IDENTIFIERS

  • Current Taxon Name (Soil Name): Courtois
  • OSD
  • Series Extent
  • User Site ID: 1993MO223003M
  • User Pedon ID: 1993MO223003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9322303
  • 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: 37.1967506
  • Std. Longitude: -90.5255356
  • Datum: WGS84
  • Township: T29N
  • Range: R5E
  • Section: 8
  • PLSS Details: 2200 feet E and 300 feet N of the SW corner
  • Location Description: 2200 ft. east and 300 ft. north of the SW corner of sec. 8 T29N 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-B5—Patterson, Missouri

    • PEDON

  • Describers Name: DH
  • Current Taxonomic Class: Fine, mixed, active, mesic Aquic Paleudalfs
  • 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 - 20 to 70 cm.
  • Classificaton Date - 3/7/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Courtois
  • Taxon Kind - series
  • Classificaton Date - 7/13/1993
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 41 Cation Exc. to Clay x100


    • SITE

  • Parent Material: loess over residuum
  • Landscape: basin
  • Landform: basin-floor remnant
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Runoff: high
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/13/1993 (actual site observation date)
  • Air Photo ID: 2198-291
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop 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—20

    20—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

    5

    —

    —

    126

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); brown (7.5YR 4/4), strong brown (7.5YR 5/6), dry; silt loam; moderate fine subangular blocky structure; friable; 3.0 very fine and fine roots; fragments; neutral, pH 6.9, hellige-truog; clear smooth boundary. Lab sample # MU049189
    Bt1—20 to 38 centimeters (7.9 to 15.0 inches); strong brown (7.5YR 4/6) silty clay loam; moderate fine subangular blocky structure; firm; 0.5 very fine roots; 10 percent manganese or iron-manganese stains and 30 percent faint clay films on faces of peds; fragments; neutral, pH 7.2, hellige-truog; clear smooth boundary. Lab sample # MU049190
    2Bt2—38 to 79 centimeters (15.0 to 31.1 inches); dark reddish brown (2.5YR 3/4) silty clay; 15 percent grayish brown (10YR 5/2) medium prominent and 15 percent yellowish brown (10YR 5/4) medium prominent mottles; weak medium prismatic parts to strong very fine angular blocky structure; very firm; 0.5 very fine roots; 30 percent faint clay films on faces of peds; 1 percent fine iron-manganese masses; 3 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.4, hellige-truog; gradual wavy boundary. Lab sample # MU049191
    2Bt3—79 to 119 centimeters (31.1 to 46.9 inches); dark reddish brown (2.5YR 3/4) clay; 1 percent pale brown (10YR 6/3) medium prominent mottles; weak medium prismatic parts to strong very fine angular blocky structure; very firm; 0.5 very fine and fine roots; 30 percent faint clay films on faces of peds; 1 percent fine iron-manganese masses; 3 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.2, hellige-truog; gradual wavy boundary. Lab sample # MU049192
    2Bt4—119 to 203 centimeters (46.9 to 79.9 inches); dark reddish brown (2.5YR 3/4) clay; weak medium prismatic parts to strong very fine angular blocky structure; very firm; 0.5 very fine and fine roots; 30 percent faint clay films on faces of peds; 1 percent fine iron-manganese masses; fragments; neutral, pH 6.8, hellige-truog. Lab sample # MU049193