LOCATION VEERY OR
Tentative Series
IRD. AGG\MPR
02/2025
VEERY SERIES
Landscape--Eastern Cascade mountains
Landform--flats, flood plains
Slope--0 to 5 percent
Parent Material--volcanic ash over alluvium over outwash
Mean annual precipitation--430 mm
Mean annual air temperature--6 degrees C
Depth class--deep and very deep
Drainage class--very poorly drained
Soil moisture regime--aquic
Soil temperature regime--frigid
Soil moisture subclass--typic
TAXONOMIC CLASS: Ashy over loamy, amorphic over mixed, superactive, nonacid, frigid Typic Vitraquands
TYPICAL PEDON: Veery ashy fine sandy loam, dry meadow, on a 1 percent slope at an elevation of 1013 meters. (Colors are for dry soil unless otherwise noted.)
Oi--0 to 3 centimeters; slightly decomposed plant material; many very fine and fine roots throughout; strongly acid (pH 5.5); abrupt smooth boundary
A1--3 to 10 centimeters; ashy fine sandy loam, gray (10YR 5/1), black (10YR 2/1) moist; 5 percent field estimated clay; weak fine granular structure; soft, very friable, slightly sticky, slightly plastic; common very fine, few medium , and many fine roots; many fine irregular pores; neutral (pH 6.9); abrupt smooth boundary
A2--10 to 24 centimeters; ashy fine sandy loam, gray (10YR 5/1), very dark brown (10YR 2/2) moist; 5 percent field estimated clay; weak fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; few fine and very fine roots and common medium roots; many fine irregular pores; 5 percent strong brown (7.5YR 4/6), moist, masses of oxidized iron throughout; neutral (pH 7.0); clear smooth boundary
A3--24 to 43 centimeters; ashy fine sandy loam, gray (10YR 5/1), very dark brown (10YR 2/2) moist; 7 percent field estimated clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; few fine and medium roots; many fine irregular pores; 10 percent strong brown (7.5YR 5/6), moist, masses of oxidized iron; 2 percent gravel; neutral (pH 7.0); clear smooth boundary
2Bt1--43 to 82 centimeters; loam, grayish brown (10YR 5/2), dark grayish brown (10YR 4/2) moist, 22 percent field estimated clay; moderate fine prismatic structure; moderately hard, friable, moderately sticky, moderately plastic; few very fine,fine, and medium roots top of horizon; common fine interstitial pores; 2 percent clay films; 10 percent strong brown (7.5YR 4/6), moist, masses of oxidized iron and 20 percent dark brown (7.5YR 3/4), moist, masses of oxidized iron; 5 percent gravel; neutral (pH 7.1); clear smooth boundary
2Bt2--82 to 123 centimeters; loam, grayish brown (10YR 5/2), dark grayish brown (10YR 4/2) moist; 24 percent field estimated clay; strong fine prismatic structure; hard, very firm, moderately sticky, moderately plastic; few very fine roots; common fine interstitial pores; 10 percent clay films; 20 percent strong brown (7.5YR 4/6), moist, masses of oxidized iron; 10 percent gravel; neutral (pH 7.1); clear smooth boundary
3Bq--123 to 141 centimeters; stratified gravelly coarse sandy loam and gravelly sandy loam, very dark grayish brown (10YR 3/2) moist; 4 percent field estimated clay; massive; hard, firm, nonsticky, nonplastic; few fine interstitial pores; 2 percent gray (10YR 6/1), moist, masses of reduced iron and 40 percent dark reddish brown (5YR 3/3), moist, masses of oxidized iron; 30 percent durinodes; 25 percent gravel; neutral (pH 7.2); clear smooth boundary
3Bqm--141 to 150 centimeters; duripan; dark brown (7.5YR 3/3) moist; moderately cemented by silica; very hard, very firm, nonsticky, nonplastic; 20 percent gravel; neutral (pH 7.2)
TYPE LOCATION: Deschutes County, Oregon; latitude 44.3568570, longitude -121.6253670, datum WGS84 (coordinates determined with a GPS).
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--6 to 8 degrees C
Thickness of mollic epipedon--25 to 55 cm
Thickness of argillic horizon--40 to 85 cm
Depth to aquic conditions--10 to 20 cm
Depth to cemented horizon--100 to over 150 cm
Thickness of surface ash influenced layers--36 to 55 cm
Reaction--ph 6.1 to 7.3 (slightly acid to neutral)
Estimated properties of layers influenced by volcanic ash
*Ammonium oxalate extractable Al + Fe--1 to 2.5 percent
*0.02 to 2.0 mm fraction--50 to 85 percent
*Volcanic glass in the 0.02 to 2.0 mm fraction--50 to 70 percent
*P retention--60 to 80 percent
*1500 kPa water retention-less than 15 percent
*8Si + 2Fe (aox)--5 to 30 percent
*8Si - 2Fe (aox)--4 to 25 percent
Particle-size control section (weighted average):
*Clay content--5 to 18 percent
*Rock fragment content--0 to 10 percent
A horizons
*Value--2 or 3 moist, 4 or 5 dry
*Chroma--1 or 2
*Fine earth texture-- fine sandy loam, sandy loam
*Clay--2 to 10 percent
*Sand--55 to 85 percent
*Organic matter--1 to 5 percent
*Gravel--0 to 2 percent
*Reaction--ph 6.1 to 7.3 (slightly acid to neutral)
*Thickness--combined thickness of A horizons is 25 to 55 cm
2Bt horizons
*Value--2 or 3 moist, 4 to 6 dry
*Chroma--1 or 2
*Fine earth texture-- loam, clay loam, sandy clay loam
*Clay--10 to 30 percent
*Sand--25 to 60 percent
*Organic matter--0.5 to 1.5 percent
*Gravel--0 to 12 percent
*Reaction--ph 6.6 to 7.3 (neutral)
*Thickness--combined thickness of 2Bt horizons is 40 to 85 cm
3Bq horizon
*Value--3 to 5
*Chroma--2 to 6
*Fine earth texture--coarse sandy loam, sandy loam, loamy sand
*Clay--2 to 10 percent
*Sand--60 to 90 percent
*Organic matter--0.25 to 0.5 percent
*Gravel--15 to 35 percent
*Reaction--ph 6.6 to 7.3 (neutral)
*Thickness--thickness of 3Bq horizon is 15 to 40 cm
3Bqm horizon
*Hue--10YR, 7.5YR
*Value--3 to 6
*Chroma--2 to 8
*Gravel--15 to 35 percent
*Reaction--ph 6.6 to 7.3 (neutral)
*Thickness--thickness of 3Bqm horizon is 8 to 30 cm
COMPETING SERIES:
None
GEOGRAPHIC SETTING:
Elevation--960 to 1400 meters
Slope--0 to 5 percent
Climate--cool, wet winters and warm, dry summers
Mean annual precipitation--350 to 508 mm
Mean annual air temperature--5 to 7 degrees C
Frost-free period--60 to 90 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Omahaling--occurs on stream terraces; has ash influence throughout the particle size control section
Lundgren--occurs on outwash plains; has ash influence throughout the particle size control section
Wanoga--occurs on lava plains; has ash influence throughout the particle size control section
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage--very poorly drained
Saturation during normal years--seasonal saturation between 10 to 20 cm in March through May; below a depth of 100 cm in June through February
Flooding--rare, very brief
Ponding--none
Saturated hydraulic conductivity (Ksat)--high to very high in ash influenced horizons and the non-cemented outwash, moderately high in the argillic horizons, and moderately low to low in the cemented outwash material
USE AND VEGETATION:
Use--watershed, wildlife habitat
Vegetation--willow, sedges, rushes, Tufted hairgrass
DISTRIBUTION AND EXTENT:
Eastern slopes of the Cascade Mountains in central Oregon; MLRA 6; minor extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED:
Deschutes County, Deschutes National Forest, Oregon 2023
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
*Particle-size control section--3 to 103 cm
*Mollic epipedon--3 to 43 cm
*Andic soil properties--3 to 43 cm
*Aquic conditions--10 to 141 cm
*Argillic horizon--42 to 123
*Lithologic discontinuity--at 43 and 123 cm
*Durinodes--123 to 141 cm
*Duripan--141 to 150 cm
The volcanic ash deposit is from the eruption of Mt. Mazama (7.7 kya).
National Cooperative Soil Survey
U.S.A.