IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1995MO203053M
  • User Pedon ID: 1995MO203053M
  • User Site Association ID: 8562
  • Transect:
  • User Transect ID - shannon-x1
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9561353
  • NCSS Pedon Lab Data NASIS Record ID - 31795
  • 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: 37.1401944
  • Std. Longitude: -91.0933361
  • 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-B1—Exchange, Missouri

    • PEDON

  • Describers Name: SV,DMM,JAW,RLT
  • Current Taxonomic Class: Loamy-skeletal, siliceous, semiactive, mesic Fragic Paleudults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: map unit inclusion
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Poynor
  • PSC - 18 to 68 cm.
  • Classificaton Date - 3/7/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxonomic Class - Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 18 to 100 cm.
  • Classificaton Date - 6/26/1995
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 3
  • Field Measured Properties: 35 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: pedisediment and/or residuum and/or slope alluvium
  • Landscape: hills
  • Landform: hill
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Shape Across: convex
  • Slope Shape Down: concave
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/26/1995 (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

    fragic soil properties

    strongly contrasting particle size class

    0—18

    18—152

    64—91

    91—

    —-

    —-

    —-

    —-
    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

    13

    —

    —

    274

    —

    260

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 18 centimeters (0.0 to 7.1 inches); dark grayish brown (10YR 4/2) gravelly silt loam; moderate medium granular structure; friable; 3.0 fine and medium roots and 0.9 coarse roots; 7.0 fine interstitial and tubular pores; 30 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; extremely acid, pH 4.4, hellige-truog; clear smooth boundary. Lab sample # MU054518
    Bt1—18 to 38 centimeters (7.1 to 15.0 inches); pale brown (10YR 6/3) gravelly silt loam; weak fine subangular blocky structure; friable; 0.9 fine to coarse roots; 3.0 fine interstitial and tubular pores; 15 percent faint yellowish brown (10YR 5/4), moist, clay films on faces of peds; 25 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; clear smooth boundary. Lab sample # MU054519
    Bt2—38 to 64 centimeters (15.0 to 25.2 inches); light yellowish brown (10YR 6/4) extremely gravelly silt loam; weak fine subangular blocky structure; firm; 0.9 fine and medium roots; 0.9 fine interstitial and tubular pores; 15 percent distinct black (N 2/0), moist, iron stains throughout and 35 percent distinct yellowish red (5YR 5/6), moist, clay films on rock fragments and 35 percent distinct pale brown (10YR 6/3), moist, silt coats throughout; 2 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 70 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.3, hellige-truog; clear wavy boundary. Lab sample # MU054520
    2Btx—64 to 91 centimeters (25.2 to 35.8 inches); strong brown (7.5YR 5/6) very gravelly clay loam; weak very coarse prismatic parts to moderate fine subangular blocky structure; extremely firm*; brittle; 0.9 fine and medium roots; 3.0 fine tubular pores; 15 percent prominent black (N 2/0), moist, iron stains throughout and 35 percent distinct yellowish red (5YR 4/6), moist, clay films on faces of peds and 35 percent distinct light brownish gray (10YR 6/2), moist, silt coats throughout; 2 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 55 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.2, hellige-truog; clear wavy boundary. Lab sample # MU054521
    3Bt3—91 to 119 centimeters (35.8 to 46.9 inches); 70 percent strong brown (7.5YR 5/6) and 30 percent red (2.5YR 4/8) gravelly clay; strong very fine and fine angular blocky structure; very firm; 0.9 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 faint brown (7.5YR 5/4), moist, clay films on faces of peds and 35 percent distinct light yellowish brown (10YR 6/4), moist, silt coats throughout; 2 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 30 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU054522
    3Bt4—119 to 137 centimeters (46.9 to 53.9 inches); 60 percent strong brown (7.5YR 5/6) and 40 percent red (2.5YR 4/8) gravelly clay; moderate very fine and fine angular blocky structure; very firm; 0.9 fine tubular pores; 35 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds and 35 percent faint brownish yellow (10YR 6/6), moist, clay films on faces of peds and 35 percent distinct pale brown (10YR 6/3), moist, silt coats throughout; 1 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 25 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # MU054523