IDENTIFIERS

  • Current Taxon Name (Soil Name): Alford
  • OSD
  • Series Extent
  • User Site ID: S1996IL181003
  • User Pedon ID: S1996IL181003
  • Vegetation Plot ID: S1996IL181003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 96P0339
  • NCSS Pedon Lab Data NASIS Record ID - 68417
  • Print Date: 12/17/2024

    • 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: 37.3765564
  • Std. Longitude: -89.1193314
  • Datum: WGS84
  • Township: 13S
  • Range: 1E
  • Section: 20
  • PLSS Details: NE1/4 NE1/4
  • Location Description: cultivated fields.
  • State: Illinois
  • County: IL181—Union
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: IL181—Union County, Illinois
  • 7.5 Minute USGS Quad: 37089-D1—Mount Pleasant, Illinois

    • PEDON

  • Describers Name: ECW, DRW
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Sampled As Information:
  • Soil Name - Alford
  • Classificaton Date - 7/5/1996
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: karstland
  • Landform: hillside
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/5/1996 (actual site observation date)
  • Air Photo ID: 54
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - crop trees
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: wind and water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    CIRSI

    Cirsium

    thistle

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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

    11

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    113

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    Ap—0 to 15 centimeters (0.0 to 5.9 inches); dark yellowish brown (10YR 4/4) crushed, yellowish brown (10YR 5/4) crushed, dry; silty clay loam; moderate medium subangular blocky parts to moderate fine granular parts to moderate fine platy structure; hard; 21.0 very fine and fine roots throughout; 21.0 very fine and fine high-continuity interstitial and tubular pores; fragments; noneffervescent; slightly acid, pH 6.3, hellige-truog; clear wavy boundary. Lab sample # 96P02621. The Ap horizon has a platy structure in the lower horizon, probably due to tillage and compaction. Where the platy structure does not appear the structure is probably 2 FM SBK.
    Bt1—15 to 27 centimeters (5.9 to 10.6 inches); 70 percent dark yellowish brown (10YR 4/4) broken face silty clay loam; moderate medium prismatic parts to moderate medium angular blocky structure; friable; 3.0 very fine and fine roots throughout; 3.0 very fine and fine high-continuity interstitial and tubular pores; 10 percent prominent strong brown (7.5YR 4/6), moist, clay films on all faces of peds and 10 percent distinct light brownish gray (10YR 6/2), moist, silt coats on all faces of peds and 10 percent prominent yellowish brown (10YR 5/8), moist, oxide coats on all faces of peds; fragments; noneffervescent; slightly acid, pH 6.3, hellige-truog; clear wavy boundary. Lab sample # 96P02622. discontinuous - phpvsfiid 182993; patchy - phpvsfiid 182995; discontinuous - phpvsfiid 182994; discontinuous - phpvsfiid 182993; patchy - phpvsfiid 182995; discontinuous - phpvsfiid 182994
    Bt2—27 to 41 centimeters (10.6 to 16.1 inches); 50 percent yellowish brown (10YR 5/6) broken face silty clay loam; moderate medium prismatic parts to moderate medium angular blocky parts to moderate medium subangular blocky structure; friable; 3.0 very fine and fine roots throughout; 3.0 very fine and fine high-continuity interstitial and tubular pores; 10 percent prominent strong brown (7.5YR 4/6), moist, clay films on all faces of peds and 10 percent distinct light brownish gray (10YR 6/2), moist, silt coats on all faces of peds and 10 percent prominent yellowish brown (10YR 5/8), moist, oxide coats on all faces of peds and 10 percent distinct black (7.5YR 2/1), moist, manganese or iron-manganese stains on vertical faces of peds; 3 percent fine irregular noncoherent cemented black (7.5YR 2/1) iron-manganese masses throughout; fragments; noneffervescent; strongly acid, pH 5.3, hellige-truog; gradual wavy boundary. Lab sample # 96P02623. The Pedon Program will not record the actual color of the iron-manganese soft masses and thin coats on the ped faces as 7.5YR2.5/1. They were reported as 7.5YR2/1. The same procedure was followed for all of the Bt horizons in which the soft masses appear.; continuous - phpvsfiid 194917; discontinuous - phpvsfiid 194918; patchy - phpvsfiid 194920; discontinuous - phpvsfiid 194919; continuous - phpvsfiid 194917; discontinuous - phpvsfiid 194918; patchy - phpvsfiid 194920; discontinuous - phpvsfiid 194919
    Bt3—41 to 65 centimeters (16.1 to 25.6 inches); 50 percent brown (7.5YR 4/4) broken face silty clay loam; moderate medium and coarse subangular blocky parts to moderate medium angular blocky structure; firm; 3.0 very fine roots throughout; 3.0 very fine high-continuity interstitial and tubular pores; 10 percent distinct light brownish gray (10YR 6/2), moist, silt coats on all faces of peds and 10 percent prominent yellowish brown (10YR 5/8), moist, oxide coats on all faces of peds and 10 percent distinct black (7.5YR 2/1), moist, manganese or iron-manganese stains on vertical faces of peds and 30 percent prominent strong brown (7.5YR 4/6), moist, clay films on all faces of peds; 3 percent fine irregular noncoherent cemented black (7.5YR 2/1) iron-manganese masses throughout; fragments; noneffervescent; strongly acid, pH 5.3, hellige-truog; gradual wavy boundary. Lab sample # 96P02624. continuous - phpvsfiid 183001; discontinuous - phpvsfiid 194929; continuous - phpvsfiid 194916; patchy - phpvsfiid 194930; continuous - phpvsfiid 183001; discontinuous - phpvsfiid 194929; continuous - phpvsfiid 194916; patchy - phpvsfiid 194930
    Bt4—65 to 101 centimeters (25.6 to 39.8 inches); 60 percent yellowish brown (10YR 5/6) broken face silty clay loam; weak medium and coarse prismatic parts to weak medium subangular blocky structure; friable; 3.0 very fine roots throughout; 3.0 very fine and fine high-continuity interstitial and tubular pores; 1 percent distinct black (7.5YR 2/1), moist, manganese or iron-manganese stains on vertical faces of peds and 10 percent distinct light brownish gray (10YR 6/2), moist, silt coats on all faces of peds and 10 percent distinct dark yellowish brown (10YR 4/6), moist, clay films on all faces of peds; 3 percent fine irregular noncoherent cemented black (7.5YR 2/1) iron-manganese masses throughout; fragments; very slight effervescence, by hcl, unspecified; very strongly acid, pH 4.8, hellige-truog; gradual wavy boundary. Lab sample # 96P02625. Between 100 and 160 cm. we observed continuous iron manganese coats on the vertical faces of peds, cracks, and in root channels. The coats appear to be oriented to the aspect and slope of the hill. Silt coats and clay skins were also found on vertical surfaces independently and in layers adjacent to the iron manganese surfaces. Very fine masses of roots were observed along the surfaces of the manganese coats to the bottom of the pit.; discontinuous - phpvsfiid 194931; patchy - phpvsfiid 194933; discontinuous - phpvsfiid 194932; discontinuous - phpvsfiid 194931; patchy - phpvsfiid 194933; discontinuous - phpvsfiid 194932
    Bt5—101 to 127 centimeters (39.8 to 50.0 inches); 60 percent yellowish brown (10YR 5/6) broken face silt loam; weak medium and coarse subangular blocky structure; friable; 0.5 very fine roots between peds; 3.0 very fine high-continuity interstitial and tubular pores; 1 percent distinct black (7.5YR 2/1), moist, manganese or iron-manganese stains on vertical faces of peds and 10 percent distinct dark yellowish brown (10YR 4/6), moist, clay films on all faces of peds and 10 percent distinct light brownish gray (10YR 6/2), moist, silt coats on all faces of peds; 3 percent fine irregular noncoherent cemented black (7.5YR 2/1) iron-manganese masses throughout; fragments; noneffervescent; extremely acid, pH 4.0, hellige-truog; gradual wavy boundary. Lab sample # 96P02626. patchy - phpvsfiid 183037; discontinuous - phpvsfiid 183036; continuous - phpvsfiid 194934; patchy - phpvsfiid 183037; discontinuous - phpvsfiid 183036; continuous - phpvsfiid 194934
    Bt6—127 to 161 centimeters (50.0 to 63.4 inches); 80 percent yellowish brown (10YR 5/6) broken face, 80 percent brownish yellow (10YR 6/6) broken face, dry; silt loam; weak medium and coarse subangular blocky structure; friable; 0.5 very fine roots between peds; 3.0 very fine high-continuity interstitial and tubular pores; 1 percent distinct black (7.5YR 2/1), moist, manganese or iron-manganese stains on vertical faces of peds and 10 percent distinct light brownish gray (10YR 6/2), moist, silt coats on all faces of peds and 10 percent distinct dark yellowish brown (10YR 4/6), moist, clay films on all faces of peds; 3 percent fine irregular noncoherent cemented black (7.5YR 2/1) iron-manganese masses throughout; fragments; noneffervescent; extremely acid, pH 4.0, hellige-truog. Lab sample # 96P02627. discontinuous - phpvsfiid 183038; patchy - phpvsfiid 183040; discontinuous - phpvsfiid 183039; discontinuous - phpvsfiid 183038; patchy - phpvsfiid 183040; discontinuous - phpvsfiid 183039