IDENTIFIERS

  • Current Taxon Name (Soil Name): Heldt
  • OSD
  • Series Extent
  • User Site ID: S1999CO087003
  • User Pedon ID: 99CO087003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 99P0380
  • NCSS Pedon Lab Data NASIS Record ID - 11239
  • 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: 40.2800560
  • Std. Longitude: -103.5936661
  • Datum: WGS84
  • Township: 4N
  • Range: 56W
  • Section: 25
  • PLSS Details: 2600 feet E and 800 feet N of the SW1/4
  • State: Colorado
  • County: CO087—Morgan
  • MLRA: 67—Central High Plains
  • Non-MLRA Soil Survey Area: CO087—Morgan County, Colorado
  • 7.5 Minute USGS Quad: 40103-C5—Brush East, Colorado

    • PEDON

  • Describers Name: jwb, mlp, ms
  • Current Taxonomic Class: Fine, smectitic, mesic Aridic Haplustepts
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - Heldt
  • Classificaton Date - 6/15/2007
  • Moisture Class - ustic
  • Sampled As Information:
  • Soil Name - Heldt
  • Taxonomic Class - Fine, smectitic, mesic Vertic Haplustept
  • Taxon Kind - series
  • Classificaton Date - 7/2/1999
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: plains
  • Landform: terrace
  • Runoff: high
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/2/1999 (actual site observation date)
  • Air Photo ID: 42
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    cambic horizon

    0—30

    30—206

    —-

    —-
    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

    0

    —

    —

    1285

    —

    180

    356

    —

    —

    8.9

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 12 centimeters (0.0 to 4.7 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2) and very dark grayish brown (10YR 3/2) crushed, moist; clay; 54 percent clay; moderate fine subangular blocky, and moderate medium subangular blocky structure; very hard, very firm, very sticky, very plastic; very slow permeability; 6.0 very fine roots and 0.5 medium roots and 3.0 fine roots; fragments; very slight effervescence; moderately alkaline, pH 8.0, thymol-blue; clear smooth boundary. Lab sample # 99P02076
    Bw1—12 to 25 centimeters (4.7 to 9.8 inches); grayish brown (10YR 5/2), very dark grayish brown (2.5Y 3/2) and dark grayish brown (2.5Y 4/2) crushed, moist; clay; 58 percent clay; strong fine and medium angular blocky structure; very hard, very firm, very sticky, very plastic; very slow permeability; 3.0 very fine and fine roots and 0.8 medium roots; 1.0 very fine tubular pores; 55 percent distinct clay films on faces of peds and in pores; 1 percent fine 2.5Y (2.5Y) manganese concretions; fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; clear smooth boundary. Lab sample # 99P02077. discontinuous - phpvsfiid 202634; discontinuous - phpvsfiid 202634
    Bw2—25 to 66 centimeters (9.8 to 26.0 inches); grayish brown (10YR 5/2), dark grayish brown (10YR 4/2) crushed and dark grayish brown (2.5Y 4/2), moist; clay; 57 percent clay; moderate medium prismatic parts to weak fine prismatic parts to moderate medium subangular blocky structure; very hard, very firm, very sticky, very plastic; very slow permeability; 0.8 very fine and fine roots and 0.8 medium roots; 3.0 very fine tubular pores; 30 percent distinct clay films on faces of peds; fragments; strong effervescence; moderately alkaline, pH 8.0, thymol-blue; gradual wavy boundary. Lab sample # 99P02078. discontinuous - phpvsfiid 202635; discontinuous - phpvsfiid 202635
    Bw3—66 to 86 centimeters (26.0 to 33.9 inches); brown (10YR 5/3), dark grayish brown (10YR 4/2) exterior and dark grayish brown (2.5Y 4/2) crushed, moist; silty clay loam; 33 percent clay; weak coarse prismatic parts to weak medium subangular blocky structure; hard when dry, firm, very sticky, moderately plastic; moderately slow permeability; 0.8 very fine and fine roots and 0.8 medium roots; 3.0 very fine tubular pores; 3 percent faint clay films on faces of peds and in pores; fragments; strong effervescence; moderately alkaline, pH 8.0, thymol-blue; clear wavy boundary. Lab sample # 99P02079. patchy - phpvsfiid 202636; patchy - phpvsfiid 202636
    Bk1—86 to 96 centimeters (33.9 to 37.8 inches); pale brown (10YR 6/3), brown (10YR 5/3) crushed, moist; clay loam; 28 percent clay; weak medium subangular blocky, and moderate medium subangular blocky structure; hard when dry, firm, very sticky, moderately plastic; moderate permeability; 0.8 very fine and fine roots; 12.0 very fine and fine tubular pores; fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; clear smooth boundary. Lab sample # 99P02080. Found cicada cast.
    Bk2—96 to 125 centimeters (37.8 to 49.2 inches); brown (10YR 5/3), brown (10YR 4/3) crushed, moist; silty clay; 44 percent clay; weak coarse prismatic parts to moderate fine angular blocky structure; very hard, very firm, very sticky, very plastic; slow permeability; 0.7 very fine and fine roots; 15.0 very fine and fine tubular pores; 4 percent faint clay films on horizontal faces of peds; fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; clear smooth boundary. Lab sample # 99P02081. patchy - phpvsfiid 202637; patchy - phpvsfiid 202637
    C—125 to 152 centimeters (49.2 to 59.8 inches); light brownish gray (10YR 6/2), dark grayish brown (10YR 4/2), moist; silty clay loam; 35 percent clay; 1 percent strong brown (7.5YR 4/6) fine distinct and 1 percent dark yellowish brown (10YR 4/6) fine distinct mottles; moderate fine platy, and moderate medium and coarse platy structure; hard when dry, friable, moderately sticky, moderately plastic; slow permeability; 0.7 very fine and fine roots; 10.0 very fine and fine tubular pores; fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; abrupt smooth boundary. Lab sample # 99P02082
    ABb—152 to 170 centimeters (59.8 to 66.9 inches); brown (10YR 5/3), dark brown (10YR 3/3) and dark grayish brown (10YR 4/2) crushed, moist; clay loam; 32 percent clay; weak coarse prismatic parts to moderate medium subangular blocky structure; hard when dry, firm, very sticky, moderately plastic; moderately slow permeability; 15.0 fine and medium tubular pores; fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; clear smooth boundary. Lab sample # 99P02083
    Btb—170 to 200 centimeters (66.9 to 78.7 inches); pale brown (10YR 6/3), dark grayish brown (10YR 4/2), moist; clay loam; 35 percent clay; weak coarse prismatic parts to moderate medium subangular blocky structure; very hard, friable, very sticky, very plastic; slow permeability; 4.0 very fine and fine tubular pores; 12 percent faint clay films on faces of peds and in pores; fragments; strong effervescence; moderately alkaline, pH 8.0, thymol-blue. Lab sample # 99P02084. patchy - phpvsfiid 202638; patchy - phpvsfiid 202638