LOCATION SCRABBLERS WAEstablished Series
TAXONOMIC CLASS: Sandy, isotic, frigid Andic Haploxerepts
TYPICAL PEDON: Scrabblers ashy very fine sandy loam - woodland. (Colors are for dry soil unless otherwise stated.)
0e--0 to 0.5 inches; very dark grayish brown (10YR 3/2) moist; loose, partially decomposed organic litter, composed of needles, leaves, twigs, bark, and cones; abrupt smooth boundary. (1/2 to 4 inches thick)
A--0.5 to 6 inches; pale brown (10YR 6/3) ashy very fine sandy loam, brown (10YR 4/3) moist; weak fine and fine subangular blocky structure; soft, friable, slightly sticky and slightly plastic and weakly smeary; common fine and medium, and few coarse roots; many fine pores; 2 percent pebbles; slightly acid (pH 6.2); clear wavy boundary. (4 to 7 inches thick)
Bw--6 and 11 inches; light yellowish brown (10YR 6/4) ashy very fine sandy loam, dark yellowish brown (10YR 4/4) moist; weak fine and medium subangular blocky structure; soft, friable, slightly sticky, slightly plastic and weakly smeary; common fine and medium, and few coarse roots; many fine pores; 3 percent pebbles; slightly acid (pH 6.4); clear wavy boundary. (3 to 7 inches thick)
2BC--11 to 19 inches; very pale brown (10YR 7/3) sandy loam, yellowish brown (10YR 5/4) moist; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common fine and medium, and few coarse roots; common medium and coarse pores; 10 percent pebbles; neutral (pH 6.8); clear wavy boundary. (5 to 9 inches thick)
2C1--19 to 28 inches; very pale brown (10YR 8/3) gravelly loamy sand, light yellowish brown (2.5Y 6/4) moist; massive; soft, very friable; few medium and coarse roots; few coarse pores; 15 percent pebbles; neutral (pH 7.0); clear wavy boundary. (8 to 10 inches thick)
2C2--28 to 60 inches; pale yellow (5Y 8/3) gravelly loamy sand, light yellowish brown (2.5Y 6/4) moist; massive; soft, very friable; few medium and coarse roots; few coarse pores; 20 percent pebbles; neutral (pH 7.2); gradual wavy boundary.
TYPE LOCATION: Stevens County, Washington; 2,600 feet south and 1,500 feet west of the northeast corner of sec. 1, T. 35 N., R. 41 E., WM.
RANGE IN CHARACTERISTICS: The mean annual soil temperature at a depth of 20 inches ranges from 44 degrees to 46 degrees F. Thickness of the mantle of volcanic ash is 7 to 14 inches and has an estimated moist bulk density of 0.75 to 0.85 g/cc, volcanic glass content of 30 to 60 percent, acid-oxalate extractable aluminum plus one-half of the acid-oxalate extractable iron of 1.0 to 2.0 percent and 15-bar water retention of 5 to 12 percent for air dried samples.. These soil are usually moist but are dry in all parts between depths of 8 and 24 inches for 45 to 75 consecutive days following the summer solstice. Coarse fragments in the particle-size control section average 5 to 35 percent. The soil is slightly acid or neutral throughout.
The A horizon has value of 4 through 6 dry, 2 through 4 moist, and chroma of 2 through 4 moist or dry.
The Bw horizon has hue of 10YR or 7.5YR, value of 5 through 7 dry, 3 through 5 moist, and chroma of 3 or 4. It is very fine sandy loam, silt loam, or loam. It has very fine to medium subangular blocky structure. Pebbles range from 0 to 15 percent and cobbles from 0 to 5 percent.
The 2BC horizon has hue of 10YR or 2.5Y, value of 6 or 8 dry, 5 or 6 moist, and chroma of 3 or 4. It is sandy loam, fine sandy loam, or loamy sand. Pebbles range from 5 to 10 percent.
The 2C horizon has hue of 10YR, 5Y, or 2.5Y, value of 5 through 8 dry, 3 through 6 moist, and chroma of 2 through 4. It is loamy sand, sand, or gravelly loamy sand. It is 10 to 35 percent pebbles and 0 to 10 percent cobbles. This horizon has common fine or medium mottles in some pedons.
COMPETING SERIES: There are no competing series. Soils in similar families are the Inkler, Merkel, Orwig, and Thout series. Inkler, Merkel, and Thout soils are loamy-skeletal. Orwig soils lack a 7 to 14 inch thick mantle of volcanic ash.
GEOGRAPHIC SETTING: Scrabblers soils are on outwash terraces and terrace escarpments at elevations of 2,200 to 4,500 feet. Slopes are smooth, rolling, or undulating and range from 0 to 65 percent. The soils formed in outwash derived mainly from weathered granitic rock and a mantle of volcanic ash and loess. The average annual temperature ranges from 42 degrees to 44 degrees F; the average annual precipitation ranges from 18 to 35 inches; and the frost-free season is 90 to 120 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bonner, Kegel, Kiehl, Manley, Martella, Mobate, Moscow, Newbell and the competing Merkel soils. Bonner soils are coarse-loamy over sandy or sandy-skeletal. Kegel soils have a mollic epipedon. Kiehl soils are sandy-skeletal. Manley soils are medial over loamy-skeletal and are cryic. Martella soils are fine-silty and have an argillic horizon. Merkel and Newbell soils are loamy-skeletal. Mobate soils are loamy-skeletal and are 10 to 20 inches deep. Moscow soils are coarse-loamy and are 20 to 40 inches deep.
DRAINAGE AND PERMEABILITY: Well drained; slow to very rapid runoff; moderate permeability in the subsoil and rapid permeability in the substratum.
USE AND VEGETATION: Used for grazable woodland, wildlife habitation, watershed, homesites, and recreation. Overstory vegetation is lodgepole pine, western larch, ponderosa pine, Douglas-fir, and grand fir. Understory is kinnikinnick, pachystima, strawberry, pinegrass, mallow ninebark, queencup beadlily, longtube twinflower, and common snowberry.
DISTRIBUTION AND EXTENT: Northeastern Washington on or adjacent to areas with granitic bedrock. The series is moderate in extent.
MLRA OFFICE RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Stevens County, Washington, 1978.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
ochric epipedon - from 0 to 6 inches
cambic horizon - from 6 to 19 inches
andic feature from 0.5 to 11 inches
Classification revised 7/04 from Andic Dystroxerepts to Andic Haploxerepts based on supporting lab data.
ADDITIONAL DATA: Laboratory data available for soil survey sample numbers S01WA063009 and S02WA063003 Spokane County, Washington; NSSL, Lincoln, NE