LOCATION EASYCHAIR               NV

Established Series
Rev. GLT-JBF-WED
06/2016

EASYCHAIR SERIES

The Easychair series consists of very deep, well drained soils that formed in alluvium derived from mixed rocks. Easychair soils are on lake plains, alluvial flats and inset fans. Slopes are 0 to 4 percent. The mean annual precipitation is about 125 mm and the mean annual temperature is about 13 degrees C.

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

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

A1--0 to 3 cm; very pale brown (10YR 7/3) silt loam, yellowish brown (10YR 5/4) moist; strong thick platy structure; soft, very friable, moderately sticky and moderately plastic; many fine and medium and common very fine vesicular pores; strongly effervescent; strongly alkaline (pH 8.6); clear smooth boundary. (0 to 8 cm thick)

A2--3 to 23 cm; pale brown (10YR 6/3) silt loam, yellowish brown (10YR 5/4) moist; strong thick platy structure; soft, very friable, moderately sticky and moderately plastic; many very fine and few fine roots; many fine and common very fine vesicular pores; strongly effervescent; moderately alkaline (pH 8.4); clear smooth boundary. (13 to 28 cm thick)

C1--23 to 33 cm; pale brown (10YR 6/3) silt loam, yellowish brown (10YR 5/4) moist; moderate thick platy structure; soft, very friable, slightly sticky and slightly plastic; many very fine and few fine and medium roots; common very fine interstitial and few very fine vesicular pores; slightly effervescent; moderately alkaline (pH 8.0); clear smooth boundary. (5 to 20 cm thick)

C2--33 to 53 cm; pale brown (10YR 6/3) silt loam, yellowish brown (10YR 5/4) moist; moderate thick platy structure; soft, very friable, slightly sticky and slightly plastic; common very fine roots; many very fine and few fine vesicular pores; slightly effervescent; moderately alkaline (pH 8.4); clear smooth boundary. (13 to 40 cm thick)

C3--53 to 71 cm; pale brown (10YR 6/3) silt loam, yellowish brown (10YR 5/4) moist; weak thick platy structure; soft, very friable, slightly sticky and slightly plastic; few very fine roots; common very fine and fine vesicular pores; strongly effervescent; moderately alkaline (pH 8.2); clear smooth boundary. (0 to 38 cm thick)

C4--71 to 117 cm; very pale brown (10YR 7/3) silt loam, yellowish brown (10YR 5/4) moist; weak thick platy structure; soft, very friable, slightly sticky and slightly plastic; few very fine roots; common very fine and fine vesicular pores; slightly effervescent; moderately alkaline (pH 8.0); clear smooth boundary. (0 to 60 cm thick)

2Cq1--117 to 124 cm; pale brown (10YR 6/3) sandy loam, brown (10YR 4/3) moist; massive; soft, very friable, nonsticky and nonplastic; many very fine interstitial pores; 20 percent very hard, firm, brittle durinodes; moderately alkaline (pH 8.0); clear smooth boundary. (0 to 15 cm thick)

2Cq2--124 to 152 cm; pale brown (10YR 6/3) sandy loam, brown (10YR 4/3) moist; massive; soft, very friable, nonsticky and nonplastic; many very fine interstitial pores; 20 percent very hard, firm, brittle durinodes; moderately alkaline (pH 8.0).

TYPE LOCATION: Nye County, Nevada; about 900 feet south and 300 feet west of the northeast corner of section 32, T. 7 N., R. 53 E.; USGS Lunar Crater 7.5 minute topographic quadrangle; latitude 38 degrees, 25 minutes, 35 seconds N and longitude 116 degrees 02 minutes 04 seconds W; WGS84 Decimal Degrees 38.4276111 latitude, -116.0280556 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry, moist in some parts for short periods during winter and early spring and for 10 to 20 days cumulative between July and October due to convection storms; typic aridic soil moisture regime.
Mean annual soil temperature: 12 to 15 degrees C.
Reaction: Moderately alkaline or strongly alkaline.
Carbonates: Slightly effervescent or strongly effervescent above 100 cm.

Particle-size control section - Clay content: Averages 18 to 25 percent.
Rock fragments: 0 to 5 percent gravel.

A horizon
Value: 6 or 7 dry, 4 or 5 moist.
Chroma: 3 or 4.
Calcium carbonate: 1 to 10 percent.

C horizons
Value: 5 through 7 dry, 4 or 5 moist.
Chroma: 3 or 4.
Texture: Silt loam, with fine strata of sandy loam or fine sandy loam, may be sandy loam below 100 cm in some pedons.
Clay content: 18 to 25 percent in upper part, 8 to 25 percent below 100 cm.
Rock fragments: 0 to 5 percent gravel.
Structure: Platy, blocky or massive.
Consistence: Nonsticky or slightly sticky and nonplastic or slightly plastic.
Calcium carbonate: 1 to 10 percent.

2Cq horizons (when present)
Value 6 or 7 dry, 4 or 5 moist.
Chroma: 3 or 4.
Rock fragment: 0 to 5 percent.
Durinodes: 0 to 20 percent weakly to strongly cemented durinodes in lower part of the profile.
Calcium carbonate: 1 to 13 percent.

COMPETING SERIES: These are the Blueagle, Rosney, Sagrilite, Sain, Sondoa, Swingler, and Timpie series.

Blueagle, Sain and Sondoa soils have 25 to 35 percent clay in the particle-size control section. Sagrilite soils are not moist for 10 to 20 days in the summer and have 10 to 20 percent calcium carbonate in the C horizon. Rosney, Sagrilite, Swingler and Timpie soils are not moist for 10 to 20 days in the summer.

GEOGRAPHIC SETTING: Easychair soils are on alluvial flats, lake plains, inset fans and fan skirts. These soils formed in alluvium derived from mixed rocks. Slopes are 0 to 4 percent. Elevations are 1,435 to 2,135 meters. The climate is cool, semiarid with cool, moist winters and warm, dry summers. The mean annual precipitation is 125 to 200 mm; mean annual temperature is 12 to 14 degrees C, and the frost-free season is 130 to 150 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Geer and Wholan soils. Geer and Wholan soils have coarse-loamy particle-size control section.

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

USE AND VEGETATION: Livestock grazing and wildlife habitat. The present vegetation is mainly fourwing saltbush and rabbitbrush.

DISTRIBUTION AND EXTENT: South-central Nevada. MLRA 29. These soils are not extensive.

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

SERIES ESTABLISHED: Nye County, (Northeast Part) Nevada, 1993.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the surface to 18 cm (A1 and part of the A2 horizons).
Particle-size control section - The zone from 25 to 100 cm (C2, C3 and part of C1 and C4 horizons).

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National Cooperative Soil Survey
U.S.A.