IDENTIFIERS

  • Current Taxon Name (Soil Name): Darmstadt
  • OSD
  • Series Extent
  • User Site ID: S1990IL189033
  • User Pedon ID: S1990IL189033
  • Vegetation Plot ID: S1990IL189033
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P0289
  • NCSS Pedon Lab Data NASIS Record ID - 63336
  • 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: 38.4680557
  • Std. Longitude: -89.3291702
  • Datum: WGS84
  • Township: 1S
  • Range: 2W
  • Section: 4
  • PLSS Details: 200 feet E and 1700 feet N of the SW corner
  • Map Unit: 912A—Darmstadt-Hoyleton complex, 0 to 2 percent slopes
  • State: Illinois
  • County: IL189—Washington
  • MLRA: 113—Central Claypan Areas
  • Non-MLRA Soil Survey Area: IL189—Washington County, Illinois

    • PEDON

  • Describers Name: KDB & MRG
  • Current Taxonomic Class: Fine, montmorillonitic, mesic Albic Natraqualfs
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 33
  • Sampled As Information:
  • Soil Name - Darmstadt
  • Taxonomic Class - Fine, montmorillonitic, mesic Albic Natraqualfs
  • PSC - 28 to 78 cm.
  • Classificaton Date - 9/26/1990
  • Moisture Class - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess over till
  • Landform: upland slope
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/26/1990 (actual site observation date)
  • Surface Cover Properties:
  • 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

    MESA

    Medicago sativa

    alfalfa

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    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

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    139

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    Ap—0 to 18 centimeters (0.0 to 7.1 inches); dark grayish brown (10YR 4/2) silt loam; 17 percent clay; moderate fine granular structure; friable; 3.0 very fine roots; 10 percent very fine iron-manganese nodules; fragments; slightly acid, pH 6.4; abrupt smooth boundary. Lab sample # 91P01739; moist when described;
    E—18 to 28 centimeters (7.1 to 11.0 inches); brown (10YR 4/3) silt loam; 17 percent clay; moderate medium platy structure; friable; 3.0 very fine roots; 10 percent 10YR (10YR), dry, silt coats; 10 percent very fine iron-manganese nodules; fragments; neutral, pH 6.8; abrupt smooth boundary. Lab sample # 91P01740; moist when described;. continuous - phpvsfiid 275987; continuous - phpvsfiid 275987
    Bt—28 to 46 centimeters (11.0 to 18.1 inches); brown (10YR 5/3) silty clay; 42 percent clay; strong medium subangular blocky, and strong medium prismatic structure; firm; 3.0 very fine roots; 75 percent distinct dark grayish brown (10YR 4/2), dry, clay films on all faces of peds; 10 percent very fine iron-manganese nodules; fragments; moderately acid, pH 6.0; clear smooth boundary. Lab sample # 91P01741; moist when described;
    Btg1—46 to 61 centimeters (18.1 to 24.0 inches); grayish brown (2.5Y 5/2) silty clay loam; 35 percent clay; 3 percent yellowish brown (10YR 5/8) medium prominent mottles; moderate medium subangular blocky, and moderate medium prismatic structure; firm; 0.5 very fine roots; 10 percent faint dark grayish brown (10YR 4/2), moist, clay films on all faces of peds and 75 percent distinct very dark grayish brown (10YR 3/2), moist, clay films on all faces of peds; 10 percent very fine iron-manganese nodules; fragments; neutral, pH 6.8; gradual smooth boundary. Lab sample # 91P01742; moist when described;
    Btg2—61 to 71 centimeters (24.0 to 28.0 inches); grayish brown (2.5Y 5/2) silty clay loam; 32 percent clay; 1 percent strong brown (7.5YR 4/6) medium prominent mottles; moderate medium subangular blocky, and moderate medium prismatic structure; firm; 0.5 very fine roots; 30 percent distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent very fine iron-manganese nodules; fragments; slightly alkaline, pH 7.6; gradual smooth boundary. Lab sample # 91P01743; moist when described;
    Btg3—71 to 97 centimeters (28.0 to 38.2 inches); light brownish gray (2.5Y 6/2) silty clay loam; 28 percent clay; 3 percent yellowish brown (10YR 5/8) medium prominent mottles; moderate medium subangular blocky, and moderate medium prismatic structure; friable; 0.5 very fine roots; 10 percent distinct dark grayish brown (2.5Y 4/2), moist, clay films on all faces of peds; 10 percent very fine iron-manganese nodules; fragments; moderately alkaline, pH 8.0; clear smooth boundary. Lab sample # 91P01744; moist when described;
    Btg4—97 to 122 centimeters (38.2 to 48.0 inches); light brownish gray (2.5Y 6/2) silt loam; 25 percent clay; 3 percent yellowish brown (10YR 5/6) medium prominent mottles; weak medium subangular blocky, and weak medium prismatic structure; friable; 0.5 very fine roots; 10 percent distinct dark grayish brown (2.5Y 4/2), moist, clay films on all faces of peds; 10 percent very fine iron-manganese nodules; fragments; moderately alkaline, pH 8.0; clear smooth boundary. Lab sample # 91P01745; moist when described;
    Btg5—122 to 145 centimeters (48.0 to 57.1 inches); light brownish gray (2.5Y 6/2) silt loam; 22 percent clay; 1 percent yellowish brown (10YR 5/6) medium prominent mottles; weak medium subangular blocky structure; friable; 0.5 very fine roots; 10 percent distinct dark grayish brown (2.5Y 4/2), moist, clay films on all faces of peds and 30 percent distinct light gray (10YR 7/1), moist, silt coats; 10 percent very fine iron-manganese nodules; fragments; moderately alkaline, pH 8.2; clear smooth boundary. Lab sample # 91P01746; moist when described;
    Btg6—145 to 152 centimeters (57.1 to 59.8 inches); grayish brown (2.5Y 5/2) silt loam; 20 percent clay; 3 percent yellowish brown (10YR 5/6) medium prominent mottles; weak medium subangular blocky structure; friable; 0.5 very fine roots; 10 percent distinct dark grayish brown (2.5Y 4/2), moist, clay films on all faces of peds; 10 percent very fine iron-manganese nodules; fragments; slightly alkaline, pH 7.8. Lab sample # 91P01747; moist when described;