LOCATION HARCANY NV+OR
Established Series
Rev. LIL/MJZ/RLB/JBF
07/2016
HARCANY SERIES
The Harcany series consists of very deep, well drained soils that formed in colluvium derived from mixed rocks with additions of loess and volcanic ash. Harcany soils are on side slopes of mountains. Slopes are 2 to 75 percent. The mean annual precipitation is about 330 mm and the mean annual temperature is about 3 degrees C.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Pachic Haplocryolls
TYPICAL PEDON: Harcany gravelly silt loam, rangeland. (Colors are for dry soil unless otherwise noted.)
A1--0 to 10 cm; dark grayish brown (10YR 4/2) gravelly silt loam, very dark brown (10YR 2/2) moist; strong very fine granular structure; soft, very friable, nonsticky and nonplastic; many very fine and few fine and medium roots; many very fine interstitial pores; 25 percent gravel, 5 percent cobbles and 1 percent stones; neutral (pH 6.6); clear wavy boundary. (8 to 15 cm)
A2--10 to 25 cm; dark grayish brown (10YR 4/2) gravelly silt loam, very dark brown (10YR 2/2) moist; moderate very fine granular structure; soft, very friable, nonsticky and nonplastic; many very fine and few fine and medium roots; many very fine interstitial pores; 25 percent gravel, 5 percent cobbles and stones; neutral (pH 6.6); clear wavy boundary. (10 to 20 cm thick)
A3--25 to 46 cm; dark grayish brown (10YR 4/2) very gravelly silt loam, very dark brown (10YR 2/2) moist; massive; slightly hard, very friable, nonsticky and nonplastic; common very fine and few fine and medium roots; many very fine interstitial pores; 40 percent gravel, 15 percent cobbles and stones; neutral (pH 6.6); clear wavy boundary. (15 to 25 cm thick)
2A1--46 to 122 cm; brown (10YR 5/3) extremely gravelly sandy loam, dark brown (10YR 3/3) moist; massive; hard, friable, slightly sticky and slightly plastic; common very fine and few fine and medium roots; common very fine interstitial and few very fine tubular pores; 60 percent gravel, 5 percent cobbles and stones; neutral (pH 6.8); clear wavy boundary. (50 to 90 cm thick)
2A2--122 to 183 cm; brown (10YR 5/3) extremely gravelly sandy loam, dark brown (10YR 3/3) moist; massive; hard, friable, slightly sticky and slightly plastic; few very fine roots; common very fine interstitial and few very fine tubular pores; 50 percent gravel, 20 percent cobbles and stones; neutral (pH 6.8).
TYPE LOCATION: Humboldt County, Nevada; approximately 6 miles southeast of Winnemucca, about 600 feet west and 1,000 feet north of the southeast corner of section 13, T. 35 N., R. 38 E; USGS Winnemucca East 7.5 minute topographic quadrangle; latitude 40 degrees 54 minutes 12 seconds N and longitude 117 degrees 38 minutes 39 seconds W; WGS84 Decimal Degrees 40.9033333 latitude, -117.6441667 longitude.
RANGE IN CHARACTERISTICS:
Soil moisture: Usually moist, moist in winter through early summer, dry from August through September; xeric soil moisture regime.
Mean annual soil temperature: 2 to 6 degrees C.
Average summer soil temperature: 12 to 15 degrees C.
Mollic epipedon thickness: 86 to 200 cm.
Depth to 2A horizon: 36 to 60 cm.
Particle-size control section - Clay content: Average 10 to 18 percent.
Rock fragments: 50 to 80 percent, mainly gravel.
A1 horizon
Value: 3 through 5 dry, 2 or 3 moist.
Chroma: 2 or 3.
A2 and A3 horizons
Value: 3 through 5 dry, 2 or 3 moist.
Chroma: 2 or 3.
Gravelly or very gravelly silt loam.
Clay content: 5 to 10 percent
2A horizons
Value: 5 or 6 dry.
Texture: Sandy loam, silt loam, loam with strata of gravelly loam or gravelly silt loam.
Clay content: 10 to 18 percent.
Modifiers: Extremely gravelly, very gravely, extremely stony or extremely cobbly.
Rock fragments: Average 60 to 80 percent.
COMPETING SERIES: These are the
Baconcamp,
Badgerton,
Badhap,
Behanco,
Behanin,
Belsac,
Boydhollow,
Bullrey,
Busterback,
Croesus,
Dressel,
Gateview,
Goodski,
Hapgood,
Hobacker,
Lionhead,
Lolon,
Marcetta,
Mundos,
Nagitsy,
Namela,
Nazaton,
Papaspila,
Parkcity,
Poleline,
Povey,
Snacreek,
Snopoc,
Splitbutte and
Tonigut series.
Baconcamp,
Belsac,
Croesus,
Goodski,
Nagitsy,
Namela,
Prong and
Splitbutte soils are moderately deep to bedrock.
Badgerton,
Boydhollow,
Bullrey,
Busterback,
Lolon,
Marcetta,
Snacreek, and
Snopoc have a mollic epipedon less than 86 cm thick.
Badhap,
Behanco,
Behanin, Boydhollow,
Dressel,
Hapgood,
Mundos,
Papaspila and
Tonigut soils average more than 18 percent clay in the particle-size control section.
Hobacker soils have visible carbonates and very gravelly loamy sand textures in the series control section.
Lionhead,
Nazaton,
Poleline and
Povey soils have cambic horizons.
Gateview and
Parkcity soils have an udic soil moisture regime.
GEOGRAPHIC SETTING: Harcany soils are on side slopes of mountains. These soils formed in colluvium derived from mixed rocks with additions of loess and volcanic ash. Slopes are 2 to 75 percent. Elevations are 1,830 to 2,750 meters. The climate is cool, semiarid with cold, moist winters and cool, dry summers. The mean annual precipitation is 300 to 500 mm, mean annual temperature is 2 to 7 degrees C, and the frost-free season is 45 to 70 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Golsum and
Spinlin soils. Both of these soils have clayey-skeletal particle-size control sections. Golsum soils also have a frigid temperature regime.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; rapid runoff; moderately high saturated hydraulic conductivity.
USE AND VEGETATION: Livestock grazing and wildlife habitat. The present vegetation is mainly mountain big sagebrush, snowberry, mountain brome, and Idaho fescue.
DISTRIBUTION AND EXTENT: North-central Nevada and southeastern Oregon. These soils are of moderate extent. MLRA 23, 24.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: Humboldt County, Nevada, (BLM Sonoma Planning Unit). 1974.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - The zone from the soil surface to 183 cm (A1, A2, A3, 2A1 and 2A2 horizons).
Particle-size control section - The zone from 25 to 100 cm (A3 and part of the 2A1 horizons).
National Cooperative Soil Survey
U.S.A.