IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1995MO091016M
  • User Pedon ID: 1995MO091016
  • Vegetation Plot ID: 1995MO091016
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9509106
  • Print Date: 5/30/2024

    • 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: 36.9381500
  • Std. Longitude: -91.6980722
  • Datum: WGS84
  • Map Unit: 73073—Scholten-Poynor complex, 8 to 15 percent slopes
  • State: Missouri
  • County: MO091—Howell
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO091—Howell County, Missouri

    • PEDON

  • Describers Name: SFP, MJM, JDP
  • Current Taxonomic Class: Loamy-skeletal over clayey, siliceous Typic Hapludults
  • Current Taxon Kind: taxadjunct
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Poynor
  • PSC - 20 to 100 cm.
  • Classificaton Date - 4/18/2012
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxon Kind - variant
  • PSC - 20 to 100 cm.
  • Classificaton Date - 3/9/1995
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum and/or slope alluvium
  • Landscape: hills
  • Landform: hill
  • Geomorphic Component Hills: nose slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/9/1995 (actual site observation date)
  • Air Photo ID: 2227-212
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    QUVE

    Quercus velutina

    black oak

    —

    —

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

    ochric epipedon

    argillic horizon

    0—5

    5—203

    —-

    —-
    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

    7

    —

    —

    351

    —

    20

    1067

    —

    —

    13.3

    23.9

    1.7

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 5 centimeters (0.0 to 2.0 inches); slightly decomposed plant material; fragments. Lab sample # MU64420
    Ap—5 to 10 centimeters (2.0 to 3.9 inches); brown (10YR 4/3) rubbed, pale brown (10YR 6/3) broken face, dry; very gravelly silt loam; weak fine granular structure; very friable; 8.0 fine and medium roots throughout and 2.0 coarse roots throughout; 20.0 very fine interstitial pores; 20 percent distinct black (10YR 2/1), moist, organic stains throughout; 40 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 6.0, hellige-truog; clear smooth boundary. Lab sample # MU052917. patchy - phpvsfiid 139671; patchy - phpvsfiid 139671
    BE—10 to 20 centimeters (3.9 to 7.9 inches); 75 percent brown (7.5YR 4/4) broken face and 25 percent strong brown (7.5YR 5/6) broken face gravelly silt loam; moderate medium subangular blocky structure; very friable; 8.0 fine and medium roots throughout and 2.0 coarse roots throughout; 10.0 very fine interstitial and tubular pores; 5 percent distinct strong brown (7.5YR 5/6), moist, clay films on faces of peds and in pores and 10 percent prominent black (10YR 2/1), moist, organic stains throughout; 20 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 6.0, hellige-truog; clear smooth boundary. Lab sample # MU052918. patchy - phpvsfiid 139672; patchy - phpvsfiid 139673; patchy - phpvsfiid 139672; patchy - phpvsfiid 139673
    Bt1—20 to 41 centimeters (7.9 to 16.1 inches); 75 percent strong brown (7.5YR 5/6) broken face and 25 percent brown (7.5YR 4/4) broken face very gravelly silt loam; moderate medium subangular blocky structure; friable; 5.0 fine and medium roots throughout and 1.0 coarse roots throughout; 20.0 very fine tubular pores; 5 percent prominent black (10YR 2/1), moist, organic stains on faces of peds and 10 percent distinct strong brown (7.5YR 5/6), moist, clay films on faces of peds and in pores; 5 percent by volume subangular 75-162-250 millimeter mixed fragments and 30 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 6.0, hellige-truog; clear smooth boundary. Lab sample # MU052919. patchy - phpvsfiid 139674; patchy - phpvsfiid 139675; patchy - phpvsfiid 139674; patchy - phpvsfiid 139675
    Bt2—41 to 64 centimeters (16.1 to 25.2 inches); strong brown (7.5YR 5/6) broken face extremely cobbly silt loam; strong medium subangular blocky structure; friable; 2.0 fine and medium roots throughout; 20.0 very fine tubular pores; 15 percent faint yellowish red (5YR 5/6), moist, clay films on faces of peds and in pores; 30 percent by volume subangular 2-39-75 millimeter mixed fragments and 30 percent by volume subangular 75-162-250 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.8, hellige-truog; clear wavy boundary. Lab sample # MU052920. discontinuous - phpvsfiid 139676; discontinuous - phpvsfiid 139676
    Bt3—64 to 84 centimeters (25.2 to 33.1 inches); 80 percent brown (7.5YR 5/4) broken face and 20 percent red (2.5YR 4/8) broken face very gravelly silt loam; strong fine subangular blocky structure; friable; 1.0 fine roots throughout; 20.0 very fine discontinuous tubular pores; 10 percent prominent brown (10YR 4/3), moist, silt coats on faces of peds and 20 percent prominent red (2.5YR 4/8), moist, clay films on faces of peds and in pores; 5 percent by volume subangular 75-162-250 millimeter mixed fragments and 30 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.6, hellige-truog; clear smooth boundary. Lab sample # MU052921. discontinuous - phpvsfiid 139677; discontinuous - phpvsfiid 139678; discontinuous - phpvsfiid 139677; discontinuous - phpvsfiid 139678
    2Bt4—84 to 112 centimeters (33.1 to 44.1 inches); 50 percent yellowish red (5YR 5/6) broken face and 50 percent red (2.5YR 4/8) broken face gravelly silty clay; strong fine subangular blocky structure; firm; 1.0 fine roots throughout; 20.0 very fine discontinuous tubular pores; 10 percent prominent brown (10YR 5/3), moist, silt coats on faces of peds and 30 percent prominent red (2.5YR 4/8), moist, clay films on faces of peds and in pores; 15 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.6, hellige-truog; clear smooth boundary. Lab sample # MU052922. continuous - phpvsfiid 139679; discontinuous - phpvsfiid 139680; continuous - phpvsfiid 139679; discontinuous - phpvsfiid 139680
    2Bt5—112 to 137 centimeters (44.1 to 53.9 inches); 75 percent red (2.5YR 4/8) broken face and 25 percent yellowish red (5YR 5/6) broken face gravelly clay; strong fine subangular blocky structure; firm; 1.0 fine roots throughout; 20.0 very fine discontinuous tubular pores; 5 percent prominent light gray (10YR 7/1), moist, clay films on vertical faces of peds and 35 percent prominent red (2.5YR 4/8), moist, clay films on faces of peds and in pores; 5 percent by volume subangular 75-162-250 millimeter mixed fragments and 20 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; strongly acid, pH 5.4, hellige-truog; clear wavy boundary. Lab sample # MU052923. continuous - phpvsfiid 139681; continuous - phpvsfiid 139682; continuous - phpvsfiid 139681; continuous - phpvsfiid 139682
    2Bt6—137 to 203 centimeters (53.9 to 79.9 inches); 35 percent red (2.5YR 4/8) broken face and 35 percent yellowish red (5YR 5/6) broken face and 30 percent light gray (10YR 7/2) broken face extremely gravelly clay loam; strong fine angular blocky structure; firm; 10.0 very fine discontinuous tubular pores; 25 percent prominent red (2.5YR 4/8), moist, clay films on faces of peds and in pores and 25 percent prominent light gray (10YR 7/1), moist, clay films on vertical faces of peds; 20 percent by volume subangular 75-162-250 millimeter mixed fragments and 60 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; strongly acid, pH 5.4, hellige-truog. Lab sample # MU052924. discontinuous - phpvsfiid 139683; continuous - phpvsfiid 139684; discontinuous - phpvsfiid 139683; continuous - phpvsfiid 139684