IDENTIFIERS

  • Current Taxon Name (Soil Name): Ausmus
  • OSD
  • Series Extent
  • User Site ID: S1993OR025001
  • User Pedon ID: S1993OR025001
  • Vegetation Plot ID: S1993OR025001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 93P0788
  • NCSS Pedon Lab Data NASIS Record ID - 66131
  • Print Date: 4/29/2025

    • LOCATION

  • Location In Web Soil Survey
  • AOI is roughly a square mile and pedon is marked in the center.
  • Location in SoilWeb
  • Location in Google Maps
  • Std. Latitude: 43.2623787
  • Std. Longitude: -118.5910339
  • Datum: WGS84
  • Township: 26S
  • Range: 33E
  • Section: 36
  • PLSS Details: About 2110 feet west and 40 feet north from the southeast corner
  • State: Oregon
  • County: OR025—Harney
  • MLRA: 23—Malheur High Plateau
  • Non-MLRA Soil Survey Area: OR628—Harney County Area, Oregon
  • 7.5 Minute USGS Quad: 43118-D5—Crane, Oregon

    • PEDON

  • Describers Name: T. Thorson, M. Keller, and R. Burt
  • Current Taxonomic Class: Fine, montmorillonitic, frigid Aquic Natrargids
  • Current Taxon Kind: series
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Ausmus
  • Taxonomic Class - Fine, montmorillonitic, frigid Aquic Natrargids
  • PSC - 16 to 31 cm.
  • Classificaton Date - 8/17/1993
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: barrier flat
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/17/1993 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    CHVI8

    POSE

    SAVE4

    SIHY

    Chrysothamnus viscidiflorus

    Poa secunda

    Sarcobatus vermiculatus

    Sitanion hystrix

    yellow rabbitbrush

    Sandberg bluegrass

    greasewood

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    —

    —

    —

    —

    —

    —

    —

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    natric horizon

    argillic horizon

    0—16

    16—24

    16—31

    —-

    —-

    —-
    Setting and Climate
    Slope Slope Length USLE Upslope Length Elev. Corr. Elev Aspect MAP REAP FFD MAAT MSAT MWAT MAST MSST MWST MFFP PE Index Climate Station ID Climate Station Name Climate Station Type
    % m degrees mm mm C mm

    1

    —

    —

    1231

    —

    229

    —

    —

    8

    17

    -2

    9

    18

    0

    —

    —

    37103

    —

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    A1—0 to 7 centimeters (0.0 to 2.8 inches); light brownish gray (10YR 6/2) interior, dark brown (10YR 3/3) interior, moist; silt loam; weak very fine granular structure; soft, very friable, slightly sticky, slightly plastic; 21.0 very fine roots; 21.0 very fine interstitial pores; fragments; slight effervescence; strongly alkaline, pH 9.0, thymol-blue; clear smooth boundary. Lab sample # 93P05455
    A2—7 to 16 centimeters (2.8 to 6.3 inches); light brownish gray (10YR 6/2) interior, dark brown (10YR 3/3) interior, moist; silt loam; moderate very fine platy structure; slightly hard, very friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots and 0.5 medium roots; 3.0 very fine interstitial pores; fragments; strongly alkaline, pH 8.8, thymol-blue; abrupt smooth boundary. Lab sample # 93P05456
    Btn—16 to 24 centimeters (6.3 to 9.4 inches); brown (10YR 5/3) interior, very dark grayish brown (10YR 3/2) interior, moist; clay; strong fine prismatic parts to strong fine angular blocky structure; very hard, very firm, very sticky, very plastic; 3.0 very fine and fine roots; 0.5 very fine tubular pores; 75 percent clay films on faces of peds; fragments; strongly alkaline, pH 8.5, thymol-blue; clear smooth boundary. Lab sample # 93P05457
    Btkn—24 to 31 centimeters (9.4 to 12.2 inches); pale yellow (2.5Y 7/3) interior, olive brown (2.5Y 4/3) interior, moist; silty clay loam; moderate fine subangular blocky structure; very hard, very firm, moderately sticky, moderately plastic; 0.5 very fine roots and 3.0 fine and medium roots; 3.0 very fine tubular pores; 30 percent clay films on faces of peds; fragments; violent effervescence; very strongly alkaline, pH 9.2, thymol-blue; clear smooth boundary. Lab sample # 93P05458
    Bk—31 to 54 centimeters (12.2 to 21.3 inches); pale yellow (2.5Y 7/4) interior, light olive brown (2.5Y 5/4) interior, moist; loam; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots and 3.0 fine and medium roots; 3.0 very fine tubular pores; 3 percent fine carbonate threads; fragments; violent effervescence; very strongly alkaline, pH 9.2, thymol-blue; gradual smooth boundary. Lab sample # 93P05459
    BCk—54 to 70 centimeters (21.3 to 27.6 inches); light yellowish brown (2.5Y 6/3) interior, olive brown (2.5Y 4/3) interior, moist; loam; 1 percent dark brown (10YR 3/3) fine faint mottles; moderate fine and medium subangular blocky structure; slightly hard, firm, slightly sticky, nonplastic; 0.5 fine roots; 3.0 very fine tubular pores; 10 percent distinct black (10YR 2/1) manganese or iron-manganese stains; 3 percent fine carbonate threads; fragments; strong effervescence; very strongly alkaline, pH 9.2, thymol-blue; clear smooth boundary. Lab sample # 93P05460
    Ck—70 to 115 centimeters (27.6 to 45.3 inches); light brownish gray (2.5Y 6/2) interior, dark grayish brown (2.5Y 4/2) interior, moist; loam; 3 percent brown (7.5YR 4/4) fine distinct mottles; massive; very hard, very firm, slightly sticky, nonplastic; 0.5 fine roots; 3.0 very fine tubular pores; 3 percent fine carbonate threads; fragments; strong effervescence; very strongly alkaline, pH 9.2, thymol-blue; clear smooth boundary. Lab sample # 93P05461
    C—115 to 152 centimeters (45.3 to 59.8 inches); light brownish gray (2.5Y 6/2) interior, dark grayish brown (2.5Y 4/2) interior, moist; loam; 3 percent brown (7.5YR 4/4) fine distinct mottles; massive; very hard, very firm, slightly sticky, nonplastic; 0.5 very fine tubular pores; 10 percent distinct black (10YR 2/1) manganese or iron-manganese stains; fragments; very strongly alkaline, pH 9.2, thymol-blue. Lab sample # 93P05462