IDENTIFIERS

  • Current Taxon Name (Soil Name): Bonnefemme
  • OSD
  • Series Extent
  • User Site ID: 1991MO019056
  • User Pedon ID: 1991MO019056
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9101956
  • NCSS Pedon Lab Data NASIS Record ID - 26664
  • Print Date: 11/13/2025

    • 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: 38.7425908
  • Std. Longitude: -92.1947552
  • Datum: WGS84
  • Range: R11W
  • Section: 20
  • Location Description: 200 feet north and 900 feet east of the SW corner of sec. 20, T.46N.,R.11W.
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 115—Central Mississippi Valley Wooded Slopes

    • PEDON

  • Describers Name: FJY and MWO
  • Current Taxon Kind: series
  • Pedon Type: within range of map unit
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Bonnefemme
  • PSC - 5 to 56 cm.
  • Classificaton Date - 7/3/1991
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum
  • Landscape: hills
  • Landform: hillside
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/3/1991 (actual site observation date)
  • Air Photo ID: 49
  • Surface Cover Properties:
  • 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

    argillic horizon

    5—94

    —-
    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

    20

    —

    —

    —

    —

    330

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 5 centimeters (0.0 to 2.0 inches); dark brown (10YR 3/3) and dark yellowish brown (10YR 4/4), very pale brown (10YR 7/3) and brown (10YR 5/3), dry; silt loam; moderate very fine and fine subangular blocky structure; friable; 6.0 very fine and fine roots and 0.1 medium roots; fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary. Lab sample # MU011086
    Bt1—5 to 18 centimeters (2.0 to 7.1 inches); brown (7.5YR 4/4) silty clay; moderate medium subangular blocky structure; firm; 3.0 very fine and fine roots and 6.0 medium roots; 65 percent faint clay films on faces of peds; fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # MU011087
    Bt2—18 to 33 centimeters (7.1 to 13.0 inches); brown (7.5YR 4/4) silty clay loam; moderate fine subangular blocky structure; firm; 0.1 very fine and fine roots and 6.0 coarse roots; 15 percent distinct yellowish brown (10YR 5/6) silt coats on faces of peds and 65 percent faint clay films on faces of peds; fragments; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # MU011088
    Bt3—33 to 51 centimeters (13.0 to 20.1 inches); strong brown (7.5YR 4/6) silty clay loam; moderate fine prismatic parts to moderate medium subangular blocky structure; firm; 0.1 very fine and fine roots and 6.0 coarse roots; 15 percent manganese or iron-manganese stains and 35 percent distinct brown (7.5YR 4/4) clay films on faces of peds and 35 percent prominent pale brown (10YR 6/3) silt coats on faces of peds; fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # MU011089
    Bt4—51 to 81 centimeters (20.1 to 31.9 inches); strong brown (7.5YR 4/6) silty clay loam; moderate medium prismatic parts to weak fine subangular blocky structure; firm; 0.1 very fine roots and 0.1 medium roots; 15 percent distinct brownish yellow (10YR 6/6) silt coats on faces of peds and 40 percent distinct dark yellowish brown (10YR 4/4) clay films on faces of peds; fragments; strongly acid, pH 5.2, hellige-truog; clear wavy boundary. Lab sample # MU011090
    2Bt5—81 to 94 centimeters (31.9 to 37.0 inches); brown (7.5YR 4/4) silty clay; moderate fine prismatic parts to moderate fine subangular blocky structure; firm; 0.1 very fine and fine roots; 30 percent prominent dark brown (7.5YR 3/4) clay films on faces of peds and 30 percent manganese or iron-manganese stains; 2 percent by volume 75-162-250 millimeter unspecified fragments; neutral, pH 6.6, hellige-truog; abrupt wavy boundary. Lab sample # MU011091
    R—94 centimeters (37.0 inches); bedrock; fragments.