IDENTIFIERS

  • Current Taxon Name (Soil Name): Richfield
  • OSD
  • Series Extent
  • User Site ID: S1994CO121003
  • User Pedon ID: 94CO121003
  • User Site Association ID: mlra72-benchmark lab pedons
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 95P0011
  • NCSS Pedon Lab Data NASIS Record ID - 67029
  • Print Date: 5/31/2024

    • 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: 39.9400558
  • Std. Longitude: -103.3064194
  • Datum: WGS84
  • State: Colorado
  • County: CO121—Washington
  • MLRA: 67—Central High Plains
  • Non-MLRA Soil Survey Area: CO121—Washington County, Colorado

    • PEDON

  • Describers Name: M.L. Petersen
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Sampled As Information:
  • Soil Name - Richfield
  • Taxonomic Class - Fine, montmorillonitic Aridic Argiustolls
  • PSC - 16 to 46 cm.
  • Classificaton Date - 9/13/1994
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: plains
  • Geomorphic Component Hills: nose slope
  • Hill Slope Profile: shoulder
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: very low
  • Drainage Class: well
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/13/1994 (actual site observation date)
  • Air Photo ID: 28
  • 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: wind erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    0—16

    16—46

    —-

    —-
    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

    1

    2500

    900

    1500

    —

    312

    370

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 16 centimeters (0.0 to 6.3 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; silt loam; 23 percent clay; weak fine subangular blocky parts to moderate fine and medium granular structure; soft, very friable, slightly sticky, slightly plastic; low toughness; moderate permeability; 10.0 very fine and fine roots throughout and 4.0 medium roots throughout; 3.0 very fine to medium moderate-continuity tubular and 0.5 very fine and fine low-continuity dendritic tubular and 0.5 very fine and fine low-continuity interstitial pores; fragments; noneffervescent, by hcl, unspecified; clear smooth boundary. Lab sample # 95P00075; dry when described;
    Bt1—16 to 32 centimeters (6.3 to 12.6 inches); brown (10YR 5/3), dark brown (10YR 3/3) crushed, moist; silty clay loam; 37 percent clay; moderate fine prismatic parts to moderate fine subangular blocky structure; hard, firm, very sticky, very plastic; high toughness; slow permeability; 8.0 very fine and fine roots throughout; 0.5 very fine to medium low-continuity dendritic tubular and 5.0 very fine and fine low-continuity interstitial and tubular pores; 1 percent distinct organic stains on vertical faces of peds and 2 percent distinct clay films on faces of peds and in pores and 6 percent distinct clay films in root channels and/or pores; fragments; noneffervescent, by hcl, unspecified; clear wavy boundary. Lab sample # 95P00076; dry when described;. discontinuous - phpvsfiid 194096; patchy - phpvsfiid 194095; discontinuous - phpvsfiid 194097; discontinuous - phpvsfiid 194096; patchy - phpvsfiid 194095; discontinuous - phpvsfiid 194097
    Bt2—32 to 46 centimeters (12.6 to 18.1 inches); yellowish brown (10YR 5/4) exterior, dark brown (10YR 3/3) crushed, moist; silty clay loam; 39 percent clay; weak fine and medium prismatic parts to moderate fine and medium subangular blocky structure; very hard, firm, very sticky, very plastic; high toughness; slow permeability; 6.0 very fine and fine roots throughout; 2.0 fine and medium low-continuity interstitial and 3.0 fine and medium moderate-continuity tubular pores; 2 percent distinct clay films in root channels and/or pores and 4 percent distinct clay films on all faces of peds; fragments; noneffervescent, by hcl, unspecified; clear wavy boundary. Lab sample # 95P00077; dry when described;. continuous - phpvsfiid 194098; patchy - phpvsfiid 194099; continuous - phpvsfiid 194098; patchy - phpvsfiid 194099
    Bk—46 to 64 centimeters (18.1 to 25.2 inches); light gray (10YR 7/2) exterior and pale brown (10YR 6/3) broken face, brown (10YR 5/3) crushed, moist; silty clay loam; 29 percent clay; weak medium prismatic parts to weak fine and medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; medium toughness; moderately slow permeability; 4.0 fine roots throughout; 2.0 very fine and fine moderate-continuity continuous tubular and 0.5 fine and medium low-continuity vesicular and 4.0 fine and medium moderate-continuity interstitial and tubular pores; 7 percent prominent carbonate coats on all faces of peds; 2 percent fine irregular noncoherent cemented lime masses throughout and 7 percent fine and medium threadlike noncoherent cemented carbonate threads throughout; fragments; 4 percent krotovinas (volume percent); violent effervescence, by hcl, unspecified; gradual wavy boundary. Lab sample # 95P00078; dry when described;. patchy - phpvsfiid 194100; patchy - phpvsfiid 194100
    C1—64 to 113 centimeters (25.2 to 44.5 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; loam; weak coarse prismatic structure; soft, very friable, slightly sticky, moderately plastic; medium toughness; moderate permeability; 2.0 very fine roots throughout; 3.0 very fine and fine moderate-continuity continuous tubular and 3.0 very fine and fine moderate-continuity interstitial and tubular and 2.0 fine and medium low-continuity vesicular pores; 2 percent fine threadlike noncoherent cemented carbonate threads throughout; fragments; violent effervescence, by hcl, unspecified; gradual smooth boundary. Lab sample # 95P00079; dry when described;
    C2—113 to 153 centimeters (44.5 to 60.2 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; very fine sandy loam; massive; soft, very friable, slightly sticky, slightly plastic; low toughness; moderate permeability; 2.0 very fine roots throughout; 1.0 very fine and fine moderate-continuity vesicular and 4.0 fine and medium moderate-continuity tubular pores; fragments; violent effervescence, by hcl, unspecified; gradual smooth boundary. Lab sample # 95P00080; dry when described;
    C3—153 to 290 centimeters (60.2 to 114.2 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; very fine sandy loam; massive; soft, very friable, nonsticky, slightly plastic; low toughness; moderate permeability; 0.5 very fine roots throughout; 0.5 very fine and fine low-continuity vesicular and 3.0 fine and medium low-continuity tubular pores; fragments; violent effervescence, by hcl, unspecified. Lab sample # 95P00081; dry when described;