cobbly, very fine sandy loam or silt loam.
Consistence: Slightly hard or hard, dry.
Reaction: Slightly alkaline or moderately alkaline.
Carbonates: Bqk horizons are slightly effervescent to violently effervescent.
Silica cementation or durinodes: Have up to 15 percent weakly cemented durinodes or few or common weak silica bridges between sand grains.

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

GEOGRAPHIC SETTING: Panlee soils are on hill and mountain side slopes. These soils formed in residuum and colluvium weathered from mixed rocks with a small component of loess and volcanic ash. Slopes are 8 to 50 percent. Elevations are 1,310 to 1,985 meters. The climate is cool, semiarid with cool, moist winters and warm, dry summers. The mean annual precipitation is 200 to 250 mm, mean annual temperature is 7 to 10 degrees C, and the frost-free season is 90 to 120 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gowjai, Old Camp and Atlow soils. Gowjai soils have a mollic epipedon and a frigid temperature regime. Old Camp and Atlow soils are shallow over bedrock.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; medium or rapid runoff; moderately high saturated hydraulic conductivity rmeability.

USE AND VEGETATION: Rangeland and wildlife habitat. The present vegetation is mainly Wyoming big sagebrush and basin big sagebrush, Sandberg bluegrass, bottlebrush squirreltail and needleandthread.

DISTRIBUTION AND EXTENT: Northern Nevada. These soils are not extensive. MLRA 24.

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

SERIES ESTABLISHED: Humboldt County, Nevada, East Part. 1993.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the soil surface to 18 cm (A1 and part of the A2 horizons).
Cambic horizon - The zone from 25 to 74 cm (Bw horizon).
Duripan - The zone from 107 to 114 (2Bkqm horizon).Xeric intergrades - Meets soil moisture regime and organic carbon requirement for xeric.
Particle-size control section - The zone from 25 to 100 cm (Bw, Bq and part of the Bqk horizons).

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National Cooperative Soil Survey
U.S.A.