IDENTIFIERS

  • Current Taxon Name (Soil Name): Higdon
  • OSD
  • Series Extent
  • User Site ID: 1990MO123024M
  • User Pedon ID: 1990MO123024M
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9012324
  • NCSS Pedon Lab Data NASIS Record ID - 31405
  • Print Date: 12/17/2024

    • 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: 37.5991669
  • Std. Longitude: -90.2883072
  • Datum: WGS84
  • Township: T34N
  • Range: R7E
  • Section: 32
  • PLSS Details: 4750 feet S and 2100 feet E of the NW corner
  • Location Description: 4,750 feet south and 2,100 feet east of the northwest corner of sec. 32, T. 34 N., R. 7 E.
  • Map Unit: 26B—Freeburg silt loam, 1 to 5 percent slopes74645—Higdon silt loam, 1 to 3 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: RDC, MLC
  • Current Taxonomic Class: Fine-silty, mixed, active, mesic Albaquic Hapludalfs
  • 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 - Higdon
  • PSC - 20 to 70 cm.
  • Classificaton Date - 3/4/2011
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Higdon
  • Taxonomic Class - Fine-silty, mixed, active, mesic Aquic Hapludalfs
  • Taxon Kind - series
  • PSC - 33 to 83 cm.
  • Classificaton Date - 11/14/1990
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 56 Cation exchange capacity to clay ratio


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/14/1990 (actual site observation date)
  • Air Photo ID: C-2
  • 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

    aquic conditions

    0—20

    20—170

    69—170

    —-

    —-

    —-
    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

    3

    —

    —

    247

    —

    115

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); dark brown (10YR 3/3) and dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; silt loam; moderate very fine and fine subangular blocky structure; friable; 10.0 very fine roots; 10 percent fine iron-manganese concretions; fragments; moderately acid, pH 6.0, hellige-truog; abrupt wavy boundary. Lab sample # MU038732. Some mixing with Ap horizon.
    AB—20 to 33 centimeters (7.9 to 13.0 inches); yellowish brown (10YR 5/4) silt loam; weak very fine subangular blocky parts to weak very fine granular structure; friable; 0.5 fine roots; 15 percent faint clay films; 10 percent fine iron-manganese concretions; fragments; strongly acid, pH 5.3, hellige-truog; clear wavy boundary. Lab sample # MU038733
    Bt1—33 to 48 centimeters (13.0 to 18.9 inches); yellowish brown (10YR 5/4) silty clay loam; 10 percent yellowish red (5YR 5/8) fine prominent mottles; moderate very fine and fine subangular blocky structure; firm; 3.0 fine roots; 35 percent distinct clay films; 1 percent fine iron-manganese concretions; fragments; moderately acid, pH 5.8, hellige-truog; clear wavy boundary. Lab sample # MU038734
    Bt2—48 to 69 centimeters (18.9 to 27.2 inches); brown (10YR 5/3) and light brownish gray (10YR 6/2) silty clay loam; 10 percent yellowish red (5YR 5/8) medium prominent mottles; weak fine subangular blocky structure; firm; 0.5 fine roots; 35 percent prominent clay films; 10 percent fine iron-manganese concretions; fragments; neutral, pH 7.3, hellige-truog; clear wavy boundary. Lab sample # MU038735
    Btg1—69 to 97 centimeters (27.2 to 38.2 inches); gray (10YR 6/1) silty clay loam; 10 percent yellowish red (5YR 5/8) medium prominent mottles; moderate very fine and fine subangular blocky structure; firm; 3.0 fine roots; 35 percent prominent clay films; 1 percent fine iron-manganese concretions; fragments; slightly alkaline, pH 7.6, hellige-truog; abrupt wavy boundary. Lab sample # MU038736
    Btg2—97 to 137 centimeters (38.2 to 53.9 inches); gray (10YR 6/1) silt loam; 10 percent strong brown (7.5YR 5/8) fine prominent mottles; moderate fine subangular blocky structure; friable; 3.0 fine roots; 35 percent distinct clay films and 35 percent prominent manganese or iron-manganese stains; 30 percent fine and medium iron-manganese concretions; fragments; slightly alkaline, pH 7.7, hellige-truog; gradual wavy boundary. Lab sample # MU038737. Concretions are concentrated near upper and lower boundaries og horizon.
    Btg3—137 to 170 centimeters (53.9 to 66.9 inches); gray (10YR 6/1) and light brownish gray (10YR 6/2) silty clay loam; 10 percent strong brown (7.5YR 5/8) fine prominent mottles; moderate very fine and fine subangular blocky structure; firm; silt coats and 35 percent distinct clay films and 35 percent prominent manganese or iron-manganese stains; 10 percent fine and medium iron-manganese concretions; fragments; slightly alkaline, pH 7.7, hellige-truog. Lab sample # MU038738