IDENTIFIERS

  • Current Taxon Name (Soil Name): Downs
  • OSD
  • Series Extent
  • User Site ID: S1975IA043010
  • User Pedon ID: S1975IA043010
  • Vegetation Plot ID: S1975IA043010
  • User Site Association ID: MLRA 105 - Deep Loess Soils - Glaciated Uplands - FY21 ProjLoamy-Silty Uplands (MN, IA, WI) DSP Project 2021-2024
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - ISU2015
  • Lab Pedon # - X22-162D3
  • NCSS Pedon Lab Data NASIS Record ID - 75039
  • Print Date: 11/24/2024
  • 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: 43.0810670
  • Std. Longitude: -91.3305639
  • Datum: WGS84
  • GPS - Positional Error: 10.00
  • Township: 95N
  • Range: 4W
  • Section: 5
  • PLSS Details: 50 feet south and 45 feet west of the northeast corner
  • Country: US—United States
  • State: Iowa
  • County: IA043—Clayton
  • MLRA: 105—Upper Mississippi River Bedrock Controlled Uplands and Valleys
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-ONA—Onalaska, Wisconsin
  • Non-MLRA Soil Survey Area: IA043—Clayton 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: Pedon PC6.0B
  • Pedon #: 28
  • Correlated Information:
  • Soil Name - Downs
  • PSC - 25 to 75 cm.
  • Classificaton Date - 3/14/2022
  • Classifier - Shaunna Repking
  • Soil Taxonomic Edition - twelfth 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
  • PSC - 25 to 75 cm.
  • Classificaton Date - 7/17/1975
  • 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:
  • Agronomic Feature - crop row on bed or ridge
  • Current Crop - corn
  • Hydric: no
  • Certification Status: not certified
  • QC Status: not reviewed
  • QA Status: not reviewed


  • SITE

  • Parent Material: Peoria silty loess
  • Landscape: upland
  • Geomorphic Component Hills: side slope
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no
  • RaCA Information:
  • Plot/Site Set Up By - Unknown
  • Plot or Site Recorder - Unknown
  • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/17/1975 (actual site observation date)
  • Data Collector: Unknown
  • Surface Water Kind: none observed
  • Hydrology Status: unaltered
  • 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
  • Extra Moisture Source: none
  • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ZEMA

    Zea mays

    corn

    grass/grasslike

    100

    overstory

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

    ochric epipedon

    argillic horizon

    redox concentrations

    redox depletions with chroma 2 or less

    —-

    —-

    —-

    —-

    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

    12

    225

    899

    155

    8

    22

    -5

    12

    22

    2

    558

    00132603

    ELKADER 6 SSW, IA US

    NOAA

    Ap—0 to 20 centimeters (0.0 to 7.9 inches); brown (10YR 4/3) and dark yellowish brown (10YR 4/4) and yellowish brown (10YR 5/6) and brown (10YR 4/3) rubbed silt loam; weak fine subangular blocky structure; very dark grayish brown (10YR 3/2), moist,; fragments; abrupt smooth boundary. Lab sample # ISU03871
    EB—20 to 25 centimeters (7.9 to 9.8 inches); yellowish brown (10YR 5/6) silt loam; weak fine subangular blocky structure; friable; dark yellowish brown (10YR 4/4), moist,; fragments; moderately acid, pH 6.0, unspecified; clear smooth boundary. Lab sample # ISU03872
    Bt1—25 to 38 centimeters (9.8 to 15.0 inches); yellowish brown (10YR 5/6) silty clay loam; weak fine subangular blocky, and moderate fine subangular blocky structure; friable; dark yellowish brown (10YR 4/4), moist,; fragments; slightly acid, pH 6.2, unspecified; clear smooth boundary. Lab sample # ISU03873
    Bt2—38 to 56 centimeters (15.0 to 22.0 inches); yellowish brown (10YR 5/6) silty clay loam; weak fine subangular blocky structure; friable; brown (10YR 4/3), moist, clay films; black (10YR 2/1), moist, manganese masses; fragments; moderately acid, pH 6.0, unspecified; clear smooth boundary. Lab sample # ISU03874. discontinuous - phpvsfiid 1344290; discontinuous - phpvsfiid 1344290
    BC—56 to 89 centimeters (22.0 to 35.0 inches); yellowish brown (10YR 5/4) silt loam; brown (10YR 5/3) fine faint mottles; weak medium prismatic structure; friable; fine faint brown (7.5YR 5/4), moist, masses of oxidized iron; fragments; moderately acid, pH 6.0, unspecified; clear smooth boundary. Lab sample # ISU03875
    C—89 to 152 centimeters (35.0 to 59.8 inches); yellowish brown (10YR 5/4) silt loam; grayish brown (10YR 5/2) fine faint mottles; friable; fine distinct brown (7.5YR 4/4), moist, and black (10YR 2/1), moist, masses of oxidized iron; fragments; moderately acid, pH 6.0, unspecified.