LOCATION CHIJER IDEstablished Series
TAXONOMIC CLASS: Coarse-silty, mixed, superactive, mesic Durinodic Xeric Haplocalcids
TYPICAL PEDON: Chijer very fine sandy loam--on a north northwest facing slope of 1.5 percent in rangeland. When described on October 17, 1987, the soil was slightly moist below 26 inches. (Colors are for dry soil unless otherwise noted.)
A1--0 to 2 inches; brown (10YR 5/3) very fine sandy loam, dark brown (10YR 3/3) moist; weak very thin and thin platy structure parting to moderate very fine and fine subangular blocky; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and few fine roots; few very fine tubular and many very fine irregular pores; neutral (pH 6.9); abrupt smooth boundary. (1 to 11 inches thick)
A2--2 to 6 inches; brown (10YR 5/3) very fine sandy loam, dark brown (10YR 4/3) moist; moderate very coarse prismatic structure parting to weak thin and medium platy; slightly hard, very friable, slightly sticky and slightly plastic; many very fine and few fine roots concentrated on prism faces; few very fine tubular and common very fine and few fine irregular pores; slightly alkaline (pH 7.4); clear smooth boundary. (0 to 10 inches thick)
Bk--6 to 11 inches; pale brown (10YR 6/3) loam, brown (10YR 5/3) moist; moderate very coarse prismatic structure parting to weak thin and medium platy; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and few fine roots concentrated on prism faces; many very fine tubular and common very fine irregular pores; disseminated lime; strong effervescence (9 percent calcium carbonate equivalent); moderately alkaline (pH 8.1); clear wavy boundary. (2 to 9 inches thick)
Bkq1--11 to 16 inches; pale brown (10YR 6/3) loam, brown (10YR 5/3) moist; weak very fine and fine subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine roots; common very fine tubular and interstitial pores; 5 percent weakly lime and silica cemented cicada nodules; violent effervescence (20 percent calcium carbonate equivalent); moderately alkaline (pH 8.3); clear smooth boundary. (3 to 8 inches thick)
Bkq2--16 to 19 inches; very pale brown (10YR 7/3) loam, pale brown (10YR 6/3) moist; moderate thin, medium and coarse platy structure, plates are highly disturbed due to cicada nodules; hard, very friable, slightly sticky and slightly plastic; common very fine roots; few very fine tubular and common very fine interstitial pores; 20 percent weakly lime and silica cemented cicada nodules; violent effervescence (20 percent calcium carbonate equivalent); moderately alkaline (pH 8.4); abrupt wavy boundary. (3 to 11 inches thick)
Bkq3--19 to 24 inches; very pale brown (10YR 8/3) silt loam, pale brown (10YR 6/3) moist; massive; hard, very friable, slightly sticky and slightly plastic; few very fine roots ; common very fine tubular pores; 35 percent weakly lime and silica cemented cicada nodules; violent effervescence (20 percent calcium carbonate equivalent); moderately alkaline (pH 8.4); clear wavy boundary. (5 to 13 inches thick)
Bkq4--24 to 29 inches; pale brown (10YR 6/3) very fine sandy loam, brown (10YR 5/3) moist; massive; hard, friable, slightly sticky and slightly plastic; few very fine roots; common very fine tubular pores; 35 percent lime and silica cemented cicada nodules; violent effervescence (15 percent calcium carbonate equivalent); moderately alkaline (pH 8.4); gradual wavy boundary. (0 to 19 inches thick)
Bkq5--29 to 48 inches; pale brown (10YR 6/3) very fine sandy loam, brown (10YR 5/3) moist; massive; very hard, very firm, slightly sticky; common very fine roots; common very fine tubular and few very fine and fine interstitial pores; trace of rock fragments; vertical fractures in this layer; roots and lime and silica coatings all follow fractures; violent effervescence (15 percent calcium carbonate equivalent); moderately alkaline (pH 8.3); gradual wavy boundary. (2 to 20 inches thick)
Bkq6--48 to 61 inches; light yellowish brown (10YR 6/4) very fine sandy loam, yellowish brown (10YR 5/4) moist; massive; hard, firm, slightly sticky; few very fine roots; common very fine tubular pores; trace of rock fragments; vertical fractures in this layer, roots and lime and silica coatings all follow fractures; violent effervescence (15 percent calcium carbonate equivalent); moderately alkaline (pH 8.4).
TYPE LOCATION: Gooding County, Idaho: 6 miles west and 1.5 miles south of Gooding; 2580 feet south and 110 feet east of the northwest corner of section 17, T. 6 S., R. 14 E.
RANGE IN CHARACTERISTICS:
Average annual soil temperature - 50 to 53 degrees F.
Depth to calcic horizon - 6 to 23 inches
Depth to durinodes - 11 to 31 inches
Reaction - neutral to strongly alkaline
Present in some pedons - 2Bkqm horizons at a depth of 40 to 60 inches
A horizons
Value - 5 or 6 dry, 3 or 4 moist
Chroma - 2 or 3 dry or moist
Calcium carbonate content - 0 to 15 percent
Bk horizons
Value - 6 or 7 dry, 3 through 5 moist
Chroma - 2 or 3 dry or moist
Texture - SIL, VFSL, L
Clay content - 8 to 18 percent
Calcium carbonate equivalent - 6 to 30 percent
Cemented cicada nodules - 0 to 15 percent - weakly cemented; slightly hard or hard dry, friable to firm moist
Bkq horizons
Value - 6 through 8 dry, 3 through 6 moist
Chroma - 2 through 4 dry or moist
Texture - SIL, VFSL, L
Clay content - 2 to 18 percent
Rock fragments - 0 to 5 percent pebbles, 0 to 5 percent cobbles Calcium carbonate equivalent - 20 to 40 percent
Cemented cicada nodules - 20 to 35 percent - strongly cemented hard or very hard dry, firm or very firm moist in the Bkq2 and Bkq3 horizons
2Bkqm horizons (when present)
Thickness of laminar caps - 1 to 4 mm
Cementation of material between caps - strongly cemented or indurated Distance between caps - 0.5 to 3 inches
COMPETING SERIES: These are the Hynes and Portneuf series. Portneuf soils are silt loam throughout the profile.
GEOGRAPHIC SETTING: Chijer soils are on basalt plains and buttes. These soils formed in alluvium with eolian influence. Slopes are 0 to 8 percent. Elevation is 3200 to 4600 feet. The average annual precipitation is 8 to 11 inches. The average annual temperature is 48 to 51 degrees F. and the frost free period is 100 to 120 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Ackley, Declo, Fathom (T), Kecko, Minveno, Starbuck, Taunton, Ticeska (T), and Wako (T) soils. Ackley and Wako soils have argillic horizons. Minveno, Taunton, and Ticeska soils have duripans above 40 inches. Declo, Fathom, and Kecko soils contain less than 20 percent durinodes in the control section. Starbuck soils have bedrock above 20 inches. All these soils are on the same land form as Chijer soils.
DRAINAGE AND PERMEABILITY: Well drained; runoff is slight; permeability is moderate.
USE AND VEGETATION: Chijer soils are used for irrigated crops, pasture, and hay.
DISTRIBUTION AND EXTENT: Chijer soils are of small extent in south central Idaho.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Gooding County, Idaho, 1993.
REMARKS: This revision changes the classification form coarse-loamy to coarse-silty. Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from the soil surface to 6 inches (A1 and A2 horizons)
Calcic horizon - the zone from 6 to 48 inches (Bk, Bkq1, Bkq2, Bkq3, Bkq4, Bkq5 horizons)
Durinodic Xeric feature - the zone from 16 to 24 inches - contains a layer greater than 7 inches thick with more than 20 percent durinodes (Bkq2 and Bkq3 horizons)
ADDITIONAL DATA: This soil has been sampled by NSSL. The soil survey sample number is S87ID-047-001 and the pedon number is 88P1. Placement into coarse-silty based on silt plus very fine sand equals 80 to 90 percent and clay is 3 to 16 percent.