IDENTIFIERS

  • Current Taxon Name (Soil Name): Downs
  • OSD
  • Series Extent
  • User Site ID: S1984IA005002
  • User Pedon ID: S1984IA005002
  • Vegetation Plot ID: S1984IA005002
  • 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 # - X3-162B-2
  • NCSS Pedon Lab Data NASIS Record ID - 75165
  • 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: 43.2555322
  • Std. Longitude: -91.5042297
  • Datum: WGS84
  • GPS - Positional Error: 10.00
  • Township: 98N
  • Range: 6W
  • Section: 36
  • PLSS Details: 200 feet north and 940 feet east of the southwest corner
  • Country: US—United States
  • State: Iowa
  • County: IA005—Allamakee
  • 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: IA005—Allamakee County, Iowa

    • PEDON

  • Describers Name: Robert Vobora
  • 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
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Downs
  • PSC - 43 to 93 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 - 43 to 93 cm.
  • Classificaton Date - 8/30/1984
  • Classifier - Robert Vobora
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Pedon Vegetation and Crop Cover Information:
  • Agronomic Feature - close grown annual crop, or crop-fallow
  • Current Crop - oats, hay
  • Hydric: no
  • Certification Status: not certified
  • QC Status: level 1
  • QA Status: not reviewed


    • SITE

  • Parent Material: loess over till
  • Landscape: upland
  • Landform: ridge
  • 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

  • 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: 8/30/1984 (actual site observation date)
  • Data Collector: Robert Vobora
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    AVENA

    MEDIC

    Avena

    Medicago

    oat

    alfalfa

    grass/grasslike

    forb

    —

    —

    —

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

    ochric epipedon

    argillic horizon

    lithologic discontinuity

    albic 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

    3

    —

    —

    386

    —

    899

    —

    155

    8

    22

    -5

    12

    22

    2

    558

    —

    00134624

    LANSING 4 SE, IA US

    NOAA
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark gray (10YR 3/1), grayish brown (10YR 5/2), dry; silt loam; 23 percent clay; moderate fine subangular blocky structure; friable; few very fine roots and few fine roots; fragments; neutral, pH 7.2, unspecified; abrupt smooth boundary. Lab sample # ISU01314
    E—20 to 33 centimeters (7.9 to 13.0 inches); very dark grayish brown (10YR 3/2) and dark brown (10YR 3/3) and dark yellowish brown (10YR 4/4), brown (10YR 5/3), dry; silt loam; 23 percent clay; weak fine subangular blocky structure; friable; few very fine roots; fragments; neutral, pH 6.8, unspecified; clear smooth boundary. Lab sample # ISU01315. few 10YR4/4 mixings
    BE—33 to 43 centimeters (13.0 to 16.9 inches); brown (10YR 4/3) and dark brown (10YR 3/3) and dark yellowish brown (10YR 4/4) silt loam; 26 percent clay; weak medium subangular blocky, and weak fine subangular blocky structure; friable; few very fine roots; fragments; moderately acid, pH 6.0, unspecified; clear smooth boundary. Lab sample # ISU01316. with some 10YR3/3 and 4/4
    Bt1—43 to 69 centimeters (16.9 to 27.2 inches); dark yellowish brown (10YR 4/4) silty clay loam; 28 percent clay; weak fine prismatic, and weak medium subangular blocky, and weak fine subangular blocky structure; friable; few very fine roots; brown (10YR 4/3), moist, coats and light gray (10YR 7/2), dry, silt coats; fragments; moderately acid, pH 6.0, unspecified; gradual smooth boundary. Lab sample # ISU01317, ISU01318. discontinuous - phpvsfiid 1181096; discontinuous - phpvsfiid 1181096
    Bt2—69 to 89 centimeters (27.2 to 35.0 inches); yellowish brown (10YR 5/4) silty clay loam; 27 percent clay; weak fine prismatic, and weak medium subangular blocky, and weak fine subangular blocky structure; friable; few very fine roots; dark yellowish brown (10YR 4/4), moist, coats and light gray (10YR 7/2), dry, silt coats; fragments; moderately acid, pH 6.0, unspecified; gradual smooth boundary. Lab sample # ISU01319, ISU01320
    BC—89 to 109 centimeters (35.0 to 42.9 inches); yellowish brown (10YR 5/4) silt loam; 25 percent clay; grayish brown (10YR 5/2) fine distinct and yellowish brown (10YR 5/8) fine distinct mottles; weak fine subangular blocky structure; friable; few very fine roots; silt coats and organic stains; fragments; moderately acid, pH 6.0, unspecified; clear smooth boundary. Lab sample # ISU01321
    C1—109 to 137 centimeters (42.9 to 53.9 inches); dark yellowish brown (10YR 4/4) silt loam; 23 percent clay; strong brown (7.5YR 5/6) fine prominent and yellowish brown (10YR 5/6) medium distinct mottles; massive; friable; few very fine roots; silt coats; fragments; slightly acid, pH 6.2, unspecified; clear smooth boundary. Lab sample # ISU01322. with some vertical cleavage and planes, few fine soft black oxides
    C2—137 to 168 centimeters (53.9 to 66.1 inches); dark yellowish brown (10YR 4/4) silt loam; 23 percent clay; strong brown (7.5YR 5/6) medium prominent and yellowish brown (10YR 5/6) fine distinct mottles; massive; friable; silt coats; fragments; neutral, pH 6.6, unspecified. Lab sample # ISU01323. with some vertical cleavage and planes, few fine soft black oxides
    2C—330 to 345 centimeters (129.9 to 135.8 inches); loam; fragments. Lab sample # ISU01324