IDENTIFIERS

  • Current Taxon Name (Soil Name): Courtois
  • OSD
  • Series Extent
  • User Site ID: 1993MO223012M
  • User Pedon ID: 1993MO223012
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9322312
  • 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: 37.3040581
  • Std. Longitude: -90.5469513
  • Datum: WGS84
  • Township: T30N
  • Range: R5E
  • Section: 6
  • PLSS Details: 4400 feet W and 500 feet N of the SE corner
  • Location Description: 4400 ft. west and 500 ft. north of the SE corner of sec. 6, T30N, R5E.
  • Map Unit: 73143—Courtois silt loam, 3 to 8 percent slopes18C—Courtois silt loam, 3 to 8 percent slopes
  • State: Missouri
  • County: MO223—Wayne
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO223—Wayne County, Missouri
  • 7.5 Minute USGS Quad: 37090-C5—Brunot, Missouri

    • PEDON

  • Describers Name: DH
  • Current Taxonomic Class: Fine, mixed, semiactive, mesic Aquic Paleudults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: within range of map unit
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Courtois
  • PSC - 18 to 68 cm.
  • Classificaton Date - 4/1/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Courtois
  • Taxon Kind - series
  • Classificaton Date - 8/25/1993
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 30 Cation Exc. to Clay x100


    • SITE

  • Parent Material: slope alluvium derived from igneous and sedimentary rock over residuum weathered from dolomite
  • Landscape: basin
  • Landform: basin-floor remnant
  • Runoff: high
  • Drainage Class: moderately well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/25/1993 (actual site observation date)
  • Air Photo ID: 2198-293
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—18

    18—203

    —-

    —-
    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

    6

    —

    —

    162

    —

    160

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap1—0 to 8 centimeters (0.0 to 3.1 inches); dark brown (10YR 3/3), reddish brown (5YR 5/4), dry; silty clay loam; moderate fine granular structure; friable; 6.0 very fine and fine roots; fragments; slightly acid, pH 6.4, hellige-truog; clear smooth boundary. Lab sample # MU013092
    Ap2—8 to 18 centimeters (3.1 to 7.1 inches); dark reddish brown (5YR 3/4), yellowish red (5YR 5/6), dry; silty clay loam; moderate fine subangular blocky structure; firm; 3.0 very fine and fine roots; fragments; slightly acid, pH 6.5, hellige-truog; clear smooth boundary. Lab sample # MU013093
    2Bt1—18 to 43 centimeters (7.1 to 16.9 inches); dark red (2.5YR 3/6) silty clay; strong fine and medium angular blocky structure; firm; 3.0 very fine roots; 35 percent distinct clay films on faces of peds; fragments; strongly acid, pH 5.4, hellige-truog; gradual wavy boundary. Lab sample # MU013094
    2Bt2—43 to 69 centimeters (16.9 to 27.2 inches); dark red (2.5YR 3/6) silty clay; 15 percent pale brown (10YR 6/3) medium distinct mottles; strong fine and medium angular blocky structure; firm; 3.0 very fine roots; 35 percent distinct clay films on faces of peds; 10 percent medium iron-manganese masses throughout and 10 percent medium iron-manganese concretions throughout; fragments; very strongly acid, pH 5.0, hellige-truog; gradual wavy boundary. Lab sample # MU013095
    2Bt3—69 to 180 centimeters (27.2 to 70.9 inches); dark red (2.5YR 3/6) silty clay; 1 percent light gray (10YR 7/1) coarse prominent and 30 percent yellowish red (5YR 5/6) medium distinct mottles; strong fine and medium angular blocky structure; very firm; 3.0 very fine roots; 35 percent distinct clay films on faces of peds; 10 percent medium and coarse iron-manganese masses throughout and 10 percent medium and coarse iron-manganese concretions throughout; fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU013096
    2Bt4—180 to 203 centimeters (70.9 to 79.9 inches); dark red (2.5YR 3/6) silty clay; 1 percent light gray (10YR 7/1) medium prominent and 30 percent yellowish red (5YR 5/6) medium distinct mottles; strong fine and medium angular blocky structure; very firm; 35 percent distinct clay films on faces of peds; 30 percent coarse iron-manganese masses throughout and 30 percent coarse iron-manganese concretions throughout; fragments; very strongly acid, pH 4.9, hellige-truog. Lab sample # MU013097