LOCATION SWINGLER NV+UT

Established Series
Rev. MJZ/GJS/JVC
05/2016

SWINGLER SERIES

The Swingler series consists of very deep, well drained soils that formed in alluvium over lacustrine deposits derived from mixed rocks. Swingler soils are on basin-floor remnants and fan skirts. Slopes are 0 to 4 percent. The mean annual precipitation is about 125 mm and the mean annual temperature is about 12 degrees C.

TAXONOMIC CLASS: Fine-silty, mixed, superactive, calcareous, mesic Typic Torriorthents

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

A1--0 to 8 cm; light gray (10YR 7/2) silt loam, brown (10YR 5/3) moist; strong thick platy structure; slightly hard, very friable, slightly sticky and slightly plastic; few very fine roots; many fine and medium vesicular pores; strongly effervescent; strongly alkaline (pH 8.6); clear smooth boundary. (3 to 20 cm thick)

A2--8 to 15 cm; very pale brown (10YR 7/3) silt loam, brown (10YR 5/3) moist; strong thin platy structure; slightly hard, very friable, slightly sticky and slightly plastic; few very fine roots; many very fine tubular pores; strongly effervescent; strongly alkaline (pH 9.0); clear smooth boundary. (5 to 20 cm thick)

C1--15 to 61 cm; pale brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; moderate very thin platy structure; slightly hard, very friable, slightly sticky and slightly plastic; few very fine roots; common very fine, few medium tubular pores; strongly effervescent; strongly alkaline (pH 9.0); clear smooth boundary. (20 to 50 cm thick)

C2--61 to 89 cm; pale brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; moderate very thin platy structure; slightly hard, very friable, slightly sticky and slightly plastic; few very fine roots; many very fine and fine, common medium tubular pores; common fine distinct brown (7.5YR 4/4) relict masses of iron accumulation; strongly effervescent; strongly alkaline (pH 9.0); clear smooth boundary. (20 to 40 cm thick)

C3--89 to 157 cm; pale brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; massive; soft, very friable, slightly sticky and slightly plastic; few very fine roots; few very fine and fine tubular pores; common fine distinct brown (7.5YR 4/4) relict masses of iron accumulation; strongly effervescent; strongly alkaline (pH 9.0).

TYPE LOCATION: Pershing County, Nevada; about 30 miles east of Lovelock in Buena Vista Valley; approximately 700 feet east and 800 feet south of the projected northwest corner of section 34, T. 27 N., R. 36 E.; USGS West of McKinney Pass 7.5 minute topographic quadrangle; latitude 40 degrees 10 minutes 14.7 seconds N and longitude 117 degrees 55 minutes 28.5 seconds W; WGS84 Decimal Degrees 40.1716667 latitude, -117.9252778 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry, intermittently moist winter and spring, dry early May through November; typic aridic soil moisture regime.
Mean annual soil temperature: 12 to 14 degrees C.
Depth to relict redoximorphic features: 48 to 102 cm.
Effervescence: Most pedons are strongly effervescent or violently effervescent throughout their profile, with some pedons that are effervescent to at least 76 cm and noneffervescent below.
Reaction: Slightly alkaline through very strongly alkaline.
Salinity (EC): 4 to 32 mmhos/cm unless leached of salts.
Sodicity (SAR): 13 to 90 unless reclaimed and leached of sodium salts.

Particle-size control section - Clay content: 18 to 25 percent.

A horizons
Hue: 10YR or 2.5Y.
Value: 6 or 7 dry, 4 or 5 moist.
Chroma: 2 or 3, dry or moist.

C horizons
Hue: 10YR through 5Y.
Value: 6 or 7 dry, 4 or 5 moist.
Chroma: 1 through 3, dry or moist.
Texture: Silt loam or very fine sandy loam, but usually includes some thin lenses ranging from very fine sand to silty clay loam.
Calcium carbonate equivalent: 5 to 10 percent.

COMPETING SERIES: These are the Blueagle, Easychair, Rosney, Sagrlite, Sain, Sondoa, and Timpie series.

Blueagle and Sondoa soils have 25 to 35 percent clay in the particle-size control section. Easychair soils are intermittently moist for 10 to 20 days cumulative between July and October due to convection storms. Rosney soils are influenced by volcanic ash, have secondary gypsum crystals, and have mean annual soil temperatures of 8 to 11 degrees C. Sagrlite soils have calcium carbonate equivalent of 10 to 20 percent and formed in alluvium derived from sandstone and shale. Sain and Timpie soils have calcium carbonate equivalent of 15 to 40 percent.

GEOGRAPHIC SETTING: Swingler soils are on basin-floor remnants and fan skirts. These soils formed in alluvium over lacustrine deposits derived from mixed sources. Slopes are 0 to 4 percent. Elevations range from 1,189 to 1,341 meters. The climate is arid with cool, moist winters and hot, dry summers. The mean annual precipitation is 100 to 180 mm, the mean annual temperature is 11 to 13 degrees C, and the frost-free period is 100 to 140 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bango, Patna, and Hawsley soils. Bango and Patna soils have argillic horizons. Hawsley soils are sandy and do not have diagnostic subsurface horizons.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; moderately high saturated hydraulic conductivity. Endosaturation due to irrigation water loss is present in some phases in Nevada with an apparent seasonal high water table between 100 and 150 cm (deep to very deep free water occurrence classes) between April and September during the growing season. Cumulative annual duration class is Common.

USE AND VEGETATION: Swingler soils are used for livestock grazing, irrigated cropland, urban development, and wildlife habitat. Common crops are alfalfa and grass-legume pasture. The vegetation in native rangeland is mainly Bailey's greasewood, bud sagebrush, and shadscale.

DISTRIBUTION AND EXTENT: Western Nevada and northwestern Utah. These soils are moderately extensive. The series concept and main acreage is in MLRA 27, while other acreage occurs in MLRA 28A in Utah.

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

SERIES ESTABLISHED: Lyon County (Fallon-Fernley Area), Nevada, 1971.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the soil surface to 18 cm (A1, A2 and part of C1 horizons).
Particle-size control section - The zone from 25 to 100 cm (C2 and parts of the C1 and C3 horizons).

National Cooperative Soil Survey
U.S.A.