IDENTIFIERS

  • Current Taxon Name (Soil Name): Holcomb
  • OSD
  • Series Extent
  • User Site ID: S1996OR043002
  • User Pedon ID: S1996OR043002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 97P0303
  • NCSS Pedon Lab Data NASIS Record ID - 68775
  • Print Date: 11/21/2024

    • 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: 44.5291939
  • Std. Longitude: -123.0461121
  • Datum: WGS84
  • Township: 12S
  • Range: 3W
  • Section: 15
  • PLSS Details: On a slightly convex to planar slope in a ryegrass field located in the SE1/4 NE1/4 SW1/4 NW1/4
  • Location Description: Tangent, Oregon 7.5 minute USGS quadrangle map.
  • State: Oregon
  • County: OR043—Linn
  • Non-MLRA Soil Survey Area: OR639—Linn County Area, Oregon

    • PEDON

  • Current Taxonomic Class: Fine, smectitic, mesic Argiaquic Xeric Argialbolls
  • Current Taxon Kind: taxadjunct
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Holcomb
  • PSC - 0 to 0 cm.
  • Classificaton Date - 6/15/2007
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Holcomb
  • Taxonomic Class - Fine, montmorillonitic, mesic Mollic Albaqualf
  • Taxon Kind - series
  • Classificaton Date - 1/12/1996
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: valley
  • Landform: terrace
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/12/1996 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    —

    —

    83

    —

    1125

    —

    —

    12

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silt loam; moderate fine and medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 21.0 very fine and fine roots; 21.0 very fine tubular pores; fragments; clear smooth boundary. Lab sample # 97P01925. Common very fine distinct brown (10YR 4/3) and dark yellowish brown (10YR 4/4) stains along root channels and on ped faces.
    A—20 to 41 centimeters (7.9 to 16.1 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silt loam; moderate fine and medium subangular blocky structure; hard, firm, slightly sticky, slightly plastic; 3.0 fine roots; 21.0 very fine tubular pores; 1 percent fine black (10YR 2/1) dark nodules and 1 percent fine dark reddish brown (2.5YR 3/4) dark nodules and 3 percent fine brown (10YR 4/3) masses of oxidized iron and 3 percent fine dark yellowish brown (10YR 4/4) masses of oxidized iron; fragments; clear wavy boundary. Lab sample # 97P01926
    E—41 to 56 centimeters (16.1 to 22.0 inches); dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; silty clay loam; moderate fine and medium subangular blocky structure; slightly hard, firm, slightly sticky, slightly plastic; 3.0 very fine and fine roots; 3.0 very fine and fine tubular pores; 3 percent fine and medium black (10YR 2/1) dark nodules and 3 percent fine and medium dark reddish brown (2.5YR 3/3) dark nodules and 3 percent fine brown (10YR 4/3) masses of oxidized iron and 3 percent fine dark yellowish brown (10YR 4/4) masses of oxidized iron; fragments; clear smooth boundary. Lab sample # 97P01927
    2Btg1—56 to 74 centimeters (22.0 to 29.1 inches); grayish brown (2.5Y 5/2), light brownish gray (2.5Y 6/2), dry; silty clay; strong medium and coarse subangular blocky parts to weak medium prismatic structure; very hard, very firm, moderately sticky, moderately plastic; 0.5 fine roots; 0.5 very fine tubular pores; 10 percent prominent very dark grayish brown (10YR 3/2), moist, clay films in root channels and/or pores and 75 percent distinct very dark grayish brown (10YR 3/2), moist, clay films on faces of peds; 3 percent fine black (10YR 2/1) dark nodules and 3 percent fine reddish brown (2.5YR 5/3) dark nodules and 21 percent fine yellow (10YR 7/6) masses of oxidized iron and 21 percent fine yellow (10YR 7/8) masses of oxidized iron; fragments; gradual smooth boundary. Lab sample # 97P01928
    2Btg2—74 to 102 centimeters (29.1 to 40.2 inches); olive gray (5Y 4/2), light olive gray (5Y 6/2), dry; silty clay; weak platy structure; hard, firm, moderately sticky, moderately plastic; 0.5 very fine discontinuous tubular pores; 30 percent distinct grayish brown (10YR 5/2), moist, clay films on faces of peds and in pores; 21 percent fine yellow (10YR 7/6) masses of oxidized iron and 21 percent fine yellow (10YR 7/8) masses of oxidized iron; fragments; diffuse smooth boundary. Lab sample # 97P01929. Few pieces of charcoal (1 to 3 inches long).
    2BCtg—102 to 160 centimeters (40.2 to 63.0 inches); olive (5Y 5/3), pale olive (5Y 6/3), dry; silty clay; moderate medium and coarse subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 3.0 very fine tubular pores; 30 percent prominent grayish brown (10YR 5/2), moist, clay films on faces of peds and in pores and 75 percent distinct grayish brown (10YR 5/2), moist, clay films on faces of peds and in pores; 21 percent fine and medium yellow (10YR 7/6) masses of oxidized iron and 21 percent fine and medium yellow (10YR 7/8) masses of oxidized iron; fragments; diffuse smooth boundary. Lab sample # 97P01930
    3C—160 to 254 centimeters (63.0 to 100.0 inches); olive (5Y 5/3), pale olive (5Y 6/3), dry; silty clay; massive; hard, firm, moderately sticky, moderately plastic; 0.5 very fine discontinuous tubular pores; 30 percent prominent grayish brown (10YR 5/2), moist, clay films on faces of peds and in pores and 75 percent distinct grayish brown (10YR 5/2), moist, clay films on faces of peds and in pores; 21 percent fine and medium yellow (10YR 7/6) masses of oxidized iron and 21 percent fine and medium yellow (10YR 7/8) masses of oxidized iron; fragments. Lab sample # 97P01931