LOCATION ACKLEY                  NV+ID

Established Series
Rev. WMA/GJS/JBF
02/2017

ACKLEY SERIES

The Ackley series consists of very deep, well drained soils that formed in alluvium derived from mixed rocks. They are on fans and terraces. Slopes are 0 to 8 percent. Mean annual precipitation is about 200 mm and mean annual temperature is 11 degrees C.

TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Xeric Haplargids

TYPICAL PEDON: Ackley gravelly sandy loam--rangeland. (Colors are for dry soil unless otherwise noted.)

A1--0 to 3 cm; grayish brown (2.5Y 5/2) gravelly sandy loam, very dark grayish brown (10YR 3/2) moist; weak medium platy structure; soft, very friable, nonsticky and nonplastic; few very fine roots; many very fine interstitial pores; 15 percent gravel; neutral (pH 6.6); abrupt wavy boundary. (0 to 8 cm thick)

A2--3 to 8 cm; light brownish gray (2.5Y 6/2) gravelly sandy loam, dark grayish brown (2.5Y 4/2) moist; moderate medium platy structure; soft, very friable, nonsticky and nonplastic; common medium and many fine and very fine roots; many fine and very fine vesicular pores; 15 percent gravel; neutral (pH 6.6); abrupt wavy boundary. (3 to 8 cm thick)

A3--8 to 25 cm; grayish brown (2.5Y 5/2) gravelly sandy loam, very dark grayish brown (2.5Y 3/2) moist; weak medium and coarse subangular blocky structure; soft, very friable, nonsticky and nonplastic; common coarse through very fine roots; many very fine interstitial and common fine tubular pores; 15 percent gravel; neutral (pH 7.0); clear wavy boundary. (5 to 25 cm thick)

Bt1--25 to 43 cm; grayish brown (2.5Y 5/2) sandy loam, very dark grayish brown (2.5Y 3/2) moist; weak medium subangular blocky structure; slightly hard, very friable, slightly sticky and nonplastic; common coarse through very fine roots; many very fine interstitial and common fine tubular pores; common faint clay bridges; neutral (pH 7.0); abrupt wavy boundary. (13 to 25 cm thick)

Bt2--43 to 69 cm; yellowish brown (10YR 5/4) loam, brown (10YR 4/3) moist; strong medium subangular and angular blocky structure; hard, friable, moderately sticky and moderately plastic; few medium and common fine and very fine roots; common fine and very fine tubular pores; many faint and distinct clay films on ped faces and lining pores; neutral (pH 7.2); clear wavy boundary. (15 to 30 cm thick)

Bt3--69 to 86 cm; brown (10YR 5/3) loam, brown (10YR 4/3) moist; moderate medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; few medium and common fine and very fine roots; common fine and very fine tubular pores; common faint bridges and few faint clay films on ped faces and lining pores; neutral (pH7.2); clear wavy boundary. (10 to 20 cm thick)

Bk1--86 to 119 cm; light yellowish brown (2.5Y 6/4) fine sandy loam, dark grayish brown (2.5Y 4/2) moist; massive; slightly hard, very friable, nonsticky and nonplastic; few fine and very fine roots; common fine and very fine tubular pores; very slightly effervescent; moderately alkaline (pH 8.0); gradual wavy boundary. (25 to 50 cm thick)

Bk2--119 to 152 cm; light yellowish brown (2.5Y 6/4) fine sandy loam, dark grayish brown (2.5Y 4/2) moist; massive; soft, very friable, nonsticky and nonplastic; few fine and very fine roots; common fine and very fine tubular pores; very slightly effervescent; moderately alkaline (pH 8.2).

TYPE LOCATION: Lyon County, Nevada; about 950 feet west of the center of section 29, T. 16 N., R. 21 E., USGS New Empire 7.5 minute topographic quadrangle; latitude 39 degrees 13 minutes 21.7 seconds N and longitude 119 degrees 39 minutes 8.6 seconds W; WGS84 Decimal Degrees 39.2226944 latitude, -119.6523889 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Moist in winter and spring, dry in summer and fall, typic aridic soil moisture regime bordering on xeric.
Mean annual soil temperature: 10 to 12 degrees C.
Combined thickness of A and Bt horizons: 50 to 100 cm.
Depth to carbonates: 70 to 127 cm.
Other features: A gravel mulch is on the surface of some pedons.

Particle-size control section - Percent clay: 18 to 27.
Rock fragments: 0 to 15 percent gravel and cobbles.

A horizon
Hue: 10YR, 2.5Y.
Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 2 or 3.
Reaction: Neutral or slightly acid.

Bt horizon
Hue: 10YR, 2.5Y.
Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 2 through 4.
Texture: Sandy loam, sandy clay loam, or loam.
Reaction: Neutral or slightly acid.

Bk horizon
Hue: 10YR, 2.5Y.
Value: 5 through 8 dry, 3 through 6 moist.
Chroma: 2 through 4.
Reaction: Neutral through strongly alkaline.
Effervescence: Very slightly effervescent through strongly effervescent.

COMPETING SERIES: These are the Abgese, Blacknest, Bluelight, Colbar, Eusbio, Greenbrae, Hardtrigger, Harsan, Hoosegow, Hoye, Lankbush, Morfitt, Nosser, Shawave, Sidlake, Turria and Windypoint series.

Abgese soils have carbonates at 46 to 60 cm, 20 to 25 percent gravel in the particle-size control section, and 30 to 60 percent gravel in the C horizon. Blacknest soils have sand and gravel at 50 to 100 cm. Bluelight, Colbar, Nosser and Sidlake soils are moderately deep to a lithic contact. Eusbio are moderately deep to a paralithic contact. Greenbrae soils have 27 to 35 percent clay in the argillic horizon. Hardtrigger soils are moderately or strongly alkaline in the Bk horizon and have carbonates at 25 to 69 cm. Harsan soils have a duripan at 100 to 152 cm. Hoosegow soils have a BC horizon below the argillic that lacks carbonates. Hoye soils have a combined thickness of the A and Bt of less than 20 cm. Lankbush soils have a coarse sand 2C horizon and lack carbonates in the C horizon. Morfitt soils have 27 to 35 percent clay in the particle-size control section. Shawave soils have a soil temperature of 12 to 13 degrees C and slightly alkaline or moderately alkaline A and BT horizons. Turria soils have 27 to 35 percent clay in the argillic horizon and combined thickness of A and Bt horizons is than 50 cm. Windypoint soils have sand and gravel at a depth of 64 to 100 cm and depth to carbonate of 30 to 46 cm.

GEOGRAPHIC SETTING: Ackley soils are on fans and terraces. They formed in alluvium derived from mixed rocks. Slopes are 0 to 8 percent. Elevations are 1,300 to 1,800 meters. The mean annual temperature is 9 to 11 degrees C and the mean annual precipitation is 200 to 250 mm. Frost-free season is 100 to 120 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Reno, Fulstone, and Hunewill soils. Reno and Fulstone soils are on older surfaces and have a duripan. Hunewill soils are skeletal and combined thickness of A and Bt horizons is less than 50 cm.

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

USE AND VEGETATION: Rangeland and wildlife habitat. Some areas are cropped or used for homesite development. The vegetation is principally Thurber needlegrass, Indian ricegrass, Wyoming big sagebrush, and green ephedra. This pedon is correlated to R026XY016NV, Loamy 8-10" P.Z.

DISTRIBUTION AND EXTENT: Western Nevada. These soils are not extensive. MLRA 26.

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

SERIES ESTABLISHED: Lyon County Area, Nevada. 1981.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the surface to 25 cm (A1, A2 and A3 horizons).
Argillic horizon - The zone from 25 to 86 cm (Bt1, Bt2 and Bt3 horizon)
Particle-size control section - The zone from 25 to 75 cm (Bt1, Bt2 and upper Bt3 horizons)

ADDITIONAL DATA: User pedon ID 2006NV019901.

---

National Cooperative Soil Survey
U.S.A.