IDENTIFIERS

  • Current Taxon Name (Soil Name): Clarksville
  • OSD
  • Series Extent
  • User Site ID: 1997MO153219M
  • User Pedon ID: 1997MO153219
  • User Site Association ID: 7727
  • Transect:
  • User Transect ID - 106
  • Transect Stop Number - 9
  • Transect Interval - 50.0
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9815306
  • Print Date: 3/31/2025

    • 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: 36.7922556
  • Std. Longitude: -92.1548278
  • Datum: WGS84
  • Township: T24N
  • Range: R11W
  • Section: 3
  • PLSS Details: 1525 feet W and 1050 feet S of the NE corner
  • Location Description: 1525 feet west and 1050 feet south of the NE corner of sec. 3, T. 24 N., R. 11 W.
  • Map Unit: 73019—Poynor very gravelly silt loam, 1 to 8 percent slopes
  • State: Missouri
  • County: MO153—Ozark
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO153—Ozark County, Missouri

    • PEDON

  • Describers Name: BF, GC, KS
  • Current Taxonomic Class: Loamy-skeletal, siliceous, semiactive, mesic Typic Paleudults
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Clarksville
  • PSC - 23 to 73 cm.
  • Classificaton Date - 4/18/2012
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Poynor
  • Taxonomic Class - Loamy-skeletal over clayey, siliceous, semiactive, mesic Typic Paleudults
  • Taxon Kind - series
  • PSC - 23 to 72 cm.
  • Classificaton Date - 10/20/1997
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Field Measured Properties: 17.4 percent of Percent clay in the control section


    • SITE

  • Parent Material: slope alluvium over residuum
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/20/1997 (actual site observation date)
  • Air Photo ID: 11-1
  • 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

    0—23

    23—152

    —-

    —-
    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

    8

    —

    —

    296

    —

    196

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 8 centimeters (0.0 to 3.1 inches); dark grayish brown (10YR 4/2) very gravelly silt loam; weak fine granular structure; friable; 8.0 fine to coarse roots throughout; 8.0 fine to coarse interstitial and tubular pores; 50 percent by volume 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.5, hellige-truog; clear smooth boundary. Lab sample # MU060836
    E—8 to 23 centimeters (3.1 to 9.1 inches); brown (10YR 5/3) gravelly silt loam; weak fine subangular blocky structure; friable; 8.0 fine to coarse roots throughout; 8.0 fine to coarse interstitial and tubular pores; 30 percent by volume 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # MU060837
    Bt1—23 to 43 centimeters (9.1 to 16.9 inches); strong brown (7.5YR 5/6) very gravelly silt loam; moderate fine subangular blocky structure; friable; 8.0 fine to coarse roots throughout; 8.0 fine to coarse interstitial and tubular pores; 30 percent distinct clay films and 30 percent distinct pale brown (10YR 6/3) silt coats; 40 percent by volume 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU060838
    Bt2—43 to 79 centimeters (16.9 to 31.1 inches); strong brown (7.5YR 5/6) very gravelly silt loam; moderate fine and medium subangular blocky structure; firm; 3.0 fine and medium roots throughout; 8.0 fine and medium interstitial and tubular pores; 20 percent distinct pale brown (10YR 6/3) silt coats and 30 percent distinct clay films; 50 percent by volume 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.2, hellige-truog; clear wavy boundary. Lab sample # MU060839
    Bt3—79 to 112 centimeters (31.1 to 44.1 inches); 80 percent red (2.5YR 4/6) and 20 percent strong brown (7.5YR 5/6) extremely gravelly silt loam; moderate fine subangular blocky structure; firm; 0.5 fine roots throughout; 3.0 fine and medium discontinuous tubular pores; 15 percent distinct pale brown (10YR 6/3) silt coats and 40 percent distinct clay films; 20 percent by volume 75-162-250 millimeter limestone, cherty fragments and 50 percent by volume 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog; clear wavy boundary. Lab sample # MU060840
    2Bt4—112 to 152 centimeters (44.1 to 59.8 inches); 60 percent red (2.5YR 4/6) and 30 percent strong brown (7.5YR 5/6) and 10 percent gray (10YR 6/1) very gravelly silty clay; moderate fine and medium subangular blocky structure; firm; 0.5 fine roots throughout; 3.0 fine and medium discontinuous tubular pores; 60 percent prominent clay films; 50 percent by volume 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog. Lab sample # MU060841