IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1995MO091019M
  • User Pedon ID: 1995MO091019
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9509109
  • Print Date: 11/23/2024

    • 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: 36.9531139
  • Std. Longitude: -91.7399000
  • Datum: WGS84
  • Map Unit: 73221—Poynor very gravelly silt loam, karst, 3 to 35 percent slopes, stony
  • State: Missouri
  • County: MO091—Howell
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO091—Howell County, Missouri
  • 7.5 Minute USGS Quad: 36091-H6—Mountain View, Missouri

    • PEDON

  • Describers Name: MJM, SFP
  • Current Taxonomic Class: Loamy-skeletal over clayey, siliceous Typic Paleudults
  • Current Taxon Kind: taxadjunct
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Poynor
  • PSC - 25 to 100 cm.
  • Classificaton Date - 4/18/2012
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxon Kind - variant
  • PSC - 25 to 100 cm.
  • Classificaton Date - 3/10/1995
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: slope alluvium derived from mixed and/or residuum weathered from mixed
  • Landscape: karstland
  • Landform: sinkhole
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/10/1995 (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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—10

    10—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

    10

    —

    —

    338

    —

    0

    1067

    —

    —

    13.3

    23.9

    1.7

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 10 centimeters (0.0 to 3.9 inches); brown (10YR 4/3) rubbed, brown (10YR 5/3) broken face, dry; extremely gravelly silt loam; weak very fine granular structure; very friable; 8.0 fine and medium roots throughout; 5.0 medium interstitial and 20.0 fine interstitial 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 # MU052925
    Bt1—10 to 25 centimeters (3.9 to 9.8 inches); dark yellowish brown (10YR 4/4) broken face very gravelly silt loam; weak fine subangular blocky structure; friable; 8.0 fine and medium roots throughout and 1.0 coarse roots throughout; 5.0 fine discontinuous tubular pores; 5 percent prominent strong brown (7.5YR 5/6), moist, clay films on faces of peds and 5 percent faint brown (10YR 5/3), moist, silt coats on faces of peds; 40 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.9, hellige-truog; clear smooth boundary. Lab sample # MU052926. patchy - phpvsfiid 139692; patchy - phpvsfiid 139693; patchy - phpvsfiid 139692; patchy - phpvsfiid 139693
    Bt2—25 to 43 centimeters (9.8 to 16.9 inches); strong brown (7.5YR 5/6) broken face very gravelly silt loam; weak fine subangular blocky structure; friable; 8.0 fine and medium roots throughout; 5.0 fine discontinuous tubular pores; 20 percent prominent reddish yellow (5YR 6/6), moist, clay films on faces of peds and 20 percent prominent brown (10YR 5/3), moist, silt coats on faces of peds; 5 percent by volume subangular 75-162-250 millimeter mixed fragments and 50 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.8, hellige-truog; clear smooth boundary. Lab sample # MU052927. discontinuous - phpvsfiid 139694; patchy - phpvsfiid 139695; discontinuous - phpvsfiid 139694; patchy - phpvsfiid 139695
    2Bt3—43 to 66 centimeters (16.9 to 26.0 inches); 60 percent red (2.5YR 4/6) broken face and 40 percent reddish yellow (5YR 6/6) broken face gravelly silty clay loam; moderate medium subangular blocky structure; firm; 3.0 fine and medium roots throughout; 3.0 fine discontinuous tubular pores; 10 percent prominent brown (10YR 5/3), moist, silt coats on vertical faces of peds and 40 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 15 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.8, hellige-truog; abrupt smooth boundary. Lab sample # MU052928. continuous - phpvsfiid 139696; patchy - phpvsfiid 139697; continuous - phpvsfiid 139696; patchy - phpvsfiid 139697
    2Bt4—66 to 91 centimeters (26.0 to 35.8 inches); 75 percent red (2.5YR 4/6) broken face and 25 percent reddish yellow (5YR 6/6) broken face gravelly silty clay loam; moderate medium subangular blocky structure; firm; 3.0 fine and medium roots throughout; 3.0 fine discontinuous tubular pores; 10 percent prominent brown (10YR 5/3), moist, silt coats on vertical faces of peds and 40 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 wavy boundary. Lab sample # MU052929. continuous - phpvsfiid 139698; patchy - phpvsfiid 139699; continuous - phpvsfiid 139698; patchy - phpvsfiid 139699
    2Bt5—91 to 147 centimeters (35.8 to 57.9 inches); red (2.5YR 4/6) broken face clay; moderate medium angular blocky parts to moderate fine subangular blocky structure; firm; 2.0 fine roots throughout; 2.0 fine discontinuous tubular pores; 80 percent prominent dark red (10R 3/6), moist, clay films on faces of peds and in pores; 2 percent by volume subrounded 2-39-75 millimeter mixed fragments and 5 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.6, hellige-truog; clear wavy boundary. Lab sample # MU052930. continuous - phpvsfiid 139700; continuous - phpvsfiid 139700
    2Bt6—147 to 203 centimeters (57.9 to 79.9 inches); 40 percent strong brown (7.5YR 5/6) broken face and 30 percent yellowish red (5YR 5/6) broken face and 30 percent red (2.5YR 4/6) broken face clay; strong fine angular blocky structure; very firm; 1.0 fine roots throughout; 2.0 fine discontinuous tubular pores; 80 percent prominent dark red (10R 3/6), moist, clay films on faces of peds and in pores; 2 percent by volume subrounded 2-39-75 millimeter mixed fragments and 5 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.6, hellige-truog. Lab sample # MU052931. continuous - phpvsfiid 139701; continuous - phpvsfiid 139701