IDENTIFIERS

  • Current Taxon Name (Soil Name): Downs
  • OSD
  • Series Extent
  • User Site ID: S1984IA005001
  • User Pedon ID: S1984IA005001
  • Vegetation Plot ID: S1984IA005001
  • User Site Association ID: Loamy-Silty Uplands (MN, IA, WI) DSP Project 2021-2024
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - ISU2015
  • Lab Pedon # - X3-162C2-5
  • NCSS Pedon Lab Data NASIS Record ID - 75168
  • 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: 43.2562306
  • Std. Longitude: -91.5041130
  • Datum: WGS84
  • GPS - Positional Error: 10.00
  • Township: 98N
  • Range: 6W
  • Section: 36
  • PLSS Details: 475 feet north and 950 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 #: 2
  • Correlated Information:
  • Soil Name - Downs
  • PSC - 20 to 70 cm.
  • Classificaton Date - 6/2/2014
  • Classifier - Shaunna Repking
  • Soil Taxonomic Edition - eleventh 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 - 20 to 70 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
  • Geomorphic Component Hills: side slope
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • 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

    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

    7

    —

    —

    384

    —

    0

    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 grayish brown (10YR 3/2) and brown (10YR 4/3) silt loam; 26 percent clay; moderate fine subangular blocky structure; friable; few very fine roots; fragments; slightly acid, pH 6.4, unspecified; abrupt smooth boundary. Lab sample # ISU01313. some streaks and pockets of 10YR4/3
    Bt1—20 to 38 centimeters (7.9 to 15.0 inches); brown (10YR 4/3) silty clay loam; 30 percent clay; weak fine prismatic parts to weak fine subangular blocky structure; friable; few very fine roots; fragments; moderately acid, pH 5.6, unspecified; gradual smooth boundary.
    Bt2—38 to 64 centimeters (15.0 to 25.2 inches); dark yellowish brown (10YR 4/4) silty clay loam; 30 percent clay; moderate fine prismatic, and moderate fine subangular blocky, and moderate medium subangular blocky structure; friable; few very fine roots; fragments; moderately acid, pH 5.8, unspecified; clear smooth boundary.
    Bt3—64 to 81 centimeters (25.2 to 31.9 inches); dark yellowish brown (10YR 4/4) silty clay loam; 28 percent clay; weak fine prismatic parts to weak fine subangular blocky structure; friable; few very fine roots; silt coats on all faces of peds; fragments; moderately acid, pH 5.8, unspecified; clear smooth boundary. many white light gray silt coats on ped faces when dry
    Bt4—81 to 94 centimeters (31.9 to 37.0 inches); dark yellowish brown (10YR 4/4) silty clay loam; 28 percent clay; weak fine subangular blocky structure; friable; few very fine roots; silt coats on all faces of peds; fragments; moderately acid, pH 5.8, unspecified; clear smooth boundary. many white light gray silt coats on ped faces when dry
    C1—94 to 130 centimeters (37.0 to 51.2 inches); dark yellowish brown (10YR 4/4) silt loam; 26 percent clay; strong brown (7.5YR 5/8) fine distinct and grayish brown (2.5Y 5/2) fine distinct mottles; massive; friable; few very fine roots; fragments; moderately acid, pH 5.8, unspecified; gradual smooth boundary. few fine black oxides
    C2—130 to 173 centimeters (51.2 to 68.1 inches); dark yellowish brown (10YR 4/4) silt loam; 22 percent clay; strong brown (7.5YR 5/8) medium distinct and grayish brown (2.5Y 5/2) fine distinct mottles; massive; friable; fragments; moderately acid, pH 6.0, unspecified. few fine black oxides