IDENTIFIERS

  • Current Taxon Name (Soil Name): Hildebrecht
  • OSD
  • Series Extent
  • User Site ID: 2008MO187051M
  • User Pedon ID: 2008MO187051
  • Vegetation Plot ID: 2008MO187051
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0818751
  • Print Date: 11/12/2024

    • 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: 37.8134167
  • Std. Longitude: -90.5226944
  • Datum: WGS84
  • Township: T36N
  • Range: R5E
  • Section: 19
  • PLSS Details: 2746 feet W and 2405 feet N of the SE corner
  • Country: US—United States
  • State: Missouri
  • County: MO187—St. Francois
  • MLRA: 116C—St. Francois Knobs and Basins
  • Non-MLRA Soil Survey Area: MO187—St. Francois County, Missouri
  • 7.5 Minute USGS Quad: 37090-G5—Flat River, Missouri

    • PEDON

  • Describers Name: Keith Knelle, John Horton, Dennis Meinert
  • Current Taxonomic Class: Fine-silty, mixed, active, mesic Oxyaquic Fragiudalfs
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 51
  • Sampled As Information:
  • Soil Name - Hildebrecht
  • Taxonomic Class - Fine-silty, mixed, active, mesic Oxyaquic Fragiudalfs
  • Taxon Kind - series
  • PSC - 10 to 60 cm.
  • Classificaton Date - 1/17/2008
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture SUBClass - oxyaquic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-silty loess derived from mixed over fine-loamy pedisediment derived from chert over fine-silty residuum weathered from chert
  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: negligible
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Derby-doerun Dolomite formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/17/2008 (actual site observation date)
  • Air Photo ID: 37090g5ne
  • Surface Water Kind: none observed
  • 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 sheet
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    QUVE

    QUST

    Quercus velutina

    Quercus stellata

    black oak

    post oak

    —

    —

    —

    —

    —

    —
    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    fragipan

    —

    77 - 136

    - 59 -

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

    ochric epipedon

    argillic horizon

    fragipan

    lithologic discontinuity

    lithologic discontinuity

    0—10

    10—163

    77—136

    88—

    136—

    —10—

    —153—

    —59—

    —1—

    —1—
    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

    3.2

    —

    —

    305.7

    —

    205

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 10 centimeters (0.0 to 3.9 inches); dark brown (10YR 3/3) broken face silt loam; moderate fine subangular blocky structure; very friable; 3.0 medium roots throughout and 3.0 fine roots throughout and 0.5 coarse roots throughout; 10.0 fine tubular pores; fragments; abrupt smooth boundary. Lab sample # MU003425; observed in trench
    Bt1—10 to 25 centimeters (3.9 to 9.8 inches); 60 percent brown (10YR 4/3) broken face and 40 percent brown (10YR 5/3) broken face silt loam; weak fine subangular blocky structure; friable; 3.0 medium roots throughout and 3.0 fine roots throughout and 0.5 coarse roots throughout; 10.0 very fine tubular and 10.0 fine tubular pores; 12 percent distinct brown (10YR 4/3), moist, clay films on all faces of peds; fragments; clear smooth boundary. Lab sample # MU003426; observed in trench
    Bt2—25 to 55 centimeters (9.8 to 21.7 inches); brown (7.5YR 5/4) broken face silty clay loam; moderate fine subangular blocky structure; firm; 0.5 medium roots throughout and 3.0 fine roots throughout and 0.5 coarse roots throughout; 0.5 medium tubular and 3.0 fine tubular pores; 12 percent distinct dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; fragments; clear smooth boundary. Lab sample # MU003427; observed in trench
    Bt3—55 to 77 centimeters (21.7 to 30.3 inches); brown (10YR 5/3) broken face silty clay loam; weak fine subangular blocky structure; firm; 0.5 medium roots throughout and 0.5 fine roots throughout and 0.5 coarse roots throughout; 0.5 medium tubular and 0.5 fine tubular pores; 35 percent prominent light gray (10YR 7/2), moist, silt coats on all faces of peds and 35 percent distinct dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU003428; observed in trench
    2Btx1—77 to 88 centimeters (30.3 to 34.6 inches); grayish brown (10YR 5/2) broken face silty clay loam; weak fine platy structure; firm; 0.5 fine roots throughout; 3.0 fine tubular and 10.0 fine vesicular pores; 35 percent prominent dark gray (10YR 4/1), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented reddish yellow (7.5YR 6/8), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; fragments; abrupt smooth boundary. Lab sample # MU003429; observed in trench
    2Btx2—88 to 110 centimeters (34.6 to 43.3 inches); light brownish gray (10YR 6/2) broken face silt loam; weak coarse prismatic structure; 3.0 very fine vesicular and 3.0 fine vesicular pores; 12 percent faint very dark grayish brown (10YR 3/2), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented very dark gray (10YR 3/1), moist, iron depletions with clear boundaries in matrix; 10 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter chert fragments; gradual wavy boundary. Lab sample # MU003430; observed in trench
    2Btx3—110 to 136 centimeters (43.3 to 53.5 inches); brown (10YR 5/3) broken face very gravelly loam; weak coarse prismatic structure; 3.0 medium vesicular and 3.0 fine vesicular pores; 12 percent prominent light gray (10YR 7/1), moist, silt coats on all faces of peds and 12 percent faint grayish brown (10YR 5/2), moist, clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented brownish yellow (10YR 6/8), moist, iron depletions with clear boundaries in matrix; 5 percent by volume nonflat subangular strongly coherent cemented 75-?-250 millimeter chert fragments and 20 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter chert fragments and 20 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter quartz fragments; gradual wavy boundary. Lab sample # MU003431; observed in trench
    3Bt—136 to 163 centimeters (53.5 to 64.2 inches); 50 percent red (2.5YR 4/6) broken face and 50 percent brown (10YR 5/3) broken face very gravelly loam; weak coarse prismatic structure; 10.0 medium vesicular pores; 12 percent distinct brown (10YR 4/3), moist, clay films on all faces of peds and 35 percent faint brown (7.5YR 4/4), moist, and 35 percent faint light gray (10YR 7/1), moist, silt coats on all faces of peds; 5 percent by volume nonflat subangular strongly coherent cemented 75-?-250 millimeter chert fragments and 20 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter chert fragments and 20 percent by volume nonflat subrounded strongly coherent cemented 2-?-75 millimeter quartz fragments. Lab sample # MU003432; observed in trench