IDENTIFIERS

  • Current Taxon Name (Soil Name): Pratt
  • OSD
  • Series Extent
  • User Site ID: S1987OK059001
  • User Pedon ID: 87OK059001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 87P0436
  • NCSS Pedon Lab Data NASIS Record ID - 59731
  • Print Date: 2/2/2025

    • 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: 36.6191673
  • Std. Longitude: -99.5783310
  • Datum: WGS84
  • Township: 25N
  • Range: 22W
  • Section: 28
  • PLSS Details: 945 meters W and 427 meters S of NE corner
  • Location Description: Harper County, OK.
  • State: Oklahoma
  • County: OK059—Harper
  • MLRA: 78—Central Rolling Red Plains

    • PEDON

  • Describers Name: Jim Ford, Charles Cail, Gerald Sample, Jim Frie
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Pratt
  • Taxonomic Class - Mixed Psammentic Haplustalfs
  • PSC - 25 to 100 cm.
  • Classificaton Date - 5/1/1987
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: hills
  • Landform: dune
  • Hill Slope Profile: backslope
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/1/1987 (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

    argillic horizon

    0—40

    40—82

    —-

    —-
    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

    11

    —

    —

    640

    —

    90

    63

    —

    —

    —

    —

    —

    16

    27

    4

    —

    —

    —

    —

    —
    1A1—0 to 23 centimeters (0.0 to 9.1 inches); brown (10YR 5/3) crushed, dark brown (10YR 3/3) crushed, moist; loamy fine sand; weak medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; 5.5 fine roots throughout; 2.5 very fine interstitial pores; fragments; clear wavy boundary. Lab sample # 87P02271. many fine roots throughout
    1A2—23 to 40 centimeters (9.1 to 15.7 inches); brown (7.5YR 5/4) crushed, brown (7.5YR 4/4) crushed, moist; loamy fine sand; weak fine granular, and weak medium granular structure; slightly hard, very friable, nonsticky, nonplastic; 2.5 fine roots throughout; 0.5 very fine vesicular pores; fragments; gradual wavy boundary. Lab sample # 87P02272. common fine roots throughout
    1Bt—40 to 82 centimeters (15.7 to 32.3 inches); strong brown (7.5YR 5/6) crushed, brown (7.5YR 4/4) crushed, moist; loamy fine sand; weak coarse prismatic structure; slightly hard, very friable, nonsticky, nonplastic; 0.5 fine roots throughout; 0.5 very fine interstitial pores; fragments; diffuse wavy boundary. Lab sample # 87P02273. Very few discontinuous red (2.5YR 4/6) lamella from 1-2 mm thick; clean or polished sand grains in old root channels; few worm casts.; few fine roots throughout
    1C—82 to 200 centimeters (32.3 to 78.7 inches); strong brown (7.5YR 5/6) crushed, strong brown (7.5YR 5/6) crushed, moist; fine sand; single grain; slightly hard, loose, nonsticky, nonplastic; 0.5 very fine roots; fragments. Lab sample # 87P02274. About 1/3 of the lower part of pit showed bedding plane at 163 cm.; few very fine roots