IDENTIFIERS

  • Current Taxon Name (Soil Name): Hobson
  • OSD
  • Series Extent
  • User Site ID: 1998MO203032M
  • User Pedon ID: 1998MO203032M
  • User Site Association ID: 8609
  • Transect:
  • Transect Stop Number - 3
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9861332
  • NCSS Pedon Lab Data NASIS Record ID - 31615
  • Print Date: 11/21/2024

    • 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: 37.1091583
  • Std. Longitude: -91.3181167
  • Datum: WGS84
  • State: Missouri
  • County: MO203—Shannon
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO203—Shannon County, Missouri
  • 7.5 Minute USGS Quad: 37091-A3—Winona, Missouri

    • PEDON

  • Describers Name: JSE, MS, BM & RLT
  • Current Taxonomic Class: Fine-loamy, siliceous, semiactive, mesic Typic Fragiudalfs
  • Current Taxon Kind: taxadjunct
  • 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 - Hobson
  • PSC - 30 to 76 cm.
  • Classificaton Date - 3/8/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Hobson
  • Taxonomic Class - Fine-loamy, siliceous, active, mesic Oxyaquic Fragiudalfs
  • Taxon Kind - series
  • PSC - 30 to 76 cm.
  • Classificaton Date - 3/26/1998
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 9 Percent rock fragments in the control section (vol) and 22.4 percent of Percent clay in the control section and 38 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: slope alluvium over pedisediment over residuum
  • Landscape: hills
  • Landform: structural bench
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Position: on a slope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/26/1998 (actual site observation date)
  • Microrelief Kind: microdepression
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    fragipan

    —

    76 - 137

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

    ochric epipedon

    argillic horizon

    fragipan

    0—20

    30—76

    76—137

    —-

    —-

    —-
    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

    —

    —

    —

    —

    170

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 20 centimeters (0.0 to 7.9 inches); brown (10YR 4/3) silt loam; moderate very fine and fine granular structure; very friable; 7.0 very fine and fine roots; 7.0 fine interstitial and tubular pores; 1 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; clear smooth boundary. Lab sample # MU061600
    BA—20 to 30 centimeters (7.9 to 11.8 inches); dark yellowish brown (10YR 4/6) silt loam; weak very fine and fine subangular blocky structure; very friable; 7.0 very fine and fine roots; 7.0 fine interstitial and tubular pores; 35 percent distinct brown (10YR 4/3) organic stains on faces of peds; 1 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU061601
    Bt1—30 to 58 centimeters (11.8 to 22.8 inches); strong brown (7.5YR 4/6) silt loam; moderate very fine and fine subangular blocky structure; friable; 5.0 very fine and fine roots; 3.0 fine interstitial and tubular pores; 15 percent faint brown (7.5YR 5/4) clay films on faces of peds; 15 percent fine irregular black (N 2/0) iron-manganese concretions between peds; 2 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; clear wavy boundary. Lab sample # MU061602
    Bt2—58 to 76 centimeters (22.8 to 29.9 inches); strong brown (7.5YR 4/6) gravelly silt loam; moderate very fine and fine subangular blocky structure; friable; 3.0 very fine and fine roots; 1.0 fine interstitial and tubular pores; 15 percent distinct brown (7.5YR 5/4) clay films on faces of peds; 35 percent fine irregular black (N 2/0) iron-manganese concretions between peds; 20 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; clear wavy boundary. Lab sample # MU061603
    2Btx1—76 to 102 centimeters (29.9 to 40.2 inches); 60 percent pinkish gray (5YR 6/2) and 40 percent strong brown (7.5YR 5/6) extremely gravelly silt loam; weak very fine subangular blocky structure; firm; brittle; 1.0 fine interstitial and tubular pores; 15 percent distinct reddish brown (5YR 5/4) clay films on faces of peds; 30 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 50 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.7, hellige-truog; diffuse smooth boundary. Lab sample # MU061604
    2Btx2—102 to 137 centimeters (40.2 to 53.9 inches); strong brown (7.5YR 5/6) extremely gravelly silt loam; moderate very fine angular blocky structure; firm; brittle; 1.0 fine interstitial and tubular pores; 15 percent distinct light brown (7.5YR 6/4) clay films on faces of peds and 15 percent distinct dark red (2.5YR 3/6) clay films on faces of peds; 30 percent by volume nonflat indurated 75-162-250 millimeter chert fragments and 50 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU061605
    3Bt3—137 to 163 centimeters (53.9 to 64.2 inches); 40 percent yellowish red (5YR 4/6) and 60 percent red (10R 4/6) extremely cobbly clay; strong fine angular blocky structure; very firm; 0.9 very fine and fine roots; 1.0 fine interstitial and tubular pores; 15 percent distinct yellowish red (5YR 4/6) clay films on faces of peds and 35 percent distinct red (10R 4/6) clay films on faces of peds; 15 percent by volume nonflat indurated 2-40-75 millimeter chert fragments and 55 percent by volume nonflat indurated 75-162-250 millimeter chert fragments; very strongly acid, pH 4.9, hellige-truog; gradual wavy boundary. Lab sample # MU061606
    3Bt4—163 to 198 centimeters (64.2 to 78.0 inches); red (10R 4/8) clay; strong coarse wedge parts to strong very fine and fine angular blocky structure; very firm; 0.9 very fine and fine roots; 1.0 fine interstitial and tubular pores; 15 percent distinct yellowish red (5YR 5/6) clay films on faces of peds and 35 percent distinct red (10R 4/6) clay films on faces of peds; 15 percent fine irregular black (N 2/0) iron-manganese concretions between peds; 10 percent by volume nonflat indurated 2-40-75 millimeter chert fragments. Lab sample # MU061607