IDENTIFIERS

  • Current Taxon Name (Soil Name): Lakoma
  • OSD
  • Series Extent
  • User Site ID: S1982SD085022
  • User Pedon ID: 82SD085022
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 83P0564
  • NCSS Pedon Lab Data NASIS Record ID - 52801
  • 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: 43.5163879
  • Std. Longitude: -99.5672226
  • Datum: WGS84
  • Township: 101N
  • Range: 73W
  • Section: 27
  • PLSS Details: 2,195 feet W and 135 feet N of the SE corner
  • State: South Dakota
  • County: SD085—Lyman

    • PEDON

  • Describers Name: Thomas Schumacher and Rod Krauss
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 22
  • Sampled As Information:
  • Soil Name - Lakoma
  • Taxonomic Class - Fine, montmorillonitic Vertic Ustochrepts
  • Classificaton Date - 9/1/1982
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: plain
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1982 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

    7

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    —

    —

    —

    45

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    1A—0 to 13 centimeters (0.0 to 5.1 inches); dark grayish brown (2.5Y 4/2) interior, grayish brown (2.5Y 5/2) interior, dry; silty clay; weak fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; fragments; violent effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary. Lab sample # 83P02690
    1Bw1—13 to 25 centimeters (5.1 to 9.8 inches); dark grayish brown (2.5Y 4/2) interior, grayish brown (2.5Y 5/2) interior, dry; silty clay; weak medium prismatic, and weak fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; fragments; violent effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary. Lab sample # 83P02691
    1Bw2—25 to 43 centimeters (9.8 to 16.9 inches); olive brown (2.5Y 4/4) interior, grayish brown (2.5Y 5/2) interior, dry; silty clay; weak medium prismatic, and moderate fine subangular blocky structure; hard, friable, slightly sticky, slightly plastic; fragments; violent effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; gradual wavy boundary. Lab sample # 83P02692
    1C—43 to 64 centimeters (16.9 to 25.2 inches); olive brown (2.5Y 4/4) interior, light olive brown (2.5Y 5/4) interior, dry; shaly silty clay; moderate fine and medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; fragments; violent effervescence, by hcl, 1n; clear wavy boundary. Lab sample # 83P02693
    1Cr1—64 to 81 centimeters (25.2 to 31.9 inches); light olive brown (2.5Y 5/4) interior, pale yellow (2.5Y 7/4) interior, dry; Error; fragments; violent effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; abrupt wavy boundary. Lab sample # 83P02694. Many gypsum crystals along shale planes.
    1Cr2—81 to 152 centimeters (31.9 to 59.8 inches); light olive brown (2.5Y 5/4) interior, pale yellow (2.5Y 7/4) interior, dry; Error; fragments; violent effervescence, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog. Lab sample # 83P02695. Many medium and fine gypsum crystals along shale planes.