IDENTIFIERS

  • Current Taxon Name (Soil Name): Clarksville
  • OSD
  • Series Extent
  • User Site ID: 1994MO203923M
  • User Pedon ID: 1994MO203923M
  • Vegetation Plot ID: 1994MO203923M
  • Transect:
  • User Transect ID - shannon-E1E
  • Transect Stop Number - 7
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - MCL
  • Lab Pedon # - M94E_E07
  • NCSS Pedon Lab Data NASIS Record ID - 31989
  • 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: 37.1461417
  • Std. Longitude: -91.0959556
  • Datum: WGS84
  • Township: T29N
  • Range: R1W
  • Section: 30
  • PLSS Details: 395 feet N and 1875 feet W of the SE corner
  • Location Description: 395 feet North and 1875 feet West of the Southeast corner Sec. 30, T.29N., R.1W.
  • State: Missouri
  • County: MO203—Shannon
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO613—Shannon County, Missouri, North & West PartsMO203—Shannon County, Missouri
  • 7.5 Minute USGS Quad: 37091-B1—Exchange, Missouri

    • PEDON

  • Describers Name: DMM, Dick Henderson
  • Current Taxonomic Class: Loamy-skeletal, siliceous, semiactive, mesic Typic Hapludalfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: map unit inclusion
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Clarksville
  • PSC - 43 to 93 cm.
  • Classificaton Date - 3/7/2011
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Clarksville
  • Taxonomic Class - Loamy-skeletal, siliceous, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 25 to 75 cm.
  • Classificaton Date - 7/26/1994
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 3
  • Field Measured Properties: 29 Cation exchange capacity to clay ratio


    • SITE

  • Parent Material: residuum and/or slope alluvium derived from limestone and sandstone
  • Landscape: hills
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: lower third
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: low
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/26/1994 (actual site observation date)
  • Plant Association Name: Oak-Pine Forest
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    COFL2

    QUAL

    QUCO2

    QUST

    QUVE

    Cornus florida

    Quercus alba

    Quercus coccinea

    Quercus stellata

    Quercus velutina

    flowering dogwood

    white oak

    scarlet oak

    post oak

    black oak

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

    ochric epipedon

    argillic horizon

    strongly contrasting particle size class

    0—8

    25—147

    81—

    —-

    —-

    —-
    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

    47

    —

    —

    253

    —

    137

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    A—0 to 8 centimeters (0.0 to 3.1 inches); dark grayish brown (10YR 4/2) extremely gravelly silt loam; strong fine granular structure; very friable; 3.0 very fine and fine roots; 30.0 fine interstitial pores; 1 percent by volume angular 250-425-600 millimeter limestone-sandstone fragments and 5 percent by volume subangular 75-162-250 millimeter limestone-sandstone fragments and 55 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; strongly acid, pH 5.3, hellige-truog; clear smooth boundary. Lab sample # MU052136
    EA—8 to 18 centimeters (3.1 to 7.1 inches); 65 percent brown (10YR 5/3) and 35 percent dark grayish brown (10YR 4/2) very gravelly silt loam; weak fine subangular blocky structure; very friable; 1.0 very fine and fine roots and 1.0 medium roots and 1.0 coarse roots; 3.0 medium tubular and 3.0 fine tubular pores; 45 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU052137
    E—18 to 25 centimeters (7.1 to 9.8 inches); yellowish brown (10YR 5/4) very gravelly loam; weak fine subangular blocky structure; friable; 1.0 very fine and fine roots and 2.0 medium roots; 2.0 medium tubular and 1.0 fine tubular and 1.0 fine interstitial pores; 2 percent distinct brown (10YR 4/3), moist, organic stains in root channels and/or pores and 75 percent faint brown (10YR 5/3), moist, silt coats in root channels and/or pores; 45 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU052138
    Bt1—25 to 33 centimeters (9.8 to 13.0 inches); yellowish brown (10YR 5/4) very gravelly silt loam; weak fine subangular blocky structure; friable; 0.5 medium roots and 1.0 fine roots; 2.0 medium tubular and 1.0 fine interstitial and 30.0 fine tubular pores; 35 percent distinct strong brown (7.5YR 4/6), moist, clay films on vertical faces of peds and 75 percent faint brown (10YR 5/3), moist, silt coats in root channels and/or pores; 40 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; strongly acid, pH 5.2, hellige-truog; clear smooth boundary. Lab sample # MU052139
    Bt21—33 to 43 centimeters (13.0 to 16.9 inches); yellowish brown (10YR 5/4) extremely gravelly silt loam; weak fine subangular blocky structure; friable; 1.0 very fine and fine roots and 0.5 medium roots; 3.0 medium tubular and 30.0 fine tubular and 0.5 coarse tubular pores; 2 percent distinct strong brown (7.5YR 5/6), moist, clay films on faces of peds and 75 percent faint brown (10YR 5/3), moist, silt coats in root channels and/or pores; 65 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; strongly acid, pH 5.1, hellige-truog; clear wavy boundary. Lab sample # MU052140
    2Bt22—43 to 53 centimeters (16.9 to 20.9 inches); yellowish brown (10YR 5/4) extremely gravelly loam; weak fine subangular blocky structure; friable; 1.0 very fine and fine roots and 0.5 medium roots; 3.0 medium tubular and 30.0 fine tubular and 0.5 coarse tubular pores; 2 percent distinct strong brown (7.5YR 5/6), moist, clay films on faces of peds and 75 percent faint brown (10YR 5/3), moist, silt coats in root channels and/or pores; 65 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; strongly acid, pH 5.4, hellige-truog. Lab sample # MU052141
    2Bt3—53 to 64 centimeters (20.9 to 25.2 inches); yellowish brown (10YR 5/4) extremely gravelly loam; weak fine subangular blocky structure; friable; 0.5 very fine and fine roots; 5.0 medium tubular and 10.0 fine tubular pores; 2 percent distinct strong brown (7.5YR 5/6), moist, clay films on faces of peds and 75 percent faint brown (10YR 5/3), moist, silt coats in root channels and/or pores; 10 percent by volume subangular 75-162-250 millimeter limestone-sandstone fragments and 60 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # MU052142
    2Bt4—64 to 81 centimeters (25.2 to 31.9 inches); strong brown (7.5YR 4/6) extremely gravelly loam; moderate fine and medium subangular blocky structure; friable; 0.1 fine roots; 5.0 fine tubular and 2.0 fine interstitial and 1.0 coarse tubular pores; 2 percent prominent black (10YR 2/1), moist, manganese or iron-manganese stains on rock fragments and 35 percent distinct yellowish red (5YR 4/6), moist, clay films on all faces of peds and 75 percent distinct brown (10YR 5/3), moist, silt coats on faces of peds; 10 percent by volume subangular 75-162-250 millimeter limestone-sandstone fragments and 60 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; moderately acid, pH 5.6, hellige-truog; gradual irregular boundary. Lab sample # MU052143
    3Bt5—81 to 97 centimeters (31.9 to 38.2 inches); yellowish red (5YR 5/6) very gravelly clay; weak very fine and fine angular blocky structure; firm; 0.1 fine roots; 2.0 fine interstitial and 3.0 fine tubular pores; 2 percent distinct brown (10YR 5/3), moist, silt coats on faces of peds and 75 percent prominent reddish brown (2.5YR 4/3), moist, clay films on all faces of peds; 35 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; moderately acid, pH 5.8, hellige-truog; clear wavy boundary. Lab sample # MU052144
    3Bt6—97 to 109 centimeters (38.2 to 42.9 inches); 85 percent yellowish red (5YR 5/6) and 10 percent brownish yellow (10YR 6/6) gravelly clay; moderate fine angular blocky structure; firm; 0.1 fine roots; 2.0 fine interstitial pores; 74 percent prominent red (2.5YR 5/6), moist, clay films on all faces of peds and 75 percent prominent strong brown (7.5YR 4/6), moist, clay films on all faces of peds; 25 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; moderately acid, pH 5.7, hellige-truog; clear wavy boundary. Lab sample # MU052145
    3Bt7—109 to 122 centimeters (42.9 to 48.0 inches); 75 percent dark red (2.5YR 3/6) and 10 percent brownish yellow (10YR 6/6) gravelly clay; moderate fine angular blocky structure; firm; 0.1 fine roots; 2.0 fine interstitial and 2.0 fine tubular pores; 2 percent distinct light reddish brown (5YR 6/4), moist, silt coats on vertical faces of peds and 75 percent prominent yellowish red (5YR 5/6), moist, clay films on all faces of peds; 30 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; moderately acid, pH 5.7, hellige-truog; clear wavy boundary. Lab sample # MU052146
    3Bt81—122 to 135 centimeters (48.0 to 53.1 inches); 50 percent brownish yellow (10YR 6/6) and 50 percent yellowish red (5YR 5/6) clay; moderate fine angular blocky structure; firm; 0.1 fine roots; 2 percent distinct yellowish red (5YR 5/6), moist, clay films on all faces of peds and 75 percent prominent dark red (2.5YR 3/6), moist, clay films on all faces of peds; 10 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; moderately acid, pH 5.7, hellige-truog. Lab sample # MU052147
    3Bt82—135 to 147 centimeters (53.1 to 57.9 inches); 50 percent brownish yellow (10YR 6/6) and 50 percent yellowish brown (10YR 5/6) clay; moderate fine angular blocky structure; firm; 0.1 fine roots; 2 percent distinct yellowish red (5YR 5/6), moist, clay films on all faces of peds and 75 percent prominent dark red (2.5YR 3/6), moist, clay films on all faces of peds; 10 percent by volume subangular 2-39-75 millimeter limestone-sandstone fragments; strongly acid, pH 5.4, hellige-truog. Lab sample # MU052148