IDENTIFIERS

  • Current Taxon Name (Soil Name): Clarksville
  • OSD
  • Series Extent
  • User Site ID: 1997MO067114M
  • User Pedon ID: 1997MO067114
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M9706722
  • Print Date: 5/15/2024

    • 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: 36.8242833
  • Std. Longitude: -92.1093444
  • Datum: WGS84
  • Township: T25N
  • Range: R11W
  • Section: 24
  • PLSS Details: 1050 feet E and 1000 feet N of the SW corner
  • Location Description: 1050 ft. east and 1000 ft. north of the southwest corner of section 24, T25N, R11W.
  • Map Unit: 73019—Poynor very gravelly silt loam, 1 to 8 percent slopes
  • State: Missouri
  • County: MO067—Douglas
  • MLRA: 116A—Ozark Highland
  • Non-MLRA Soil Survey Area: MO067—Douglas County, Missouri

    • PEDON

  • Describers Name: KEB, WLS, GWS and KR
  • Current Taxonomic Class: Loamy-skeletal over clayey, siliceous Typic Paleudults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - Clarksville
  • PSC - 20 to 70 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 - taxadjunct
  • PSC - 20 to 70 cm.
  • Classificaton Date - 6/3/1997
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: slope alluvium over residuum
  • Landscape: hills
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: summit
  • Slope Position: upper third
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/3/1997 (actual site observation date)
  • Air Photo ID: 2251-170
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—20

    20—203

    —-

    —-
    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

    7

    —

    —

    323

    —

    60

    1092

    —

    —

    12.8

    —

    —

    —

    —

    —

    —

    —

    5227

    Mansfield

    TAPS
    A—0 to 8 centimeters (0.0 to 3.1 inches); dark brown (10YR 3/3), light brownish gray (10YR 6/2), dry; extremely gravelly silt loam; moderate very fine granular structure; very friable; 6.0 very fine to medium roots and 3.0 coarse roots; 70 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; moderately acid, pH 5.6, hellige-truog; abrupt smooth boundary. Lab sample # MU020436
    E—8 to 20 centimeters (3.1 to 7.9 inches); brown (10YR 5/3), very pale brown (10YR 7/3), dry; extremely gravelly silt loam; moderate fine granular structure; very friable; 6.0 very fine to medium roots and 3.0 coarse roots; 0.5 pores; 65 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU020437
    Bt1—20 to 46 centimeters (7.9 to 18.1 inches); 80 percent brown (7.5YR 5/4) and 20 percent dark yellowish brown (10YR 4/4), 80 percent pink (7.5YR 7/4) and 20 percent very pale brown (10YR 7/3), dry; very gravelly silt loam; moderate very fine and fine subangular blocky structure; friable; 3.0 very fine to medium roots and 0.5 coarse roots; 15 percent faint clay films on faces of peds; 50 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU020438. discontinuous - phpvsfiid 128244; discontinuous - phpvsfiid 128244
    Bt2—46 to 64 centimeters (18.1 to 25.2 inches); 75 percent yellowish red (5YR 5/6) and 25 percent light yellowish brown (10YR 6/4) very gravelly silty clay loam; moderate very fine subangular blocky structure; friable; 3.0 very fine and fine roots and 0.5 medium and coarse roots; 20 percent prominent light yellowish brown (10YR 6/4) skeletans on rock fragments and 35 percent distinct yellowish red (5YR 5/6) clay films on faces of peds; 40 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.2, hellige-truog; clear wavy boundary. Lab sample # MU020439. discontinuous - phpvsfiid 128245; discontinuous - phpvsfiid 128246; discontinuous - phpvsfiid 128245; discontinuous - phpvsfiid 128246
    2Bt3—64 to 81 centimeters (25.2 to 31.9 inches); 80 percent light reddish brown (5YR 6/4) and 10 percent red (2.5YR 5/6) and 10 percent light brown (7.5YR 6/4) silty clay; moderate very fine subangular blocky structure; firm; 3.0 very fine and fine roots and 0.5 medium roots; 45 percent prominent red (2.5YR 5/6) clay films on faces of peds; 5 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog; gradual wavy boundary. Lab sample # MU020440. discontinuous - phpvsfiid 128247; discontinuous - phpvsfiid 128247
    2Bt4—81 to 112 centimeters (31.9 to 44.1 inches); 70 percent yellowish red (5YR 5/6) and 15 percent red (2.5YR 4/6) and 15 percent light brown (7.5YR 6/4) silty clay; moderate very fine subangular blocky structure; firm; 0.5 very fine and fine roots; 60 percent prominent red (2.5YR 4/6) clay films on faces of peds; 10 percent by volume angular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU020441. discontinuous - phpvsfiid 128248; discontinuous - phpvsfiid 128248
    2Bt5—112 to 155 centimeters (44.1 to 61.0 inches); 75 percent red (2.5YR 4/6) and 25 percent brown (7.5YR 5/4) very cobbly clay; moderate very fine and fine subangular blocky structure; firm; 0.5 very fine and fine roots; 80 percent prominent red (2.5YR 4/6) clay films on faces of peds; 10 percent by volume angular 2-39-75 millimeter unspecified fragments and 20 percent by volume angular 2-39-75 millimeter limestone, cherty fragments and 20 percent by volume angular 75-162-250 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # MU020442. The 10% agular gravel is paragravel.; continuous - phpvsfiid 128249; continuous - phpvsfiid 128249
    2Bt6—155 to 203 centimeters (61.0 to 79.9 inches); 50 percent yellow (10YR 7/8) and 35 percent dark red (2.5YR 3/6) and 10 percent light gray (10YR 7/1) and 5 percent brown (7.5YR 5/4) clay; weak thick platy parts to moderate fine and medium subangular blocky structure; firm; 0.5 very fine and fine roots; 40 percent prominent brown (7.5YR 5/4) clay films on vertical faces of peds; fragments; very strongly acid, pH 4.7, hellige-truog. Lab sample # MU020443. discontinuous - phpvsfiid 128250; discontinuous - phpvsfiid 128250