IDENTIFIERS

  • Current Taxon Name (Soil Name): MARCOU
  • OSD
  • Series Extent
  • User Site ID: S1984AZ017003
  • User Pedon ID: 84AZ017003
  • Vegetation Plot ID: S1984AZ017003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0215
  • NCSS Pedon Lab Data NASIS Record ID - 55931
  • Print Date: 12/4/2024

    • 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: 35.0166664
  • Std. Longitude: -110.3327789
  • Datum: WGS84
  • Township: 19N
  • Range: 19E
  • Section: 28
  • PLSS Details: 2700 feet W and 2200 feet N of SE corner
  • Location Description: Navajo County, Arizona. Central Part.
  • State: Arizona
  • County: AZ017—Navajo
  • MLRA: 35—Colorado Plateau
  • Non-MLRA Soil Survey Area: AZ633—Navajo County Area, Arizona, Central Part

    • PEDON

  • Current Taxonomic Class: Coarse-loamy, mixed, mesic Typic Torriorthents
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Correlated Information:
  • Soil Name - MARCOU
  • Classificaton Date - 7/16/2007
  • Moisture Class - aridic (torric)
  • Sampled As Information:
  • Soil Name - Marcou
  • Taxonomic Class - Coarse-loamy, mixed, mesic Typic Camborthid
  • Taxon Kind - series
  • Classificaton Date - 6/1/1984
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: gently sloping transverse dune on gently sloping fan terrace
  • Drainage Class: somewhat excessively
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1984 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: wind erosion, water erosion rill
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ACHY

    ATCAC

    CHRYS9

    GUSA2

    PLJA

    SPAI

    SPCR

    YUCCA

    Achnatherum hymenoides

    Atriplex canescens var. canescens

    Chrysothamnus

    Gutierrezia sarothrae

    Pleuraphis jamesii

    Sporobolus airoides

    Sporobolus cryptandrus

    Yucca

    Indian ricegrass

    fourwing saltbush

    rabbitbrush

    broom snakeweed

    James' galleta

    alkali sacaton

    sand dropseed

    yucca

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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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    1585

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    0

    203

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    A1—0 to 15 centimeters (0.0 to 5.9 inches); dark reddish gray (5YR 4/2), pinkish gray (5YR 6/2), dry; sandy loam; 18 percent clay; weak fine platy structure; loose, loose, slightly sticky, nonplastic; 21.0 very fine roots and 21.0 fine roots; 21.0 very fine vesicular pores; fragments; slight effervescence; moderately alkaline, pH 8.4; clear smooth boundary.
    A2—15 to 25 centimeters (5.9 to 9.8 inches); reddish brown (5YR 5/3), light reddish brown (5YR 6/3), dry; sandy loam; 18 percent clay; massive; soft, very friable, slightly sticky, nonplastic; 21.0 very fine roots and 21.0 fine roots; 3.0 very fine tubular and 3.0 fine tubular pores; fragments; slight effervescence; strongly alkaline, pH 8.6; abrupt smooth boundary.
    Bw—25 to 48 centimeters (9.8 to 18.9 inches); reddish brown (5YR 5/3), light reddish brown (5YR 6/3), dry; sandy loam; 18 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, nonplastic; 21.0 very fine roots and 21.0 fine roots; 3.0 very fine tubular and 3.0 very fine interstitial and 3.0 fine tubular and 3.0 fine interstitial pores; 30 percent pressure faces; fragments; slight effervescence; strongly alkaline, pH 8.8; clear smooth boundary. Lab sample # 85P01095
    Bk—48 to 81 centimeters (18.9 to 31.9 inches); reddish brown (5YR 5/3), light reddish brown (5YR 6/3), dry; sandy loam; 18 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, nonplastic; 3.0 very fine roots and 3.0 fine roots; 3.0 very fine tubular and 3.0 very fine interstitial and 3.0 fine tubular and 3.0 fine interstitial pores; 30 percent pressure faces; 3 percent fine carbonate masses lining pores; fragments; strong effervescence; strongly alkaline, pH 8.8; abrupt smooth boundary. Lab sample # 85P01096
    2Bk1—81 to 119 centimeters (31.9 to 46.9 inches); reddish brown (5YR 5/3), light reddish brown (5YR 6/3), dry; sandy clay loam; 18 percent clay; moderate medium subangular blocky structure; slightly hard, friable, moderately sticky, slightly plastic; 3.0 very fine roots and 3.0 fine roots; 3.0 very fine tubular and 3.0 very fine interstitial and 3.0 fine tubular and 3.0 fine interstitial pores; 30 percent pressure faces; 3 percent fine carbonate masses lining pores and 3 percent fine weakly coherent cemented carbonate masses; fragments; strong effervescence; strongly alkaline, pH 9.0; abrupt smooth boundary.
    2Bk2—119 to 152 centimeters (46.9 to 59.8 inches); reddish brown (5YR 5/3), light reddish brown (5YR 6/3), dry; sandy loam; 18 percent clay; weak medium subangular blocky structure; slightly hard, friable, moderately sticky, nonplastic; 0.5 very fine roots and 0.5 fine roots; 3.0 very fine tubular and 3.0 very fine interstitial and 3.0 fine tubular and 3.0 fine interstitial pores; 3 percent fine carbonate masses lining pores; fragments; strong effervescence; strongly alkaline, pH 9.0.