IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1991MO123027M
  • User Pedon ID: 1991MO123027M
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9112327
  • NCSS Pedon Lab Data NASIS Record ID - 27949
  • Print Date: 11/26/2024

    • 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: 37.4997215
  • Std. Longitude: -90.1529160
  • Datum: WGS84
  • Township: T33N
  • Range: R8E
  • Section: 34
  • PLSS Details: 1100 feet N and 2200 feet E of the SW corner
  • Location Description: 1,100 feet north and 2,200 feet east of the southwest corner of sec. 34, T. 33 N., R. 8 E.
  • Map Unit: 73139—Poynor-Clarksville-Scholten complex, 8 to 15 percent slopes, stony13D—Clarksville gravelly silt loam, 5 to 14 percent slopes
  • State: Missouri
  • County: MO123—Madison
  • MLRA: 116A—Ozark Highland
  • MLRA Soil Survey Area: NC-SPM—Springfield, Missouri
  • Non-MLRA Soil Survey Area: MO123—Madison County, Missouri
  • 7.5 Minute USGS Quad: 37090-D2—Marquand, Missouri

    • PEDON

  • Describers Name: RDC, KEB, MLC AND CGM
  • Current Taxonomic Class: Loamy-skeletal over clayey, mixed, active, mesic Typic Paleudults
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Poynor
  • PSC - 26 to 100 cm.
  • Classificaton Date - 4/1/2011
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxonomic Class - Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 26 to 100 cm.
  • Classificaton Date - 10/2/1991
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 42 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: slope alluvium over residuum
  • Landscape: plateau
  • Landform: ridge
  • Runoff: high
  • Drainage Class: well
  • Surface Fragments: 2.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/2/1991 (actual site observation date)
  • Air Photo ID: D-5
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • 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—23

    23—152

    —-

    —-
    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

    9

    —

    —

    258

    —

    260

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    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); yellowish brown (10YR 5/4), pale brown (10YR 6/3), dry; gravelly silt loam; moderate very fine granular structure; very friable; 10.0 very fine to medium roots; 23 percent by volume 2-39-75 millimeter unspecified fragments; extremely acid, pH 4.4, hellige-truog; clear wavy boundary. Lab sample # MU019856
    E—13 to 26 centimeters (5.1 to 10.2 inches); yellowish brown (10YR 5/6), very pale brown (10YR 7/4), dry; gravelly silt loam; weak thin platy parts to moderate very fine granular structure; very friable; 10.0 fine and medium roots; 35 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.5, hellige-truog; clear wavy boundary. Lab sample # MU019857
    Bt1—26 to 46 centimeters (10.2 to 18.1 inches); strong brown (7.5YR 4/6) very gravelly silty clay loam; moderate very fine subangular blocky structure; friable; 10.0 fine and medium roots; 4 percent silt coats on rock fragments and 35 percent distinct clay films on faces of peds; 57 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.6, hellige-truog; clear wavy boundary. Lab sample # MU019858
    Bt2—46 to 67 centimeters (18.1 to 26.4 inches); light yellowish brown (10YR 6/4) and brown (7.5YR 4/4) extremely gravelly loam; moderate very fine subangular blocky structure; very firm; 0.5 medium roots and 5.0 fine roots; 35 percent silt coats on rock fragments and 35 percent prominent clay films on faces of peds; 67 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.7, hellige-truog; clear wavy boundary. Lab sample # MU019859
    Bt3—67 to 89 centimeters (26.4 to 35.0 inches); yellowish red (5YR 5/6) and reddish yellow (7.5YR 6/6) gravelly loam; moderate very fine subangular blocky structure; very firm; 0.5 fine and medium roots; 35 percent distinct clay films on faces of peds; 24 percent by volume 2-39-75 millimeter unspecified fragments; 30 BT; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU019860
    2Bt4—89 to 125 centimeters (35.0 to 49.2 inches); dark red (2.5YR 3/6) gravelly clay; 1 percent brown (7.5YR 5/4) fine prominent and 10 percent yellow (10YR 8/6) fine prominent mottles; moderate very fine and fine subangular blocky structure; firm; 0.5 fine roots; 75 percent distinct clay films on faces of peds; 1 percent fine and medium noncoherent cemented pinkish gray (7.5YR 7/2) iron depletions; 16 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 5.0, hellige-truog; clear irregular boundary. Lab sample # MU019861
    2Bt5—125 to 155 centimeters (49.2 to 61.0 inches); dark red (2.5YR 3/6) and brownish yellow (10YR 6/6) very cobbly clay; moderate very fine and fine subangular blocky structure; firm; 0.5 fine and medium roots; 75 percent prominent clay films on faces of peds; clay bodies and white (10YR 8/1) clay bodies; 6 percent by volume 2-39-75 millimeter unspecified fragments and 35 percent by volume 75-162-250 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog. Lab sample # MU019862