IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1994MO203942M
  • User Pedon ID: 1994MO203942M
  • Transect:
  • Transect Stop Number - 2
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M94U_W02
  • NCSS Pedon Lab Data NASIS Record ID - 31970
  • Print Date: 11/23/2024

    • 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: 37.1480806
  • Std. Longitude: -91.0887361
  • Datum: WGS84
  • State: Missouri
  • County: MO203—Shannon
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO613—Shannon County, Missouri, North & West PartsMO203—Shannon County, Missouri
  • 7.5 Minute USGS Quad: 37091-B1—Exchange, Missouri

    • PEDON

  • Describers Name: JW, SV
  • Current Taxonomic Class: Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudults
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Poynor
  • PSC - 28 to 100 cm.
  • Classificaton Date - 3/28/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxonomic Class - Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 31 to 100 cm.
  • Classificaton Date - 8/2/1994
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 30 Strongly contrasting textural stratification (depth in inches) and 26 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: residuum and/or slope alluvium
  • Landscape: hills
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/2/1994 (actual site observation date)
  • Air Photo ID: 16
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    3—31

    31—148

    —-

    —-
    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

    27

    —

    —

    268

    —

    270

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments.
    A—3 to 13 centimeters (1.2 to 5.1 inches); yellowish brown (10YR 5/4) very gravelly silt loam; moderate very fine granular structure; friable; 3.0 very fine and fine roots and 1.0 coarse roots; 8.0 very fine interstitial pores; 10 percent distinct brown (10YR 5/3), moist, silt coats on faces of peds and 30 percent distinct dark grayish brown (10YR 4/2), moist, organic stains on all faces of peds; 2 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 40 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # MU052335
    EB—13 to 31 centimeters (5.1 to 12.2 inches); 50 percent light yellowish brown (10YR 6/4) and 50 percent yellowish brown (10YR 5/4) gravelly silt loam; weak fine subangular blocky structure; friable; 1.0 medium roots and 2.0 fine roots and 1.0 coarse roots; 4.0 very fine and fine interstitial and 6.0 very fine and fine tubular pores; 10 percent distinct brown (10YR 5/3), moist, organic stains in root channels and/or pores; 2 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 15 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; clear smooth boundary. Lab sample # MU052336
    Bt11—31 to 41 centimeters (12.2 to 16.1 inches); 50 percent strong brown (7.5YR 5/6) and 50 percent light yellowish brown (10YR 6/4) very cobbly silt loam; weak fine subangular blocky structure; firm; 0.5 very fine and fine roots and 0.2 medium roots; 4.0 very fine and fine tubular and 3.0 fine interstitial pores; 10 percent distinct yellowish red (5YR 5/6), moist, clay films on vertical faces of peds and 75 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 20 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments and 20 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU052337
    Bt12—41 to 51 centimeters (16.1 to 20.1 inches); 50 percent strong brown (7.5YR 5/6) and 50 percent light yellowish brown (10YR 6/4) very cobbly silt loam; weak fine subangular blocky structure; firm; 0.5 very fine and fine roots and 0.2 medium roots; 4.0 very fine and fine tubular and 3.0 fine interstitial pores; 10 percent distinct yellowish red (5YR 5/6), moist, clay films on vertical faces of peds and 75 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 20 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 20 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog. Lab sample # MU052338
    Bt2—51 to 67 centimeters (20.1 to 26.4 inches); 50 percent strong brown (7.5YR 4/6) and 50 percent pale brown (10YR 6/3) very gravelly silt loam; moderate fine subangular blocky structure; firm, weakly cemented; 0.2 very fine and fine roots and 0.1 medium roots; 1.0 fine vesicular and 7.0 fine tubular pores; 75 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds and 75 percent distinct strong brown (7.5YR 4/6), moist, clay films on faces of peds and 75 percent distinct yellowish red (5YR 4/6), moist, clay films on faces of peds; 15 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 30 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # MU052339
    Bt3—67 to 79 centimeters (26.4 to 31.1 inches); 50 percent strong brown (7.5YR 5/6) and 50 percent pale brown (10YR 6/3) gravelly silt loam; moderate medium subangular blocky structure; firm, weakly cemented; 0.1 very fine and fine roots and 0.1 medium roots; 1.0 fine vesicular and 5.0 fine tubular pores; 10 percent distinct yellowish red (5YR 4/6), moist, clay films on faces of peds and 30 percent distinct strong brown (7.5YR 4/6), moist, clay films on vertical faces of peds and 30 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 2 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 30 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # MU052340
    2Bt41—79 to 89 centimeters (31.1 to 35.0 inches); 50 percent red (2.5YR 4/6) and 50 percent yellowish red (5YR 5/6) clay; weak medium prismatic parts to strong very fine subangular blocky structure; firm; 0.3 medium roots and 0.1 fine roots; 2.0 fine vesicular and 2.0 fine tubular pores; 10 percent distinct dark red (2.5YR 3/6), moist, clay films on all faces of peds and 30 percent distinct brown (7.5YR 4/4), moist, clay films on faces of peds and 30 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 2 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 8 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; gradual wavy boundary. Lab sample # MU052341
    2Bt42—92 to 105 centimeters (36.2 to 41.3 inches); 50 percent red (2.5YR 4/6) and 50 percent yellowish red (5YR 5/6) clay; weak medium prismatic, and strong very fine subangular blocky structure; firm; 0.3 medium roots and 0.1 fine roots; 2.0 fine vesicular and 2.0 fine tubular pores; 10 percent distinct dark red (2.5YR 3/6), moist, clay films on all faces of peds and 30 percent distinct brown (7.5YR 4/4), moist, clay films on faces of peds and 30 percent distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds; 2 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 8 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog. Lab sample # MU052342
    2Bt5—105 to 122 centimeters (41.3 to 48.0 inches); red (2.5YR 4/6) clay; weak medium prismatic parts to moderate very fine subangular blocky parts to moderate very fine angular blocky structure; firm; 0.1 very fine and fine roots and 0.1 medium roots; 2.0 fine tubular pores; 75 percent distinct yellowish brown (10YR 5/4), moist, clay films on faces of peds and 75 percent distinct brown (7.5YR 4/4), moist, clay films on faces of peds and 75 percent distinct dark red (2.5YR 3/6), moist, clay films on faces of peds; 5 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; gradual wavy boundary. Lab sample # MU052343
    2Bt61—122 to 135 centimeters (48.0 to 53.1 inches); 32 percent red (2.5YR 4/6) and 32 percent yellowish red (5YR 5/6) and 32 percent brownish yellow (10YR 6/6) and 5 percent white (10YR 8/1) clay; weak medium prismatic parts to moderate fine angular blocky structure; firm; 0.1 very fine and fine roots; 2.0 very fine and fine tubular and 3.0 fine interstitial pores; 10 percent distinct dark red (2.5YR 3/6), moist, clay films on faces of peds and 30 percent distinct yellowish red (5YR 5/6), moist, clay films on faces of peds; 2 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # MU052344
    2Bt62—135 to 148 centimeters (53.1 to 58.3 inches); 32 percent red (2.5YR 4/6) and 32 percent yellowish red (5YR 5/6) and 32 percent brownish yellow (10YR 6/6) and 5 percent white (10YR 8/1) clay; weak medium prismatic parts to moderate fine angular blocky structure; firm; 0.1 very fine and fine roots; 2.0 very fine and fine tubular and 3.0 fine interstitial pores; 10 percent distinct dark red (2.5YR 3/6), moist, clay films on faces of peds and 30 percent distinct yellowish red (5YR 5/6), moist, clay films on faces of peds; 2 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog. Lab sample # MU052345