IDENTIFIERS

  • Current Taxon Name (Soil Name): Irwin
  • OSD
  • Series Extent
  • User Site ID: 06KS113007
  • User Pedon ID: 06KS113007
  • User Site Association ID: Irwin, Ladysmith, Dwight, Konza DeAnn Presley PhD studyKansas State University Laboratory PedonsKSU _ Presley dissertation
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSU
  • Lab Pedon # - 06KS113007
  • NCSS Pedon Lab Data NASIS Record ID - 40830
  • Print Date: 2/16/2025

    • 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: 38.4436493
  • Std. Longitude: -97.4965668
  • Datum: WGS84
  • Township: 18S
  • Range: 2W
  • Section: 36
  • PLSS Details: NW 1/4
  • Location Description: 4 miles north and 2 miles east of McPherson, KS
  • State: Kansas
  • County: KS113—McPherson
  • MLRA: 75—Central Loess Plains
  • Non-MLRA Soil Survey Area: KS113—McPherson County, Kansas
  • 7.5 Minute USGS Quad: 38097-D4—Canton, Kansas

    • PEDON

  • Describers Name: DeAnn Presley
  • Current Taxonomic Class: Fine, smectitic, mesic Typic Argiustolls
  • Pedon Purpose: research site
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Irwin
  • Taxonomic Class - Fine, smectitic, mesic Typic Argiustolls
  • PSC - 22 to 72 cm.
  • Classificaton Date - 7/21/2006
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess over loess
  • Hill Slope Profile: summit
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Ogallala group .
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/21/2006 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    redox concentrations

    lithologic discontinuity

    redox depletions with chroma 2 or less

    secondary carbonates

    slickensides

    0—41

    22—

    22—

    79—

    79—

    79—165

    79—165

    —-

    —-

    —-

    —-

    —-

    —-

    —-
    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

    1

    —

    —

    479

    —

    315

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 22 centimeters (0.0 to 8.7 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; silty clay loam; 34 percent clay; weak medium subangular blocky structure; firm, moderately sticky, moderately plastic; 1.0 fine roots throughout; 0.5 fine dendritic tubular pores; fragments; noneffervescent, by hcl, 1n; clear smooth boundary. Lab sample # KSUR1872; observed in push tube
    Bt—22 to 41 centimeters (8.7 to 16.1 inches);, very dark grayish brown (10YR 3/2), moist; silty clay; 45 percent clay; moderate medium prismatic structure; very firm, very sticky, very plastic; 0.5 fine roots between peds; 0.5 fine irregular pores; 10 percent faint very dark brown (10YR 2/2), moist, organoargillans on all faces of peds; 1 percent fine distinct dark yellowish brown (10YR 4/4), moist, masses of oxidized iron and 1 percent fine faint black (N 2.5/), moist, iron-manganese masses; fragments; noneffervescent, by hcl, 1n; abrupt smooth boundary. Lab sample # KSUR1873; observed in push tube. discontinuous - phpvsfiid 333690; discontinuous - phpvsfiid 333690
    Btk—41 to 79 centimeters (16.1 to 31.1 inches);, dark grayish brown (10YR 4/2), moist; silty clay; 42 percent clay; moderate medium prismatic structure; very firm, very sticky, very plastic; 0.5 fine roots between peds; 0.5 fine irregular pores; 5 percent faint dark brown (10YR 3/3), moist, clay films on all faces of peds; 2 percent fine distinct dark yellowish brown (10YR 4/6), moist, masses of oxidized iron and 5 percent fine distinct iron-manganese nodules; 1 percent fine distinct carbonate nodules; fragments; noneffervescent, by hcl, 1n; gradual smooth boundary. Lab sample # KSUR1874; observed in push tube. patchy - phpvsfiid 333692; patchy - phpvsfiid 333692
    2Btkss1—79 to 130 centimeters (31.1 to 51.2 inches);, dark grayish brown (10YR 4/2), moist; silty clay; 44 percent clay; moderate medium prismatic structure; very firm, very sticky, very plastic; 0.2 very fine roots between peds; 0.5 fine irregular pores; 5 percent slickensides (pedogenic) on all faces of peds and 10 percent faint dark brown (10YR 3/3), moist, clay films on all faces of peds; 2 percent fine distinct grayish brown (10YR 5/2), moist, iron depletions and 5 percent fine distinct black (N 2.5/), moist, iron-manganese nodules and 10 percent fine distinct dark yellowish brown (10YR 4/6), moist, masses of oxidized iron; 4 percent medium distinct carbonate nodules; fragments; noneffervescent, by hcl, 1n; gradual smooth boundary. Lab sample # KSUR1875; observed in push tube. discontinuous - phpvsfiid 333699; discontinuous - phpvsfiid 333699
    2Btkss2—130 to 165 centimeters (51.2 to 65.0 inches);, very dark grayish brown (10YR 3/2), moist; silty clay; 50 percent clay; moderate medium prismatic structure; very firm, very sticky, very plastic; 0.5 fine irregular pores; 5 percent slickensides (pedogenic) on all faces of peds and 10 percent faint very dark grayish brown (10YR 3/2), moist, clay films on all faces of peds; 2 percent fine distinct dark yellowish brown (10YR 4/6), moist, masses of oxidized iron and 5 percent fine distinct grayish brown (10YR 5/2), moist, iron depletions and 5 percent fine distinct black (N 2.5/), moist, iron-manganese nodules; 2 percent medium distinct carbonate nodules; fragments; noneffervescent, by hcl, 1n; gradual smooth boundary. Lab sample # KSUR1876; observed in push tube. discontinuous - phpvsfiid 333705; discontinuous - phpvsfiid 333705
    2Bt—165 to 244 centimeters (65.0 to 96.1 inches);, very dark grayish brown (10YR 3/2), moist; silty clay; 44 percent clay;—Error in Exists On—structure; very firm, very sticky, very plastic; 0.5 fine irregular pores; 10 percent faint very dark grayish brown (10YR 3/2), moist, clay films on all faces of peds; 5 percent fine distinct black (N 2.5/), moist, iron-manganese masses and 10 percent fine distinct grayish brown (10YR 5/2), moist, iron depletions and 20 percent medium prominent strong brown (7.5YR 4/6), moist, masses of oxidized iron; fragments; noneffervescent, by hcl, 1n. Lab sample # KSUR1877; observed in push tube. discontinuous - phpvsfiid 333727; discontinuous - phpvsfiid 333727