IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1994MO203019M
  • User Pedon ID: 1994MO203019M
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9461319
  • NCSS Pedon Lab Data NASIS Record ID - 32111
  • Print Date: 2/17/2025

    • 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: 37.0781278
  • Std. Longitude: -91.4080972
  • Datum: WGS84
  • State: Missouri
  • County: MO203—Shannon
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO203—Shannon County, Missouri
  • 7.5 Minute USGS Quad: 37091-A4—Bartlett, Missouri

    • PEDON

  • Describers Name: JW LT SV
  • Current Taxonomic Class: Loamy-skeletal over clayey, siliceous, subactive, mesic Typic Paleudults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: within range of map unit
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Poynor
  • PSC - 35 to 100 cm.
  • Classificaton Date - 3/28/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Alred
  • Taxonomic Class - Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudalfs
  • Taxon Kind - series
  • PSC - 35 to 100 cm.
  • Classificaton Date - 9/7/1994
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • Field Measured Properties: 35 Strongly contrasting textural stratification (depth in inches) and 19 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: slope alluvium over residuum
  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Position: on a slope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/7/1994 (actual site observation date)
  • Air Photo ID: 19
  • 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

    strongly contrasting particle size class

    5—35

    35—170

    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

    9

    —

    —

    283.4

    —

    350

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 5 centimeters (0.0 to 2.0 inches); slightly decomposed plant material; fragments.
    A—5 to 20 centimeters (2.0 to 7.9 inches); 60 percent grayish brown (10YR 5/2) and 40 percent light brownish gray (10YR 6/2) very gravelly loamy sand; weak fine granular structure; friable; 7.0 very fine and fine roots; 7.0 fine interstitial and tubular pores; 2 percent by volume nonflat subangular indurated 600-?-? millimeter sandstone, unspecified fragments and 15 percent by volume nonflat subangular indurated 75-162-250 millimeter sandstone, unspecified fragments and 25 percent by volume nonflat angular indurated 2-39-75 millimeter sandstone, unspecified fragments; very strongly acid, pH 4.5, hellige-truog; clear wavy boundary. Lab sample # MU051741
    E—20 to 35 centimeters (7.9 to 13.8 inches); 65 percent pale brown (10YR 6/3) and 35 percent light yellowish brown (10YR 6/4) sandy loam; weak fine subangular blocky structure; friable; 3.0 very fine and fine roots and 0.5 medium roots; 3.0 fine tubular pores; 15 percent faint brown (10YR 4/3), moist, organic stains; 1 percent by volume nonflat subangular indurated 250-425-600 millimeter sandstone, unspecified fragments and 2 percent by volume nonflat subangular indurated 600-?-? millimeter sandstone, unspecified fragments and 5 percent by volume nonflat subangular indurated 2-39-75 millimeter sandstone, unspecified fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU051742
    Bt1—35 to 48 centimeters (13.8 to 18.9 inches); strong brown (7.5YR 4/6) gravelly sandy loam; weak fine subangular blocky structure; friable; 3.0 very fine and fine roots and 0.5 medium roots; 3.0 fine tubular pores; 35 percent distinct brown (7.5YR 4/4), moist, clay films on rock fragments and 35 percent distinct pale brown (10YR 6/3), moist, silt coats on rock fragments; 1 percent by volume nonflat subangular indurated 250-425-600 millimeter sandstone, unspecified fragments and 1 percent by volume nonflat subangular indurated 600-?-? millimeter sandstone, unspecified fragments and 2 percent by volume nonflat subangular indurated 75-162-250 millimeter sandstone, unspecified fragments and 15 percent by volume nonflat subangular indurated 2-39-75 millimeter sandstone, unspecified fragments; very strongly acid, pH 4.8, hellige-truog; clear irregular boundary. Lab sample # MU051743
    Bt2—48 to 69 centimeters (18.9 to 27.2 inches); brown (7.5YR 5/4) extremely gravelly sandy loam; moderate fine subangular blocky structure; firm; 3.0 very fine and fine roots; 0.5 medium tubular and 3.0 fine tubular pores; 35 percent distinct strong brown (7.5YR 4/6), moist, clay films on rock fragments and 35 percent distinct light yellowish brown (10YR 6/4), moist, silt coats on faces of peds; 5 percent by volume nonflat subangular indurated 75-162-250 millimeter sandstone, unspecified fragments and 65 percent by volume nonflat subangular indurated 2-39-75 millimeter sandstone, unspecified fragments; very strongly acid, pH 4.8, hellige-truog; clear irregular boundary. Lab sample # MU051744
    Bt3—69 to 94 centimeters (27.2 to 37.0 inches); strong brown (7.5YR 5/6) extremely gravelly sandy loam; weak fine subangular blocky structure; firm; 3.0 very fine and fine roots; 0.5 medium tubular and 3.0 fine tubular pores; 35 percent distinct yellowish red (5YR 4/6), moist, clay films on rock fragments; 15 percent by volume nonflat subangular indurated 75-162-250 millimeter sandstone, unspecified fragments and 60 percent by volume nonflat subangular indurated 2-39-75 millimeter sandstone, unspecified fragments; very strongly acid, pH 4.7, hellige-truog; clear wavy boundary. Lab sample # MU051745
    2Bt4—94 to 127 centimeters (37.0 to 50.0 inches); red (2.5YR 4/6) gravelly clay; moderate fine angular blocky structure; firm; 3.0 fine roots; 3.0 fine tubular pores; 35 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds and 35 percent distinct brown (7.5YR 5/4), moist, silt coats on faces of peds; 5 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 25 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; clear wavy boundary. Lab sample # MU051746
    2Bt5—127 to 170 centimeters (50.0 to 66.9 inches); 75 percent red (2.5YR 4/6) and 25 percent yellowish brown (10YR 5/8) clay; strong fine angular blocky structure; very firm; 0.5 very fine and fine roots; 3.0 fine tubular pores; 15 percent distinct pressure faces and 35 percent distinct dark reddish brown (2.5YR 3/4), moist, clay films on faces of peds; 15 percent fine spherical black (N 2/0) iron-manganese masses between peds; 2 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 10 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # MU051747