IDENTIFIERS

  • Current Taxon Name (Soil Name): Ava
  • OSD
  • Series Extent
  • User Site ID: 1978IL157054
  • User Pedon ID: 1978IL157054
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 78IL157054
  • NCSS Pedon Lab Data NASIS Record ID - 21075
  • Print Date: 12/4/2024

    • 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: 38.1048659
  • Std. Longitude: -89.6451327
  • Datum: WGS84
  • Township: 5S
  • Range: 5W
  • Section: 10
  • PLSS Details: 980 feet E & 760 feet N of SW corner
  • State: Illinois
  • County: IL157—Randolph
  • MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain
  • Non-MLRA Soil Survey Area: IL157—Randolph County, Illinois
  • 7.5 Minute USGS Quad: 38089-A6—Steeleville, Illinois

    • PEDON

  • Describers Name: CM, ML, LV
  • Current Taxonomic Class: Fine-silty, mixed, active, mesic Oxyaquic Fragiudalfs
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 54
  • Correlated Information:
  • Soil Name - Ava
  • PSC - 23 to 73 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - udic
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Ruma
  • Classificaton Date - 12/1/1978
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Peoria loess over Illinoian till with strongly developed Sangamon age paleosol
  • Landscape: till plain
  • Landform: drainageway
  • Slope Shape Across: concave
  • Runoff: high
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/1/1978 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    fragipan

    —

    48 - 81

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

    ochric epipedon

    argillic horizon

    fragipan

    0—15

    23—48

    48—81

    —-

    —-

    —-
    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

    6

    —

    —

    140

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); dark brown (10YR 3/3) silt loam; moderate medium platy, and massive; very friable; 5.0 roots between peds; fragments; moderately acid, pH 5.7, pH meter; abrupt smooth boundary. Lab sample # IL26201; observed in push tube
    B1—15 to 23 centimeters (5.9 to 9.1 inches); 80 percent dark brown (10YR 3/3) and 20 percent brownish yellow (10YR 6/6) silty clay loam; weak fine subangular blocky structure; friable; 0.6 roots between peds; fragments; strongly acid, pH 5.5, pH meter; clear wavy boundary. Lab sample # IL26202; observed in push tube
    B21t—23 to 38 centimeters (9.1 to 15.0 inches); 85 percent yellowish brown (10YR 5/6) and 15 percent very dark grayish brown (10YR 3/2) silty clay loam; weak medium subangular blocky, and weak fine platy structure; friable; 0.6 roots between peds; fragments; strongly acid, pH 5.4, pH meter; clear smooth boundary. Lab sample # IL26203; observed in push tube
    B22t—38 to 48 centimeters (15.0 to 18.9 inches); 80 percent yellowish brown (10YR 5/4) and 20 percent reddish brown (5YR 4/4) silty clay loam; 25 percent brown (10YR 4/3) coarse faint mottles; weak medium prismatic structure; friable; 0.6 roots between peds; fragments; very strongly acid, pH 5.0, pH meter; clear smooth boundary. Lab sample # IL26204; observed in push tube
    IIB23x—48 to 81 centimeters (18.9 to 31.9 inches); brownish yellow (10YR 6/6) silt loam; 10 percent pale brown (10YR 6/3) medium distinct mottles; moderate medium prismatic, and weak medium platy structure; firm; brittle; 0.6 roots between peds; prominent reddish brown (5YR 4/3), moist, clay films on vertical faces of peds and prominent reddish brown (5YR 4/3), moist, clay films on top faces of peds and prominent white (10YR 8/1), moist, silt coats on all faces of peds; 1 percent prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; very strongly acid, pH 4.7, pH meter; clear smooth boundary. Lab sample # IL26205, IL26206; observed in push tube. Horizon split for sampling: IL26205 48 to 64 cm, IL26206 64 to 81 cm.; continuous - phpvsfiid 480396; patchy - phpvsfiid 480397; continuous - phpvsfiid 480396; patchy - phpvsfiid 480397
    IIB3—81 to 102 centimeters (31.9 to 40.2 inches); brownish yellow (10YR 6/6), light brown (7.5YR 6/4), dry; silt loam; 10 percent white (10YR 8/1) medium prominent mottles; weak medium platy, and weak medium subangular blocky structure; firm; 0.6 roots between peds; prominent yellow (10YR 8/8), moist, clay films on vertical faces of peds and prominent white (10YR 8/1), moist, silt coats on all faces of peds and 10 percent prominent yellow (10YR 8/8), moist, clay films on top faces of peds; 1 percent prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; very strongly acid, pH 5.0, pH meter; clear smooth boundary. Lab sample # IL26207; observed in push tube. continuous - phpvsfiid 480399; continuous - phpvsfiid 480399
    IIC1—102 to 122 centimeters (40.2 to 48.0 inches); brownish yellow (10YR 6/8) silty clay loam; 10 percent pale brown (10YR 6/3) medium prominent mottles; weak medium prismatic, and weak medium subangular blocky structure; firm; 0.6 roots between peds; prominent grayish brown (10YR 5/2), moist, clay films on vertical faces of peds and prominent grayish brown (10YR 5/2), moist, clay films on top faces of peds and prominent white (10YR 8/1), moist, silt coats on all faces of peds; 1 percent prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; strongly acid, pH 5.3, pH meter; clear smooth boundary. Lab sample # IL26208; observed in push tube. continuous - phpvsfiid 480402; patchy - phpvsfiid 480403; continuous - phpvsfiid 480402; patchy - phpvsfiid 480403
    IIIC2b—122 to 180 centimeters (48.0 to 70.9 inches); light yellowish brown (10YR 6/4) silty clay loam; 10 percent brownish yellow (10YR 6/8) medium prominent mottles; moderate medium prismatic, and weak medium subangular blocky structure; very firm; prominent grayish brown (10YR 5/2), moist, clay films on all faces of peds and prominent white (10YR 8/1), moist, silt coats on all faces of peds; 1 percent prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; neutral, pH 6.8, pH meter. Lab sample # IL26209; observed in push tube. continuous - phpvsfiid 480405; continuous - phpvsfiid 480405