LOCATION NAXING WA
Established Series
Rev. JPE/RJE/TLA/RWL
09/2019
NAXING SERIES
Landscape--mountains
Landform--mountain slopes, ridges
Slope--0 to 70 percent
Parent material--colluvium and residuum derived from basalt mixed with volcanic ash and loess in the upper part
Mean annual precipitation--about 1100 mm
Mean annual air temperature--about 5 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--cryic
Soil moisture subclass--typic
TAXONOMIC CLASS: Ashy-skeletal over loamy-skeletal, mixed over isotic Humic Xeric Vitricryands
TYPICAL PEDON: Naxing stony loam, forested (All textures are apparent field textures.)
Oi--0 to 5 cm; slightly decomposed needles and twigs; 3-mm-thick intermittent ash layer in lower part; abrupt smooth boundary
A1--5 to 15 cm; stony ashy loam, brown (10YR 4/3) dry, very dark brown (10YR 2/2) moist; weak fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; few medium and coarse and many fine roots; many fine and medium irregular pores; 15 percent gravel, 5 percent cobbles, and 5 percent stones; NaF pH 10.5; moderately acid (pH 5.7); gradual wavy boundary
A2--15 to 46 cm; gravelly ashy loam, dark yellowish brown (10YR 4/4) dry, very dark grayish brown (10YR 3/2) moist; weak fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; few coarse, common medium, and many very fine roots; many fine and medium irregular pores; 15 percent gravel and 5 percent cobbles; NaF pH 10.5; moderately acid (pH 5.9); gradual wavy boundary
Bw1--46 to 97 cm; extremely cobbly ashy sandy loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4) moist; weak fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; few coarse and common medium and very fine roots; many fine and medium irregular pores; 40 percent gravel and 35 percent cobbles; NaF pH 10.0; moderately acid (pH 6.0); gradual wavy boundary
2Bw2--97 to 145 cm; extremely cobbly sandy loam, yellowish brown (10YR 5/4) dry, dark brown (10YR 3/3) moist; weak fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; few medium and common fine and very fine roots; many fine and medium irregular pores; 45 percent gravel and 30 percent cobbles; NaF pH 8.3; slightly acid (pH 6.2); clear wavy boundary
2Bw3--145 to 150 cm; extremely cobbly sandy loam, yellowish brown (10YR 5/4) dry, dark brown (10YR 3/3) moist; weak fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; few very fine and fine roots; many fine and medium irregular pores; 45 percent gravel, 30 percent cobbles, and 5 percent stones; NaF pH 8.3; slightly acid (pH 6.2)
TYPE LOCATION: Kittitas County, Washington, about 29 km northeast of Ellensburg; about 290 m west and 180 m north of southeast corner of section 6, T. 20 N., R. 20 E.; Colockum Pass, Washington, U.S. Geological Survey quadrangle; latitude 47 degrees, 15 minutes, 0 seconds north and longitude 120 degrees, 22 minutes, 1 second west
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--4 to 7 degrees C
Soil moisture--usually moist, but dry 45 to 60 consecutive days following summer solstice
Andic soil material--61 to 100 cm thick or more; estimated moist bulk density of 0.85 to 1.10 g/cm3, volcanic glass content of 10 to 30 percent, acid oxalate aluminum plus one-half iron of 1 to 2 percent, and 15-bar water retention of 5 to 12 percent; 40 to 75 percent angular basalt gravel and cobbles
Thickness of umbric epipedon--25 to 89 cm
Oi horizon
Thickness--3 to 8 cm
A horizon
Hue--7.5YR, 10YR
Value--4 or 5 dry, 2 or 3 moist
Chroma--2 or 3 moist, 2 to 5 dry
Texture--very gravelly ashy sandy loam, gravelly ashy sandy loam, stony ashy loam, ashy loam, gravelly ashy loam
Reaction--5.1 to 6.5
Combined thickness--25 to 48 cm
An AB horizon is in some pedons.
Bw horizon
Hue--7.5YR, 10YR
Value--3 or 4 moist, 5 to 7 dry
Chroma--3 to 6 dry or moist
Texture--very cobbly ashy sandy loam, gravelly ashy loam, very gravelly ashy sandy loam, very gravelly ashy loam, extremely cobbly ashy sandy loam, extremely cobbly ashy loam, very cobbly ashy loam
Reaction--5.1 to 7.3
Thickness--41 to 64 cm
2Bw horizon
Hue--7.5YR, 10YR
Value--3 or 4 moist, 4 or 5 dry
Chroma--3 to 6 moist, 4 to 6 dry
Texture--extremely gravelly loam, very gravelly sandy loam, extremely cobbly sandy loam, extremely gravelly sandy loam, extremely cobbly loam, very cobbly loam, very cobbly sandy loam
Reaction--5.1 to 7.3
COMPETING SERIES: None
Soils that have similar classification
*
Bagmont--glassy mineralogy; 50 to 100 cm (moderately deep) to a paralithic contact (schist)
*
Pird--amorphic mineralogy; 5 to 30 percent glass and 2 to 3 percent acid oxalate Al plus 1/2
Fe in particle-size control section; no loamy-skeletal discontinuity within a depth of 100 cm
*
Yawhee--glassy mineralogy; mollic epipedon 25 to 48 cm thick; buried argillic horizon within 100 cm of mineral soil surface; estimated 60 to 70 percent glass in ash mantle
GEOGRAPHIC SETTING:
Elevation--1400 to 2125 m
Climate--cool, moderately dry summers; cold, moist winters; snowpack in December through April
Mean annual precipitation--typically 1000 to 1400 mm, but ranges to 560 mm in areas recognized as a dry phase
Mean January air temperature--about -6 degrees C
Mean July air temperature--about 16 degrees C
Mean annual air temperature--about 4 to 6 degrees C
Frost-free season--30 to 75 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Darland--mollic epipedon 51 to 109 cm thick; on south-facing mountainsides and ridges
Saydab--on smooth mountain summits, ridges, and side slopes
Snowplow--ashy particle-size class
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--high
USE AND VEGETATION:
Use--timber production, recreation, wildlife habitat, watershed
Vegetation--Engelmann spruce, subalpine fir, western larch, lodgepole pine, Douglas-fir, elk sedge, pinegrass, Jacob's ladder, lupine, dwarf huckleberry
DISTRIBUTION AND EXTENT: East slopes of Cascade Mountains in Chelan, Kittitas, and Yakima Counties, Washington; MLRA 3; moderate extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Kittitas County, Washington; 1979
REMARKS:
Diagnostic horizons and other features recognized in this pedon
*Umbric epipedon--zone from 5 to 46 cm
*Cambic horizon--zone from 46 to 150 cm
*Andic soil properties--zone from 5 to 97 cm (estimated)
*Particle-size control section--zone from 5 to 107 cm; zone from 5 to 97 cm qualifies as ashy-skeletal; zone from 97 to 107 cm qualifies as loamy-skeletal
National Cooperative Soil Survey
U.S.A.