IDENTIFIERS

  • Current Taxon Name (Soil Name): Weld
  • OSD
  • Series Extent
  • User Site ID: S2010CO121045AWS
  • User Pedon ID: S2010CO121013
  • Vegetation Plot ID: S2010CO121045AWS
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 10N0969
  • NCSS Pedon Lab Data NASIS Record ID - 36941
  • Print Date: 11/11/2024

    • 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: 39.6849722
  • Std. Longitude: -103.1731944
  • Datum: WGS84
  • Township: 4S
  • Range: 52W
  • Section: 23
  • PLSS Details: 1,740 feet East and 482 feet North from the southwest corner
  • Map Unit: 78—Weld silt loam, 0 to 3 percent slopes
  • State: Colorado
  • County: CO121—Washington
  • MLRA: 67B—Central High Plains, Southern Part
  • MLRA Soil Survey Area: NW-FTM—Fort Morgan, Colorado
  • Non-MLRA Soil Survey Area: CO121—Washington County, Colorado
  • 7.5 Minute USGS Quad: 39103-F2—Anton, Colorado

    • PEDON

  • Describers Name: Andy Steinert, Mike Moore, Chad Remley, Bill Wehmueller
  • Current Taxonomic Class: Fine, smectitic, mesic Aridic Argiustolls
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Pedon #: 45
  • Sampled As Information:
  • Soil Name - Weld
  • Taxonomic Class - Fine, smectitic, mesic Aridic Argiustolls
  • PSC - 15 to 48 cm.
  • Classificaton Date - 5/21/2010
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - ustic
  • Moisture SUBClass - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Landform: plain
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 8.00 percent nonflat subrounded 2- to 20-millimeter mixed,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/21/2010 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - pastureland, tame
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - overcast
  • Current Air Temp - 13
    • 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 % % % % % % % % % % % % %

    Bk

    Bk

    2C1

    2C1

    2C2

    2C2

    48

    48

    113

    113

    198

    198

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    113

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    198

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    237

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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

    Bk

    Bk

    2C1

    2C1

    2C2

    2C2

    48

    48

    113

    113

    198

    198

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    113

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    198

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    237

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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 %

    Bk

    Bk

    2C1

    2C1

    2C2

    2C2

    48

    48

    113

    113

    198

    198

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    113

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    198

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    237

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    9

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

    BOCU

    BOGR2

    ERAS2

    MEOF

    OPPO

    PASM

    SPCR

    Bouteloua curtipendula

    Bouteloua gracilis

    Erysimum asperum

    Melilotus officinalis

    Opuntia polyacantha

    Pascopyrum smithii

    Sporobolus cryptandrus

    sideoats grama

    blue grama

    western wallflower

    sweetclover

    plains pricklypear

    western wheatgrass

    sand dropseed

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

    mollic epipedon

    argillic horizon

    0—48

    15—48

    —48—

    —33—
    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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    1471.6

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    5

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    Ap—0 to 15 centimeters (0.0 to 5.9 inches); grayish brown (10YR 5/2) broken face, dark brown (7.5YR 3/2) broken face, moist; clay loam; 33 percent sand; 35 percent silt; 32 percent clay; weak very fine and fine subangular blocky, and weak fine granular structure; very hard, friable, moderately sticky, moderately plastic; Ksat of 2.82 um/s; moderately slow permeability; 3.0 very fine roots throughout and 3.0 fine roots throughout; 10 percent by volume nonflat subrounded 2-5-20 millimeter mixed fragments; noneffervescent, by hcl, 3n; slightly alkaline, pH 7.4, phenol red; clear smooth boundary. Lab sample # 10N04593, 10N04587; observed in trench
    Bt1—15 to 33 centimeters (5.9 to 13.0 inches); brown (10YR 4/3) broken face, dark brown (7.5YR 3/2) broken face, moist; clay; 32 percent sand; 25 percent silt; 43 percent clay; strong medium prismatic parts to strong fine and medium angular blocky structure; extremely hard, firm, very sticky, very plastic; Ksat of 0.915 um/s; slow permeability; 3.0 very fine roots throughout and 2.0 fine roots throughout; 15 percent prominent dark grayish brown (10YR 4/2) clay films on all faces of peds; 10 percent by volume nonflat subrounded 2-5-20 millimeter mixed fragments; noneffervescent, by hcl, 3n; slightly alkaline, pH 7.4, phenol red; clear wavy boundary. Lab sample # 10N04588; observed in trench. continuous - phpvsfiid 682657; continuous - phpvsfiid 682657
    Bt2—33 to 48 centimeters (13.0 to 18.9 inches); brown (10YR 5/3) broken face, dark brown (7.5YR 3/3) broken face, moist; clay; 32 percent sand; 25 percent silt; 43 percent clay; strong medium prismatic parts to moderate fine and medium angular blocky structure; extremely hard, firm, very sticky, very plastic; Ksat of 0.915 um/s; slow permeability; 3.0 very fine roots throughout and 2.0 fine roots throughout; 12 percent prominent clay films on all faces of peds; 5 percent by volume nonflat subrounded 2-5-20 millimeter mixed fragments; noneffervescent, by hcl, 3n; slightly alkaline, pH 7.6, phenol red; clear wavy boundary. Lab sample # 10N04589; observed in trench. continuous - phpvsfiid 682658; continuous - phpvsfiid 682658
    Bk—48 to 113 centimeters (18.9 to 44.5 inches); pale brown (10YR 6/3) broken face, brown (10YR 4/3) broken face, moist; loam; 35 percent sand; 40 percent silt; 25 percent clay; moderate medium prismatic parts to moderate fine and medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; Ksat of 9.17 um/s; moderate permeability; 3.0 very fine roots throughout and 1.0 fine roots throughout; carbonate, finely disseminated throughout and 2 percent fine threadlike carbonate masses on faces of peds; 2 percent by volume nonflat subrounded 2-3-5 millimeter mixed fragments; strong effervescence, by hcl, 3n; moderately alkaline, pH 8.4, thymol-blue; clear wavy boundary. Lab sample # 10N04590; observed in trench
    2C1—113 to 198 centimeters (44.5 to 78.0 inches); light yellowish brown (10YR 6/4) broken face, brown (10YR 4/3) broken face, moist; fine sandy loam; 69 percent sand; 20 percent silt; 11 percent clay; weak coarse and very coarse prismatic structure; moderately hard, friable, nonsticky, nonplastic; Ksat of 28.225 um/s; moderately rapid permeability; 1.0 very fine roots throughout; carbonate, finely disseminated throughout and 1 percent fine irregular carbonate masses on faces of peds; fragments; strong effervescence, by hcl, 3n; strongly alkaline, pH 8.6, thymol-blue; gradual wavy boundary. Lab sample # 10N04591; observed in trench
    2C2—198 to 237 centimeters (78.0 to 93.3 inches); light yellowish brown (10YR 6/4) broken face, dark yellowish brown (10YR 4/4) broken face, moist; sandy loam; 72 percent sand; 20 percent silt; 8 percent clay; structureless massive; moderately hard, friable, nonsticky, nonplastic; Ksat of 28.225 um/s; moderately rapid permeability; carbonate, finely disseminated throughout and 1 percent fine irregular carbonate masses on faces of peds; fragments; slight effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue. Lab sample # 10N04592; observed in trench