IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1997MO221068M
  • User Pedon ID: 1997MO221068
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9722116
  • Print Date: 4/26/2025

    • 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: 37.7872667
  • Std. Longitude: -90.9671778
  • Datum: WGS84
  • State: Missouri
  • County: MO221—Washington
  • MLRA: 116A—Ozark Highland

    • PEDON

  • Describers Name: DMS,MAC
  • Current Taxonomic Class: Very-fine, mixed Typic Paleudults
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxonomic Class - Very-fine, mixed Typic Paleudults
  • Taxon Kind - series
  • PSC - 5 to 100 cm.
  • Classificaton Date - 5/27/1997
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum
  • Landscape: hills
  • Landform: ridge
  • Hill Slope Profile: summit
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/27/1997 (actual site observation date)
  • Air Photo ID: 26
  • Surface Cover Properties:
  • 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

    11

    —

    —

    364

    —

    130

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    —

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    A—0 to 5 centimeters (0.0 to 2.0 inches); dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; very gravelly silt loam; moderate very fine granular structure; friable; 6.0 very fine and fine interstitial and tubular pores; 10 percent by volume 75-162-250 millimeter limestone, cherty fragments and 35 percent by volume 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.2, hellige-truog; abrupt smooth boundary. Lab sample # MU020527
    E—5 to 15 centimeters (2.0 to 5.9 inches); light yellowish brown (10YR 6/4) extremely gravelly silt loam; weak fine subangular blocky parts to moderate very fine subangular blocky structure; friable; 6.0 very fine and fine roots and 0.5 medium and coarse roots; 3.0 very fine and fine interstitial and tubular pores; 20 percent faint skeletans on faces of peds; 5 percent by volume 75-162-250 millimeter limestone, cherty fragments and 60 percent by volume 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.6, hellige-truog; clear smooth boundary. Lab sample # MU020528
    Bt1—15 to 23 centimeters (5.9 to 9.1 inches); strong brown (7.5YR 5/6) very gravelly silty clay loam; moderate very fine and fine subangular blocky structure; friable; 3.0 very fine and fine roots and 0.5 medium and coarse roots; 3.0 very fine and fine interstitial and tubular pores; 35 percent distinct skeletans on faces of peds and 35 percent distinct clay films on faces of peds; 5 percent by volume 75-162-250 millimeter limestone, cherty fragments and 40 percent by volume 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.6, hellige-truog; gradual smooth boundary. Lab sample # MU020529
    2Bt2—23 to 38 centimeters (9.1 to 15.0 inches); 70 percent red (2.5YR 4/6) and 30 percent strong brown (7.5YR 5/6) gravelly clay; weak medium prismatic parts to moderate fine subangular blocky structure; firm; 0.5 very fine and fine roots and 3.0 medium and coarse roots; 3.0 very fine and fine interstitial and tubular pores; 35 percent distinct clay films on faces of peds; 20 percent by volume 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; gradual smooth boundary. Lab sample # MU020530
    2Bt3—38 to 71 centimeters (15.0 to 28.0 inches); red (2.5YR 4/6) clay; moderate coarse prismatic parts to moderate very fine subangular blocky structure; very firm; 0.5 very fine and fine roots and 0.5 medium and coarse roots; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 5 percent by volume 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; gradual smooth boundary. Lab sample # MU020531
    2Bt4—71 to 91 centimeters (28.0 to 35.8 inches); 40 percent red (2.5YR 4/6) and 30 percent yellowish red (5YR 5/8) and 30 percent reddish yellow (7.5YR 6/8) clay; moderate coarse prismatic parts to moderate fine subangular blocky structure; very firm; 0.5 very fine and fine roots; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 5 percent by volume 2-39-75 millimeter limestone, cherty fragments; extremely acid, pH 4.4, hellige-truog; gradual smooth boundary. Lab sample # MU020532. relic two chroma colors not indicated in description (10YR 6/2)
    2Bt5—91 to 119 centimeters (35.8 to 46.9 inches); 60 percent red (2.5YR 4/6) and 40 percent strong brown (7.5YR 5/8) clay; weak coarse prismatic parts to moderate fine subangular blocky structure; very firm; 0.5 very fine and fine roots; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 5 percent by volume 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # MU020533
    2Bt6—119 to 203 centimeters (46.9 to 79.9 inches); 70 percent red (2.5YR 4/6) and 30 percent strong brown (7.5YR 5/6) extremely stony clay; weak coarse prismatic parts to moderate fine angular blocky structure; very firm; 0.5 very fine and fine roots; 0.5 very fine and fine interstitial and tubular pores; 60 percent distinct clay films on faces of peds; 35 percent by volume 2-39-75 millimeter limestone, cherty fragments and 40 percent by volume 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.6, hellige-truog. Lab sample # MU020534