IDENTIFIERS

  • Current Taxon Name (Soil Name): Plato
  • OSD
  • Series Extent
  • User Site ID: 1994MO125000M
  • User Pedon ID: 1994MO125000
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9412500
  • Print Date: 11/21/2024

    • LOCATION

  • Location Description: Adams/Wallace property
  • State: Missouri
  • County: MO125—Maries
  • MLRA: 116B—Springfield Plain

    • PEDON

  • Describers Name: WK KOD
  • Current Taxonomic Class: Fine, mixed Oxyaquic Fragiudalfs
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Plato
  • Taxonomic Class - Fine, mixed Oxyaquic Fragiudalfs
  • Taxon Kind - series
  • PSC - 23 to 71 cm.
  • Classificaton Date - 8/10/1994
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess derived from mixed-noncalcareous and/or slope alluvium derived from mixed-noncalcareous and/or residuum weathered from mixed
  • Landscape: hills
  • Landform: hillside
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/10/1994 (actual site observation date)
  • Air Photo ID: 10C
  • 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

    ochric epipedon

    argillic horizon

    fragipan

    0—23

    23—71

    71—127

    —-

    —-

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    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

    7

    76

    30.5

    315

    —

    27

    —

    —

    —

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    A—0 to 8 centimeters (0.0 to 3.1 inches); brown (10YR 4/3) crushed silt loam; moderate fine granular structure; friable; 8.0 very fine and fine roots throughout and 4.0 medium roots throughout; 6.0 very fine and fine moderate-continuity vesicular pores; fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU050496
    E—8 to 23 centimeters (3.1 to 9.1 inches); yellowish brown (10YR 5/4) crushed silt loam; moderate thin platy parts to moderate fine subangular blocky structure; friable; 7.0 very fine and fine roots throughout and 4.0 medium roots throughout and 0.8 coarse roots throughout; 4.0 very fine and fine moderate-continuity vesicular pores; fragments; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # MU050497
    Bt1—23 to 38 centimeters (9.1 to 15.0 inches); dark yellowish brown (10YR 4/6) interior silty clay loam; weak fine prismatic parts to moderate fine subangular blocky structure; firm; 0.5 very fine to medium roots throughout; 1.0 very fine low-continuity vesicular pores; 60 percent distinct dark yellowish brown (10YR 4/6), moist, clay films on faces of peds; fragments; very strongly acid, pH 4.6, hellige-truog; gradual smooth boundary. Lab sample # MU050498. continuous - phpvsfiid 148434; continuous - phpvsfiid 148434
    Bt2—38 to 64 centimeters (15.0 to 25.2 inches); 95 percent dark yellowish brown (10YR 4/6) interior silty clay; 5 percent grayish brown (10YR 5/2) fine prominent irregular mottles; weak fine prismatic parts to moderate fine subangular blocky structure; firm; 0.4 very fine and fine roots between peds; 3.0 very fine low-continuity vesicular pores; 60 percent distinct dark yellowish brown (10YR 4/6), moist, clay films on faces of peds; 1 percent by volume subangular 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.5, hellige-truog; clear wavy boundary. Lab sample # MU050499. All gravels are chert,; continuous - phpvsfiid 148435; continuous - phpvsfiid 148435
    Bt3—64 to 71 centimeters (25.2 to 28.0 inches); 85 percent light brownish gray (10YR 6/2) interior silty clay; 15 percent yellowish brown (10YR 5/6) coarse prominent irregular mottles; moderate coarse platy parts to weak fine subangular blocky structure; firm; 0.4 very fine and fine roots between peds; 3.0 very fine low-continuity vesicular pores; 10 percent distinct yellowish brown (10YR 5/6), moist, clay films on faces of peds; 10 percent by volume subangular 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.5, hellige-truog; clear wavy boundary. Lab sample # MU050500. All gravels are chert. Horizontal preferential flow paths with 10YR 5/1 colors in horizon.; discontinuous - phpvsfiid 148436; discontinuous - phpvsfiid 148436
    2Btx1—71 to 91 centimeters (28.0 to 35.8 inches); 95 percent pale brown (10YR 6/3) interior gravelly silt loam; 5 percent yellowish brown (10YR 5/6) coarse prominent irregular mottles; moderate coarse and very coarse prismatic structure; extremely firm*, strong; brittle; 0.8 fine roots between peds; 2.0 very fine and fine low-continuity vesicular pores; 3 percent prominent gray (10YR 6/1), moist, clay films on faces of peds; 15 percent by volume subangular 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.5, hellige-truog; clear smooth boundary. Lab sample # MU050501. All gravels are chert. Vertical (10YR 6/1) streaks 10" apart; continuous - phpvsfiid 148437; continuous - phpvsfiid 148437
    2Btx2—91 to 127 centimeters (35.8 to 50.0 inches); 98 percent pale brown (10YR 6/3) interior extremely gravelly loam; moderate coarse and very coarse prismatic structure; extremely firm*, strong; brittle; 0.8 fine roots between peds; 2.0 very fine low-continuity vesicular pores; 3 percent prominent gray (10YR 6/1), moist, clay films on faces of peds; 80 percent by volume subangular 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # MU050502. All gravels are chert.; continuous - phpvsfiid 148438; continuous - phpvsfiid 148438
    3Bt4—127 to 160 centimeters (50.0 to 63.0 inches); 90 percent brownish yellow (10YR 6/8) interior clay; 5 percent light brownish gray (10YR 6/2) coarse prominent irregular and 5 percent red (2.5YR 4/8) medium prominent irregular mottles; moderate coarse prismatic parts to weak fine angular blocky structure; firm; 0.8 fine roots between peds; 0.8 very fine low-continuity vesicular pores; 5 percent by volume subangular 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.7, hellige-truog. Lab sample # MU050503. All gravels are chert. At base of horizon is a large sandstone "floater" that the backhoe was unable to get past.