IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1995MO203061M
  • User Pedon ID: 1995MO203061M
  • Vegetation Plot ID: 1995MO203061M
  • Transect:
  • Transect Stop Number - 1
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9561361
  • NCSS Pedon Lab Data NASIS Record ID - 28006
  • 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: 37.1439528
  • Std. Longitude: -91.0708528
  • 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: DMM,SAV,RLT
  • 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 - 28 to 100 cm.
  • Classificaton Date - 2/25/2011
  • 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 - 28 to 100 cm.
  • Classificaton Date - 6/28/1995
  • 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: 19 Cation exchange capacity to clay ratio and 38 Strongly contrasting textural stratification (depth in inches)


    • SITE

  • Parent Material: residuum weathered from dolomite and/or slope alluvium derived from limestone and sandstone
  • Landscape: hills
  • Landform: hill
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Shape Across: convex
  • Slope Shape Down: concave
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/28/1995 (actual site observation date)
  • Air Photo ID: 16
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    FRCA13

    Frangula caroliniana

    Carolina buckthorn

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    strongly contrasting particle size class

    3—16

    16—145

    72—

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    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

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    —

    241

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    80

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    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments.
    A—3 to 16 centimeters (1.2 to 6.3 inches); dark grayish brown (10YR 4/2) gravelly silt loam; strong fine granular structure; very friable; 0.9 medium roots and 3.0 fine roots and 3.0 coarse roots; 7.0 fine interstitial and tubular pores; 30 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; clear smooth boundary. Lab sample # MU020265
    Bt1—16 to 28 centimeters (6.3 to 11.0 inches); yellowish brown (10YR 5/4) gravelly silt loam; moderate fine subangular blocky structure; friable; 3.0 medium roots and 0.9 fine roots and 0.9 fine roots; 0.9 fine tubular pores; 15 percent distinct yellowish brown (10YR 5/4), moist, clay films on rock fragments and 15 percent distinct dark grayish brown (10YR 4/2), moist, organic stains throughout and 15 percent distinct black (N 2/0), moist, iron stains on faces of peds; 20 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; clear smooth boundary. Lab sample # MU020266
    Bt2—28 to 46 centimeters (11.0 to 18.1 inches); yellowish brown (10YR 5/4) gravelly silt loam; moderate fine subangular blocky structure; friable; 0.9 medium and coarse roots and 3.0 fine roots; 0.9 medium tubular and 0.9 fine interstitial and tubular and 3.0 fine tubular pores; 15 percent distinct yellowish brown (10YR 5/6), moist, clay films on upper surfaces of peds or rocks and 15 percent prominent black (N 2/0), moist, iron stains on faces of peds; 25 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.1, hellige-truog; clear wavy boundary. Lab sample # MU020267
    Bt3—46 to 72 centimeters (18.1 to 28.3 inches); pale brown (10YR 6/3) extremely gravelly silt loam; weak fine subangular blocky structure; friable; 0.9 fine roots; 0.9 medium interstitial and tubular and 7.0 fine tubular pores; 35 percent distinct yellowish brown (10YR 5/4), moist, clay films on rock fragments; 5 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 60 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.2, hellige-truog; clear wavy boundary. Lab sample # MU020268
    2Bt4—72 to 100 centimeters (28.3 to 39.4 inches); 70 percent brown (7.5YR 5/4) and 30 percent red (2.5YR 4/8) gravelly silty clay; moderate fine angular blocky structure; firm; 0.1 fine roots; 0.9 fine vesicular and 3.0 fine tubular pores; 35 percent prominent reddish brown (5YR 4/4), moist, clay films on upper surfaces of peds or rocks and 35 percent distinct pale brown (10YR 6/3) silt coats throughout; 20 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.3, hellige-truog; clear wavy boundary. Lab sample # MU020269
    2Bt5—100 to 127 centimeters (39.4 to 50.0 inches); 50 percent red (2.5YR 4/8) and 50 percent light yellowish brown (10YR 6/4) clay; moderate fine and medium angular blocky parts to weak very fine angular blocky structure; very firm; 0.1 fine roots; 0.9 fine vesicular and tubular pores; 15 percent prominent brown (7.5YR 5/4), moist, silt coats throughout and 35 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds and 35 percent distinct reddish brown (5YR 5/4), moist, clay films on faces of peds; 5 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.1, hellige-truog; clear wavy boundary. Lab sample # MU020270
    2Bt6—127 to 145 centimeters (50.0 to 57.1 inches); 65 percent light yellowish brown (10YR 6/4) and 35 percent red (2.5YR 4/6) gravelly clay; moderate fine and medium angular blocky structure; very firm; 0.1 fine roots; 3.0 fine tubular pores; 15 percent distinct nonintersecting slickensides on faces of peds and 35 percent distinct dark red (10R 3/6), moist, clay films on upper surfaces of peds or rocks and 35 percent prominent yellowish brown (10YR 5/4), moist, silt coats throughout; 15 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog. Lab sample # MU020271