IDENTIFIERS

  • Current Taxon Name (Soil Name): Raku
  • OSD
  • Series Extent
  • User Site ID: S05CO071002
  • User Pedon ID: 05CO071002
  • User Site Association ID: 05CO628 Characterization Samples05CO071 Characterization Samples
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Print Date: 11/26/2024

    • 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: 37.2831389
  • Std. Longitude: -104.3683611
  • Datum: WGS84
  • Township: 32 S.
  • Range: 62 W.
  • Section: 5
  • PLSS Details: 2250 feet north and 1750 feet east of the southwest corner
  • Location Description: About 1 mile east of Hoehne, Colorado.
  • Map Unit: RcA—Raku silt clay loam, 0 to 1 percent slopes
  • State: Colorado
  • County: CO071—Las Animas
  • MLRA: 67—Central High Plains
  • Non-MLRA Soil Survey Area: CO628—Las Animas County Area, Colorado, Parts of Huerfano and Las Animas Counties
  • 7.5 Minute USGS Quad: 37104-C3—Earl, Colorado

    • PEDON

  • Describers Name: LAN
  • Current Taxonomic Class: Fine, smectitic, mesic Torrertic Argiustolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 952
  • Sampled As Information:
  • Soil Name - Raku
  • Taxonomic Class - Fine, smectitic, mesic Torrertic Argiustolls
  • PSC - 8 to 58 cm.
  • Classificaton Date - 3/22/2005
  • Soil Taxonomic Edition - second edition
  • Moisture Class - ustic
  • Moisture SUBClass - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium derived from sedimentary rock
  • Landscape: plains
  • Landform: terrace
  • Geomorphic Component Terraces: tread
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/22/2005 (actual site observation date)
  • Air Photo ID: 21-G
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: wind and water erosion
    • 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 % % % % % % % % % % % % %

    Bt3

    Btk

    BCk

    Bk

    46

    86

    104

    122

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    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

    Bt3

    Btk

    BCk

    Bk

    46

    86

    104

    122

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    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 %

    Bt3

    Btk

    BCk

    Bk

    46

    86

    104

    122

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

    mollic epipedon

    argillic horizon

    0—28

    8—94

    —28—

    —86—
    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

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    1740

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    350

    406

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    11

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    A—0 to 8 centimeters (0.0 to 3.1 inches); dark grayish brown (10YR 4/2), very dark brown (10YR 2/2), moist; silty clay loam; 38 percent clay; moderate fine granular structure; slightly hard, friable, moderately sticky, slightly plastic; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; abrupt smooth boundary.; moist when described;
    Bt1—8 to 28 centimeters (3.1 to 11.0 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; clay; 44 percent clay; moderate fine angular blocky, and moderate medium subangular blocky structure; very hard, very firm, very sticky, very plastic; 40 percent distinct clay films on all faces of peds; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.4, hellige-truog; abrupt smooth boundary.; moist when described;. discontinuous - phpvsfiid 282676; discontinuous - phpvsfiid 282676
    Bt2—28 to 46 centimeters (11.0 to 18.1 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2) and dark grayish brown (10YR 4/2) crushed, moist; clay; 48 percent clay; moderate medium prismatic parts to moderate medium subangular blocky structure; extremely hard, very firm, very sticky, very plastic; 40 percent distinct clay films on all faces of peds; fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.5, hellige-truog; clear smooth boundary.; slightly moist when described;. discontinuous - phpvsfiid 282677; discontinuous - phpvsfiid 282677
    Bt3—46 to 86 centimeters (18.1 to 33.9 inches); brown (10YR 5/3), brown (10YR 4/3), moist; clay; 47 percent clay; moderate coarse prismatic parts to moderate fine and medium subangular blocky structure; extremely hard, very firm, very sticky, very plastic; 55 percent distinct clay films on all faces of peds; fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; abrupt smooth boundary.; dry when described;. continuous - phpvsfiid 282678; continuous - phpvsfiid 282678
    Btk—86 to 104 centimeters (33.9 to 40.9 inches); brown (10YR 5/3), brown (10YR 4/3), moist; clay; 42 percent clay; weak medium prismatic parts to moderate medium subangular blocky structure; extremely hard, firm, very sticky, very plastic; 1.0 fine roots; 35 percent distinct clay films on all faces of peds; 12 percent medium and coarse distinct irregular carbonate masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; clear smooth boundary.; dry when described;. discontinuous - phpvsfiid 282679; discontinuous - phpvsfiid 282679
    BCk—104 to 122 centimeters (40.9 to 48.0 inches); light brownish gray (10YR 6/2), brown (10YR 4/3), moist; clay loam; 28 percent clay; weak fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 15 percent medium distinct irregular carbonate masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; abrupt wavy boundary.; dry when described;. About 15 to 25 percent very fine sand.
    Bk—122 to 186 centimeters (48.0 to 73.2 inches); light brownish gray (10YR 6/2), brown (10YR 4/3), moist; silt loam; 24 percent clay; weak fine subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 5 percent fine distinct irregular carbonate masses throughout; 1 percent by volume nonflat subrounded indurated 2-4-5 millimeter unspecified fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog.; dry when described;. About 15 to 25 percent very fine sand.