IDENTIFIERS

  • Current Taxon Name (Soil Name): Hapludalfs
  • OSD
  • Series Extent
  • User Site ID: 1991MO019046
  • User Pedon ID: 1991MO019046
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9101946
  • NCSS Pedon Lab Data NASIS Record ID - 34326
  • Print Date: 5/20/2024

    • 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: 39.2371111
  • Std. Longitude: -92.3063611
  • Datum: WGS84
  • Map Unit: 50059—Mexico silt loam, 1 to 4 percent slopes, eroded
  • State: Missouri
  • County: MO019—Boone
  • MLRA: 113—Central Claypan Areas
  • Non-MLRA Soil Survey Area: MO019—Boone County, Missouri

    • PEDON

  • Describers Name: GHD
  • Current Taxon Kind: family
  • Pedon Type: map unit inclusion
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Hapludalfs
  • PSC - 15 to 65 cm.
  • Classificaton Date - 3/4/2011
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Mexico
  • Classificaton Date - 6/19/1991
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess and/or pedisediment
  • Landscape: till plain
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: upper third
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: very high
  • Drainage Class: somewhat poorly
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/19/1991 (actual site observation date)
  • Air Photo ID: 2
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop 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

    reduced matrix

    lithologic discontinuity

    0—15

    15—203

    36—203

    71—71

    —-

    —-

    —-

    —-
    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

    2

    —

    —

    —

    —

    270

    914

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silt loam; weak fine granular structure; friable; 10.0 very fine and fine roots; fragments; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # MU040293
    Bt—15 to 36 centimeters (5.9 to 14.2 inches); brown (10YR 4/3) silty clay loam; weak fine subangular blocky structure; friable; 3.0 very fine roots; 20 percent faint clay films on faces of peds; 15 percent fine iron-manganese concretions and 25 percent fine yellowish red (5YR 4/6) masses of oxidized iron; fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU040294
    Btg1—36 to 51 centimeters (14.2 to 20.1 inches); grayish brown (10YR 5/2) silty clay loam; moderate fine subangular blocky structure; firm; 0.5 very fine roots; 20 percent faint clay films on faces of peds and 20 percent prominent very dark gray (10YR 3/1) manganese or iron-manganese stains; 1 percent fine masses of oxidized iron; 25 percent fine red (2.5YR 4/8); fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU040295
    Btg2—51 to 71 centimeters (20.1 to 28.0 inches); gray (10YR 5/1) silty clay; strong medium prismatic parts to moderate fine and medium subangular blocky structure; firm; 0.5 very fine roots; 40 percent prominent clay films on faces of peds; strong brown (7.5YR 4/6) masses of oxidized iron and 1 percent fine iron-manganese concretions; 10 percent fine red (2.5YR 5/8); fragments; strongly acid, pH 5.3, hellige-truog; gradual smooth boundary. Lab sample # MU040296
    2Btg3—71 to 86 centimeters (28.0 to 33.9 inches); dark grayish brown (10YR 4/2) silty clay loam; 1 percent very dark gray (10YR 3/1) fine distinct mottles; strong medium prismatic parts to strong medium subangular blocky structure; firm; distinct clay films on faces of peds and 10 percent distinct manganese or iron-manganese stains and 30 percent prominent in root channels and/or pores; 10 percent fine brown (7.5YR 4/4) masses of oxidized iron; fragments; strongly acid, pH 5.5, hellige-truog; gradual smooth boundary. Lab sample # MU040297
    2Btg4—86 to 137 centimeters (33.9 to 53.9 inches); gray (10YR 6/1) silty clay loam; moderate medium prismatic parts to moderate medium subangular blocky structure; firm; 15 percent distinct manganese or iron-manganese stains and 30 percent distinct clay films on faces of peds; 1 percent fine dark yellowish brown (10YR 4/6) masses of oxidized iron; fragments; moderately acid, pH 5.9, hellige-truog; gradual smooth boundary. Lab sample # MU040298
    2Btg5—137 to 185 centimeters (53.9 to 72.8 inches); dark grayish brown (10YR 4/2) silty clay loam; moderate medium prismatic parts to moderate medium subangular blocky structure; firm; 15 percent faint clay films on faces of peds and 15 percent distinct manganese or iron-manganese stains; 10 percent fine dark yellowish brown (10YR 4/6) masses of oxidized iron; fragments; moderately acid, pH 5.7, hellige-truog; gradual smooth boundary. Lab sample # MU040299
    2Btg6—185 to 203 centimeters (72.8 to 79.9 inches); light gray (10YR 7/1) silty clay loam; strong medium subangular blocky structure; firm; 10 percent faint clay films on faces of peds and 10 percent distinct manganese or iron-manganese stains; 10 percent medium dark yellowish brown (10YR 4/6) masses of oxidized iron; fragments; moderately acid, pH 5.6, hellige-truog. Lab sample # MU040300