IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1991MO123002M
  • User Pedon ID: 1991MO123002M
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9112302
  • NCSS Pedon Lab Data NASIS Record ID - 27947
  • 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: 37.5817490
  • Std. Longitude: -90.3299179
  • Datum: WGS84
  • Township: T33N
  • Range: R6E
  • Section: 1
  • PLSS Details: 4100 feet N and 2425 feet E of the SW corner
  • Location Description: 4100 ft. N and 2425 ft. E of the SW corner of sec. 1, T. 33 N., R. 6 E.
  • Map Unit: 29C—Viraton silt loam, 2 to 5 percent slopes74648—Aslinger silt loam, 3 to 8 percent slopes
  • State: Missouri
  • County: MO123—Madison
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO123—Madison County, Missouri
  • 7.5 Minute USGS Quad: 37090-E3—Fredericktown, Missouri

    • PEDON

  • Describers Name: KLB, MLC, CGM, RDC
  • Current Taxonomic Class: Loamy-skeletal over clayey, mixed, active, mesic Typic Paleudults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: map unit inclusion
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Poynor
  • PSC - 13 to 100 cm.
  • Classificaton Date - 12/10/2010
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxonomic Class - Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 13 to 100 cm.
  • Classificaton Date - 5/22/1991
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 43 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: loess over slope alluvium
  • Landscape: basin
  • Landform: stream terrace
  • Runoff: medium
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/22/1991 (actual site observation date)
  • Air Photo ID: C-3
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous 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

    0—13

    13—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

    8

    —

    —

    270

    —

    70

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 13 centimeters (0.0 to 5.1 inches); brown (10YR 4/3) and yellowish brown (10YR 5/6), pale brown (10YR 6/3), dry; silt loam; moderate fine granular structure; friable; 10.0 fine and medium roots; fragments; moderately acid, pH 5.8, hellige-truog; abrupt wavy boundary. Lab sample # MU019847. Some mixing from below horizon.
    Bt1—13 to 25 centimeters (5.1 to 9.8 inches); yellowish brown (10YR 5/6) and dark grayish brown (10YR 4/2) exterior silt loam; moderate very fine subangular blocky structure; friable; 3.0 fine and medium roots; 15 percent faint clay films; 1 percent by volume rounded 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.1, hellige-truog; clear wavy boundary. Lab sample # MU019848
    2Bt2—25 to 48 centimeters (9.8 to 18.9 inches); strong brown (7.5YR 5/6) gravelly silty clay loam; 1 percent pale brown (10YR 6/3) coarse prominent mottles; moderate fine subangular blocky structure; firm; 3.0 fine and medium roots; 35 percent distinct clay films; 1 percent by volume rounded 75-162-250 millimeter unspecified fragments and 30 percent by volume rounded 2-39-75 millimeter unspecified fragments; very strongly acid, pH 5.0, hellige-truog; gradual wavy boundary. Lab sample # MU019849
    2Bt3—48 to 74 centimeters (18.9 to 29.1 inches); strong brown (7.5YR 5/6) very gravelly silty clay loam; light yellowish brown (10YR 6/4) prominent and red (2.5YR 4/8) prominent mottles; moderate fine subangular blocky structure; firm; 0.5 very fine roots; 75 percent distinct clay films; 55 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU019850
    3Bt4—74 to 104 centimeters (29.1 to 40.9 inches); red (2.5YR 4/6) clay; 10 percent strong brown (7.5YR 5/6) medium prominent mottles; moderate very fine and fine subangular blocky structure; friable; 0.5 very fine roots; 75 percent prominent clay films; 3 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.5, hellige-truog; diffuse wavy boundary. Lab sample # MU019851
    3Bt5—104 to 152 centimeters (40.9 to 59.8 inches); red (2.5YR 4/8) clay; 10 percent reddish yellow (7.5YR 6/6) medium and coarse prominent mottles; moderate very fine subangular blocky structure; firm; 75 percent prominent clay films; 1 percent fine iron-manganese masses; 1 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.7, hellige-truog. Lab sample # MU019852