IDENTIFIERS

  • Current Taxon Name (Soil Name): Donnan
  • OSD
  • Series Extent
  • User Site ID: S1972IA065005
  • User Pedon ID: S1972IA065005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - ISU2015
  • Lab Pedon # - X65782B
  • NCSS Pedon Lab Data NASIS Record ID - 74910
  • Print Date: 11/21/2024

    • 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: 42.7543922
  • Std. Longitude: -91.7192183
  • Datum: WGS84
  • Township: 92N
  • Range: 7W
  • Section: 30
  • PLSS Details: NW1/4
  • Country: US—United States
  • State: Iowa
  • County: IA065—Fayette
  • MLRA: 104—Eastern Iowa and Minnesota Till Prairies
  • Regional Office: 11—Indianapolis, IN
  • MLRA Soil Survey Area: NC-WAV—Waverly, Iowa
  • Non-MLRA Soil Survey Area: IA065—Fayette County, Iowa

    • PEDON

  • Describers Name: Unknown
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Pedon PC 6.0B
  • Sampled As Information:
  • Soil Name - Donnan
  • Taxon Kind - series
  • Classificaton Date - 8/23/1972
  • Classifier - Unknown
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Certification Status: not certified
  • QC Status: not reviewed
  • QA Status: not reviewed


    • SITE

  • Parent Material: highly weathered glacial till and/or eolian sands
  • Landform: side upland slope
  • Slope Shape Across: concave
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/23/1972 (actual site observation date)
  • Data Collector: Unknown
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    3

    —

    —

    —

    —

    315

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    —

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    Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2) and dark brown (10YR 3/3) rubbed sandy loam; weak fine subangular blocky, and weak fine granular structure; friable; fragments; slightly acid, pH 6.2; abrupt smooth boundary. Lab sample # ISU02866
    B1—18 to 33 centimeters (7.1 to 13.0 inches); dark yellowish brown (10YR 4/4) sandy loam; moderate fine subangular blocky structure; friable; fragments; strongly acid, pH 5.2; gradual smooth boundary. Lab sample # ISU02867
    B21—33 to 46 centimeters (13.0 to 18.1 inches); yellowish brown (10YR 5/4) sandy loam; weak medium subangular blocky structure; friable; fragments; very strongly acid, pH 5.0; clear smooth boundary. Lab sample # ISU02868
    B22—46 to 61 centimeters (18.1 to 24.0 inches); yellowish brown (10YR 5/4) and 5/6 5/6) sandy clay loam; light brownish gray (2.5Y 6/2) fine prominent mottles; moderate medium subangular blocky structure; friable; fragments; very strongly acid, pH 5.0; clear smooth boundary. Lab sample # ISU02869
    B23—61 to 69 centimeters (24.0 to 27.2 inches); sandy clay loam; light brownish gray (2.5Y 6/2) and strong brown (7.5YR 5/6) mottles; moderate medium subangular blocky structure; friable; fragments; very strongly acid, pH 5.0; abrupt smooth boundary. Lab sample # ISU02870
    2B24—69 to 76 centimeters (27.2 to 29.9 inches); silt loam; strong brown (7.5YR 5/6) and brown (7.5YR 4/4) and grayish brown (2.5Y 5/2) mottles; moderate medium subangular blocky structure; firm; light gray (10YR 7/1), moist, silt coats; fragments; strongly acid, pH 5.2; abrupt smooth boundary. Lab sample # ISU02871
    2Bt25—76 to 117 centimeters (29.9 to 46.1 inches); dark gray (5Y 4/1) and gray (5Y 5/1) clay; strong brown (7.5YR 5/6) fine distinct mottles; moderate fine subangular blocky, and strong medium subangular blocky, and strong fine subangular blocky structure; extremely firm; fragments; very strongly acid, pH 5.0; gradual smooth boundary. Lab sample # ISU02872
    2Bt3—117 to 147 centimeters (46.1 to 57.9 inches); gray (5Y 5/1) clay; strong brown (7.5YR 5/6) medium prominent mottles; moderate fine subangular blocky, and moderate medium subangular blocky structure; extremely firm; fragments; very strongly acid, pH 5.0; gradual smooth boundary. Lab sample # ISU02873
    2C—147 to 183 centimeters (57.9 to 72.0 inches); light brownish gray (2.5Y 6/2) loam; strong brown (7.5YR 5/6) medium distinct and 5YR 4/8 (5YR 4/8) fine distinct mottles; massive; firm; fragments; moderately acid, pH 5.6. Lab sample # ISU02874