IDENTIFIERS

  • Current Taxon Name (Soil Name): Birkbeck
  • OSD
  • Series Extent
  • User Site ID: 1978IL103005
  • User Pedon ID: 1978IL103005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 78IL103005
  • NCSS Pedon Lab Data NASIS Record ID - 20970
  • Print Date: 4/27/2025

    • 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: 41.8380192
  • Std. Longitude: -89.5247331
  • Datum: WGS84
  • Township: 21N
  • Range: 8E
  • Section: 1
  • Location Description: 230FT of Wolvenne Rd & 120FT N of private drive
  • State: Illinois
  • County: IL103—Lee
  • MLRA: 108—Illinois and Iowa Deep Loess and Drift
  • Non-MLRA Soil Survey Area: IL103—Lee County, Illinois
  • 7.5 Minute USGS Quad: 41089-G5—Dixon West, Illinois

    • PEDON

  • Describers Name: RWS, SKN, SEZ
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Oxyaquic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - Birkbeck
  • PSC - 15 to 65 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - udic
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Birkbeck
  • Classificaton Date - 9/1/1977
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Peoria loess over calcareous loamy Wisconsinan glacial till
  • Landscape: till plain, upland
  • Landform: divide
  • Hill Slope Profile: shoulder
  • Runoff: low
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1977 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—15

    15—122

    —-

    —-
    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

    4

    —

    —

    226

    —

    225

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); brown (10YR 4/3), yellowish brown (10YR 5/4), dry; silt loam; moderate fine granular structure; friable; 0.6 medium roots between peds; fragments; neutral, pH 6.8; abrupt smooth boundary. Lab sample # IL25808
    B21t—15 to 25 centimeters (5.9 to 9.8 inches); yellowish brown (10YR 5/4) silty clay loam; 1 percent yellowish brown (10YR 5/6) fine faint mottles; moderate fine subangular blocky structure; friable; 0.6 medium roots between peds; prominent dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; fragments; neutral, pH 6.9; clear smooth boundary. Lab sample # IL25809. continuous - phpvsfiid 480420; continuous - phpvsfiid 480420
    B22t—25 to 41 centimeters (9.8 to 16.1 inches); yellowish brown (10YR 5/4) silty clay loam; 1 percent light brownish gray (10YR 6/2) fine faint mottles; moderate medium prismatic parts to moderate fine subangular blocky structure; friable; 0.6 medium roots between peds; 50 percent prominent dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; 1 percent prominent yellowish brown (10YR 5/8), moist, iron-manganese concretions in matrix; fragments; moderately acid, pH 6.0; clear smooth boundary. Lab sample # IL25810. continuous - phpvsfiid 480421; continuous - phpvsfiid 480421
    B23t—41 to 58 centimeters (16.1 to 22.8 inches); yellowish brown (10YR 5/4) silty clay loam; 1 percent strong brown (7.5YR 5/6) fine distinct and 10 percent grayish brown (10YR 5/2) medium faint mottles; moderate medium prismatic parts to moderate fine subangular blocky structure; friable; 0.6 medium roots between peds; 25 percent prominent dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds and 25 percent prominent light gray (10YR 7/2), dry, silt coats on all faces of peds; 1 percent prominent iron-manganese concretions in matrix; fragments; strongly acid, pH 5.1; clear smooth boundary. Lab sample # IL25811. discontinuous - phpvsfiid 480422; discontinuous - phpvsfiid 480423; discontinuous - phpvsfiid 480422; discontinuous - phpvsfiid 480423
    B24t—58 to 74 centimeters (22.8 to 29.1 inches); yellowish brown (10YR 5/4) silty clay loam; 1 percent grayish brown (10YR 5/2) fine faint mottles; weak medium prismatic parts to moderate fine subangular blocky structure; firm; 0.6 medium roots between peds; 10 percent prominent light gray (10YR 7/2), dry, silt coats on all faces of peds and 25 percent prominent dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; 1 percent prominent iron-manganese concretions in matrix; fragments; strongly acid, pH 5.1; clear smooth boundary. Lab sample # IL25812. patchy - phpvsfiid 480425; discontinuous - phpvsfiid 480424; patchy - phpvsfiid 480425; discontinuous - phpvsfiid 480424
    B25t—74 to 86 centimeters (29.1 to 33.9 inches); yellowish brown (10YR 5/4) silty clay loam, sand; 10 percent yellowish red (5YR 5/6) medium distinct and 10 percent grayish brown (10YR 5/2) medium distinct mottles; moderate medium prismatic parts to moderate medium subangular blocky structure; friable; 0.6 medium roots between peds; 50 percent prominent light gray (10YR 7/2), dry, silt coats on all faces of peds; 1 percent prominent iron-manganese concretions in matrix; fragments; moderately acid, pH 5.9; clear smooth boundary. Lab sample # IL25813. continuous - phpvsfiid 480426; continuous - phpvsfiid 480426
    IIB3t—86 to 122 centimeters (33.9 to 48.0 inches); brown (7.5YR 4/4) clay loam; 10 percent grayish brown (10YR 5/2) medium distinct mottles; weak medium subangular blocky structure; friable; 0.6 medium roots between peds; 25 percent prominent brown (7.5YR 4/2), moist, clay films on all faces of peds; 1 percent prominent iron-manganese concretions in matrix; 1 percent by volume rounded strongly coherent cemented mixed fragments; neutral, pH 7.1; clear smooth boundary. Lab sample # IL25814. discontinuous - phpvsfiid 480419; discontinuous - phpvsfiid 480419
    IIC—122 to 165 centimeters (48.0 to 65.0 inches); yellowish brown (10YR 5/4) clay loam; 1 percent strong brown (7.5YR 5/6) fine distinct mottles; structureless massive; firm; distinct dark brown (10YR 3/3), moist, organoargillans on surfaces along root channels; 25 percent by volume rounded strongly coherent cemented mixed fragments; strong effervescence, by hcl, unspecified; slightly alkaline, pH 7.6; clear smooth boundary. Lab sample # IL25815