LOCATION DOODLELINK IDEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, frigid Pachic Ultic Haploxerolls
TYPICAL PEDON: Doodlelink very gravelly loam -- on a north-facing slope of 55 percent under native rangeland at 4,700 feet elevation. When described on October 3, l977, the soil profile was dry. (Colors are for air dry soil unless otherwise stated.)
A--0 to 6 inches; dark grayish brown (l0YR 4/2) very gravelly loam, black (l0YR 2/l) moist; weak fine granular structure; soft, very friable, slightly sticky and slightly plastic; many very fine and fine roots; many very fine and fine tubular pores; 50 percent gravel; neutral (pH 7.0); gradual wavy boundary. (6 to 8 inches thick)
Bwl--6 to l2 inches; dark brown (l0YR 4/3) very gravelly loam, black (l0YR 2/l) moist; weak fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine and fine roots; many very fine and fine tubular pores; 50 percent gravel; neutral (pH 7.0); clear smooth boundary. (6 to 8 inches thick)
Bw2--l2 to 21 inches; brown (l0YR 5/3) very gravelly loam, dark brown (l0YR 3/3) moist; weak fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine and fine roots; many very fine and fine tubular pores; 50 percent gravel; neutral (pH 7.0); clear smooth boundary. (8 to l4 inches thick)
Bw3--21 to 36 inches; yellowish brown (l0YR 5/4) extremely gravelly clay loam, dark brown (l0YR 4/3) moist; weak medium subangular blocky structure; hard, friable, sticky and plastic; common very fine and fine roots; many very fine and fine tubular pores; 70 percent gravel;
neutral (pH 7.0); gradual wavy boundary. (l0 to 20 inches thick)
C--36 to 65 inches; brown (l0YR 5/3) extremely gravelly clay loam, very dark grayish brown (l0YR 3/2) moist; massive; slightly hard, friable, sticky and plastic; common very fine and fine roots; common very fine tubular pores; 70 percent gravel; neutral (pH 7.0).
TYPE LOCATION: Twin Falls County, Idaho; about 14 miles east of Rogerson; southeast 1/4, southeast 1/4, southeast 1/4, sec. 36, T. 12 S., R. 18 E.
RANGE IN CHARACTERISTICS:
Average annual soil temperature - 41 to 47 degrees F.
Mollic epipedon thickness - 20 to 30 inches.
Organic carbon content ( A horizon) - .6 to 2 percent.
Base saturation in the upper 30 inches - 55 to 75 percent. Particle-size control section coarse fragment content -
40 to 80 percent (mostly gravel).
Particle-size control section percent clay (average) -
20 to 30 percent.
Depth to bedrock or welded ash - 60 inches or more.
A & Bw1 horizons
Value - 3 through 5 dry, 2 or 3 moist.
Chroma - 1 through 3 dry or moist.
Bw2, Bw3, & C horizons
Value - 4 through 6 dry, 3 or 4 moist.
Chroma - 1 through 4 dry or moist.
Textures - GRX-CL, GRV-SL, GRX-L, GRV-L.
Coarse fragments - 40 to 80 percent (mostly gravel).
COMPETING SERIES: These are the Buckcreek, Gimlett, Lamondi, Moweba, Piersonte, Scoap, and Umatilla series. Buckcreek soils are 20 to 40 inches deep over bedrock. Gimlett soils contain less than 18 percent clay in the control section. Lamondi soils are slightly acid or medium acid. Moweba soils have 7.5YR, 5YR, or 2.5YR hues in the B horizon. Piersonte soils have O horizons and rock fragments of shale. Scoap soils have 8 to 12 percent clay in the control section. Umatilla soils have O horizons and have a dominance of cobbles in the control section.
GEOGRAPHIC SETTING: Doodlelink soils are on mountainsides and breaks. Slopes range from 5 to 75 percent. The soils formed in colluvium and slope alluvium weathered from extrusive igneous rocks and volcanic ash. Elevations are 4,700 to 7,200 feet. The average annual precipitation ranges from 14 to 20 inches. The average annual air temperature is 40 to 45 degrees F. The frost-free period is 60 to 100 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Amboat, Brose, Congle, Nawt, Oshone, Stricker, and Tucker soils. Amboat and Brose soils occur on summits. Amboat soils are clayey-skeletal. Brose soils are shallow. Congle soils occur on the same landscape, but are not skeletal. Nawt and Stricker soils occur on the same landscape, but at lower elevations, are mesic, and are not pachic. Oshone soils occur on terraces, are fine and moderately deep to a hardpan. Tucker soils occur on terraces, are fine and somewhat poorly drained.
DRAINAGE AND PERMEABILITY: Well drained; medium or rapid runoff; moderately slow permeability.
USE AND VEGETATION: Doodlelink soils are used mainly for rangeland and wildlife habitat. Natural vegetation is Idaho fescue, bluebunch wheatgrass, and mountain big sagebrush.
DISTRIBUTION AND EXTENT: Southcentral and southwestern Idaho. The series is of moderate extent.
MLRA OFFICE RESPONSIBLE: Reno, Nevada
SERIES ESTABLISHED: Cassia County, Idaho, l986.
REMARKS: Diagnostic horizons and other features recognized in this pedon:
Mollic epipedon - the zone from the surface to 21 inches (A, Bw1, and Bw2 horizons)
Particle-size control section - the zone from 10 to 40 inches (Bw1, Bw2, Bw3 horizons, and part of the C horizon)
Ultic feature - base saturation between 50 and 75 percent from the surface to a depth of greater than 75 cm.
(0-6 inches-58 percent; 6-12 inches-65 percent; 12-20 inches-67 percent; 20-36 inches-65 percent.)
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.