IDENTIFIERS

  • Current Taxon Name (Soil Name): Olnest
  • OSD
  • Series Extent
  • User Site ID: 96CO628004
  • User Pedon ID: 96CO628004
  • Vegetation Plot ID: 96CO628004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 97P0590
  • NCSS Pedon Lab Data NASIS Record ID - 10271
  • Print Date: 11/21/2024

    • 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: 37.3370000
  • Std. Longitude: -103.1067778
  • Datum: WGS84
  • Township: 31 S.
  • Range: 51 W.
  • Section: 23
  • PLSS Details: 50 feet south and 1,550 feet west of the northeast corner
  • Location Description: 50 feet south and 1,550 feet west of the northeast corner of section 23, T. 31 S., R. 51 W.
  • Map Unit: FtC—Olnest loam, 1 to 6 percent slopesOlC—Olnest loam, 1 to 6 percent slopes
  • State: Colorado
  • County: CO071—Las Animas
  • MLRA: 67B—Central High Plains, Southern Part
  • Non-MLRA Soil Survey Area: CO628—Las Animas County Area, Colorado, Parts of Huerfano and Las Animas Counties
  • 7.5 Minute USGS Quad: 37103-C1—Utleyville, Colorado

    • PEDON

  • Describers Name: LAN
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Aridic Haplustalfs
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 720
  • Sampled As Information:
  • Soil Name - Olnest
  • Taxonomic Class - Fine-loamy, mixed, superactive, mesic Aridic Haplustalfs
  • PSC - 8 to 53 cm.
  • Classificaton Date - 4/17/1996
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - ustic
  • Moisture SUBClass - aridic (torric)
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: eolian deposits
  • Landscape: plains
  • Landform: depression
  • Hill Slope Profile: footslope
  • Slope Position: upper third
  • Runoff: negligible
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/17/1996 (actual site observation date)
  • Air Photo ID: 34-G
  • 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
  • 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 % % % % % % % % % % % % %

    Btk

    Btk

    Bk1

    Bk1

    Bk2

    Bk2

    25

    25

    53

    53

    97

    97

    —

    53

    —

    97

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    183

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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

    Btk

    Btk

    Bk1

    Bk1

    Bk2

    Bk2

    25

    25

    53

    53

    97

    97

    —

    53

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    97

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    183

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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 %

    Btk

    Btk

    Bk1

    Bk1

    Bk2

    Bk2

    25

    25

    53

    53

    97

    97

    —

    53

    —

    97

    —

    183

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    8

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

    ACHY

    AGCR

    ARLOG

    BOCU

    BUDA

    MUTO2

    PAOB

    PASM

    Achnatherum hymenoides

    Agropyron cristatum

    Aristida longispica var. geniculata

    Bouteloua curtipendula

    Buchloe dactyloides

    Muhlenbergia torreyi

    Panicum obtusum

    Pascopyrum smithii

    Indian ricegrass

    crested wheatgrass

    slimspike threeawn

    sideoats grama

    buffalograss

    ring muhly

    vine mesquite

    western wheatgrass

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

    ochric epipedon

    argillic horizon

    secondary carbonates

    0—8

    8—53

    25—183

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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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    1609

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    140

    406

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    11.1

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    10.6

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    A—0 to 8 centimeters (0.0 to 3.1 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; loam; 20 percent clay; moderate fine granular structure; soft, very friable, slightly sticky, slightly plastic; 10.0 very fine to medium roots; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.4, hellige-truog; abrupt smooth boundary.; moist when described; observed in trench
    Bt—8 to 25 centimeters (3.1 to 9.8 inches); brown (10YR 4/3), dark grayish brown (10YR 4/2) crushed, moist; sandy clay loam; 24 percent clay; moderate fine and medium subangular blocky structure; very hard, friable, slightly sticky, slightly plastic; 1.0 very fine roots and 0.1 fine roots; 35 percent distinct clay films on faces of peds; fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.6, hellige-truog; abrupt wavy boundary.; moist when described;. continuous - phpvsfiid 111236; continuous - phpvsfiid 111236
    Btk—25 to 53 centimeters (9.8 to 20.9 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; sandy clay loam; 28 percent clay; moderate medium prismatic parts to moderate fine and medium subangular blocky structure; very hard, firm, slightly sticky, slightly plastic; 0.1 very fine roots; 35 percent distinct clay films between sand grains; 2 percent medium irregular carbonate masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; clear wavy boundary.; dry when described;. patchy - phpvsfiid 111237; patchy - phpvsfiid 111237
    Bk1—53 to 97 centimeters (20.9 to 38.2 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 4/4), moist; fine sandy loam; 16 percent clay; weak coarse subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 0.1 very fine roots; 15 percent distinct clay films between sand grains; 15 percent medium irregular carbonate masses throughout; fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.4, hellige-truog; clear smooth boundary.; dry when described;. patchy - phpvsfiid 111238; patchy - phpvsfiid 111238
    Bk2—97 to 183 centimeters (38.2 to 72.0 inches); light yellowish brown (10YR 6/4), dark yellowish brown (10YR 4/4), moist; fine sandy loam; 10 percent clay; massive; soft, very friable, nonsticky, nonplastic; 0.1 very fine roots; 2 percent medium irregular carbonate masses throughout; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2, hellige-truog.; dry when described;