LOCATION PARDING IDEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive Calcic Haplocryolls
TYPICAL PEDON: Parding silt loam, rangeland - on a southwest-facing 13 percent slope at an elevation of 7,140 feet. (Colors are for dry soil unless otherwise stated.)
A--0 to 5 inches; brown (7.5YR 4/4) silt loam, dark brown (7.5YR 3/2) moist; moderate fine granular structure; soft, very friable, nonsticky and nonplastic; many very fine, fine, medium, and coarse roots; many very fine and fine interstitial pores; slightly alkaline (pH 7.7); clear smooth boundary. (3 to 8 inches thick)
Bw--5 to 14 inches; brown (7.5YR 4/4) silt loam, dark reddish brown (5YR 3/3) moist; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine, fine, and medium roots; many very fine and fine interstitial pores; slightly alkaline (pH 7.7); clear wavy boundary. (6 to 12 inches thick)
Bk1--14 to 22 inches; reddish brown (5YR 5/4) loam, reddish brown (5YR 4/4) moist; strong fine subangular blocky structure; slightly hard, firm, slightly sticky and slightly plastic; many very fine and fine, and common medium roots; many very fine interstitial and tubular pores; 10 percent gravel; disseminated lime, common fine masses of lime; violently effervescent (24 percent calcium carbonate equivalent); moderately alkaline (pH 8.0); abrupt wavy boundary. (6 to 10 inches thick)
Bk2--22 to 27 inches; light gray (10YR 7/2) gravelly loam, pale brown (10YR 6/3) moist; weak medium platy structure parting to moderate medium subangular blocky; hard, firm, slightly sticky and slightly plastic; common very fine and fine roots; many very fine interstitial pores; 15 percent gravel; disseminated lime, common 1/8 inch thick horizontal masses of lime; violently effervescent (47 percent calcium carbonate equivalent); moderately alkaline (pH 8.2); clear wavy boundary. (3 to 7 inches thick)
Bk3--27 to 36 inches; pink (5YR 7/3) loam, reddish brown (5YR 5/4) moist; strong medium angular blocky structure; hard, firm, slightly sticky and slightly plastic; common very fine and fine roots; common very fine interstitial and tubular pores; 5 percent gravel; disseminated lime, common fine and medium masses of lime; violently effervescent (41 percent calcium carbonate equivalent); moderately alkaline (pH 8.4); abrupt wavy boundary. (6 to 12 inches thick)
Bk4--36 to 48 inches; pink (5YR 7/3) sandy loam, yellowish red (5YR 5/6) moist; strong medium angular blocky structure; very hard, firm, nonsticky and nonplastic; few very fine and fine roots; common very fine interstitial and tubular pores; disseminated lime, common fine masses of lime; violently effervescent (41 percent calcium carbonate equivalent); moderately alkaline (pH 8.4); abrupt wavy boundary. (9 to 15 inches thick)
Bk5--48 to 60 inches; white (10YR 8/1) gravelly sandy loam, pale brown (10YR 6/3) moist; strong medium platy structure; hard, firm, nonsticky and nonplastic; few very fine and fine roots; few fine interstitial pores; 15 percent gravel; disseminated lime; common fine masses of lime; violently effervescent; strongly alkaline (pH 8.6).
TYPE LOCATION: Bear Lake County, Idaho; about 1,950 feet north and 2,350 feet east of the southwest corner of section 9, T. 13 S., R. 45 E. (Latitude 42 degrees 17 minutes 50 seconds N., Longitude 111 degrees 11 minutes 55 seconds W.)
RANGE IN CHARACTERISTICS:
Soil moisture control section - usually moist, dry for 45 consecutive days or more in the four months following the summer solstice. Xeric soil moisture regime.
Average annual soil temperature - 39 to 43 degrees F.
Average summer soil temperature - 54 to 59 degrees F. Cryic soil temperature regime.
Mollic epipedon thickness - 10 to 16 inches Depth to secondary lime - 10 to 16 inches
Particle-size control section
Clay percent - 10 to 18 percent
Rock fragments - 0 to 20 percent
Calcium carbonate equivalent - averages 30 to 35 percent
A horizon
Hue: 7.5YR or 10YR
Value: 4 or 5 dry, 2 or 3 moist
Chroma: 3 or 4 dry, 2 or 3 moist
Clay content: 10 to 18 percent
Reaction: neutral or slightly alkaline
Bw horizon
Hue: 7.5YR or 10YR
Value: 4 or 5 dry, 2 or 3 moist
Chroma: 4 or 5 dry, 2 or 3 moist
Texture: SIL, L
Clay content: 12 to 18 percent
Rock fragments: 0 to 20 percent gravel
Reaction: slightly or moderately alkaline
Bk horizons
Hue: 5YR, 7.5YR, 10YR
Value: 5 through 8 dry, 4 through 6 moist
Chroma: 1 through 4 dry, 3 through 6 moist
Texture: L, GR-L, SL, GR-SL
Clay content: 8 to 18 percent
Rock fragments: 0 to 20 percent gravel
Calcium Carbonate equivalent: 20 to 47 percent
Reaction: moderately or strongly alkaline
COMPETING SERIES:
Ard (ID) - is moderately deep to lithic contact.
Corralcreek (ID) - is moderately deep to lithic contact.
Corralridge (ID) - is 20 to 34 inches to secondary carbonates
GEOGRAPHIC SETTING: Parding soils are on hillsides and mountain slopes. These soils formed in loess and slope alluvium from limestone. Slopes are 5 to 40 percent. Elevations range from 6,150 to 7,650 feet. The average annual precipitation ranges from 14 to 24 inches and the average annual temperature ranges from 36 to 41 degrees F. The frost-free season is 50 to 70 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Firading (T) and Hagenbarth soils. Firading soils have a pachic epipedon and are 20 to 40 inches to bedrock on convex slopes. Hagenbarth soils have clay accumulation in the subsoil and are on plane to smooth slopes.
DRAINAGE AND PERMEABILITY: Well drained; very rapid runoff; moderate permeability
USE AND VEGETATION: Rangeland and wildlife habitat. Native vegetation is mountain big sagebrush, snowberry, and bluebunch wheatgrass.
DISTRIBUTION AND EXTENT: Southeast Idaho. These soils are of small extent. MLRA 43B.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Bear Lake County, Idaho, 2008. The name is coined.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - the zone from 0 to 14 inches (A and Bw horizon)
Calcic horizon - the zone from 14 to 60 inches (Bk1, Bk2, Bk3, Bk4, and Bk5 horizons)
Particle-size control section - the zone from 10 to 40 inches (part of the Bw, Bk1, Bk2, Bk3, and part of the Bk4 horizons)