IDENTIFIERS

  • Current Taxon Name (Soil Name): Downs
  • OSD
  • Series Extent
  • User Site ID: S1985IA055021
  • User Pedon ID: S1985IA0550021
  • Vegetation Plot ID: S1985IA0550021
  • User Site Association ID: NC-WAV_Fayette_Paha_PedonsNC-WAV_Downs_Paha_Pedons
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0334
  • NCSS Pedon Lab Data NASIS Record ID - 56050
  • Print Date: 2/16/2025

    • 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: 42.5916672
  • Std. Longitude: -91.4583359
  • Datum: WGS84
  • Township: 90N
  • Range: 5W
  • Section: 20
  • PLSS Details: 2451 feet north and 195 feet east of southwest corner
  • Country: US—United States
  • State: Iowa
  • County: IA055—Delaware
  • MLRA: 104—Eastern Iowa and Minnesota Till Prairies
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-WAV—Waverly, Iowa
  • Non-MLRA Soil Survey Area: IA055—Delaware County, Iowa

    • PEDON

  • Describers Name: Unknown
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Mollic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Downs
  • Classificaton Date - 6/2/2014
  • Classifier - Shaunna Repking
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Downs
  • Taxonomic Class - Fine-silty, mixed, superactive, mesic Mollic Hapludalfs
  • Taxon Kind - series
  • Classificaton Date - 11/1/1985
  • Classifier - Unknown
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Erosion Class - 3
  • Pedoderm Loose Cover Indicator - no
  • Pedon Vegetation and Crop Cover Information:
  • Current Crop - corn
  • Hydric: no
  • Certification Status: not certified
  • QC Status: level 1
  • QA Status: not reviewed


    • SITE

  • Parent Material: loess
  • Landscape: upland
  • Landform: upland slope
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/1/1985 (actual site observation date)
  • Data Collector: Unknown
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ZEMA

    Zea mays

    corn

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—13

    13—48

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    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

    9

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    —

    —

    —

    315

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    Ap—0 to 13 centimeters (0.0 to 5.1 inches); 70 percent dark brown (10YR 3/3) interior and 30 percent dark yellowish brown (10YR 4/4) interior silt loam; moderate fine subangular blocky, and moderate fine granular structure; friable; few (0.5) fine roots; fragments; moderately acid, pH 5.8, hellige-truog; abrupt smooth boundary. Lab sample # 85P01595; moist when described;. Considerable mixing of 10YR 4/4.; few fine roots
    Bt1—13 to 23 centimeters (5.1 to 9.1 inches); yellowish brown (10YR 5/4) interior silt loam; moderate fine and medium subangular blocky structure; friable; few (0.5) fine roots; dark yellowish brown (10YR 4/4), moist, clay films on faces of peds; fragments; moderately acid, pH 5.8, hellige-truog; gradual smooth boundary. Lab sample # 85P01596; moist when described;. discontinuous - phpvsfiid 1313697; discontinuous - phpvsfiid 1313697
    Bt1—23 to 36 centimeters (9.1 to 14.2 inches); yellowish brown (10YR 5/4) interior silt loam; moderate fine and medium subangular blocky structure; friable; few (0.5) fine roots; clay films on faces of peds; fragments; moderately acid, pH 5.8, hellige-truog; gradual smooth boundary. Lab sample # 85P01597; moist when described;. discontinuous - phpvsfiid 1313698; discontinuous - phpvsfiid 1313698
    Bt2—36 to 48 centimeters (14.2 to 18.9 inches); yellowish brown (10YR 5/4) interior silt loam; 1 percent light yellowish brown (2.5Y 6/4) fine distinct and 11 percent strong brown (7.5YR 5/6) fine distinct mottles; moderate fine and medium subangular blocky structure; friable; few (0.5) fine roots; clay films on faces of peds and dark yellowish brown (10YR 4/4), moist, coats in root channels and/or pores; fragments; moderately acid, pH 6.0, hellige-truog; gradual smooth boundary. Lab sample # 85P01598; moist when described;. common fine distinct 7.5YR56 mottles; few fine distinct 2.5Y64 mottles; continuous - phpvsfiid 1313699; continuous - phpvsfiid 1313699
    BC—48 to 61 centimeters (18.9 to 24.0 inches); 33 percent strong brown (7.5YR 5/6) interior and 33 percent light yellowish brown (2.5Y 6/4) and 33 percent yellowish brown (10YR 5/4) silt loam; weak fine and medium subangular blocky structure; friable; few (0.5) fine roots; iron-manganese masses; fragments; slightly acid, pH 6.2, hellige-truog; clear smooth boundary. Lab sample # 85P01599; moist when described;. few very fine soft masses of iron-manganese concentrations; few fine roots
    BC—61 to 74 centimeters (24.0 to 29.1 inches); 33 percent strong brown (7.5YR 5/6) interior and 33 percent light yellowish brown (2.5Y 6/4) and 33 percent yellowish brown (10YR 5/4) silt loam; weak fine and medium subangular blocky structure; friable; few (0.5) fine roots; iron-manganese masses; fragments; slightly acid, pH 6.2, hellige-truog; clear smooth boundary. Lab sample # 85P01600; moist when described;. few very fine soft masses of iron-manganese concentrations; few fine roots
    C1—74 to 97 centimeters (29.1 to 38.2 inches); light brownish gray (2.5Y 6/2) interior silt loam; 11 percent strong brown (7.5YR 5/6) fine and medium prominent mottles; weak medium and coarse subangular blocky structure; friable; fine and medium masses of oxidized iron; fragments; slightly acid, pH 6.2, hellige-truog; gradual smooth boundary.; moist when described;. Not sampled.; few fine and medium soft masses of iron concentrations; common fine and medium prominent 7.5YR56 mottles
    C2—97 to 152 centimeters (38.2 to 59.8 inches); light brownish gray (2.5Y 6/2) interior silt loam; 11 percent strong brown (7.5YR 5/6) fine and medium prominent and 11 percent strong brown (7.5YR 5/8) fine and medium prominent mottles; structureless massive; friable; coarse masses of oxidized iron; fragments; slightly acid, pH 6.2, hellige-truog.; moist when described;. few coarse soft masses of iron concentrations; common fine and medium prominent 7.5YR56 mottles; common fine and medium prominent 7.5YR58 mottles