IDENTIFIERS

  • Current Taxon Name (Soil Name): Courtois
  • OSD
  • Series Extent
  • User Site ID: 1998MO221177M
  • User Pedon ID: 1998MO221177
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9822147
  • 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: 37.7865000
  • Std. Longitude: -90.7585278
  • Datum: WGS84
  • Location Description: Washington County, Missouri; about 1 mile NE of Caledonia; USGS Belgrade quadrangle,.
  • Map Unit: z73283—Courtois silt loam, 3 to 8 percent slopes, eroded
  • State: Missouri
  • County: MO221—Washington
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO221—Washington County, Missouri

    • PEDON

  • Describers Name: DS
  • Current Taxonomic Class: Fine, mixed, active Typic Paleudalfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Courtois
  • PSC - 10 to 60 cm.
  • Classificaton Date - 4/1/2011
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Courtois
  • Taxon Kind - series
  • Classificaton Date - 10/26/1998
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: slope alluvium and/or residuum weathered from dolomite
  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: head slope
  • Hill Slope Profile: backslope
  • Slope Position: upper third
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/26/1998 (actual site observation date)
  • Air Photo ID: F-11
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    —

    —

    288

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    —
    Ap—0 to 10 centimeters (0.0 to 3.9 inches); brown (10YR 4/3), brown (10YR 5/3), dry; silt loam; moderate fine subangular blocky structure; friable; 6.0 very fine and fine roots; 6.0 very fine and fine interstitial and tubular pores; fragments; moderately acid, pH 5.8, hellige-truog; clear smooth boundary. Lab sample # MU013336
    Bt1—10 to 20 centimeters (3.9 to 7.9 inches); 80 percent brown (10YR 4/3) and 20 percent brown (7.5YR 4/4) silty clay loam; weak very fine prismatic parts to moderate fine subangular blocky structure; friable; 3.0 very fine and fine roots; 6.0 fine and medium interstitial and tubular pores; fragments; moderately acid, pH 5.6, hellige-truog; clear smooth boundary. Lab sample # MU013337
    Bt2—20 to 33 centimeters (7.9 to 13.0 inches); reddish brown (5YR 4/4) silty clay loam; moderate fine prismatic parts to moderate very fine subangular blocky structure; firm; 3.0 very fine and fine roots; 3.0 very fine and fine interstitial and tubular pores; 15 percent prominent clay films on faces of peds; fragments; moderately acid, pH 5.7, hellige-truog; gradual smooth boundary. Lab sample # MU013338
    Bt3—33 to 48 centimeters (13.0 to 18.9 inches); dark red (2.5YR 3/6) silty clay loam; strong fine prismatic parts to moderate very fine subangular blocky structure; firm; 3.0 very fine and fine roots; 3.0 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 15 percent manganese masses; fragments; moderately acid, pH 5.8, hellige-truog; clear smooth boundary. Lab sample # MU013339
    Bt4—48 to 74 centimeters (18.9 to 29.1 inches); red (2.5YR 4/6) silty clay loam; moderate fine prismatic parts to moderate fine angular blocky structure; firm; 1.0 very fine and fine roots; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 70 percent manganese masses; fragments; strongly acid, pH 5.5, hellige-truog; gradual smooth boundary. Lab sample # MU013340
    Bt5—74 to 102 centimeters (29.1 to 40.2 inches); dark red (2.5YR 3/6) silty clay loam; moderate fine prismatic parts to moderate fine angular blocky structure; firm; 1.0 very fine and fine roots; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 30 percent manganese masses; fragments; very strongly acid, pH 4.9, hellige-truog; gradual smooth boundary. Lab sample # MU013341
    2Bt6—102 to 122 centimeters (40.2 to 48.0 inches); dark red (2.5YR 3/6) silty clay; moderate fine prismatic parts to moderate fine angular blocky structure; very firm; 1.0 very fine and fine roots; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 60 percent manganese masses; fragments; strongly acid, pH 5.2, hellige-truog; gradual smooth boundary. Lab sample # MU013342
    2Bt7—122 to 173 centimeters (48.0 to 68.1 inches); dark red (2.5YR 3/6) silty clay; moderate fine prismatic parts to moderate fine angular blocky structure; very firm; 0.5 very fine and fine interstitial and tubular pores; 15 percent distinct skeletans on faces of peds and 30 percent distinct clay films on faces of peds; 30 percent manganese masses; fragments; strongly acid, pH 5.4, hellige-truog; gradual smooth boundary. Lab sample # MU013343
    2Bt8—173 to 221 centimeters (68.1 to 87.0 inches); dark reddish brown (2.5YR 3/4) silty clay; moderate fine prismatic parts to moderate fine subangular blocky structure; very firm; 0.5 very fine and fine interstitial and tubular pores; 30 percent clay films; 60 percent manganese masses; fragments; strongly acid, pH 5.3, hellige-truog; gradual smooth boundary. Lab sample # MU013344
    2Bt9—221 to 234 centimeters (87.0 to 92.1 inches); red (2.5YR 4/6) silty clay loam; moderate fine prismatic structure; very firm; 0.5 very fine and fine interstitial and tubular pores; 15 percent clay films; 15 percent manganese masses; fragments; strongly acid, pH 5.3, hellige-truog; gradual smooth boundary. Lab sample # MU013345