IDENTIFIERS

  • Current Taxon Name (Soil Name): Poynor
  • OSD
  • Series Extent
  • User Site ID: 1992MO203007M
  • User Pedon ID: 1992MO203007M
  • User Site Association ID: 8687
  • Transect:
  • User Transect ID - shannon-Dark
  • Transect Stop Number - 8
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9261307
  • NCSS Pedon Lab Data NASIS Record ID - 31352
  • 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: 37.2208250
  • Std. Longitude: -91.3430611
  • Datum: WGS84
  • Township: T29N
  • Range: R4W
  • Section: 1
  • PLSS Details: 100 feet E and 5700 feet N of the SW corner
  • Location Description: 100 feet east and 5,700 feet north of the southwest corner of sec. 1, T. 29 N., R. 4 W.
  • State: Missouri
  • County: MO203—Shannon
  • MLRA: 116A—Ozark Highland
  • MLRA Soil Survey Area: NC-SPM—Springfield, Missouri
  • Non-MLRA Soil Survey Area: MO203—Shannon County, Missouri
  • 7.5 Minute USGS Quad: 37091-B3—Eminence, Missouri

    • PEDON

  • Describers Name: JDC, SVV, JB
  • Current Taxonomic Class: Loamy-skeletal over clayey, siliceous, semiactive, 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 - 20 to 100 cm.
  • Classificaton Date - 3/28/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxonomic Class - Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 20 to 100 cm.
  • Classificaton Date - 8/11/1992
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 3
  • Field Measured Properties: 20 Strongly contrasting textural stratification (depth in inches) and 33 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: residuum and/or slope alluvium
  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: nose slope
  • Hill Slope Profile: summit
  • Slope Position: on a slope
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Drainage Class: well
  • Surface Fragments: 2.50 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/11/1992 (actual site observation date)
  • Air Photo ID: 14
  • 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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    strongly contrasting particle size class

    2—20

    20—224

    51—

    —-

    —-

    —-
    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

    6

    —

    —

    305

    —

    180

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 2 centimeters (0.0 to 0.8 inches); slightly decomposed plant material; fragments; abrupt smooth boundary. Lab sample # MU047148
    A—2 to 8 centimeters (0.8 to 3.1 inches); dark grayish brown (10YR 4/2) gravelly silt loam; moderate fine granular structure; very friable; 7.0 fine roots; 7.0 fine interstitial and tubular pores; 33 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; abrupt smooth boundary. Lab sample # MU64707
    E—8 to 20 centimeters (3.1 to 7.9 inches); light yellowish brown (10YR 6/4) very gravelly silt loam; moderate fine subangular blocky structure; friable; 3.0 fine roots; 7.0 fine tubular pores; 3 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 40 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU047149
    Bt1—20 to 51 centimeters (7.9 to 20.1 inches); yellowish brown (10YR 5/6) very gravelly silt loam; moderate medium subangular blocky structure; firm; 1.0 fine roots; 7.0 fine tubular pores; 10 percent faint yellowish brown (10YR 5/4), moist, clay films on faces of peds and 75 percent distinct light yellowish brown (10YR 6/4), moist, silt coats on faces of peds; 10 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 45 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.6, hellige-truog; gradual wavy boundary. Lab sample # MU047150
    2Bt2—51 to 71 centimeters (20.1 to 28.0 inches); yellowish red (5YR 5/6) gravelly clay; moderate medium subangular blocky structure; firm; 0.9 fine roots; 7.0 fine tubular pores; 30 percent distinct red (2.5YR 5/6), moist, clay films on faces of peds and 30 percent distinct light brown (7.5YR 6/4), moist, silt coats on faces of peds; 15 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU047151
    2Bt31—71 to 112 centimeters (28.0 to 44.1 inches); 34 percent dark red (2.5YR 3/6) and 33 percent yellowish red (5YR 5/6) and 33 percent gray (10YR 6/1) gravelly clay; strong fine angular blocky structure; very firm; 0.9 fine roots; 0.9 fine tubular pores; 20 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU047152
    2Bt32—112 to 160 centimeters (44.1 to 63.0 inches); 34 percent dark red (2.5YR 3/6) and 33 percent yellowish red (5YR 5/6) and 33 percent gray (10YR 6/1) gravelly clay; strong fine angular blocky structure; very firm; 0.9 fine roots; 0.9 fine tubular pores; 20 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.6, hellige-truog. Lab sample # MU64708
    2Bt41—160 to 191 centimeters (63.0 to 75.2 inches); very gravelly clay; strong fine angular blocky structure; very firm; 0.9 fine roots; 0.9 fine tubular pores; 2 percent by volume nonflat indurated 250-425-600 millimeter chert fragments and 10 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 45 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.5, hellige-truog. Lab sample # MU047153. Probed in the bottom of soil pit to a depth of about 136 inches, red clay.
    2Bt42—191 to 224 centimeters (75.2 to 88.2 inches); very gravelly clay; 2 percent by volume nonflat indurated 250-425-600 millimeter chert fragments and 10 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 45 percent by volume nonflat indurated 2-40-75 millimeter chert fragments. Lab sample # MU047154