IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1996MO067077M
  • User Pedon ID: 1996MO067077
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9606707
  • 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: 36.8093333
  • Std. Longitude: -92.4171417
  • Datum: WGS84
  • Township: T25N
  • Range: R13W
  • Section: 31
  • PLSS Details: 1050 feet E and 1200 feet S of the NW corner
  • Location Description: 1050 feet east and 1200 feet south of the NW corner of section 31, T25N, R13W. On the Ashbaugh farm near Rockbridge on Hwy N.
  • Map Unit: 73236—Scholten-Poynor complex, 3 to 8 percent slopes
  • State: Missouri
  • County: MO067—Douglas
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO067—Douglas County, Missouri

    • PEDON

  • Current Taxonomic Class: Loamy-skeletal over clayey, kaolinitic Typic Paleudults
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • 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 - series
  • PSC - 25 to 100 cm.
  • Classificaton Date - 8/23/1996
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/23/1996 (actual site observation date)
  • Air Photo ID: 2252-201
  • 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

    3—25

    25—191

    —-

    —-
    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

    —

    —

    308

    —

    60

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments; abrupt smooth boundary.
    A—3 to 8 centimeters (1.2 to 3.1 inches); very dark grayish brown (10YR 3/2), light brownish gray (10YR 6/2), dry; very gravelly fine sandy loam; moderate fine granular structure; friable; 8.0 fine to coarse roots throughout; 50 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; abrupt smooth boundary. Lab sample # MU020287
    E—8 to 25 centimeters (3.1 to 9.8 inches); brown (10YR 4/3), very pale brown (10YR 7/3), dry; very gravelly loam; moderate fine granular structure; friable; 8.0 very fine and fine roots and 3.0 medium and coarse roots throughout; 55 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; abrupt smooth boundary. Lab sample # MU020288
    Bt1—25 to 48 centimeters (9.8 to 18.9 inches); 70 percent light yellowish brown (10YR 6/4) and 30 percent yellowish red (5YR 5/6) gravelly loam; moderate very fine and fine subangular blocky structure; friable; 8.0 very fine and fine roots and 3.0 medium and coarse roots throughout; 10 percent faint clay films on faces of peds; 35 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU020289. patchy - phpvsfiid 128092; patchy - phpvsfiid 128092
    2Bt2—48 to 69 centimeters (18.9 to 27.2 inches); yellowish red (5YR 4/6) cobbly clay; moderate fine subangular blocky structure; firm; 8.0 very fine and fine roots and 0.5 medium and coarse roots throughout; 25 percent prominent light yellowish brown (10YR 6/4) silt coats on faces of peds and 40 percent distinct yellowish red (5YR 4/6) clay films on faces of peds; 10 percent by volume subangular 75-162-250 millimeter limestone, cherty fragments and 15 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU020290. Silt coats with a color of 10YR6/4 are in the upper part of this horizon.; discontinuous - phpvsfiid 128093; discontinuous - phpvsfiid 128094; discontinuous - phpvsfiid 128093; discontinuous - phpvsfiid 128094
    2Bt3—69 to 97 centimeters (27.2 to 38.2 inches); 70 percent red (2.5YR 4/6) and 30 percent yellowish red (5YR 4/6) clay; moderate fine subangular blocky structure; firm; 3.0 very fine and fine roots and 0.5 medium and coarse roots throughout; 60 percent distinct yellowish red (5YR 4/6) clay films on faces of peds; fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU020291. discontinuous - phpvsfiid 128095; discontinuous - phpvsfiid 128095
    2Bt4—97 to 117 centimeters (38.2 to 46.1 inches); 60 percent red (2.5YR 4/6) and 25 percent yellowish red (5YR 5/6) and 10 percent yellowish brown (10YR 5/6) clay; moderate fine angular blocky, and moderate fine subangular blocky structure; firm; 3.0 very fine and fine roots and 0.5 medium and coarse roots throughout; 10 percent distinct reddish brown (5YR 4/4) clay films on faces of peds and 55 percent distinct yellowish red (5YR 5/6) clay films on faces of peds; fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # MU020292. discontinuous - phpvsfiid 128096; discontinuous - phpvsfiid 128097; discontinuous - phpvsfiid 128096; discontinuous - phpvsfiid 128097
    2Bt5—117 to 145 centimeters (46.1 to 57.1 inches); 55 percent yellowish red (5YR 4/6) and 20 percent brownish yellow (10YR 6/6) and 15 percent yellowish brown (10YR 5/6) and 5 percent light gray (10YR 7/1) clay; moderate fine subangular blocky structure; firm; 0.5 very fine and fine roots throughout; 30 percent distinct yellowish red (5YR 5/6) clay films on faces of peds and 40 percent prominent reddish brown (5YR 4/4) clay films on faces of peds; 3 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU020293. discontinuous - phpvsfiid 128098; discontinuous - phpvsfiid 128099; discontinuous - phpvsfiid 128098; discontinuous - phpvsfiid 128099
    2Bt6—145 to 163 centimeters (57.1 to 64.2 inches); 45 percent reddish yellow (7.5YR 6/8) and 40 percent yellowish red (5YR 4/6) and 15 percent yellow (10YR 7/6) gravelly clay; moderate fine subangular blocky structure; firm; 0.5 very fine and fine roots throughout; 30 percent distinct yellowish red (5YR 4/6) clay films on faces of peds and 35 percent prominent reddish brown (5YR 4/4) clay films on faces of peds; 15 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; gradual wavy boundary. Lab sample # MU020294. discontinuous - phpvsfiid 127838; discontinuous - phpvsfiid 127839; discontinuous - phpvsfiid 127838; discontinuous - phpvsfiid 127839
    2Bt7—163 to 191 centimeters (64.2 to 75.2 inches); 45 percent yellowish brown (10YR 5/8) and 40 percent brownish yellow (10YR 6/8) and 5 percent light gray (10YR 7/2) gravelly clay; moderate fine subangular blocky structure; firm; 0.5 very fine and fine roots throughout; 15 percent prominent reddish brown (5YR 4/4) clay films on faces of peds and 35 percent prominent yellowish red (5YR 4/6) clay films on faces of peds; 30 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # MU020295. Banded chert at 75 inches.; discontinuous - phpvsfiid 127840; discontinuous - phpvsfiid 127841; discontinuous - phpvsfiid 127840; discontinuous - phpvsfiid 127841