LOCATION STRICKER ID

Established Series
Rev. DFA/DMD/HBM
11/2019

STRICKER SERIES

The Stricker series consists of soils that are well drained and very deep, that formed in colluvium from welded tuff. They are on breaks. Permeability is moderate. Slopes range from 15 to 75 percent. The average annual precipitation is about 360 mm, and the average annual temperature is about 8.3 degrees C.

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, mesic Calcic Haploxerolls

TYPICAL PEDON: Stricker very stony loam - on a west-facing slope of 50 percent under rangeland vegetation at 1,405 meter elevation. When described on August 7, 1977, the soil profile was dry throughout. (Colors are for dry soil unless otherwise noted.)

A--0 to 8 cm; grayish brown (10YR 5/2) very stony loam, very dark grayish brown (10YR 3/2) moist; weak fine granular structure; soft, very friable, slightly sticky and slightly plastic; many very fine through coarse roots; many very fine tubular pores; 15 percent gravel, 5 percent cobbles, 20 percent stones; neutral (pH 7.0); gradual wavy boundary. (5 to 15 cm thick)

Bw1--8 to 30 cm; brown (10YR 5/3) gravelly loam, very dark grayish brown (10YR 3/2) moist; weak medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; many very fine through coarse roots; many very fine tubular pores; 25 percent gravel, 5 percent cobbles; neutral (pH 7.2); clear smooth boundary. (20 to 30 cm thick)

Bw2--30 to 56 cm; pale brown (10YR 6/3) extremely cobbly loam, brown (10YR 4/3) moist; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine through medium roots; many very fine tubular pores; 35 percent gravel, 40 percent cobbles; neutral (pH 7.2); abrupt smooth boundary. (20 to 46 cm thick)

Bk1--56 to 74 cm; very pale brown (10YR 7/3) extremely cobbly loam, brown (10YR 5/3) moist; massive; hard, firm, slightly sticky and slightly plastic; common very fine through medium roots; common very fine irregular pores; 30 percent gravel, 35 percent cobbles; strongly effervescent (18 percent calcium carbonate equivalent); moderately alkaline (pH 8.4); clear smooth boundary. (13 to 30 cm thick)

Bk2--74 to 155 cm; very pale brown (10YR 7/3) extremely cobbly sandy loam, pale brown (10YR 6/3) moist; massive; hard, firm, nonsticky and nonplastic; few fine and very fine roots; few very fine irregular pores; 30 percent gravel, 50 percent cobbles; strongly effervescent (30 percent calcium carbonate equivalent); strongly alkaline (pH 8.8).

TYPE LOCATION: Twin Falls County, Idaho; about 10 miles east of Hollister, Idaho, about 1,720 feet south and 2,600 feet east of the northwest corner of section 17, T. 12 S., R. 18 E.; USGS Stricker Butte 7.5 minute topographic quadrangle; latitude 42 degrees 23 minutes 03 seconds N and longitude 114 degrees 22 minutes 23 seconds W; WGS84 Decimal Degrees 42.3841667 latitude, -114.3730556 longitude.

RANGE IN CHARACTERISTICS:

Depth to bedrock - more than 150 cm.
Mollic epipedon thickness - 25 to 46 cm.
Depth to calcium carbonates - 46 to 81 cm
Average annual soil temperature - 8.9 to 10.0 degrees C.
Average annual precipitation - 300 to 410 mm. Soil Moisture: This soil is usually moist, but is dry for 45 to 70 consecutive days during the late summer and autumn. Typic xeric moisture regime.

A horizon
Color value, 4 or 5 dry, 2 or 3 moist
Chroma - 2 or 3

Bw horizon
Color value, 5 or 6 dry, 3 or 4 moist
Chroma - 2 through 4
Texture - CVB-L, CBV-CL, GRV-L, CBX-L, GRV-SIL
Clay percent - 24 to 30
Gravel - 30 to 40 percent
Cobbles - 10 to 40 percent

Bk horizon
Color value, 6 or 7 dry, 5 or 6 moist
Chroma - 3 or 4
Texture - GRX-L, CBV-L, CBX-L, CBX-SL
Gravel - 20 to 40 percent
Cobbles - 30 to 50 percent
Calcium carbonate equivalent - 15 to 35 percent

COMPETING SERIES: These are the Alpowa, Bonnet, Copperton, Hupp, Lakewin, and Middle series. The Alpowa, Bonnet, and Copperton soils lack a cambic horizon. Alpowa and Lakewin soils have less than 18 percent clay in the 25 to 100 cm control section. Bonnet soils have an average annual soil temperature of 12.2 to 15.0 degrees C. Copperton soils lack a cambic horizon, and have weakly to moderately cemented Bk horizons. Hupp soils have 18 to 24 percent clay in the cambic horizon. Middle soils have bedrock at depths of less than 100 cm.

GEOGRAPHIC SETTING: Stricker soils are on breaks. The slope ranges from 15 to 75 percent. The soils formed in colluvium from welded tuff. Elevations are 1,310 to 1,830 meters. The average annual precipitation ranges from 300 to 410 cm. The average annual temperature is 7.8 to 8.0 degrees C. The frost free season is 100 to 110 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Congle, Doodlelink, Flatron, Gosinta, Nawt, Ragpie, Rogerson, and Schnipper soils. Congle and Doodlelink soils occur on the same landscape, but at higher elevations, and are Pachic. Flatron and Ragpie soils occur on ridgetops and dipslopes, and are shallow to bedrock. Gosinta soils occur on alluvial terraces, are not skeletal, and are moderately well drained. Nawt soils are fine. Rogerson and Schnipper soils occur on terraces. Rogerson soils are shallow to a hardpan. Schnipper soils are moderately deep to hardpan.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained, medium or rapid runoff; moderate saturated hydraulic conductivity.

USE AND VEGETATION: Stricker soils are used for rangeland. Native vegetation is bluebunch wheatgrass, Sandberg bluegrass, Thurber needlegrass, and Wyoming big sagebrush.

DISTRIBUTION AND EXTENT: Stricker soils are of small extent in south central Idaho. MLRA 25.

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

SERIES PROPOSED: Twin Falls County, Idaho, 1979. The name is from a butte.

REMARKS: Base saturation: 0 to 8 cm - 63 percent8 to 30 cm - 62 percent; 30 to 56 cm - 60 percent.

Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - 0 to 30 cm (A and Bw1 horizons).
Cambic horizon - 8 to 56 cm (Bw1 and Bw2 horizons.)
Calcic horizon - 56 to 155 cm (Bk1 and Bk2 horizons.)

The superactive cation exchange activity class was added in 03/2003 to the taxonomic classification by the National Soil Survey Center on request of the Reno MLRA office, without review of the soil series property data. The remainder of this document has not been updated.

National Cooperative Soil Survey
U.S.A.