IDENTIFIERS

  • Current Taxon Name (Soil Name): Torreon
  • OSD
  • Series Extent
  • User Site ID: 81CO628002
  • User Pedon ID: 81CO628002
  • Vegetation Plot ID: 81CO628002
  • Transect:
  • User Transect ID - 70TCO628155-To
  • Transect Stop Number - 2
  • Transect Interval - 500.0
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 87P0833
  • NCSS Pedon Lab Data NASIS Record ID - 60128
  • Print Date: 5/20/2024

    • 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: 37.0995000
  • Std. Longitude: -103.5725278
  • Datum: WGS84
  • Township: 34 S.
  • Range: 55 W.
  • Section: 10
  • PLSS Details: 1600 feet south and 800 feet east of the northwest corner
  • Location Description: 1600 feet south and 800 feet east of the northwest corner of section 10, T.34S., R.55W.
  • Map Unit: To—Torreon silt loam, 1 to 4 percent slopes
  • State: Colorado
  • County: CO071—Las Animas
  • MLRA: 70—Pecos-Canadian Plains and Valleys
  • Non-MLRA Soil Survey Area: CO628—Las Animas County Area, Colorado, Parts of Huerfano and Las Animas Counties
  • 7.5 Minute USGS Quad: 37103-A5—Cobert Mesa North, Colorado

    • PEDON

  • Describers Name: LAN
  • Current Taxonomic Class: Fine, smectitic, mesic Calcidic Argiustolls
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 353
  • Correlated Information:
  • Soil Name - Torreon
  • PSC - 13 to 66 cm.
  • Classificaton Date - 6/12/2012
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Torreon
  • Classificaton Date - 5/13/1981
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess and/or residuum weathered from basalt
  • Landscape: lava plateau
  • Landform: plain
  • Slope Position: middle third
  • Runoff: low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/13/1981 (actual site observation date)
  • Air Photo ID: 1-15
  • Plant Association Name: Loamy
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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 % % % % % % % % % % % % %

    Bt3

    Bt4

    Btk

    BCk

    Bk

    33

    48

    69

    97

    142

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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

    Bt4

    Btk

    BCk

    Bk

    33

    48

    69

    97

    142

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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

    Bt4

    Btk

    BCk

    Bk

    33

    48

    69

    97

    142

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    5

    13

    24

    28

    35

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    Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    BOGR2

    GUSA2

    MUTO2

    OPIMI

    OPPO

    PASM

    Bouteloua gracilis

    Gutierrezia sarothrae

    Muhlenbergia torreyi

    Opuntia imbricata var. imbricata

    Opuntia polyacantha

    Pascopyrum smithii

    blue grama

    broom snakeweed

    ring muhly

    tree cholla

    plains pricklypear

    western wheatgrass

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

    mollic epipedon

    argillic horizon

    calcic horizon

    0—33

    13—97

    69—142

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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

    1

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    1942

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    90

    406

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    10

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    11.1

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    A—0 to 13 centimeters (0.0 to 5.1 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; silt loam; 24 percent clay; moderate fine granular structure; slightly hard, very friable, slightly sticky, nonplastic; 10.0 fine and medium roots; fragments; noneffervescent; slightly alkaline, pH 7.4, hellige-truog; clear smooth boundary.; moist when described;
    Bt1—13 to 20 centimeters (5.1 to 7.9 inches); very dark grayish brown (10YR 3/2), dark grayish brown (10YR 4/2), moist; silty clay loam; 38 percent clay; weak medium prismatic parts to moderate medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 5.0 fine and medium roots; 15 percent distinct clay films on faces of peds; fragments; noneffervescent; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary.; moist when described;. patchy - phpvsfiid 111145; patchy - phpvsfiid 111145
    Bt2—20 to 33 centimeters (7.9 to 13.0 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; silty clay; 41 percent clay; moderate medium prismatic parts to moderate medium angular blocky structure; extremely hard, firm, very sticky, very plastic; 1.0 very fine and fine roots; 45 percent distinct clay films on faces of peds; 5 percent by volume nonflat subrounded indurated 2-39-75 millimeter unspecified fragments; noneffervescent; slightly alkaline, pH 7.8, hellige-truog; clear smooth boundary.; dry when described;. continuous - phpvsfiid 111146; continuous - phpvsfiid 111146
    Bt3—33 to 48 centimeters (13.0 to 18.9 inches); brown (10YR 5/3), brown (10YR 4/3), moist; silty clay; 40 percent clay; weak medium prismatic parts to moderate medium subangular blocky structure; extremely hard, firm, moderately sticky, moderately plastic; 0.5 very fine and fine roots; 45 percent distinct clay films on faces of peds; 5 percent by volume nonflat subrounded indurated 2-39-75 millimeter unspecified fragments; violent effervescence; slightly alkaline, pH 7.8, hellige-truog; clear wavy boundary.; dry when described;. continuous - phpvsfiid 111147; continuous - phpvsfiid 111147
    Bt4—48 to 69 centimeters (18.9 to 27.2 inches); brown (10YR 5/3), brown (10YR 4/3), moist; silty clay loam; 38 percent clay; weak medium prismatic parts to moderate medium subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; 0.1 very fine and fine roots; 40 percent distinct clay films on faces of peds; 10 percent by volume nonflat subrounded indurated 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary.; dry when described;. continuous - phpvsfiid 111148; continuous - phpvsfiid 111148
    Btk—69 to 97 centimeters (27.2 to 38.2 inches); pale brown (10YR 6/3), yellowish brown (10YR 5/4), moist; gravelly silty clay loam; 34 percent clay; weak medium subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; 0.1 very fine and fine roots; 20 percent distinct clay films on faces of peds; 1 percent fine irregular lime masses throughout; 2 percent by volume nonflat subrounded indurated 75-162-250 millimeter unspecified fragments and 13 percent by volume nonflat subrounded indurated 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.0, hellige-truog; abrupt wavy boundary.; dry when described;. patchy - phpvsfiid 111149; patchy - phpvsfiid 111149
    BCk—97 to 142 centimeters (38.2 to 55.9 inches); very pale brown (10YR 7/3), brown (10YR 5/3), moist; cobbly clay loam; 27 percent clay; massive; hard, firm, slightly sticky, slightly plastic; 1 percent fine irregular lime masses throughout; 5 percent by volume nonflat subrounded indurated 75-162-250 millimeter unspecified fragments and 10 percent by volume nonflat subrounded indurated 2-39-75 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.0, hellige-truog; gradual smooth boundary.; dry when described;
    Bk—142 to 178 centimeters (55.9 to 70.1 inches); light yellowish brown (10YR 6/4), yellowish brown (10YR 5/4), moist; very cobbly loam; 25 percent clay; massive; hard, friable, slightly sticky, slightly plastic; 3 percent by volume nonflat subrounded indurated 250-425-600 millimeter unspecified fragments and 20 percent by volume nonflat subrounded indurated 2-39-75 millimeter unspecified fragments and 25 percent by volume nonflat subrounded indurated 75-162-250 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.2, hellige-truog.; dry when described;