IDENTIFIERS

  • Current Taxon Name (Soil Name): Calcidic Haplustalfs
  • OSD
  • Series Extent
  • User Site ID: S2007CO087001
  • User Pedon ID: 07CO087001
  • Vegetation Plot ID: S2007CO087001
  • User Site Association ID: mlra72-benchmark lab pedons
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 07N0122
  • NCSS Pedon Lab Data NASIS Record ID - 19029
  • Print Date: 11/24/2024

    • 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: 40.4632759
  • Std. Longitude: -103.5596085
  • Datum: WGS84
  • Township: 6N
  • Range: 55W
  • Section: 29
  • PLSS Details: 784 feet south & 479 feet east of the northwest corner
  • Map Unit: HkB—Haxtun loamy sand, 0 to 3 percent slopes
  • State: Colorado
  • County: CO087—Morgan
  • MLRA: 67B—Central High Plains, Southern Part
  • Non-MLRA Soil Survey Area: CO087—Morgan County, Colorado
  • 7.5 Minute USGS Quad: 40103-D5—Antelope Springs, Colorado

    • PEDON

  • Describers Name: Andy Steinert
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Calcidic Haplustalfs
  • Current Taxon Kind: family
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Calcidic Haplustalfs
  • PSC - 36 to 71 cm.
  • Classificaton Date - 11/8/2013
  • Classifier - Andy Steinert
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - ustic
  • Moisture Subclass - aridic (torric)
  • Sampled As Information:
  • Soil Name - Haxtun
  • Taxonomic Class - Fine, smectitic, mesic Pachic Argiustolls
  • Taxon Kind - series
  • Classificaton Date - 10/31/2006
  • Classifier - Andy Steinert
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - ustic
  • Moisture SUBClass - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: old alluvium
  • Landform: upland terrace
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 3.00 percent nonflat subrounded 2- to 75-millimeter
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/31/2006 (actual site observation date)
  • Air Photo ID: 105
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - overcast
  • Current Air Temp - 4
    • 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 % % % % % % % % % % % % %

    Bk1

    Bk2

    Bk3

    Bk4

    C1

    C2

    71

    97

    125

    147

    160

    196

    97

    125

    147

    160

    196

    215

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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

    Bk1

    Bk2

    Bk3

    Bk4

    C1

    C2

    71

    97

    125

    147

    160

    196

    97

    125

    147

    160

    196

    215

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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 %

    Bk1

    Bk2

    Bk3

    Bk4

    C1

    C2

    71

    97

    125

    147

    160

    196

    97

    125

    147

    160

    196

    215

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    20

    7

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    11

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

    SCSC

    PAVI2

    SPCR

    BOCU

    Schizachyrium scoparium

    Panicum virgatum

    Sporobolus cryptandrus

    Bouteloua curtipendula

    little bluestem

    switchgrass

    sand dropseed

    sideoats grama

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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—71

    36—71

    71—97

    —71—

    —35—

    —26—
    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

    2

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    1373.7

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    260

    330

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    154

    9

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    CO3038

    Fort Morgan

    Wets
    Ap1—0 to 19 centimeters (0.0 to 7.5 inches); brown (10YR 5/3) broken face, very dark grayish brown (10YR 3/2) broken face, moist; loamy sand; 85 percent sand; 10 percent silt; 5 percent clay; weak fine granular structure; soft, very friable, nonsticky, nonplastic; Ksat of 91.74 um/s; rapid permeability; 6.0 very fine roots throughout and 2.0 medium roots throughout and 4.0 fine roots throughout; 2 percent by volume subrounded 2-3-20 millimeter unspecified fragments; noneffervescent, by hcl, 3n; neutral, pH 7.0, phenol red; clear smooth boundary. Lab sample # 07N00777; observed in trench
    Ap2—19 to 36 centimeters (7.5 to 14.2 inches); dark grayish brown (10YR 4/2) broken face, very dark grayish brown (10YR 3/2) broken face, moist; sandy clay loam; 55 percent sand; 22 percent silt; 23 percent clay; moderate medium and coarse subangular blocky structure; moderately hard, friable, slightly sticky, slightly plastic; Ksat of 9.17 um/s; moderate permeability; 8.0 very fine roots throughout and 1.0 medium roots throughout and 8.0 fine roots throughout; 4.0 very fine tubular and 4.0 fine tubular pores; 2 percent by volume subrounded 2-3-20 millimeter unspecified fragments; noneffervescent, by hcl, 3n; neutral, pH 7.0, phenol red; clear smooth boundary. Lab sample # 07N00778; observed in trench
    Bt—36 to 71 centimeters (14.2 to 28.0 inches); very dark gray (10YR 3/1) broken face, very dark brown (10YR 2/2) broken face, moist; clay loam; 40 percent sand; 23 percent silt; 37 percent clay; strong coarse prismatic parts to strong fine and medium prismatic parts to strong coarse subangular blocky structure; extremely hard, firm, very sticky, moderately plastic; Ksat of 2.82 um/s; moderately slow permeability; 4.0 very fine roots between peds and 2.0 medium roots between peds and 5.0 fine roots between peds; 5.0 very fine tubular and 2.0 medium tubular and 5.0 fine tubular pores; 40 percent prominent clay films on vertical faces of peds; 2 percent by volume subrounded 2-3-20 millimeter unspecified fragments; noneffervescent, by hcl, 3n; neutral, pH 7.2, phenol red; clear smooth boundary. Lab sample # 07N00779; observed in trench. continuous - phpvsfiid 1202533; continuous - phpvsfiid 1202533
    Bk1—71 to 97 centimeters (28.0 to 38.2 inches); light gray (10YR 7/2) broken face, brown (10YR 5/3) broken face, moist; clay loam; 40 percent sand; 28 percent silt; 32 percent clay; moderate coarse prismatic parts to moderate medium and coarse subangular blocky, and moderate coarse prismatic parts to moderate fine subangular blocky structure; moderately hard, friable, slightly sticky, moderately plastic; Ksat of 2.82 um/s; moderately slow permeability; 4.0 very fine roots throughout and 1.0 medium roots throughout and 2.0 fine roots throughout; 5.0 very fine tubular and 3.0 medium tubular and 4.0 fine tubular pores; carbonate, finely disseminated throughout and 3 percent fine threadlike carbonate masses on faces of peds and 7 percent medium and coarse irregular carbonate masses on faces of peds; 2 percent by volume subrounded 2-3-20 millimeter unspecified fragments; violent effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue; clear smooth boundary. Lab sample # 07N00780; observed in trench
    Bk2—97 to 125 centimeters (38.2 to 49.2 inches); pale brown (10YR 6/3) broken face, brown (10YR 4/3) broken face, moist; clay loam; 40 percent sand; 30 percent silt; 30 percent clay; weak extremely coarse prismatic parts to moderate medium and coarse subangular blocky structure; moderately hard, friable, slightly sticky, moderately plastic; Ksat of 2.82 um/s; moderately slow permeability; 3.0 very fine roots throughout and 2.0 fine roots throughout; 5.0 very fine tubular and 2.0 medium tubular and 3.0 fine tubular pores; 3 percent fine threadlike carbonate masses on faces of peds and 2 percent medium irregular carbonate masses on faces of peds; 2 percent by volume subrounded 2-3-20 millimeter unspecified fragments; strong effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue; clear smooth boundary. Lab sample # 07N00781; observed in trench
    Bk3—125 to 147 centimeters (49.2 to 57.9 inches); pale brown (10YR 6/3) broken face, brown (10YR 5/3) broken face, moist; loam; 45 percent sand; 31 percent silt; 24 percent clay; moderate medium and coarse subangular blocky, and weak coarse prismatic structure; slightly hard, friable, slightly sticky, slightly plastic; Ksat of 9.17 um/s; moderate permeability; 3.0 very fine roots throughout and 2.0 fine roots throughout; 4.0 very fine tubular and 3.0 medium tubular and 3.0 fine tubular pores; 4 percent fine threadlike carbonate masses on faces of peds; 2 percent by volume subrounded 2-3-20 millimeter unspecified fragments; strong effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue; clear wavy boundary. Lab sample # 07N00782; observed in trench
    Bk4—147 to 160 centimeters (57.9 to 63.0 inches); pale brown (10YR 6/3) broken face, brown (10YR 5/3) broken face, moist; loam; 45 percent sand; 33 percent silt; 22 percent clay; weak coarse prismatic parts to moderate medium and coarse subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; Ksat of 9.17 um/s; moderate permeability; 2.0 very fine roots throughout and 1.0 fine roots throughout; 3.0 medium tubular and 5.0 fine tubular pores; 2 percent fine threadlike carbonate masses lining pores and 1 percent fine threadlike carbonate masses on faces of peds and 8 percent fine and medium irregular carbonate masses on faces of peds; 2 percent by volume subrounded 2-3-20 millimeter unspecified fragments; strong effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue; clear smooth boundary. Lab sample # 07N00783; observed in trench
    C1—160 to 196 centimeters (63.0 to 77.2 inches); pale brown (10YR 6/3) broken face, brown (10YR 5/3) broken face, moist; sandy loam; 65 percent sand; 17 percent silt; 18 percent clay; massive; soft, very friable, slightly sticky, nonplastic; Ksat of 28.225 um/s; moderately rapid permeability; 2.0 fine roots throughout; 1.0 medium tubular and 4.0 fine tubular pores; 5 percent threadlike carbonate bands along lamina or strata surfaces; 10 percent by volume subrounded 2-3-20 millimeter unspecified fragments; strong effervescence, by hcl, 3n; moderately alkaline, pH 8.2, thymol-blue; clear smooth boundary. Lab sample # 07N00784; observed in trench
    C2—196 to 215 centimeters (77.2 to 84.6 inches); very pale brown (10YR 7/3) broken face, yellowish brown (10YR 5/4) broken face, moist; clay loam; 40 percent sand; 25 percent silt; 35 percent clay; moderate coarse and very coarse subangular blocky, and moderate medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; Ksat of 2.82 um/s; moderately slow permeability; 1.0 fine roots throughout; 5.0 medium tubular and 5.0 fine tubular pores; 5 percent threadlike carbonate bands along lamina or strata surfaces; 2 percent by volume subrounded 2-3-20 millimeter unspecified fragments; strong effervescence, by hcl, 3n; strongly alkaline, pH 8.5, thymol-blue. Lab sample # 07N00785; observed in trench