LOCATION HOOD OR+WAEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Ultic Haploxeralfs
TYPICAL PEDON: Hood loam, cultivated. (Colors are for moist soil unless otherwise noted.)
Ap1--0 to 3 inches; very dark grayish brown (10YR 3/2) loam, grayish brown (10YR 5/2) dry; weak fine granular structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine roots; many very fine irregular pores; few, fine (1-2 mm) reddish brown and black concretions; moderately acid (pH 5.7); abrupt smooth boundary. (3 to 9 inches thick)
Ap2--3 to 6 inches; dark brown (10YR 3/3) loam, brown (10YR 5/3) dry; weak thick platy parting to weak fine granular structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine roots; many very fine tubular pores; few fine (1 to 2 mm) reddish brown and black concretions; moderately acid (pH 5.8); abrupt smooth boundary. (0 to 6 inches thick)
BA--6 to 16 inches; brown (10YR 4/3) loam, pale brown (10YR 6/3) dry; weak coarse subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine roots; many very fine tubular pores; few reddish brown and black concretions; thin coatings of clean sand grains on peds; slightly acid (pH 6.2); gradual smooth boundary. (0 to 10 inches thick)
Bt1--16 to 27 inches; brown (10YR 4/3) loam, pale brown (10YR 6/3) dry; weak coarse prismatic parting to moderate medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine roots; many very fine tubular pores; faint clay films in some pores; some clean sand grains on faces of peds; slightly acid (pH 6.2); clear smooth boundary. (0 to 15 inches thick)
Bt2--27 to 38 inches; brown (10YR 4/3) loam, yellowish brown (10YR 5/4) dry; weak coarse prismatic parting to moderate medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; common very fine roots; many very fine tubular pores; common faint clay films on faces of peds and in pores; common clean sand grains on faces of prisms; moderately acid (pH 6.0); clear smooth boundary. (8 to 15 inches thick)
Bt3--38 to 58 inches; brown (10YR 4/3) loam, yellowish brown (10YR 5/4) dry; weak medium prismatic parting to moderate medium subangular blocky structure; hard, firm, slightly brittle, slightly sticky and slightly plastic; few very fine roots; many very fine tubular pores; few faint clay films faces of on peds and thick in some pores; few black stains; few clean sand grains on prisms; moderately acid (pH 5.8); clear wavy boundary. (0 to 24 inches thick)
Bt4--58 to 73 inches; brown (10YR 4/3) loam, yellowish brown (10YR 5/4) dry; weak coarse prismatic and weak medium subangular blocky structure; hard, firm, slightly brittle, slightly sticky and slightly plastic; few very fine roots; many very fine tubular pores; few faint clay films on faces of peds and thick in some pores; few black stains; few clean sand grains on prisms; moderately acid (pH 5.8); clear wavy boundary. (0 to 15 inches thick)
BCt--73 to 98 inches; brown (10YR 4/3) loam, yellowish brown (10YR 5/4) dry; massive; slightly hard, friable, slightly sticky and slightly plastic; few very fine roots; many very fine pores; distinct clay films in some pores; few 1 to 8 mm black stains; few clean sand grains in places on vertical fractures; moderately acid (pH 5.8); clear smooth boundary. (0 to 30 inches thick)
C--98 to 108 inches; brown (10YR 4/3) very fine sandy loam, pale brown (10YR 6/3) dry; massive; soft, very friable, nonsticky and nonplastic; few roots; few very fine to medium pores; moderately acid (pH 5.9).
TYPE LOCATION: Hood River County, Oregon, 440 feet east and 430 feet north of south quarter-corner of the SW1/4 SW1/4 SE1/4 section 13, T.2N., R.10E.
RANGE IN CHARACTERISTICS: The soils are usually moist but are dry in the moisture control section for 60 to 75 consecutive days during the 4 month period following the summer solstice. The mean annual soil temperature is 48 to 53 degrees F. Depth to bedrock is greater than 60 inches. The solum ranges from 4 to 7 feet thick. The solum is slightly or moderately acid and lacks rock fragments.
The A horizon has value of 3 or 4 moist, 5 or 6 dry and chroma of 2 or 3 moist and dry. Texture is loam or silt loam.
The Bt horizon has value of 5 or 6 dry and chroma of 3 or 4 moist, 3 to 6 dry. Texture is loam or silt loam with 18 to 25 percent clay and 15 to 20 percent coarser than very fine sand.
The BCt horizon, when present, has color similar to the Bt horizon. Texture is loam or silt loam and 18 to 25 percent clay. In some pedons, clay percentage may range to less than 18 percent.
The C horizon, when present, is stratified loam, very fine sandy loam, and silt loam.
COMPETING SERIES: These are the
Beal,
Boardburn,
Boomer,
Casabonne,
Cherryhill,
Cle Elum,
Cohasset,
Crozier,
Dalig,
Fives,
Fong (T),
Fordcreek,
Gunn,
Latourell,
Lettia,
Norling,
Para (T),
Pishpishee (T),
Rosehaven,
Sanhedrin,
Tigit,
Varelum, Wildwohly (T), and
Wohly series.
Beal soils dry for 45 to 60 consecutive days following summer solstice; 30 to 40 inches to low chroma redox features
Boardburn soils 40 to 60 inches to paralithic contact (weathered andesite tuff); dry for 110 to 130 consecutive days following summer solstice
Boomer soils 40 to 80 inches to paralithic contact (weathered greenstone); dry for 105 to 130 consecutive days following summer solstice
Casabonne soils 40 to 60 inches to lithic contact (sandstone or shale); dry for 90 to 120 consecutive days following summer solstice
Cherryhill soils 40 to 60 inches to paralithic contact (tuffaceous sandstone)
Cle Elum soils 20 to 40 inches to paralithic contact (sandstone); dry for 75 to 90 consecutive days following summer solstice
Cohasset soils 40 to 80 inches to paralithic or lithic contact (andesitic breccia); dry for 120 to 150 consecutive days following summer solstice
Crozier soils 20 to 40 inches to paralithic contact (andesitic breccia); dry for 120 to 150 consecutive days following summer solstice
Dalig soils hue of 5YR or 7.5YR throughout; 20 to 50 percent paragravel and 0 to 20 percent gravel derived from basalt colluvium in lower part of argillic horizon (BCt)
Fives soils dry for 45 to 60 consecutive days following summer solstice
Fong soils 40 to 60 inches to paralithic contact (black schist); dry for 90 to 120 consecutive days following summer solstice
Fordcreek soils 40 to 60 inches to paralithic contact (granite); dry for 75 to 110 consecutive days following summer solstice
Gunn soils dry for 90 to 105 consecutive days following summer solstice
Latourell soils solum thickness of 30 to 50 inches; mean annual soil temperature of 54 to 56 degrees F.; 40 to 60 inches to 2C horizon with 25 to 60 percent rock fragments
Lettia soils dry for 45 to 60 consecutive days following summer solstice; argillic horizon with hue of 2.5YR to 7.5YR
Norling soils 20 to 40 inches to paralithic contact (metavolcanic rock); dry for 45 to 60 consecutive days following summer solstice
Para soils dry for 45 to 60 consecutive days following summer solstice; particle-size control section with 15 to 45 percent basalt parafragments, 5 to 20 percent basalt gravel, and 0 to 5 percent basalt cobbles of colluvial origin; argillic horizon with hue of 7.5YR or 5YR
Pishpishee soils dry for 80 to 100 consecutive days following summer solstice; particle-size control section with 10 to 30 percent rock fragments of metasedimentary colluvial origin
Rosehaven soils dry for 45 to 60 consecutive days following summer solstice; mean annual soil temperature of 52 to 57 degrees F.
Sanhedrin soils 40 to 60 inches to lithic contact (interbedded sandstone and siltstone); dry for 90 to 120 consecutive days following summer solstice
Tigit soils 20 to 40 inches to paralithic contact (weathered basalt); particle-size control section with 5 to 45 percent pararock fragments, 5 to 20 percent gravel, and 0 to 10 percent cobbles and stones of colluvial origin
Varelum soils 40 to 60 inches to paralithic contact (sandstone); particle-size control section with 20 to 35 percent clay
Wildwohly soils not able to compete series; not in OSD database
Wholy soils 20 to 40 inches to paralithic contact; dry for 90 to 120 consecutive days following summer solstice
GEOGRAPHIC SETTING: Hood soils are on dissected terraces and terrace escarpments. Elevation is 100 to 1,000 feet. Slopes are 0 to 65 percent. These soils formed in very deep silty or loamy lacustrine deposits. The mean annual precipitation is 30 to 45 inches. The mean annual temperature is typically 49 to 51 degrees F. but ranges to 46 degrees F. in Washington. The mean January temperature is about 33 degrees F. and the mean July temperature is about 67 degrees F. The frost-free (32 degrees F.) season is 115 to 180 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Wyeast and Van Horn soils. Wyeast soils have redox features and somewhat poorly drained and are on terraces. Van Horn soils have mollic epipedons and are on old dissected terraces.
DRAINAGE AND PERMEABILITY: Well-drained; slow to rapid runoff; and moderate permeability.
USE AND VEGETATION: These soils are used mainly for fruit tree production. Present vegetation is mainly Douglas-fir, ponderosa pine, Idaho fescue and related forbs and shrubs.
DISTRIBUTION AND EXTENT: Uplands of north-central Oregon and south-central Washington. MLRA 6. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Hood River, White Salmon River Area, Oregon-Washington, 1912.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon the zone from 0 to 16 inches
Argillic horizon the zone from 16 to 98 inches
Particle-size control section the zone from 16 to 36 inches.
The Hood soils were formerly classified as Gray Brown Podzolic soils.
ADDITIONAL DATA: Characterization data on 1 profile (S61Oreg-14-4) reported in Riverside Soil Survey Laboratory Report for soils sampled in Hood River County, Oregon, October, 1961.