IDENTIFIERS

  • Current Taxon Name (Soil Name): Wapiti
  • OSD
  • Series Extent
  • User Site ID: S2016CO123006
  • User Pedon ID: S2016CO123006
  • Vegetation Plot ID: S2016CO123006
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - KSSL
  • Lab Pedon # - 16N0630
  • User Project ID: CPER_010_NEON
  • Project Name: Central Plains Experimental Range
  • Print Date: 12/5/2025

    • 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: 40.8564167
  • Std. Longitude: -104.6915556
  • Datum: WGS84
  • Township: 10N
  • Range: 65W
  • Section: 5
  • PLSS Details: 1,315 feet east and 330 feet north from the southwest corner
  • Location Description: Soil pit located 6.45 meters at a 4 degree angle from the northeast corner of the 20m x 20m plot to the center of the soil pit.
  • Map Unit: 40—Nunn loam, 0 to 6 percent slopes
  • State: Colorado
  • County: CO123—Weld
  • MLRA: 67B—Central High Plains, Southern Part
  • MLRA Soil Survey Area: NW-FTM—Fort Morgan, Colorado
  • Non-MLRA Soil Survey Area: CO617—Weld County, Colorado, Northern Part
  • 7.5 Minute USGS Quad: 40104-G6—Eastman Creek South, Colorado

    • PEDON

  • Describers Name: Andy Steinert
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Calcidic Argiustolls
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: research site
  • Pedon Record Orgin: NASIS
  • Pedon #: 6
  • Sampled As Information:
  • Soil Name - Wapiti
  • Taxonomic Class - Fine-loamy, mixed, superactive, mesic Calcidic Argiustolls
  • Taxon Kind - series
  • PSC - 23 to 31 cm.
  • Classificaton Date - 3/22/2016
  • Classifier - Andy Steinert
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - ustic
  • Moisture SUBClass - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: eolian deposits
  • Landform: playa slope
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Runoff: medium
  • Ksat Class Upper: moderately high
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no
  • RaCA Information:
  • RaCA Site ID - CPER_017
  • DSP Plot ID - NE
  • Plot Baseline Azimuth - 4
  • Plot Baseline Length - 6
  • Plot Width - 20
  • Plot/Site Set Up By - Center of pit
  • Plot or Site Recorder - Andy Steinert

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/22/2016 (actual site observation date)
  • Data Collector: Andy Steinert
  • 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
  • Current Weather - partly cloudy
  • 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

    Bk1

    Bk2

    31

    31

    84

    84

    84

    100

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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

    Bk1

    Bk2

    31

    31

    84

    84

    84

    100

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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

    Bk1

    Bk2

    31

    31

    84

    84

    84

    100

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    19

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    16

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

    ARIST

    ATCA2

    BOGR2

    HECO26

    XACH3

    Aristida

    Atriplex canescens

    Bouteloua gracilis

    Hesperostipa comata

    Xanthoparmelia chlorochroa

    threeawn

    fourwing saltbush

    blue grama

    needle and thread

    xanthoparmelia lichen

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

    mollic epipedon

    argillic horizon

    secondary carbonates

    calcic horizon

    0—23

    23—31

    31—100

    31—100

    —23—

    —8—

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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

    3

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    1641.3

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    60

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    A—0 to 23 centimeters (0.0 to 9.1 inches); brown (10YR 5/3) broken face, very dark grayish brown (10YR 3/2) broken face, moist; sandy clay loam; 55 percent sand; 22 percent silt; 23 percent clay; weak fine subangular blocky, and weak medium subangular blocky, and weak fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; Ksat of 9.17 um/s; moderate permeability; few (1.0) very fine roots throughout and few (0.5) fine roots throughout and few (0.5) coarse roots throughout; carbonate, finely disseminated throughout; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, pH indicator solutions; clear smooth boundary. Lab sample # 16N02715; observed in pit, small
    Bt—23 to 31 centimeters (9.1 to 12.2 inches); pale brown (10YR 6/3) broken face, dark grayish brown (10YR 4/2) broken face, moist; sandy clay loam; 50 percent sand; 17 percent silt; 33 percent clay; weak medium prismatic, and moderate medium subangular blocky, and moderate coarse subangular blocky structure; moderately hard, friable, moderately sticky, moderately plastic; Ksat of 2.82 um/s; moderately slow permeability; common (1.0) very fine roots throughout and few (0.5) fine roots throughout; few (0.5) very fine vesicular and few (0.2) fine vesicular pores; 5 percent distinct clay films on vertical faces of peds and 5 percent distinct clay bridges on all faces of peds; carbonate, finely disseminated throughout; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, pH indicator solutions; clear wavy boundary. Lab sample # 16N02716; observed in pit, small. discontinuous - phpvsfiid 1555283; discontinuous - phpvsfiid 1555284; discontinuous - phpvsfiid 1555283; discontinuous - phpvsfiid 1555284
    Bk1—31 to 56 centimeters (12.2 to 22.0 inches); light gray (10YR 7/2) broken face, brown (10YR 5/3) broken face, moist; clay loam; 35 percent sand; 35 percent silt; 30 percent clay; weak coarse prismatic parts to moderate coarse subangular blocky, and weak coarse prismatic parts to moderate medium subangular blocky, and weak coarse prismatic parts to moderate fine subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; Ksat of 2.82 um/s; moderately slow permeability; few (0.5) very fine roots throughout and few (0.1) fine roots throughout; common (2.0) very fine tubular and few (0.5) fine tubular pores; carbonate, finely disseminated throughout and 1 percent fine irregular carbonate masses on faces of peds and 1 percent fine threadlike carbonate masses on faces of peds; fragments; strong effervescence, by hcl, 1n; strongly alkaline, pH 8.5, pH indicator solutions; gradual wavy boundary. Lab sample # 16N02717; observed in pit, small
    Bk1—56 to 84 centimeters (22.0 to 33.1 inches); light gray (10YR 7/2) broken face, brown (10YR 5/3) broken face, moist; clay loam; 35 percent sand; 35 percent silt; 30 percent clay; weak coarse prismatic parts to moderate coarse subangular blocky, and weak coarse prismatic parts to moderate medium subangular blocky, and weak coarse prismatic parts to moderate fine subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; Ksat of 2.82 um/s; moderately slow permeability; few (0.5) very fine roots throughout and few (0.1) fine roots throughout; common (2.0) very fine tubular and few (0.5) fine tubular pores; carbonate, finely disseminated throughout and 1 percent fine threadlike carbonate masses on faces of peds and 1 percent fine irregular carbonate masses on faces of peds; fragments; strong effervescence, by hcl, 1n; strongly alkaline, pH 8.5, pH indicator solutions; gradual wavy boundary. Lab sample # 16N02718; observed in pit, small
    Bk2—84 to 100 centimeters (33.1 to 39.4 inches); very pale brown (10YR 7/4) broken face, light yellowish brown (10YR 6/4) broken face, moist; loam; 30 percent sand; 44 percent silt; 26 percent clay; weak medium subangular blocky, and weak coarse subangular blocky structure; slightly hard, very friable, moderately sticky, slightly plastic; Ksat of 9.17 um/s; moderate permeability; few (0.5) very fine roots throughout; common (3.0) very fine tubular and common (2.0) fine tubular pores; carbonate, finely disseminated throughout and 1 percent coarse irregular carbonate masses on faces of peds and 1 percent medium irregular carbonate masses on faces of peds; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.4, pH indicator solutions. Lab sample # 16N02719; observed in pit, small