IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1995MO203007M
  • User Pedon ID: 1995MO203007M
  • 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 # - M9561307
  • NCSS Pedon Lab Data NASIS Record ID - 31897
  • User Project ID: 2021-25NCSPR013
  • Project Name: MLRA 116A - Mark Twain National Forest Update
  • Print Date: 11/21/2024

    • 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: 37.0153944
  • Std. Longitude: -91.4816500
  • 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, RLT, SAV
  • Current Taxonomic Class: Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Poynor
  • PSC - 39 to 100 cm.
  • Classificaton Date - 2/21/2024
  • Classifier - Campbell and Meinert
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Noark
  • Taxonomic Class - Clayey-skeletal, mixed, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 39 to 89 cm.
  • Classificaton Date - 4/20/1995
  • 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: 37 percent of Percent clay in the control section and 36 Percent rock fragments in the control section (vol) and 24 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: residuum and/or slope alluvium derived from dolomite
  • Landscape: hills
  • Landform: hill
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/20/1995 (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

    abrupt textural change

    3—28

    28—171

    64—

    —-

    —-

    —-
    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

    8

    —

    —

    335

    —

    220

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments.
    A—3 to 18 centimeters (1.2 to 7.1 inches); dark grayish brown (10YR 4/2) very gravelly silt loam; weak fine granular structure; very friable; 7.0 very fine and fine roots; 7.0 fine interstitial pores; 5 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; moderately acid, pH 5.6, hellige-truog; clear wavy boundary. Lab sample # MU054304
    EA—18 to 28 centimeters (7.1 to 11.0 inches); brown (10YR 5/3) silt loam; moderate fine subangular blocky structure; friable; 3.0 fine roots; 3.0 fine tubular pores; 35 percent distinct dark grayish brown (10YR 4/2), moist, organic stains throughout; 10 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 # MU054305
    BE—28 to 39 centimeters (11.0 to 15.4 inches); yellowish brown (10YR 5/4) gravelly silt loam; moderate fine angular blocky structure; friable; 0.5 medium roots and 0.5 fine roots; 3.0 fine tubular pores; 35 percent distinct yellowish brown (10YR 5/6) clay films on faces of peds; 15 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 # MU054306
    Bt2—39 to 64 centimeters (15.4 to 25.2 inches); 50 percent strong brown (7.5YR 5/6) and 50 percent light yellowish brown (10YR 6/4) very gravelly clay loam; moderate fine angular blocky, and moderate fine subangular blocky structure; firm; 0.1 medium roots and 0.1 fine roots; 3.0 fine interstitial and tubular pores; 35 percent prominent yellowish red (5YR 4/6), moist, clay films on rock fragments and 75 percent prominent light yellowish brown (10YR 6/4), moist, silt coats throughout; 1 percent by volume nonflat subangular indurated 150-265-380 millimeter chert fragments and 5 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 35 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU054307
    2Bt3—64 to 102 centimeters (25.2 to 40.2 inches); 70 percent strong brown (7.5YR 5/6) and 20 percent red (2.5YR 4/6) and 10 percent yellowish red (5YR 4/6) gravelly clay; moderate fine angular blocky, and moderate fine subangular blocky structure; firm; 0.1 very fine and fine roots; 0.5 fine tubular pores; 15 percent distinct light yellowish brown (10YR 6/4), moist, silt coats throughout and 35 percent distinct yellowish red (5YR 4/6), moist, clay films on faces of peds; 1 percent by volume nonflat subangular indurated 250-425-600 millimeter chert fragments and 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 # MU054308
    2Bt4—102 to 119 centimeters (40.2 to 46.9 inches); 70 percent red (2.5YR 4/6) and 30 percent yellowish brown (10YR 5/4) clay; moderate fine angular blocky structure; very firm; 0.1 very fine and fine roots; 0.1 medium tubular and 0.5 fine tubular pores; 35 percent distinct brown (10YR 5/3), moist, silt coats throughout and 75 percent prominent yellowish brown (10YR 5/4), moist, clay films on faces of peds and 75 percent prominent yellowish red (5YR 4/6), moist, clay films on faces of peds; 2 percent by volume nonflat subangular indurated 75-162-250 millimeter chert fragments and 2 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 # MU054309
    2Bt5—119 to 149 centimeters (46.9 to 58.7 inches); 85 percent red (2.5YR 4/6) and 10 percent brownish yellow (10YR 6/8) and 5 percent white (10YR 8/1) clay; weak fine platy parts to moderate fine subangular blocky structure; very firm; 0.1 very fine and fine roots; 0.1 medium tubular and 0.5 fine tubular pores; 15 percent distinct strong brown (7.5YR 4/6), moist, clay films on faces of peds and 15 percent prominent yellowish brown (10YR 5/4), moist, silt coats throughout and 15 percent prominent brown (10YR 5/3), moist, silt coats throughout and 35 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds; 2 percent by volume nonflat subangular indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; gradual wavy boundary. Lab sample # MU054310
    2Bt6—149 to 171 centimeters (58.7 to 67.3 inches); 80 percent red (2.5YR 4/6) and 15 percent brownish yellow (10YR 6/8) and 5 percent white (10YR 8/1) clay; moderate fine angular blocky structure; very firm; 0.1 very fine and fine roots; 0.1 fine interstitial and tubular pores; 35 percent faint red (2.5YR 4/6), moist, pressure faces on faces of peds; 15 percent fine irregular very dark brown (10YR 2/2) dark concretions; fragments; very strongly acid, pH 4.7, hellige-truog. Lab sample # MU054311