IDENTIFIERS

  • Current Taxon Name (Soil Name): Downs
  • OSD
  • Series Extent
  • User Site ID: S1980IA055004
  • User Pedon ID: S1980IA055004
  • Vegetation Plot ID: S1980IA055004
  • User Site Association ID: MLRA 105 - Deep Loess Soils - Glaciated Uplands - FY21 Proj
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - ISU2015
  • Lab Pedon # - X28-162B-1
  • NCSS Pedon Lab Data NASIS Record ID - 75135
  • Print Date: 5/20/2024

    • 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: 42.6445793
  • Std. Longitude: -91.1978583
  • Datum: WGS84
  • GPS - Positional Error: 10.00
  • Township: 90N
  • Range: 3W
  • Section: 4
  • PLSS Details: 420 feet south and 1620 feet west of the northeast corner
  • Country: US—United States
  • State: Iowa
  • County: IA055—Delaware
  • 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: 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: Pedon PC 6.0B
  • Correlated Information:
  • Soil Name - Downs
  • PSC - 33 to 83 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 - 33 to 83 cm.
  • Classificaton Date - 6/2/1950
  • Classifier - Unknown
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • 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: level 1
  • QA Status: not reviewed


    • SITE

  • Parent Material: Peoria silty loess
  • Landscape: upland
  • Landform: ridge
  • Hill Slope Profile: summit
  • Slope Complexity: simple
  • 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

  • Vegplot Text Note(s): A scan of the original data (i.e. field sheet(s), edits, manuscripts, notes, and other associated data) is available in the scans archive.

    • SITE OBSERVATION

  • Observation Date: 6/2/1980 (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

    5

    —

    —

    —

    —

    899

    —

    155

    8

    22

    -5

    12

    22

    2

    558

    —

    00132364

    DUBUQUE LOCK AND DAM 11, IA US

    NOAA
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2) and yellowish brown (10YR 5/4) silt loam; weak fine subangular blocky structure; friable; fragments; slightly acid, pH 6.4, unspecified; abrupt smooth boundary. Lab sample # ISU00911. 10YR5/4 mixings
    EB—20 to 33 centimeters (7.9 to 13.0 inches); yellowish brown (10YR 5/4) silty clay loam; weak fine subangular blocky structure; friable; yellowish brown (10YR 5/4), moist, coats; fragments; moderately acid, pH 6.0, unspecified; clear smooth boundary. Lab sample # ISU00912
    Bt1—33 to 51 centimeters (13.0 to 20.1 inches); yellowish brown (10YR 5/4) silty clay loam; moderate medium subangular blocky structure; friable; brown (10YR 4/3), moist, coats and clay films and light gray (10YR 7/1), dry, silt coats; fragments; strongly acid, pH 5.4, unspecified; clear smooth boundary. Lab sample # ISU00913. discontinuous - phpvsfiid 1260257; discontinuous - phpvsfiid 1260258; discontinuous - phpvsfiid 1260257; discontinuous - phpvsfiid 1260258
    Bt2—51 to 71 centimeters (20.1 to 28.0 inches); yellowish brown (10YR 5/4) silt loam; moderate medium angular blocky structure; friable; brown (10YR 4/3), moist, coats and brown (7.5YR 4/4), moist, clay films and light gray (10YR 7/1), dry, silt coats; fragments; moderately acid, pH 5.6, unspecified; clear smooth boundary. Lab sample # ISU00914. discontinuous - phpvsfiid 1260260; discontinuous - phpvsfiid 1260261; discontinuous - phpvsfiid 1260260; discontinuous - phpvsfiid 1260261
    BC—71 to 89 centimeters (28.0 to 35.0 inches); yellowish brown (10YR 5/4) silt loam; grayish brown (10YR 5/2) fine faint mottles; weak fine prismatic structure; friable; light gray (10YR 7/1), dry, silt coats; black (10YR 2/1), moist, masses of oxidized iron; fragments; moderately acid, pH 6.0, unspecified; gradual smooth boundary. Lab sample # ISU00916. discontinuous - phpvsfiid 1260262; discontinuous - phpvsfiid 1260262
    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 and yellowish brown (10YR 5/6) fine faint mottles; massive; friable; black (10YR 2/1), moist, manganese masses; fragments; slightly acid, pH 6.2, unspecified. Lab sample # ISU00917