LOCATION BALDOCK ID+OR WYEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Typic Calciaquolls
TYPICAL PEDON: Baldock loam - rangeland. (Colors are for dry soil unless otherwise noted.)
Ak--0 to 8 inches; gray (2.5Y 5/1), light brownish gray (2.5Y 6/2) when crushed loam, very dark gray (10YR 3/1) moist; weak medium subangular blocky structure, parting to weak very fine granular, moderate very thin platy in upper 2 inches; slightly hard, friable, slightly sticky and slightly plastic; many very fine and fine, common medium and coarse roots; many fine tubular pores; few lime veins in channels; strongly effervescent; moderately alkaline (pH 8.2); clear smooth boundary. (3 to 10 inches thick)
ABk--8 to 16 inches; gray (2.5Y 6/1), light brownish gray (10YR 6/2) when crushed loam, very dark gray (10YR 3/1) moist; weak coarse and medium subangular blocky structure, parting to weak very fine granular; slightly hard, friable, slightly sticky and slightly plastic; common very fine and fine and few medium and coarse roots; many fine and few medium tubular pores; few lime veins; strongly effervescent; strongly alkaline (pH 8.5); clear smooth boundary. (0 to 12 inches thick)
Bk--16 to 27 inches; light brownish gray (2.5Y 6/2) loam, dark grayish brown (2.5Y 4/2) moist; few fine faint brown (10YR 5/3) mottles, dark brown (10YR 4/3) moist; massive; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and fine roots; many very fine and few fine and medium tubular pores; common fine lime veins; strongly effervescent; strongly alkaline (pH 8.5); gradual smooth boundary. (3 to 20 inches thick)
C1--27 to 33 inches; light brownish gray (2.5Y 6/2) loam, dark grayish brown (2.5Y 4/2) moist; few fine distinct brown (10YR 4/3) mottles, dark brown (10YR 3/3) moist; massive; slightly hard, very friable, slightly sticky and slightly plastic; few very fine roots; many very fine and few fine tubular pores; slightly effervescent; moderately alkaline (pH 8.4); gradual smooth boundary. (4 to 15 inches thick)
C2--33 to 56 inches; like C1 horizon, except for common mottles. (5 to 30 inches thick)
2C3--56 to 65 inches; light brownish gray (2.5Y 6/2) fine sandy loam, dark grayish brown (2.5Y 4/2) moist; common fine distinct brown (10YR 4/3) mottles, dark brown (10YR 3/3) moist; massive; slightly hard, very friable; few fine roots; many very fine tubular pores; moderately alkaline (pH 8.0). (0 to 30 inches thick)
TYPE LOCATION: Canyon County, Idaho; 245 feet north of road and 285 feet each of river in the SW 1/4 section 26, T. 6 N., R. 6 W.
RANGE IN CHARACTERISTICS:
Average annual soil temperature - 48 to 54 degrees F.
Depth to mottles - 7 to 20 inches
Texture of control section - L, SIL, or SCL
Clay content in control section - 18 to 27 percent
Salinity - slightly or moderately saline
Carbonate content - 3 to 15 percent in the A, B, and upper C horizons
A horizon
Hue - 10YR or 2.5Y
Value - 5 through 7 dry, 3 through 5 moist
Chroma - 1 or 2 dry or moist
B horizon
Hue - 10YR or 2.5Y
Value - 5 or 6 dry, 3 or 4 moist
Chroma - 1 or 2 dry or moist
Has mottles not due to segregated lime
Texture - L, SIL
C horizons
Hue - 10YR or 2.5Y
Texture - L, SIL, SL, FSL
Loose sand and pebbles may be below 40 inches
COMPETING SERIES: This is the Filion series. Filion soils lack a Bk horizon.
GEOGRAPHIC SETTING: Baldock soils are on alluvial fans, floodplains, lake basins, and low terraces at elevations of 2,000 to 4,500 feet. The soils formed in mixed alluvium. Slope is dominantly less than 1 percent but ranges to 4 percent. Average annual temperature is 46 to 52 degrees F and average annual precipitation is 6 to 12 inches including 0.5 to 3.0 feet of snow. Summers are dry. The average frost-free period is 110 to 160 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Balm, Bowman, Bramwell, Letha, Powder, Stanfield, and Wingville soils. Balm, Bowman, Powder, and Wingville soils have mollic epipedons. Bramwell soils are fine silty and have a calcic horizon. Letha soils are coarse loamy. Stanfield soils have a duripan. These soils all occupy similar landscape positions.
DRAINAGE AND PERMEABILITY: Poorly drained. Very slow or slow runoff. Moderate permeability. The water table fluctuates between 2 and 3 feet. Some areas have been drained and are somewhat poorly drained.
USE AND VEGETATION: Mainly irrigated pasture, hay, small grains, sugar beets, and corn. The potential natural vegetation is greasewood and saltgrass.
DISTRIBUTION AND EXTENT: Valleys of eastern Oregon and southern Idaho. The series is moderately extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Baker area, Baker County, Oregon, 1941.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from 0 to 16 inches (Ak, ABk horizons)
Cambic horizon - from 16 to 27 inches (Bk horizon)
Calcic horizon - the zone from 0 to 27 inches (Ak, ABK, and Bk horizons)
Mottles - at 16 inches
Moisture regime - aquic