LOCATION STRICKER IDEstablished Series
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 4,600 feet elevation. When described on August 7, 1977, the soil profile was dry throughout. (Colors are for dry soil unless otherwise noted.)
A--0 to 3 inches; 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. (2 to 6 inches thick)
Bw1--3 to 12 inches; brown (10YR 5/3) gravelly loam, very dark grayish brown (10YR 3/2) moist; weak medium subangular blocky structure; soft, 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. (8 to 12 inches thick)
Bw2--12 to 22 inches; 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. (8 to 14 inches thick)
Bk1--22 to 29 inches; 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); moderately alkaline (pH 8.4); clear smooth boundary. (5 to 12 inches thick)
Bk2--29 to 61 inches; very pale brown (10YR 7/3) extremely cobbly sandy loam, pale brown (10YR 6/3) moist; single grain; hard, firm; few fine and very fine roots; few very fine irregular pores; 30 percent gravel, 50 percent cobbles; strongly effervescent (30 percent calcium carbonate); strongly alkaline (pH 8.8).
TYPE LOCATION: Twin Falls County, Idaho; about 10 miles east of Hollister, Idaho, in the northeast 1/4, southeast 1/4, northwest 1/4, section 17, T. 12 S., R. 18 E.
RANGE IN CHARACTERISTICS:
Depth to bedrock - more than 60 inches
Mollic epipedon thickness - 10 to 18 inches
Depth to calcium carbonates - 18 to 32 inches
Average annual soil temperature - 48 to 50 degrees F.
A horizon
Color value, 4 or 5 dry, 2 or 3 moist
Chroma - 2 or 3
Gravel - 10 to 20 percent
Cobbles - 10 to 20 percent
Stones - 15 to 20 percent
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 10 to 40 inch control section. Bonnet soils have an average annual soil temperature of 54 to 59 degrees F. 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 40 inches.
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 4,300 to 6,000 feet. The average annual precipitation ranges from 12 to 16 inches. The average annual temperature is 46 to 48 degrees F. 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 PERMEABILITY: Well drained, medium or rapid runoff; moderate permeability.
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 OFFICE RESPONSIBLE: Reno, Nevada
SERIES PROPOSED: Twin Falls County, Idaho, 1979. The name is from a butte.
REMARKS: Base saturation: 0-3 inches - 63 percent; 3-12 inches - 62 percent; 12-22 inches - 60 percent.
Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - 0 to 12 inches (A and Bw1 horizons)
Cambic horizon - 3 to 22 inches (Bw1 and Bw2 horizons)
Calcic horizon - 22 to 61 inches (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.