IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1995MO091017M
  • User Pedon ID: 1995MO091017
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9509107
  • 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: 36.9390361
  • Std. Longitude: -91.6967083
  • 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: MJM, SFP, JDP
  • Current Taxonomic Class: Loamy-skeletal over clayey, siliceous Typic Paleudults
  • Current Taxon Kind: series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Poynor
  • PSC - 30 to 100 cm.
  • Classificaton Date - 4/18/2012
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxon Kind - series
  • PSC - 30 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: head slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • 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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—10

    28—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

    8

    —

    —

    349

    —

    180

    1067

    —

    —

    13.3

    23.9

    1.7

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments.
    A—3 to 13 centimeters (1.2 to 5.1 inches); very dark grayish brown (10YR 3/2) rubbed, grayish brown (10YR 5/2) broken face, dry; extremely gravelly silt loam; weak fine granular structure; very friable; 5.0 fine roots throughout; 10.0 fine interstitial pores; 65 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; strongly acid, pH 5.4, hellige-truog; clear smooth boundary. Lab sample # MU020199
    E—13 to 30 centimeters (5.1 to 11.8 inches); light yellowish brown (10YR 6/4) broken face very gravelly silt loam; weak fine granular structure; very friable; 2.0 medium roots throughout and 4.0 fine roots throughout; 4.0 fine and medium tubular pores; 45 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 # MU020200
    Bt1—30 to 43 centimeters (11.8 to 16.9 inches); strong brown (7.5YR 5/6) broken face very gravelly silt loam; weak fine subangular blocky structure; friable; 4.0 medium roots throughout and 3.0 fine roots throughout and 1.0 coarse roots throughout; 4.0 fine tubular pores; 20 percent distinct yellowish red (5YR 5/8), moist, clay films on faces of peds and 20 percent prominent brown (10YR 5/3), moist, silt coats on faces of peds; 50 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.8, hellige-truog; clear wavy boundary. Lab sample # MU020201. patchy - phpvsfiid 143564; patchy - phpvsfiid 143565; patchy - phpvsfiid 143564; patchy - phpvsfiid 143565
    Bt2—43 to 61 centimeters (16.9 to 24.0 inches); strong brown (7.5YR 5/6) broken face extremely gravelly silt loam; weak medium subangular blocky structure; friable; 1.0 medium roots throughout and 1.0 fine roots throughout; 2.0 fine tubular pores; 10 percent prominent brown (10YR 5/3), moist, silt coats on rock fragments and 40 percent distinct yellowish red (5YR 5/8), moist, clay films on faces of peds; 65 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; moderately acid, pH 5.8, hellige-truog; clear wavy boundary. Lab sample # MU020202. discontinuous - phpvsfiid 139667; patchy - phpvsfiid 139668; discontinuous - phpvsfiid 139667; patchy - phpvsfiid 139668
    2Bt3—61 to 91 centimeters (24.0 to 35.8 inches); 50 percent yellowish red (5YR 5/6) broken face and 50 percent red (2.5YR 4/8) broken face silty clay; moderate medium subangular blocky structure; firm; 1.0 medium roots throughout and 1.0 fine roots throughout; 2.0 fine tubular pores; 15 percent prominent brown (10YR 5/3), moist, silt coats on all faces of peds and 60 percent prominent red (2.5YR 4/8), moist, clay films on faces of peds and in pores; 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 # MU020203. discontinuous - phpvsfiid 139669; patchy - phpvsfiid 139670; discontinuous - phpvsfiid 139669; patchy - phpvsfiid 139670
    2Bt4—91 to 117 centimeters (35.8 to 46.1 inches); 50 percent red (2.5YR 4/8) broken face and 40 percent yellowish red (5YR 5/6) broken face and 10 percent light gray (10YR 7/1) broken face silty clay; weak medium subangular blocky structure; very firm; 1.0 fine roots throughout and 1.0 fine roots throughout; 2.0 fine tubular pores; 80 percent prominent red (2.5YR 4/8), moist, clay films on faces of peds and in pores; 10 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; strongly acid, pH 5.4, hellige-truog; abrupt smooth boundary. Lab sample # MU020204. discontinuous - phpvsfiid 139685; discontinuous - phpvsfiid 139685
    2Bt5—117 to 203 centimeters (46.1 to 79.9 inches); 40 percent red (2.5YR 4/8) broken face and 30 percent yellowish red (5YR 5/6) broken face and 30 percent white (10YR 8/1) broken face extremely gravelly clay; weak medium subangular blocky structure; firm; 1.0 fine roots throughout; 2.0 fine tubular pores; 80 percent prominent red (2.5YR 4/8), moist, clay films on faces of peds and in pores; 80 percent by volume subangular 2-39-75 millimeter mixed fragments; noneffervescent, by hcl, unspecified; strongly acid, pH 5.4, hellige-truog. Lab sample # MU020205. continuous - phpvsfiid 139686; continuous - phpvsfiid 139686