IDENTIFIERS

  • Current Taxon Name (Soil Name): Leonard
  • OSD
  • Series Extent
  • User Site ID: 1991MO019008
  • User Pedon ID: 1991MO019008
  • User Site Association ID: Leonard TUDS
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Print Date: 12/10/2025

    • LOCATION

  • Range: 11 W
  • Section: 4
  • Location Description: 2650 feet east and 1600 feet north of the southwest corner of sec. 4, T.51N., R.11W., MESA Field 3, pedon 2, middle south part of field
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 113—Central Claypan Areas

    • PEDON

  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Leonard
  • PSC - 20 to 71 cm.
  • Classificaton Date - 5/2/1996
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess and/or till
  • Landscape: upland
  • Geomorphic Component Hills: head slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: concave
  • Slope Shape Down: concave
  • Drainage Class: poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/2/1996 (actual site observation date)
  • Air Photo ID: 3
  • 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

    argillic horizon

    20—152

    —-
    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

    3

    —

    —

    —

    —

    270

    914

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    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silt loam; weak fine granular structure; friable; 3.0 very fine roots; fragments; neutral, pH 6.6, hellige-truog; abrupt smooth boundary.
    Btg1—20 to 28 centimeters (7.9 to 11.0 inches); dark gray (10YR 4/1) silty clay; moderate fine subangular blocky structure; firm; 0.5 very fine roots; 35 percent distinct clay films on faces of peds; 10 percent fine yellowish brown (10YR 5/6) masses of oxidized iron; 1 percent fine yellowish red (5YR 4/6); fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary.
    Btg2—28 to 51 centimeters (11.0 to 20.1 inches); dark gray (10YR 4/1) silty clay; weak fine subangular blocky structure; firm; 0.5 very fine roots; 60 percent distinct clay films on faces of peds; 25 percent fine yellowish brown (10YR 5/6) masses of oxidized iron; fragments; very strongly acid, pH 4.7, hellige-truog; gradual smooth boundary.
    Btg3—51 to 66 centimeters (20.1 to 26.0 inches); gray (10YR 5/1) silty clay loam; weak fine subangular blocky structure; firm; 0.5 very fine roots; 60 percent distinct clay films on faces of peds; strong brown (7.5YR 4/6) masses of oxidized iron; 25 percent fine strong brown (7.5YR 5/6) and 1 percent fine yellowish red (5YR 5/6); fragments; strongly acid, pH 5.2, hellige-truog; clear smooth boundary.
    2Btg4—66 to 107 centimeters (26.0 to 42.1 inches); gray (10YR 5/1) silty clay loam; 15 percent sand; weak medium prismatic parts to weak medium subangular blocky structure; firm; 60 percent distinct clay films on faces of peds; 1 percent fine yellowish red (5YR 4/6) masses of oxidized iron; fragments; strongly acid, pH 5.2, hellige-truog; clear smooth boundary.
    2Btg5—107 to 152 centimeters (42.1 to 59.8 inches); gray (10YR 5/1) silty clay loam; 15 percent sand; weak medium prismatic parts to weak fine subangular blocky structure; firm; 15 percent faint clay films in root channels and/or pores and 15 percent manganese or iron-manganese stains; 10 percent fine strong brown (7.5YR 4/6) masses of oxidized iron; fragments; strongly acid, pH 5.3, hellige-truog.