IDENTIFIERS

  • Current Taxon Name (Soil Name): Downs
  • OSD
  • Series Extent
  • User Site ID: 1980IL095062
  • User Pedon ID: 1980IL095062
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 80IL095062
  • NCSS Pedon Lab Data NASIS Record ID - 21177
  • 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: 40.9613239
  • Std. Longitude: -90.0380213
  • Datum: WGS84
  • Township: 11N
  • Range: 4E
  • Section: 10
  • PLSS Details: 1200 feet E & 10 feet S of NW corner
  • Country: US—United States
  • State: Illinois
  • County: IL149—Pike
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-SPI—Springfield, Illinois
  • Non-MLRA Soil Survey Area: IL095—Knox County, Illinois

    • PEDON

  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Mollic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 62
  • Correlated Information:
  • Soil Name - Downs
  • PSC - 48 to 98 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Downs
  • PSC - 48 to 98 cm.
  • Classificaton Date - 8/1/1980
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Peoria loess
  • Landscape: upland
  • Landform: interfluve
  • Geomorphic Component Hills: side slope
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1980 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    Ap

    A

    E

    BE

    Bt1

    Bt2

    Bt3

    BC

    0

    18

    33

    48

    66

    91

    132

    180

    18

    33

    48

    66

    91

    132

    180

    232

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    Ap

    A

    E

    BE

    Bt1

    Bt2

    Bt3

    BC

    0

    18

    33

    48

    66

    91

    132

    180

    18

    33

    48

    66

    91

    132

    180

    232

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    Ap

    A

    E

    BE

    Bt1

    Bt2

    Bt3

    BC

    0

    18

    33

    48

    66

    91

    132

    180

    18

    33

    48

    66

    91

    132

    180

    232

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

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

    mollic epipedon

    argillic horizon

    0—48

    48—132

    —-

    —-
    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

    4

    —

    —

    210

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silt loam; moderate medium granular structure; friable; 0.6 fine roots between peds; fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # IL26966
    A—18 to 33 centimeters (7.1 to 13.0 inches); brown (10YR 5/3) silt loam; moderate thick platy structure; friable; 0.6 fine roots between peds; prominent very dark gray (10YR 3/1), moist, organoargillans on all faces of peds; fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # IL26967. patchy - phpvsfiid 1466122; patchy - phpvsfiid 1466122
    E—33 to 48 centimeters (13.0 to 18.9 inches); light brownish gray (10YR 6/2) silt loam; moderate thin platy structure; friable; 0.6 fine roots between peds; distinct very dark grayish brown (10YR 3/2), moist, organoargillans on all faces of peds; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # IL26968. patchy - phpvsfiid 1466121; patchy - phpvsfiid 1466121
    BE—48 to 66 centimeters (18.9 to 26.0 inches); dark yellowish brown (10YR 4/4) silt loam; strong medium angular blocky structure; friable; 0.6 fine roots between peds; prominent light brownish gray (10YR 6/2), moist, silica coats on all faces of peds; fragments; strongly acid, pH 5.3; clear smooth boundary. Lab sample # IL26969, IL26970. Horizon split for sampling: IL26969 48 to 57 cm, IL26970 57 to 66 cm.; discontinuous - phpvsfiid 1466123; discontinuous - phpvsfiid 1466123
    Bt1—66 to 91 centimeters (26.0 to 35.8 inches); dark yellowish brown (10YR 4/4) silty clay loam; strong medium angular blocky structure; firm; 0.6 fine roots between peds; faint brown (10YR 4/3), moist, clay films on all faces of peds and prominent light gray (10YR 7/2), moist, silt coats on all faces of peds; 1 percent fine faint yellowish brown (10YR 5/6), moist, masses of oxidized iron in matrix and 1 percent fine prominent manganese coatings in matrix and 10 percent fine faint grayish brown (10YR 5/2), moist, iron depletions in matrix; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL26971, IL26972. Horizon split for sampling: IL26971 66 to 79 cm, IL26972 79 to 91 cm.; discontinuous - phpvsfiid 1466119; discontinuous - phpvsfiid 1466120; discontinuous - phpvsfiid 1466119; discontinuous - phpvsfiid 1466120
    Bt2—91 to 132 centimeters (35.8 to 52.0 inches); yellowish brown (10YR 5/4) silty clay loam; 1 percent strong brown (7.5YR 5/6) fine distinct and 10 percent grayish brown (10YR 5/2) fine faint mottles; weak medium prismatic structure; firm; 0.6 fine roots between peds; distinct brown (10YR 4/3), moist, clay films on all faces of peds and prominent light gray (10YR 7/2), moist, silt coats on all faces of peds; 1 percent fine distinct yellowish brown (10YR 5/6), moist, masses of oxidized iron in matrix and 1 percent prominent manganese coatings in matrix; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL26973, IL26975, IL26974. Horizon split for sampling: IL26973 91 to 105 cm, IL26974 105 to 118 cm, IL26975 118 to 132 cm.; discontinuous - phpvsfiid 1466126; patchy - phpvsfiid 1466127; discontinuous - phpvsfiid 1466126; patchy - phpvsfiid 1466127
    Bt3—132 to 180 centimeters (52.0 to 70.9 inches); yellowish brown (10YR 5/6) silty clay loam; 1 percent light brownish gray (10YR 6/2) fine faint mottles; weak coarse prismatic structure; friable; 0.6 fine roots between peds; prominent brown (10YR 4/3), moist, clay films on all faces of peds; 1 percent fine faint light brownish gray (10YR 6/2), moist, iron depletions in matrix and 1 percent fine prominent iron-manganese concretions in matrix; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL26976, IL26979, IL26977, IL26978. Horizon split for sampling: IL26976 132 to 144 cm, IL26977 144 to 156 cm, IL26978 156 to 168 cm, IL26979 168 to 180 cm.; patchy - phpvsfiid 1466124; patchy - phpvsfiid 1466124
    BC—180 to 232 centimeters (70.9 to 91.3 inches); yellowish brown (10YR 5/6) stratified stratified silt loam; 1 percent light brownish gray (10YR 6/2) fine faint mottles; structureless massive; friable; prominent very dark grayish brown (10YR 3/2), moist, clay films on all faces of peds; 1 percent fine faint light brownish gray (10YR 6/2), moist, iron depletions and 1 percent fine prominent iron-manganese concretions in matrix; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL26980, IL26983, IL26981, IL26982. Horizon split for sampling: IL26980 180 to 193 cm, IL26981 193 to 206 cm, IL26982 206 to 219 cm, IL26983 219 to 232 cm.; patchy - phpvsfiid 1466125; patchy - phpvsfiid 1466125