IDENTIFIERS

  • Current Taxon Name (Soil Name): Palos Verdes
  • OSD
  • Series Extent
  • User Site ID: S1974AZ019001
  • User Pedon ID: S1974AZ019001
  • Vegetation Plot ID: S1974AZ019001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 74C0172
  • NCSS Pedon Lab Data NASIS Record ID - 44933
  • Print Date: 11/25/2024

    • 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: 32.3499985
  • Std. Longitude: -110.9969406
  • Datum: WGS84
  • Township: 12S
  • Range: 13E
  • Section: 34
  • PLSS Details: 500 feet W and 400 feet S of the NE corner
  • Location Description: 350 feet W of St Marks Church
  • State: Arizona
  • County: AZ019—Pima
  • Non-MLRA Soil Survey Area: AZ669—Pima County, Arizona, Eastern Part

    • PEDON

  • Describers Name: J.Jay. M. Richardson, R. Barmore
  • Pedon Type: OSD pedon
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Palos Verdes
  • PSC - 3 to 48 cm.
  • Classificaton Date - 12/16/1974
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/16/1974 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    AMBRO

    FEROC

    LATR2

    MUMO

    OPHU

    PARKI2

    Ambrosia

    Ferocactus

    Larrea tridentata

    Muhlenbergia montana

    Opuntia humifusa

    Parkinsonia

    ragweed

    barrel cactus

    creosote bush

    mountain muhly

    devil's-tongue

    paloverde

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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

    2

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    762

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    A1—0 to 3 centimeters (0.0 to 1.2 inches); brown (7.5YR 4/4), brown (7.5YR 5/4), dry; gravelly sandy loam; weak medium platy structure; slightly hard, very friable, nonsticky, nonplastic; 0.5 fine roots; 21.0 fine interstitial pores; 30 percent by volume 2-?-75 millimeter unspecified fragments; noneffervescent; neutral, pH 7.0, cresol red; abrupt smooth boundary. Lab sample # 74C01013
    B1—3 to 8 centimeters (1.2 to 3.1 inches); brown (7.5YR 4/4), brown (7.5YR 5/4), dry; gravelly sandy loam; weak coarse platy parts to weak fine and medium subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots; 3.0 fine interstitial pores; 10 percent thin clay films on surfaces along pores; 20 percent by volume 2-?-75 millimeter unspecified fragments; noneffervescent; slightly alkaline, pH 7.5, cresol red; abrupt wavy boundary. Lab sample # 74C01014
    B21t—8 to 20 centimeters (3.1 to 7.9 inches); dark reddish brown (5YR 3/4), reddish brown (5YR 4/4), dry; gravelly sandy clay loam; weak medium subangular blocky structure; moderately hard, friable, moderately sticky, moderately plastic; 21.0 very fine and fine roots and 0.5 medium roots; 3.0 fine and medium tubular and 21.0 fine interstitial pores; clay films on surfaces along pores and 30 percent thin clay films on all faces of peds; 30 percent by volume 2-?-75 millimeter unspecified fragments; noneffervescent; slightly alkaline, pH 7.5, cresol red; clear wavy boundary. Lab sample # 74C01015
    B22t—20 to 38 centimeters (7.9 to 15.0 inches); dark reddish brown (5YR 3/4), reddish brown (5YR 4/4), dry; sandy clay; moderate medium subangular blocky structure; moderately hard, friable, moderately sticky, moderately plastic; 21.0 very fine roots and 0.5 fine and medium roots; 0.5 fine and medium tubular and 3.0 fine interstitial pores; 10 percent thick clay films on surfaces along pores and 75 percent thin clay films on all faces of peds; 30 percent by volume 2-?-75 millimeter unspecified fragments; noneffervescent; slightly alkaline, pH 7.5, cresol red; clear wavy boundary. Lab sample # 74C01016
    B3sica—38 to 48 centimeters (15.0 to 18.9 inches); reddish brown (5YR 4/3) and yellowish red (5YR 4/6), yellowish red (5YR 5/6) and reddish brown (5YR 4/4), dry; gravelly sandy loam; moderate coarse platy structure; very hard, firm, slightly sticky, slightly plastic; 21.0 very fine and fine roots between peds; 21.0 very fine tubular and 3.0 very fine interstitial pores; 30 percent thin clay films on all faces of peds; 30 percent by volume 75-?-250 millimeter unspecified fragments; violent effervescence; moderately alkaline, pH 8.2, cresol red; abrupt wavy boundary. Lab sample # 74C01017
    C1sica—48 to 97 centimeters (18.9 to 38.2 inches); light brown (7.5YR 6/4), pinkish white (7.5YR 8/2) and pink (7.5YR 8/4), dry; weak coarse platy structure; very hard, very firm, nonsticky, nonplastic; 21.0 very fine and fine roots between peds; 3.0 very fine tubular and 0.5 medium and coarse tubular pores; fragments; violent effervescence; moderately alkaline, pH 8.2, cresol red; clear wavy boundary. Lab sample # 74C01018
    C2sica—97 to 163 centimeters (38.2 to 64.2 inches); light brown (7.5YR 6/4), pinkish white (7.5YR 8/2) and pink (7.5YR 8/4), dry; gravelly loamy coarse sand; massive; very hard, very firm, nonsticky, nonplastic; 0.5 very fine and fine roots; 3.0 very fine and fine interstitial and 3.0 very fine and fine tubular and 0.5 coarse tubular pores; fragments; violent effervescence; moderately alkaline, pH 8.2, cresol red. Lab sample # 74C01019