LOCATION TURRIA                  NV

Established Series
Rev: DMC/ELS/WED/JBF
06/2017

TURRIA SERIES

The Turria series consists of very deep, well drained soils that formed in alluvium derived from mixed rocks. Turria soils are on alluvial fans. Slopes are 0 to 2 percent. The mean annual precipitation is about 200 mm and the mean annual temperature is about 9 degrees C.

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

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

A--0 to 5 cm; light brownish gray (10YR 6/2) loam, very dark grayish brown (10YR 3/2) moist; moderate medium and thin platy structure; slightly hard, friable, nonsticky and nonplastic; few fine and common very fine roots; many very fine and few fine vesicular pores; neutral (pH 7.0); abrupt smooth boundary. (5 to 15 cm thick)

Bt1--5 to 13 cm; brown (10YR 5/3) clay loam, brown (10YR 4/3) moist; weak medium prismatic structure parting to moderate thin platy; hard, friable, moderately sticky and moderately plastic; few fine and common very fine roots; few fine and very fine tubular, and many very fine interstitial pores; few faint clay films on faces of peds and many faint clay films lining pores; neutral (pH 6.8); abrupt wavy boundary. (8 to 15 cm thick)

Bt2--13 to 23 cm; brown (10YR 5/3) clay loam, dark brown (10YR 3/3) moist; weak medium prismatic structure parting to strong medium subangular blocky; hard, friable, moderately sticky and moderately plastic; few fine and many very fine roots; few fine and common very fine tubular, and few very fine interstitial pores; many thin clay films on faces of peds and continuous faint clay films lining pores; neutral (pH 6.8); abrupt wavy boundary. (10 to 20 cm thick)

Bt3--23 to 30 cm; brown (10YR 5/3) loam, brown (10YR 4/3) moist; weak coarse subangular blocky structure parting to weak medium platy; hard, friable, slightly sticky and slightly plastic; common fine and many very fine roots; common fine and many very fine tubular pores; common faint clay films on faces of peds and continuous faint clay films lining pores; neutral (pH 7.0); clear smooth boundary. (0 to 10 cm thick)

C1--30 to 50 cm; pale brown (10YR 6/3) loam, brown (10YR 4/3) moist; massive; slightly hard, very friable, nonsticky and nonplastic; few fine and many fine roots; few fine and common very fine tubular pores; slightly alkaline (pH 7.4); clear smooth boundary. (15 to 30 cm thick)

C2--50 to 81 cm; pale brown (10YR 6/3) very fine sandy loam, brown (10YR 4/3) moist; massive; slightly hard, very friable, nonsticky and nonplastic; few fine and common very fine roots; common fine and very fine tubular pores; slightly alkaline (pH 7.8); clear smooth boundary. (20 to 40 cm thick)

Ck1--81 to 99 cm, pale brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; massive; slightly hard, friable, nonsticky, nonplastic; few fine and common very fine roots; common fine and very fine tubular pores; matrix is noneffervescent, common fine strongly effervescent soft masses of carbonate; slightly alkaline (pH 7.8); clear wavy boundary. (15 to 50 cm thick)

Ck2--99 to 112 cm; pale brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; massive; slightly hard, friable, slightly sticky, slightly plastic; common very fine roots; few fine and common very fine tubular pores; few fine soft masses of carbonate; slightly effervescent; moderately alkaline (pH 7.9); clear smooth boundary. (0 to 25 cm thick)

Ck3--112 to 140 cm; pale brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; massive; soft, very friable, slightly sticky, slightly plastic; common very fine roots; many very fine interstitial pores; slightly effervescent; moderately alkaline (pH 8.0); clear smooth boundary. (0 to 30 cm thick)

Ck4--140 to 157 cm; pale brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; massive; slightly hard, friable, slightly sticky, slightly plastic; common very fine roots; common very fine and few fine tubular pores; few fine soft masses of carbonate; slightly effervescent; slightly alkaline (pH 7.8).

TYPE LOCATION: Douglas County, Nevada; about 1,300 feet south and 750 feet west of the north quarter corner of section 10, T. 13 N., R. 20 E.; USGS McTarnahan Hill 7.5 minute topographic quadrangle; latitude 39 degrees 00 minutes 30 seconds N and longitude 119 degrees 43 minutes 36 seconds W; WGS84 Decimal Degrees 39.0083333 latitude, -119.7266667 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry, moist in winter and spring; aridic soil moisture regime bordering xeric.
Mean annual soil temperature: 11 to 12 degrees C.
Depth to base of the argillic horizon: 30 to 50 cm.
Depth to carbonates: 76 to 100 cm.

Particle-size control section - Clay content: 25 to 35 percent.
Sand content: 15 to 35 percent and less than 5 percent medium sand or coarser

A horizon
Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 2 or 3.
Reaction: Slightly acid through slightly alkaline.

Bt horizon
Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 2 or 3.
Texture: Loam or clay loam.
Structure: Usually prismatic, may be subangular blocky.
Reaction: Slightly acid to slightly alkaline.

C horizon
Hue: 10YR or 2.5Y.
Value: 5 or 6 dry.
Chroma: 2 or 3.
Texture: Stratified very fine sandy loam, loam and silt loam.

Ck horizon
Hue: 10YR or 2.5Y.
Value: 5 or 6 dry.
Chroma: 2 or 3.
Texture: Stratified very fine sandy loam, loam, silt loam, some pedons have sandy loam or loamy sand below 100 cm.
Reaction: Neutral through moderately alkaline
Carbonate equivalent: Less than 1 percent.

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

Abgese and Hoye soils have Btk horizons. Ackley and Greenbrae soils have the base of the argillic horizon greater than 50 cm. Blacknest and Windypoint soils have sand and gravel within 100 cm. Bluelight, Colbar, Eusbio, Nosser and Sidlake soils have bedrock within 100 cm. Hardtrigger soils have secondary carbonates within 69 cm. Harsan soils have a duripan within 100 cm. Hoosegow, Lankbush and Morfitt soils lack free carbonates within 100 cm. Shawave soils have less than 25 percent clay in the particle-size control section.

GEOGRAPHIC SETTING: Turria soils are on nearly level alluvial fans. These soils formed in alluvium derived from mixed rocks. Slopes are 0 to 2 percent. Elevations are 1,310 to 1,620 meters. The climate is semiarid. The mean annual precipitation is 180 to 250 mm; mean annual temperature is 9 to 10 degrees C; and the frost-free season is about 60 to 115 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gardnerville, Haybourne, McFaul, and competing Greenbrae soils. Gardnerville soils have contrasting textures and discontinuous silica cementation. Haybourne soils have coarse-loamy control sections and lack argillic horizons.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; slow runoff; moderately high saturated hydraulic conductivity. Some areas have altered drainage due to seepage from higher lying canals and irrigated areas and are somewhat poorly drained with a seasonal high water table at depths of 1.2 to 1.8 meters.

USE AND VEGETATION: Livestock grazing, urban development, and irrigated cropland. The vegetation is principally spiny hopsage, big sagebrush, bud sagebrush, saltbush, and horsebrush with an understory of cheatgrass and squirreltail. Irrigated areas are cropped to alfalfa hay and small grains.

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

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

SERIES ESTABLISHED: Douglas County (Carson Valley Area), Nevada l975.

REMARKS: Turria soils were classified as Medial Sierozems.

Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from 0 to 5 cm (A horizon).
Argillic horizon - The zone from 5 to 30 cm (Bt1, Bt2 and Bt3 horizons).
Particle-size control section - The zone from 5 to 30 cm (Bt1, Bt2 and Bt3 horizons).

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National Cooperative Soil Survey
U.S.A.