IDENTIFIERS

  • Current Taxon Name (Soil Name): Dupo
  • OSD
  • Series Extent
  • User Site ID: 1977IL157013
  • User Pedon ID: 1977IL157013
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 77IL157013
  • NCSS Pedon Lab Data NASIS Record ID - 20890
  • Print Date: 5/20/2024

    • 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: 37.9841786
  • Std. Longitude: -89.9627204
  • Datum: WGS84
  • Township: 6S
  • Range: 8W
  • Section: 27
  • PLSS Details: 1650 feet south and 85 feet west of northeast corner
  • State: Illinois
  • County: IL157—Randolph
  • Non-MLRA Soil Survey Area: IL157—Randolph County, Illinois
  • 7.5 Minute USGS Quad: 37089-H8—Kaskaskia, Illinois

    • PEDON

  • Describers Name: CCM
  • Current Taxonomic Class: Coarse-silty over clayey, mixed over smectitic, superactive, nonacid, mesic Aquic Udifluvents
  • Current Taxon Kind: taxadjunct
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Pedon #: 13
  • Correlated Information:
  • Soil Name - Dupo
  • PSC - 25 to 100 cm.
  • Classificaton Date - 7/10/2009
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Titus
  • Classificaton Date - 8/1/1977
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1977 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
    • 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

    —

    —

    116

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    Ap—0 to 23 centimeters (0.0 to 9.1 inches); dark brown (10YR 3/3) silt loam; moderate fine granular, and moderate medium subangular blocky structure; friable; very dark grayish brown (10YR 3/2), moist, organic stains on all faces of peds; fragments; moderately alkaline, pH 7.9; abrupt smooth boundary. Lab sample # IL25219
    A1—23 to 33 centimeters (9.1 to 13.0 inches); very dark grayish brown (10YR 3/2) silt loam; weak medium subangular blocky structure; friable; fragments; slightly alkaline, pH 7.8; clear smooth boundary. Lab sample # IL25220
    B1—33 to 56 centimeters (13.0 to 22.0 inches); very dark grayish brown (10YR 3/2) silty clay loam; moderate medium subangular blocky structure; friable; very dark gray (10YR 3/1), moist, organic stains on all faces of peds; fragments; slightly alkaline, pH 7.6; clear smooth boundary. Lab sample # IL25221
    B21—56 to 66 centimeters (22.0 to 26.0 inches); very dark brown (10YR 2/2) silty clay loam; moderate medium subangular blocky structure; friable; black (10YR 2/1), moist, organic stains on all faces of peds; fragments; slightly alkaline, pH 7.6; clear smooth boundary. Lab sample # IL25222
    B22—66 to 84 centimeters (26.0 to 33.1 inches); 70 percent very dark gray (10YR 3/1) and 30 percent reddish brown (5YR 5/3) silty clay loam; moderate medium prismatic structure; firm; very dark gray (10YR 3/1), moist, organic stains on all faces of peds; fragments; slightly alkaline, pH 7.4; clear smooth boundary. Lab sample # IL25223
    B3—84 to 130 centimeters (33.1 to 51.2 inches); dark gray (5Y 4/1) silty clay; 10 percent light olive brown (2.5Y 5/6) fine distinct mottles; weak coarse prismatic structure; very firm; slickensides (pedogenic); fragments; slightly alkaline, pH 7.8; gradual smooth boundary.
    C1—130 to 160 centimeters (51.2 to 63.0 inches); gray (5Y 5/1) and olive gray (5Y 5/2) silty clay; 10 percent light olive brown (2.5Y 5/4) fine distinct mottles; massive; very firm; slickensides (pedogenic); fragments; slightly alkaline, pH 7.6.