IDENTIFIERS

  • Current Taxon Name (Soil Name): Downs
  • OSD
  • Series Extent
  • User Site ID: S1984IA005006
  • User Pedon ID: S1984IA005006
  • Vegetation Plot ID: S1984IA005006
  • 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 # - X3-162B2-3
  • NCSS Pedon Lab Data NASIS Record ID - 75166
  • Print Date: 11/12/2024

    • 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: 43.4933333
  • Std. Longitude: -91.6075000
  • Datum: WGS84
  • GPS - Positional Error: 10.00
  • Township: 100N
  • Range: 6W
  • Section: 7
  • PLSS Details: 2620 feet north and 765 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
  • MLRA Soil Survey Area: NC-ONA—Onalaska, Wisconsin
  • Non-MLRA Soil Survey Area: IA005—Allamakee County, Iowa
  • 7.5 Minute USGS Quad: 43091-D5—Dorchester, Iowa

    • PEDON

  • Describers Name: Robert Vobora
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Mollic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Pedon PC 5.1
  • Correlated Information:
  • Soil Name - Downs
  • PSC - 23 to 73 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 - 23 to 73 cm.
  • Classificaton Date - 9/14/1984
  • 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 - alfalfa
  • 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 Position: upper third
  • 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 - Bob Vobora
  • Plot or Site Recorder - Bob Vobora

    • 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: 9/14/1984 (actual site observation date)
  • Data Collector: Robert Vobora
  • Surface Water Kind: none observed
  • Hydrology Status: unaltered
  • 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

    MEDIC

    Medicago

    alfalfa

    forb

    100

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

    ochric epipedon

    argillic horizon

    —

    —

    —-

    —-
    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

    —

    —

    379

    —

    899

    —

    155

    8

    22

    -5

    12

    22

    2

    558

    —

    00134624

    LANSING 4 SE, IA US

    NOAA
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); 98 percent very dark grayish brown (10YR 3/2) and 2 percent brown (10YR 4/3), grayish brown (10YR 5/2), dry; silt loam; weak fine subangular blocky structure; friable; few very fine roots; fragments; abrupt smooth boundary. Lab sample # ISU01354. neutral
    Bt1—23 to 38 centimeters (9.1 to 15.0 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate fine subangular blocky structure; friable; few very fine roots; thin brown (10YR 4/3), moist, clay films on all faces of peds and organic stains on all faces of peds; fragments; clear smooth boundary. Lab sample # ISU01355. neutral; continuous - phpvsfiid 1105501; continuous - phpvsfiid 1105501
    Bt2—38 to 74 centimeters (15.0 to 29.1 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate medium subangular blocky, and moderate fine subangular blocky, and moderate medium angular blocky, and moderate fine angular blocky structure; friable; few very fine roots; thin brown (10YR 4/3), moist, clay films on all faces of peds and gray (10YR 6/1), dry, silt coats on all faces of peds and organic stains on all faces of peds; fragments; gradual smooth boundary. Lab sample # ISU01356, ISU01357. medium acid; patchy - phpvsfiid 1105504; continuous - phpvsfiid 1105503; patchy - phpvsfiid 1105504; continuous - phpvsfiid 1105503
    Bt3—74 to 102 centimeters (29.1 to 40.2 inches); yellowish brown (10YR 5/4) silty clay loam; weak medium prismatic parts to moderate medium subangular blocky, and weak medium prismatic parts to moderate fine subangular blocky structure; friable; few very fine roots; thin brown (10YR 4/3), moist, clay films on all faces of peds and gray (10YR 6/1), dry, silt coats on all faces of peds and organic stains on all faces of peds; fragments; clear smooth boundary. Lab sample # ISU01358, ISU01359. medium acid; patchy - phpvsfiid 1105507; continuous - phpvsfiid 1105506; patchy - phpvsfiid 1105507; continuous - phpvsfiid 1105506
    Bt4—102 to 117 centimeters (40.2 to 46.1 inches); yellowish brown (10YR 5/4) silty clay loam; moderate coarse prismatic parts to weak medium subangular blocky, and moderate coarse prismatic parts to weak fine subangular blocky structure; friable; few very fine roots; thin brown (10YR 4/3), moist, clay films on all faces of peds and gray (10YR 6/1), dry, silt coats on all faces of peds; fragments; gradual smooth boundary. Lab sample # ISU01361. medium acid; patchy - phpvsfiid 1105510; continuous - phpvsfiid 1105509; patchy - phpvsfiid 1105510; continuous - phpvsfiid 1105509
    BC—117 to 142 centimeters (46.1 to 55.9 inches); yellowish brown (10YR 5/4) silty clay loam; strong brown (7.5YR 5/6) fine distinct mottles; moderate coarse prismatic structure; friable; few very fine roots; thin brown (10YR 4/3), moist, coats on vertical faces of peds; iron-manganese concretions; fragments; gradual smooth boundary. Lab sample # ISU01362, ISU01363. few dark concretions (iron and manganese oxides); medium acid; continuous - phpvsfiid 1105511; continuous - phpvsfiid 1105511
    C—142 to 168 centimeters (55.9 to 66.1 inches); yellowish brown (10YR 5/4) silt loam; strong brown (7.5YR 5/6) fine distinct mottles; massive; friable; few very fine roots; iron-manganese concretions; fragments. Lab sample # ISU01364. few dark concretions (iron and manganese oxides); slightly acid