IDENTIFIERS

  • Current Taxon Name (Soil Name): Portia
  • OSD
  • Series Extent
  • User Site ID: 1999MO035004M
  • User Pedon ID: 1999MO035004M
  • Transect:
  • Transect Stop Number - 4
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M9961204
  • NCSS Pedon Lab Data NASIS Record ID - 31557
  • User Project ID: 2021-25NCSPR013
  • Project Name: MLRA 116A - Mark Twain National Forest Update
  • Print Date: 11/23/2024

    • 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: 37.0108083
  • Std. Longitude: -91.1922611
  • Datum: WGS84
  • Township: T27N
  • Range: R2W
  • Section: 17
  • PLSS Details: 2410 feet E and 1150 feet N of the SW corner
  • Location Description: 2410 feet east and 1150 feet north of the SW corner of Sec.17 T.27N., R.2W.
  • Map Unit: 73395—Clarksville very gravelly silt loam, 3 to 8 percent slopes
  • State: Missouri
  • County: MO035—Carter
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO035—Carter County, Missouri
  • 7.5 Minute USGS Quad: 37091-A2—Stegall Mountain, Missouri

    • PEDON

  • Describers Name: DMM, LT
  • Current Taxonomic Class: Fine-loamy, siliceous, semiactive, mesic Oxyaquic Paleudalfs
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Portia
  • PSC - 13 to 63 cm.
  • Classificaton Date - 3/8/2011
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Secesh
  • Taxonomic Class - Fine-loamy, siliceous, active, mesic Ultic Hapludalfs
  • Taxon Kind - series
  • PSC - 13 to 63 cm.
  • Classificaton Date - 2/22/1999
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1


    • SITE

  • Parent Material: slope alluvium derived from sandstone over residuum weathered from dolomite
  • Landscape: hills
  • Landform: structural bench
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: low
  • Drainage Class: moderately well
  • Wet Soil Moisture Duration: 40
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/22/1999 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    redox depletions with chroma 2 or less

    strongly contrasting particle size class

    0—13

    13—203

    61—122

    122—

    —-

    —-

    —-

    —-
    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

    14

    —

    —

    278

    —

    230

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 13 centimeters (0.0 to 5.1 inches); brown (10YR 4/3) very gravelly sandy loam; strong very fine and fine granular structure; very friable; 7.0 very fine and fine roots and 3.0 medium roots and 0.9 coarse roots; 7.0 very fine and fine interstitial and tubular pores; 5 percent by volume nonflat subangular indurated 75-162-250 millimeter sandstone, unspecified fragments and 35 percent by volume 2-39-75 millimeter sandstone, unspecified fragments; strongly acid, pH 5.3, hellige-truog; abrupt smooth boundary. Lab sample # MU063679
    Bt1—13 to 23 centimeters (5.1 to 9.1 inches); dark yellowish brown (10YR 4/4) sandy loam; moderate fine platy structure; friable; 1.0 very coarse roots and 3.0 fine to coarse roots; 7.0 very fine and fine tubular pores; 4 percent distinct strong brown (7.5YR 5/6), moist, clay films on faces of peds and 15 percent distinct dark grayish brown (10YR 4/2), moist, organic stains on faces of peds; 10 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; abrupt smooth boundary. Lab sample # MU063680
    Bt2—23 to 33 centimeters (9.1 to 13.0 inches); strong brown (7.5YR 5/6) sandy loam; weak fine subangular blocky structure; friable; 0.9 very fine and fine roots and 0.1 very coarse roots and 3.0 medium and coarse roots; 7.0 very fine and fine tubular pores; 15 percent distinct dark grayish brown (10YR 4/2), moist, organic stains on faces of peds and 15 percent faint strong brown (7.5YR 5/6), moist, clay films on faces of peds; 2 percent medium spherical black (10YR 2/1) iron-manganese concretions around rock fragments; 10 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.9, hellige-truog; abrupt smooth boundary. Lab sample # MU063681
    Bt3—33 to 61 centimeters (13.0 to 24.0 inches); yellowish red (5YR 4/6) gravelly clay loam; moderate fine and medium subangular blocky structure; friable; 3.0 very fine and fine roots and 0.9 medium and coarse roots; 3.0 fine and medium tubular pores; 35 percent faint yellowish red (5YR 4/6) clay films on faces of peds; 15 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # MU063682
    2Bt4—61 to 86 centimeters (24.0 to 33.9 inches); 50 percent strong brown (7.5YR 4/6) and 50 percent yellowish brown (10YR 5/4) gravelly loam; 4 percent light brownish gray (10YR 6/2) fine prominent and 4 percent red (2.5YR 4/6) fine prominent mottles; moderate fine and medium subangular blocky structure; friable; 0.9 fine and medium roots; 7.0 very fine and fine tubular pores; 35 percent faint strong brown (7.5YR 4/6), moist, clay films on faces of peds; 2 percent medium spherical black (10YR 2/1) iron-manganese concretions between peds; 15 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 15 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; gradual wavy boundary. Lab sample # MU063683
    2Bt5—86 to 122 centimeters (33.9 to 48.0 inches); dark yellowish brown (10YR 4/4) extremely gravelly sandy loam; 15 percent gray (10YR 6/1) fine prominent mottles; weak fine subangular blocky structure; firm; 0.9 fine and medium roots; 7.0 very fine and fine tubular and 3.0 fine tubular pores; 35 percent prominent reddish brown (5YR 4/4), moist, clay films on rock fragments; 10 percent medium spherical black (10YR 2/1) iron-manganese concretions throughout; 1 percent by volume 250-425-600 millimeter sandstone, unspecified fragments and 10 percent by volume 2-39-75 millimeter sandstone, unspecified fragments and 10 percent by volume nonflat subangular indurated 75-162-250 millimeter sandstone, unspecified fragments and 45 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog; gradual wavy boundary. Lab sample # MU063684
    3Bt6—122 to 142 centimeters (48.0 to 55.9 inches); 60 percent dark yellowish brown (10YR 4/6) and 40 percent red (2.5YR 4/6) gravelly clay; moderate very fine and fine angular blocky structure; firm; 3.0 very fine and fine tubular and 0.9 fine tubular pores; 30 percent distinct yellowish brown (10YR 5/6), moist, pressure faces on faces of peds and 75 percent faint dark yellowish brown (10YR 4/6), moist, clay films on all faces of peds and 75 percent faint red (2.5YR 4/6), moist, clay films on all faces of peds; 5 percent by volume nonflat indurated 75-162-250 millimeter limestone, cherty fragments and 20 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.7, hellige-truog; gradual smooth boundary. Lab sample # MU063685
    3Bt7—142 to 157 centimeters (55.9 to 61.8 inches); 50 percent dark yellowish brown (10YR 4/6) and 50 percent red (2.5YR 4/6) gravelly clay; 15 percent gray (10YR 6/1) fine mottles; strong very fine and fine angular blocky structure; firm; 0.1 very fine and fine roots; 3.0 very fine and fine tubular pores; 75 percent faint dark yellowish brown (10YR 4/6), moist, clay films on all faces of peds and 75 percent faint red (2.5YR 4/6), moist, clay films on all faces of peds; 20 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; gradual smooth boundary. Lab sample # MU063686
    3Bt8—157 to 183 centimeters (61.8 to 72.0 inches); 80 percent yellowish brown (10YR 5/6) and 20 percent red (2.5YR 4/8) clay; 15 percent light bluish gray (5B 7/1) fine prominent mottles; strong very fine and fine angular blocky structure; firm; 0.1 very fine and fine roots; 0.9 very fine and fine tubular pores; 15 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds and 15 percent faint light yellowish brown (10YR 6/4), moist, pressure faces on faces of peds and 30 percent distinct light yellowish brown (10YR 6/4), moist, clay films on faces of peds; 10 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # MU063687
    3Bt9—183 to 203 centimeters (72.0 to 79.9 inches); 60 percent red (2.5YR 4/8) and 40 percent yellowish brown (10YR 5/6) clay; strong very fine angular blocky structure; firm; 0.1 very fine and fine roots; 0.1 fine tubular pores; 30 percent distinct red (2.5YR 4/6), moist, clay films on faces of peds and 30 percent distinct yellowish brown (10YR 5/6), moist, clay films on faces of peds; 70 percent medium spherical black (10YR 2/1) iron-manganese concretions throughout; fragments. Lab sample # MU063688