IDENTIFIERS

  • Current Taxon Name (Soil Name): Downs
  • OSD
  • Series Extent
  • User Site ID: S1975IA045006
  • User Pedon ID: S1975IA045006
  • Vegetation Plot ID: S1975IA045006
  • 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 # - XT162B
  • NCSS Pedon Lab Data NASIS Record ID - 74922
  • 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: 41.9957883
  • Std. Longitude: -90.4123935
  • Datum: WGS84
  • GPS - Positional Error: 10.00
  • Township: 83N
  • Range: 5E
  • Section: 17
  • PLSS Details: NW1/4SW1/4
  • Location Description: 425' south of fence, 1 telephone post east of curve in road; high stream loess covered bench north of goose lake in what is known as "Coose Lake Channel" by Geologist
  • Country: US—United States
  • State: Iowa
  • County: IA045—Clinton
  • 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: IA045—Clinton County, Iowa

    • PEDON

  • Describers Name: John Highland, Louis Boeckman, Larry Johnson
  • 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
  • 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 - 5/13/1975
  • Classifier - John Highland
  • 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: not reviewed
  • QA Status: not reviewed


    • SITE

  • Parent Material: Peoria silty loess over stratified sandy and silty alluvium
  • Landform: bench
  • 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

    SITE OBSERVATION

  • Observation Date: 5/13/1975 (actual site observation date)
  • Data Collector: John Highland
  • 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 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

    —

    —

    —

    —

    —

    899

    —

    155

    8

    22

    -5

    12

    22

    2

    558

    —

    00131635

    CLINTON NUMBER 1, IA US

    NOAA
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2); friable; fragments; abrupt broken boundary. Lab sample # ISU03847
    AB—18 to 33 centimeters (7.1 to 13.0 inches); brown (10YR 4/3) silt loam; moderate fine subangular blocky structure; friable; dark brown (10YR 3/3), moist, coats; fragments; clear irregular boundary. Lab sample # ISU03848
    Bt1—33 to 56 centimeters (13.0 to 22.0 inches); yellowish brown (10YR 5/4) silty clay loam; moderate fine subangular blocky structure; friable; brown (10YR 4/3), moist, coats; fragments; gradual boundary. Lab sample # ISU03849
    Bt2—56 to 69 centimeters (22.0 to 27.2 inches); yellowish brown (10YR 5/4) silty clay loam; yellowish red (5YR 5/6) fine distinct and brown (10YR 5/3) fine distinct mottles; moderate medium subangular blocky structure; friable; fragments; gradual boundary. Lab sample # ISU03850. few clay filled pores few dark oxides
    BCt1—69 to 97 centimeters (27.2 to 38.2 inches); yellowish brown (10YR 5/4) silty clay loam; yellowish red (5YR 5/6) fine distinct and strong brown (7.5YR 5/6) fine distinct and grayish brown (10YR 5/2) fine distinct mottles; weak coarse prismatic parts to weak medium subangular blocky structure; friable; fragments; gradual boundary. Lab sample # ISU03851. few clay filled pores few dark oxides
    BCt2—97 to 119 centimeters (38.2 to 46.9 inches); yellowish brown (10YR 5/4) and grayish brown (10YR 5/2) and strong brown (7.5YR 5/6) silt loam; weak coarse prismatic structure; friable; fragments; gradual boundary. Lab sample # ISU03852. few clay filled pores few dark oxides
    C—119 to 211 centimeters (46.9 to 83.1 inches); yellowish brown (10YR 5/4) and grayish brown (10YR 5/2) and strong brown (7.5YR 5/6) silt loam; structureless massive; friable; fragments. Lab sample # ISU03853, ISU03854, ISU03855, ISU03856