IDENTIFIERS

  • Current Taxon Name (Soil Name): Knoco
  • OSD
  • Series Extent
  • User Site ID: S1988OK151002
  • User Pedon ID: 88OK151002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 88P0907
  • NCSS Pedon Lab Data NASIS Record ID - 61025
  • Print Date: 3/2/2025

    • 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: 36.9055557
  • Std. Longitude: -98.8166656
  • Datum: WGS84
  • Township: 28N
  • Range: 15W
  • Section: 16
  • PLSS Details: 213.5 meters E and 45 meters N of SW corner
  • Location Description: Woods Co
  • State: Oklahoma
  • County: OK151—Woods
  • MLRA: 78—Central Rolling Red Plains

    • PEDON

  • Describers Name: J.G. Ford, R.F. Gelnar and G.P. King
  • Current Taxonomic Class: Clayey, mixed, active, calcareous, thermic, shallow Ustic Torriorthents
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Knoco
  • PSC - 0 to 20 cm.
  • Classificaton Date - 2/1/2010
  • Moisture Class - ustic
  • Moisture Subclass - ustic
  • Sampled As Information:
  • Soil Name - Knoco
  • Taxonomic Class - Clayey, mixed (calcareous), thermic, shallow Ustic
  • Taxon Kind - series
  • Classificaton Date - 8/1/1988
  • Moisture Class - aridic (torric)
  • Moisture SUBClass - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 3
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: hillside or mountainside
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: footslope
  • Slope Position: middle third
  • Slope Shape Down: linear
  • Runoff: very high
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1988 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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

    paralithic contact

    0—20

    20—0

    —-

    —-
    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

    2

    —

    —

    466

    —

    315

    66

    —

    —

    15

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    1A—0 to 20 centimeters (0.0 to 7.9 inches); reddish brown (2.5YR 4/4) interior, reddish brown (2.5YR 5/4) interior, dry; clay; strong medium prismatic, and strong medium angular blocky structure; extremely hard, extremely firm*; 2.5 very fine roots and 0.5 fine roots throughout; 15 percent carbonate coats on faces of peds; 1 percent fine spherical carbonate concretions; 5 percent by volume 2-39-75 millimeter shale, unspecified fragments; strong effervescence, by hcl, unspecified; moderately alkaline, pH 8.0, hellige-truog; abrupt wavy boundary. Lab sample # 88P04930. Few (less than 1%) fine (less than 3 mm) hematite pebbles. Common selenite fragments (less than 1% and 2 to 3 mm thick).; few fine carbonate concretions concentrations; few lime or carbonate coats surface features on faces of peds; common very fine roots; few fine roots throughout; effervescence is continuous
    1Cr1—20 to 36 centimeters (7.9 to 14.2 inches); dark reddish brown (2.5YR 3/4) interior, reddish brown (2.5YR 4/4) interior, dry; weathered bedrock; extremely hard, extremely firm*; 0.5 fine roots in cracks; 15 percent carbonate coats on rock fragments; 1 percent fine irregular carbonate masses; fragments; strong effervescence, by hcl, unspecified; moderately alkaline, pH 8.0, hellige-truog; abrupt wavy boundary. Lab sample # 88P04931. Few thin (5 mm thick) strata of selenite.; few fine soft masses of carbonate concentrations; few lime or carbonate coats surface features on rock fragments; few fine roots in cracks; effervescence is continuous
    1Cr2—36 to 102 centimeters (14.2 to 40.2 inches); dark reddish brown (2.5YR 3/4) interior, reddish brown (2.5YR 4/4) interior, dry; unweathered bedrock; extremely hard, extremely firm*; 0.5 very fine roots in cracks; 15 percent carbonate coats on rock fragments; 1 percent fine irregular carbonate masses; fragments; strong effervescence, by hcl, unspecified; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 88P04932. Few thin (5 mm thick) selenite strata. Few medium crystalline gypsum pockets. Thin strata/pockets bluish-gray shale.; few fine soft masses of carbonate concentrations; few lime or carbonate coats surface features on rock fragments; few very fine roots in cracks; effervescence is discontinuous