LOCATION SAGLEY OREstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, mesic Pachic Argixerolls
TYPICAL PEDON: Sagley silt loam - rangeland, on a 53 percent slope at an elevation of 2100 feet. (Colors are for moist soil unless otherwise noted.)
A--0 to 7 inches; black (10YR 2/1) silt loam, very dark grayish brown (10YR 3/2) dry; weak fine subangular blocky structure; soft, very friable, nonsticky and nonplastic; many very fine and fine roots; many very fine and fine tubular pores; 5 percent gravel; neutral (pH 7.0); clear smooth boundary.
AB--7 to 18 inches; very dark brown (10YR 2/2) silt loam, dark grayish brown (10YR 4/2) dry; moderate medium and coarse subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine and fine roots; common very fine and fine tubular pores; 5 percent gravel; neutral (pH 6.8); clear smooth boundary. (Combined thickness of the A horizon is 12 to 22 inches.)
Bt1--18 to 26 inches; very dark grayish brown (10YR 3/2) very cobbly clay loam, brown (10YR 4/3) dry; moderate medium and coarse subangular blocky structure; slightly hard, friable, sticky and slightly plastic; common very fine, fine and few medium roots; common very fine, fine and few medium tubular pores; few faint clay films on faces of peds and lining pores; 30 percent cobbles and 15 percent gravel; neutral (pH 6.8); clear smooth boundary.
Bt2--26 to 34 inches; very dark grayish brown (10YR 3/2) cobbly clay loam, brown (10YR 4/3) dry; moderate fine and medium subangular blocky structure; slightly hard, friable, sticky and plastic; few very fine, fine and medium roots; few very fine, fine and medium tubular pores; common faint clay films on faces of peds and lining pores; 15 percent cobbles and 15 percent gravel; neutral (pH 6.8); clear smooth boundary.
Bt3--34 to 50 inches; dark brown (10YR 3/3) very cobbly clay loam, brown (10YR 5/3) dry, moderate medium and coarse subangular blocky structure; hard, firm, sticky and plastic; few very fine and fine roots; few very fine and fine tubular pores; many distinct clay films on faces of peds and lining pores; 40 percent cobbles and 15 percent gravel; neutral (pH 6.8); abrupt wavy boundary. (Combined thickness of the Bt horizon is 28 to 43 inches)
R--50 inches; basalt bedrock.
TYPE LOCATION: Wasco County, Oregon: 600 feet north and 1500 feet east of the SW corner of section 28, T.8 S., R.12 E. (Warm Springs Indian Reservation). (Latitude 44 degrees, 50 minutes, 56 seconds N., Longitude 121 degrees, 18 minutes, 25 seconds W.)
RANGE OF CHARACTERISTICS: These soils are usually moist but are dry in all parts of the moisture control section for 60 to 90 consecutive days within the four months that follow the summer solstice. The mean annual soil temperature is 50 to 52 degrees F. Depth to bedrock is 40 to 60 inches. The particle-size control section averages 27 to 35 percent clay and 35 to 60 percent rock fragments. The mollic epipedon is 40 to 50 inches thick and may include all or part of the Bt horizon.
The A horizon has value of 2 or 3 moist, 3 or 4 dry and chroma of 1 or 2 moist and dry. It contains 0 to 10 percent gravel.
The Bt horizon has value of 3 or 4 moist, 4 or 5 dry and chroma of 2 or 3 moist and dry. It is silty clay loam or clay loam. It contains 15 to 50 percent cobbles and 10 to 25 percent gravel.
COMPETING SERIES: These are the Blint (T), Carrcreek, Copperfield, Dillcourt (T), Hyrum, Jadpor (T), Kettenbach (T), Lainand (T), McDaniel, Norod (T) and Ricketts (T) series. Blint soils are 20 to 40 inches to bedrock and have a soil moisture control section that is dry for 90 to 100 consecutive days following the summer solstice. Carrcreek soils are more than 60 inches to mixed alluvium, and have a mollic epipedon 20 to 35 inches thick. Copperfield soils are more than 60 inches to bedrock, and are 40 to 50 inches to an argillic horizon with 35 to 50 percent clay. Dillcourt soils have soil temperature of 47 to 50 degrees F., have a mollic epipedon 20 to 26 inches thick, and are more than 60 inches to bedrock. Hyrum soils are more than 60 inches to lacustrine sediments and have a mollic epipedon 20 to 45 inches thick. Jadpor soils are more than 60 inches to bedrock and have a soil moisture control section that is dry for 115 to 125 consecutive days following the summer solstice. Kettenbach soils 20 to 40 inches to bedrock and have a mollic epipedon 20 to 30 inches thick. Lainand soils have a soil moisture control section that is dry for 90 to 100 consecutive days following the summer solstice. McDaniel soils are more than 60 inches to bedrock and have a mollic epipedon 20 to 40 inches thick. Norod soils are 20 to 40 inches to bedrock. Ricketts soils are 20 to 40 inches to bedrock and have a soil moisture control section that is dry for 110 to 120 consecutive days following the summer solstice.
GEOGRAPHIC SETTING: Sagley soils are on strongly sloping to steep north facing slopes of canyons. Elevations are 1800 to 3000 feet. Slopes are 12 to 55 percent. The soil formed in residuum and colluvium derived dominantly from basalt with an influence of loess in the surface. The climate is characterized by cool, wet winters and hot, dry summers. The mean annual precipitation is 12 to 14 inches. The mean annual temperature is 48 to 50 degrees F. The frost-free period is 100 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are Kishwalk, Rockly, Watama, and Waterbury soils. Kishwalk soils are on south-facing side slopes, are clayey-skeletal and are shallow to bedrock. Rockly soils are on patterned ground and are very shallow to bedrock. Watama soils are on patterned ground, are fine-loamy and are moderately deep to bedrock. Waterbury soils are on south-facing side slopes, clayey-skeletal and are moderately deep to bedrock.
DRAINAGE AND PERMEABILITY: Well drained. Permeability is moderately slow.
USE AND VEGETATION: These soils are used for livestock grazing and wildlife habitat. The native vegetation is Idaho-fescue, bluebunch wheatgrass, and Sandberg bluegrass.
DISTRIBUTION AND EXTENT: North-central Oregon; MLRA 10. The soils of this series are not extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Wasco County (Warm Springs Indian Reservation), Oregon, 1993.
REMARKS: Diagnostic horizons and features in this pedon are:
Pachic feature - from the surface to 50 inches.
Argillic horizon - from 18 to 50 inches (Bt1, Bt2 and Bt3 horizons).
Particle-size control section - from 18 to 38 inches (Bt1, Bt2, Bt3 horizons) with a weighted average of 39 percent rock fragments.
ADDITIONAL DATA: Sagley sampled for organic carbon, 15-bar water, and pH from 0 to 34 inches. Sample # S89OR-674-006, pedon # 89T33, Warm Springs, Oregon; NSSL, Lincoln, NE., 3/89.