LOCATION GODOWA OR
Tentative Series
Rev. CEG
01/2025
GODOWA SERIES
Landscape--Intermontane Basin
Landform--flood-plain steps on valley floors, terraces
Slope--0 to 2 percent
Parent material--sandy alluvium derived from coarse, pumiceous volcanic ash and pumiceous tephra, and silty alluvium derived from diatomaceous sediments
Mean annual precipitation--about 320 mm
Mean annual air temperature--about 5.6 degrees C
Depth class--very deep
Drainage class--somewhat poorly drained
Soil moisture regime--xeric
Soil temperature regime--frigid
Soil moisture subclass--aquic
TAXONOMIC CLASS: Ashy, glassy, nonacid, frigid Vitrandic Xerofluvents
TYPICAL PEDON: Godowa ashy loamy coarse sand - irrigated pasture, on a 0.5 percent slope at 1319 m elevation.
Ap--0 to 13 cm; ashy loamy coarse sand, gray (10YR 6/1) dry, very dark grayish brown (10YR 3/2) moist; weak fine granular structure; soft, very friable, nonsticky and nonplastic; many very fine roots; few fine dendritic tubular and many very fine interstitial pores; neutral (pH 7.0); clear wavy boundary
AC1--13 to 28 cm; ashy loamy coarse sand, gray (10YR 6/1) dry, very dark grayish brown (10YR 3/2) moist; massive; soft, very friable, nonsticky and nonplastic; common very fine roots; few fine dendritic tubular and many very fine interstitial pores; neutral (pH 7.2); gradual wavy boundary
AC2--28 to 53 cm; ashy loamy coarse sand, light gray (10YR 7/1) and gray (10YR 6/1) dry, very dark grayish brown (10YR 3/2) moist; massive; soft, very friable, nonsticky and nonplastic; common very fine roots; few fine dendritic tubular and many very fine interstitial pores; slightly alkaline (pH 7.7); gradual wavy boundary
Cg1--53 to 74 cm; ashy loamy coarse sand, gray (10YR 6/1) dry, dark grayish brown (10YR 4/2) moist; massive; soft, very friable, nonsticky and nonplastic; common very fine roots; many very fine interstitial pores; 4 percent fine and medium prominent irregular reddish brown (5YR 4/4), moist, iron-manganese masses with diffuse boundaries in matrix; slightly alkaline (pH 7.7); abrupt wavy boundary
Cg2--74 to 79 cm; ashy diatomaceous silt, light gray (10YR 7/1) dry, 98 percent light brownish gray (2.5Y 6/2) and 2 percent gray (2.5Y 5/1) moist; platy structure; slightly hard, firm, slightly sticky and slightly plastic; few very fine roots; many very fine dendritic tubular pores; 2 percent fine and medium distinct irregular dark yellowish brown (10YR 4/4), moist, iron-manganese masses with diffuse boundaries in matrix; slightly alkaline (pH 7.6); abrupt wavy boundary
Cg3--79 to 163 cm; ashy coarse sand, light gray (10YR 7/1) and gray (10YR 6/1) dry, light gray (10YR 7/2) and gray (10YR 5/1) moist; massive; soft, very friable, nonsticky and nonplastic; few very fine roots; many very fine interstitial pores; 3 percent fine and medium prominent irregular light olive brown (2.5Y 5/6), moist, iron-manganese masses with diffuse boundaries in matrix; neutral (pH 7.0)
TYPE LOCATION: Klamath County, Oregon; 3 miles north of the community of Beatty, Oregon; Beatty, Oregon USGS quadrangle; about 9 m south and 402 m east of the northwest corner of section 3, T. 36 S., R. 12 E.; latitude 42.4852104 degrees north, longitude 121.2857742 west, datum WGS84 (coordinates determined from legal description given soil survey manuscript).
RANGE IN CHARACTERISTICS:
Soil Temperature: frigid regime
Mean annual soil temperature-- 3.0 to 8.0 degrees C
Mean summer soil temperature-- 7.0 to 12.0 degrees C
Mean winter soil temperature-- 0.0 to 6.0 degrees C
Moisture control section--30 to 90 cm; xeric regime, bordering on aquic; dry in all parts for more than 45 consecutive days following the summer solstice; seasonally high water table (endosaturation) in the lower part of the control section between February and May has an upper limit between 75 and 150 cm below the surface in normal years
Rock fragments--fine (2 to 4 mm) pumice paragravel; volcanic rock gravel
Depth to redox concentrations--50 to 100 cm
Depth to aquic conditions--50 to 100 cm
Particle-size control section
*Clay content--0 to 12 percent (weighted average)
*Pumice rock fragment content--0 to 14 percent
Estimated andic properties, all mineral horizons:
*Ammonium oxalate extractable Al plus 1/2 Fe--0.05 to 0.2 percent
*Medium to very coarse sand in the .02 to 2.0 mm fraction--greater than 50 percent
*P-retention--3 to 20 percent
*Volcanic glass content--30 to 70 percent glass and glass-coated aggregate
*1/3-bar bulk density--0.75 to 1.10 g/cm3
*1500 kPa water (air-dried samples)--0 to 25 percent
Ap horizon (or A horizon, in some pedons)
Value--2 or 3 moist, 4 to 6 dry
Chroma--1 or 2, moist or dry
Fine-earth texture--ashy loamy coarse sand, ashy loamy sand
Total rock and pararock content--0 to 14 percent
Paragravel content--0 to 14 percent
Gravel content--0 to 2 percent
Reaction--neutral to strongly alkaline (pH 6.6 to 9.0)
Thickness--12 to 50 cm
AC horizons
Value--3 moist, 4 to 6 dry
Chroma--1 or 2, moist or dry
Fine-earth texture--ashy coarse sand, ashy loamy coarse sand, ashy loamy sand
Total rock and pararock content--0 to 14 percent
Paragravel content--0 to 14 percent
Gravel content--0 to 2 percent
Reaction--neutral or slightly alkaline (pH 6.6 to 7.8)
Thickness--10 to 80 cm
Cg horizons
Hue--10YR or 2.5Y moist or dry
Value--4 to 7 moist, 6 to 8 dry
Chroma--1 or 2, moist or dry
Fine-earth texture--ashy coarse sand, ashy loamy coarse sand, ashy loamy sand, ashy diatomaceous silt, ashy diatomaceous silt loam
Total rock and pararock content--0 to 14 percent
Paragravel content--0 to 14 percent
Gravel content--0 to 2 percent
Reaction--neutral or slightly alkaline (pH 6.6 to 7.8)
COMPETING SERIES:
No competing series
GEOGRAPHIC SETTING:
Elevation--1310 to 1345 m
Climate--cold, moist winters and cool, dry summers
Mean annual air temperature-- 4.4 to 7.2 degrees C
Mean annual precipitation--300 to 460 mm
Frost-free period--50 to 70 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Klamath--on flood plains; seasonal high water table and redoximorphic features at the soil surface (poorly drained); silt loam or silty clay loam textures
Ontko--on flood plains; seasonal high water table and redoximorphic features at the soil surface (poorly drained); clay loam, ashy sandy clay loam and sandy loam textures
Sycan--on stream terraces; upper depth of seasonal high water table and redoximorphic features is 100 cm (moderately well drained)
Yonna--on flood plain steps; interbedded loamy and sandy textures
DRAINAGE AND PERMEABILITY:
Drainage class--somewhat poorly drained
Saturation in normal years--endosaturation, below a depth of 75 to 150 cm, in February through May; below a depth of 100 cm in June through January
Flooding--occasional, brief flooding, March through May
Ponding--none
Saturated hydraulic conductivity (Ksat)--high to very high throughout, except for diatomaceous silty layers, which are moderately low to moderately high
USE AND VEGETATION:
Use--irrigated pasture, alfalfa hay, cereal hay, livestock grazing, and wildlife
Vegetation--Sandberg bluegrass, meadow barley, Kentucky bluegrass, mat muhly, sedges, Baltic rush
DISTRIBUTION AND EXTENT: Cascade Mountains, Eastern Slope, Oregon; MLRA 6; small extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED:
Klamath County Oregon, 2018
Origin of the name--Godowa Springs Road, in Klamath County, Oregon
REMARKS:
Diagnostic horizons and features in this pedon
*Ochric epipedon
*Volcanic glass--throughout (zone from 0 to 163 cm)
*Aquic conditions--Cg horizons
*Redoximorphic concentrations--Cg1 horizon
*Redoximorphic depletions--Cg horizons (depleted matrix)
*Particle-size control section--zone from 25 to 100 cm
*Pumice and ash are originally from Mt. Mazama, deposited during a subsequent outburst flood
NASIS Site and Pedon ID 1977OR035012
ADDITIONAL DATA:
Kellogg Soil Survey Laboratory (KSSL) characterization--19N0330 (NASIS Site and pedon ID S2018OR035003)
National Cooperative Soil Survey
U.S.A.