IDENTIFIERS

  • Current Taxon Name (Soil Name): Ashton
  • OSD
  • Series Extent
  • User Site ID: 1990MO167112M
  • User Pedon ID: 1990MO167112
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9016726
  • Print Date: 4/27/2025

    • 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: 37.5000000
  • Std. Longitude: -93.5294444
  • Datum: WGS84
  • Township: T32N
  • Range: R21W
  • Section: 18
  • PLSS Details: 2460 feet S and 500 feet E of the NW corner
  • Location Description: 2460 feet south and 500 feet east of the northwest corner of sec. 18, T. 32 N., R. 21 W. Fred Johnson
  • Map Unit: 75375—Horsecreek silt loam, 0 to 2 percent slopes, occasionally flooded
  • State: Missouri
  • County: MO167—Polk
  • MLRA: 116B—Springfield Plain
  • Non-MLRA Soil Survey Area: MO167—Polk County, Missouri

    • PEDON

  • Describers Name: Larry Kichler, Richard Henderson and John Bowers
  • Current Taxonomic Class: Fine-silty, mixed Mollic Hapludalfs
  • 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 - Ashton
  • PSC - 46 to 96 cm.
  • Classificaton Date - 4/18/2012
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Ashton
  • Taxon Kind - series
  • PSC - 46 to 96 cm.
  • Classificaton Date - 8/2/1990
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium derived from mixed
  • Landscape: river valley
  • Landform: stream terrace
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: well
  • Flooding: occasional flooding for very brief periods
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/2/1990 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • 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—46

    46—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

    1

    —

    —

    305

    —

    991

    —

    —

    13.3

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); dark brown (10YR 3/3), brown (10YR 5/3), dry; silt loam; moderate fine granular structure; friable; 4.0 medium roots and 4.0 fine roots; fragments; slightly acid, pH 6.1, hellige-truog; clear smooth boundary. Lab sample # MU039411
    A—23 to 46 centimeters (9.1 to 18.1 inches); dark yellowish brown (10YR 4/4) silt loam; weak fine subangular blocky structure; friable; 0.8 medium roots and 4.0 fine roots; 15 percent distinct silt coats on faces of peds; fragments; neutral, pH 6.7, hellige-truog; gradual smooth boundary. Lab sample # MU039412
    Bt1—46 to 135 centimeters (18.1 to 53.1 inches); brown (7.5YR 4/4) silt loam; moderate medium subangular blocky structure; firm; 4.0 fine roots; distinct clay films on faces of peds and 35 percent distinct silt coats on faces of peds; fragments; strongly acid, pH 5.4, hellige-truog; gradual smooth boundary. Lab sample # MU039413. continuous - phpvsfiid 153005; continuous - phpvsfiid 153005
    Bt2—135 to 152 centimeters (53.1 to 59.8 inches); dark brown (7.5YR 3/4) silty clay loam; moderate coarse subangular blocky structure; firm; 0.8 fine roots; distinct clay films on faces of peds and 15 percent distinct silt coats on faces of peds; fragments; strongly acid, pH 5.5, hellige-truog. Lab sample # MU039414. continuous - phpvsfiid 153007; continuous - phpvsfiid 153007