IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1994MO223041M
  • User Pedon ID: 1994MO223041
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9422341
  • Print Date: 5/19/2024

    • 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: 37.1655540
  • Std. Longitude: -90.2722244
  • Datum: WGS84
  • Township: T29N
  • Range: R7E
  • Section: 22
  • PLSS Details: 1900 feet N and 1100 feet E of the SW corner
  • Location Description: 1,900 feet north and 1,100 feet east of the southwest corner of sec. 22, T. 29 N., R. 7 E.
  • Map Unit: 14D—Poynor-Clarksville-Scholten complex, 8 to 15 percent slopes, stony73139—Poynor-Clarksville-Scholten complex, 8 to 15 percent slopes, stony
  • State: Missouri
  • County: MO223—Wayne
  • MLRA: 116A—Ozark Highland
  • MLRA Soil Survey Area: NC-SPM—Springfield, Missouri
  • Non-MLRA Soil Survey Area: MO223—Wayne County, Missouri
  • 7.5 Minute USGS Quad: 37090-B3—Lowndes, Missouri

    • PEDON

  • Describers Name: RT, DH
  • Current Taxonomic Class: Loamy-skeletal over clayey, siliceous, subactive, 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 - 30 to 100 cm.
  • Classificaton Date - 3/28/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxonomic Class - Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 30 to 100 cm.
  • Classificaton Date - 4/20/1994
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 29 Cation Exc. to Clay x100


    • SITE

  • Parent Material: slope alluvium derived from cherty limestone over residuum weathered from cherty limestone
  • Landscape: plateau
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/20/1994 (actual site observation date)
  • Air Photo ID: 2207-87
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    strongly contrasting textural stratification

    noncoherent

    58 -

    —
    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    strongly contrasting particle size class

    0—30

    30—203

    58—

    —-

    —-

    —-
    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

    —

    —

    197

    —

    350

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 2 centimeters (0.0 to 0.8 inches); slightly decomposed plant material; fragments; abrupt wavy boundary. Lab sample # MU051374
    A—2 to 8 centimeters (0.8 to 3.1 inches); dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; gravelly silt loam; moderate fine granular structure; very friable; 6.0 very fine and fine roots and 4.0 medium roots and 0.5 coarse roots; 1 percent by volume 250-425-600 millimeter unspecified fragments and 5 percent by volume 75-162-250 millimeter unspecified fragments and 25 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.4, hellige-truog; clear smooth boundary. Lab sample # MU64512
    E—8 to 30 centimeters (3.1 to 11.8 inches); yellowish brown (10YR 5/4), very pale brown (10YR 7/3), dry; very gravelly silt loam; moderate fine subangular blocky structure; very friable; 4.0 very fine to medium roots and 0.5 coarse roots; 5 percent by volume 75-162-250 millimeter unspecified fragments and 30 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # MU051375
    Bt1—30 to 58 centimeters (11.8 to 22.8 inches); strong brown (7.5YR 4/6) extremely gravelly clay loam; moderate very fine and fine angular blocky structure; firm; moderate permeability; 4.0 very fine and fine roots and 0.5 medium and coarse roots; 25 percent distinct clay films on faces of peds; 5 percent by volume 75-162-250 millimeter unspecified fragments and 60 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU051376. discontinuous - phpvsfiid 133401; discontinuous - phpvsfiid 133401
    2Bt2—58 to 102 centimeters (22.8 to 40.2 inches); reddish brown (2.5YR 4/4) and yellowish brown (10YR 5/4) gravelly clay; weak medium prismatic parts to moderate fine angular blocky structure; very firm; 0.5 very fine to coarse roots; 25 percent distinct clay films on faces of peds; 2 percent by volume 75-162-250 millimeter unspecified fragments and 18 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU051377. patchy - phpvsfiid 133402; patchy - phpvsfiid 133402
    2Bt3—102 to 152 centimeters (40.2 to 59.8 inches); reddish brown (2.5YR 4/4) and yellowish brown (10YR 5/4) stony clay; 1 percent light brownish gray (10YR 6/2) medium and coarse prominent mottles; weak medium prismatic parts to moderate very fine and fine angular blocky structure; very firm; moderately slow permeability; 0.5 fine roots and 0.5 coarse roots; 25 percent distinct clay films on faces of peds; 3 percent by volume 75-162-250 millimeter unspecified fragments and 5 percent by volume 250-425-600 millimeter unspecified fragments and 12 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.1, hellige-truog; gradual wavy boundary. Lab sample # MU051378. patchy - phpvsfiid 133403; patchy - phpvsfiid 133403
    2Bt4—152 to 203 centimeters (59.8 to 79.9 inches); yellowish brown (10YR 5/4) and reddish brown (2.5YR 4/4) very gravelly clay; 15 percent light brownish gray (10YR 6/2) medium and coarse prominent mottles; moderate fine and medium angular blocky structure; very firm; 0.5 fine roots and 0.5 coarse roots; 25 percent distinct clay films on faces of peds; 35 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog. Lab sample # MU051379. Gravel is highly weathered.; patchy - phpvsfiid 133404; patchy - phpvsfiid 133404