IDENTIFIERS

  • Current Taxon Name (Soil Name): Gressy
  • OSD
  • Series Extent
  • User Site ID: 1998MO203098M
  • User Pedon ID: 1998MO203098M
  • User Site Association ID: 8560
  • Transect:
  • Transect Stop Number - 4
  • Transect Interval - 200.0
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9861398
  • NCSS Pedon Lab Data NASIS Record ID - 26723
  • User Project ID: 2021-25NCSPR013
  • Project Name: MLRA 116A - Mark Twain National Forest Update
  • Print Date: 2/16/2025

    • 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: 36.9349556
  • Std. Longitude: -91.4998639
  • Datum: WGS84
  • Township: T26N
  • Range: R5W
  • Section: 9
  • PLSS Details: nW 1/4 of the NE 1/4
  • Location Description: Sect. 9nwse, T.26N., R.5W.
  • Map Unit: 74642—Cornwall silt loam, rarely ponded, 0 to 3 percent slopes
  • State: Missouri
  • County: MO203—Shannon
  • MLRA: 116A—Ozark Highland
  • MLRA Soil Survey Area: NC-SPM—Springfield, Missouri
  • Non-MLRA Soil Survey Area: MO203—Shannon County, Missouri
  • 7.5 Minute USGS Quad: 36091-H4—Birch Tree, Missouri

    • PEDON

  • Describers Name: RLT, JSE, MS
  • Current Taxonomic Class: Fine-loamy, mixed, semiactive, mesic Typic Paleudalfs
  • 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 - Gressy
  • PSC - 43 to 93 cm.
  • Classificaton Date - 9/11/2018
  • Classifier - J.R. Perkins
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Branson
  • Taxonomic Class - Fine-silty, siliceous, active, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 15 to 65 cm.
  • Classificaton Date - 11/16/1998
  • Soil Taxonomic Edition - twelfth edition
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1
  • Field Measured Properties: 7.4 percent of pscs sand and 26.3 percent of pscs clay and 0.33 ratio of cec to clay ratio and 8.8 percent of pscs gravel


    • SITE

  • Parent Material: slope alluvium derived from mixed
  • Landscape: karst plateau
  • Landform: sinkhole
  • Geomorphic Component Hills: base slope
  • Hill Slope Profile: toeslope
  • Slope Shape Across: concave
  • Slope Shape Down: linear
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/16/1998 (actual site observation date)
  • Air Photo ID: 25
  • 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
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    fragipan

    noncoherent

    102 - 130

    - 28 -

    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—15

    15—203

    102—130

    102—

    130—

    —15—

    —188—

    —28—

    —-

    —-
    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

    —

    —

    287

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 15 centimeters (0.0 to 5.9 inches); 90 percent dark grayish brown (10YR 4/2) and 10 percent very dark grayish brown (10YR 3/2) silt loam; weak fine granular structure; very friable; 7.0 fine and medium roots; 7.0 fine and medium interstitial and tubular pores; 1 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU011495
    Bt1—15 to 33 centimeters (5.9 to 13.0 inches); yellowish brown (10YR 5/6) silt loam; weak fine subangular blocky structure; friable; 7.0 fine to coarse roots; 7.0 fine tubular pores; 15 percent distinct strong brown (7.5YR 5/6), moist, clay films on faces of peds and 55 percent distinct dark grayish brown (10YR 4/2), moist, organic stains on faces of peds; 1 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU011496
    Bt2—33 to 43 centimeters (13.0 to 16.9 inches); strong brown (7.5YR 5/6) silt loam; weak fine subangular blocky structure; friable; 7.0 fine to coarse roots; 7.0 fine and medium tubular pores; 15 percent distinct yellowish red (5YR 5/8), moist, clay films on faces of peds and 20 percent distinct dark grayish brown (10YR 4/2), moist, organic stains on faces of peds and 25 percent faint strong brown (7.5YR 5/6), moist, clay films on faces of peds; 1 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU011497
    Bt3—43 to 69 centimeters (16.9 to 27.2 inches); strong brown (7.5YR 5/6) silt loam; weak fine subangular blocky structure; friable; 3.0 fine to coarse roots; 3.0 medium and coarse tubular and 7.0 fine tubular pores; 10 percent distinct reddish yellow (7.5YR 6/6), moist, silt coats on faces of peds and 35 percent distinct strong brown (7.5YR 4/6), moist, clay films on faces of peds; 5 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU011498
    Bt4—69 to 89 centimeters (27.2 to 35.0 inches); yellowish red (5YR 5/6) silty clay loam; weak fine subangular blocky structure; firm; 3.0 fine and medium roots; 7.0 fine tubular pores; 15 percent distinct light yellowish brown (10YR 6/4), moist, silt coats on faces of peds and 20 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds; 10 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU011499
    Bt5—89 to 102 centimeters (35.0 to 40.2 inches); yellowish red (5YR 4/6) gravelly silty clay loam; weak fine subangular blocky structure; firm; 3.0 fine to coarse roots; 7.0 fine and medium tubular and 3.0 coarse tubular pores; 20 percent distinct very pale brown (10YR 7/3), moist, silt coats on faces of peds and 25 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds; 25 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; clear smooth boundary. Lab sample # MU011500
    2Btx—102 to 130 centimeters (40.2 to 51.2 inches); red (2.5YR 4/8) gravelly silt loam; moderate fine subangular blocky structure; firm; brittle; 0.9 fine to coarse roots; 7.0 fine vesicular pores; 35 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds and 35 percent distinct pinkish gray (7.5YR 7/2), moist, silt coats on faces of peds; 15 percent irregular yellow (10YR 7/8) masses of oxidized iron; 25 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; gradual irregular boundary. Lab sample # MU011501. 65% Brittle but just outside of upper 40 inch range to be diagnostic.
    3Bt1—130 to 183 centimeters (51.2 to 72.0 inches); red (2.5YR 4/8) very gravelly silt loam; moderate medium subangular blocky structure; firm; 0.9 fine to coarse roots; 7.0 fine vesicular pores; 15 percent distinct pale brown (10YR 6/3), moist, clay films on faces of peds and 35 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds and 35 percent distinct pinkish gray (7.5YR 7/2), moist, silt coats on faces of peds; 15 percent irregular yellow (10YR 7/8) masses of oxidized iron; 50 percent by volume nonflat indurated 2-40-75 millimeter chert fragments; strongly acid, pH 5.2, hellige-truog; clear smooth boundary. Lab sample # MU011502
    3Bt2—183 to 203 centimeters (72.0 to 79.9 inches); red (2.5YR 4/8) very gravelly silty clay loam; moderate medium subangular blocky structure; firm; 7.0 fine vesicular pores; 15 percent distinct pale brown (10YR 6/3), moist, silt coats on faces of peds and 35 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds and 35 percent distinct pinkish gray (7.5YR 7/2), moist, silt coats on faces of peds; 15 percent irregular yellow (10YR 7/8) masses of oxidized iron; 10 percent by volume 75-162-250 millimeter sandstone, unspecified fragments and 45 percent by volume nonflat indurated 2-40-75 millimeter chert fragments. Lab sample # 09