IDENTIFIERS

  • Current Taxon Name (Soil Name): Exchequer
  • OSD
  • Series Extent
  • User Site ID: S1976CA037100
  • User Pedon ID: S1976CA037100
  • Vegetation Plot ID: S1976CA037100
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3349
  • NCSS Pedon Lab Data NASIS Record ID - 38464
  • Print Date: 11/23/2024

    • 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: 34.4630547
  • Std. Longitude: -118.0836105
  • Datum: WGS84
  • Township: 4N
  • Range: 12W
  • Section: 1
  • PLSS Details: SW1/4,NE1/4,NE1/4
  • Location Description: Mount Emma, Tujunga Ranger District
  • Map Unit: 1—Exchequer family, 30 to 60 percent slopes
  • State: California
  • County: CA037—Los Angeles
  • MLRA: 20—Southern California Mountains
  • Non-MLRA Soil Survey Area: CA776—Angeles National Forest Area, California

    • PEDON

  • Describers Name: Tom Ryan
  • Current Taxonomic Class: Loamy, mixed, nonacid, thermic Lithic Xerorthents
  • Pedon Record Orgin: NASIS
  • Pedon #: 100
  • Correlated Information:
  • Soil Name - Exchequer
  • Classificaton Date - 2/12/2008
  • Sampled As Information:
  • Soil Name - Exchequer
  • Classificaton Date - 6/23/1976
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: granite
  • Landform: canyon
  • Geomorphic Component Hills: side slope
  • Slope Complexity: simple
  • Bedrock: granite with <10
  • Geology: Gr formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/23/1976 (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

    AGGI2

    BRDI3

    ERIOG

    JUNIP

    YUCCA

    Agrostis gigantea

    Bromus diandrus

    Eriogonum

    Juniperus

    Yucca

    redtop

    ripgut brome

    buckwheat

    juniper

    yucca

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

    lithic contact

    ochric epipedon

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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

    47

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    1280

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    135

    305

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    A11—0 to 8 centimeters (0.0 to 3.1 inches); dark brown (10YR 3/3), pale brown (10YR 6/3), dry; gravelly silt; moderate very fine and fine granular structure; soft, friable, nonsticky, nonplastic; 3.0 very fine and fine roots; 21.0 very fine interstitial and 21.0 very fine tubular pores; 35 percent by volume 2-?-76 millimeter unspecified fragments; neutral, pH 7.0; clear wavy boundary. Lab sample # 40A26118
    A12—8 to 25 centimeters (3.1 to 9.8 inches); brown (10YR 4/3), yellowish brown (10YR 5/4), dry; gravelly silt; moderate very fine and fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots; 21.0 very fine tubular and 21.0 very fine interstitial pores; 20 percent by volume 2-?-76 millimeter unspecified fragments; neutral, pH 7.0; abrupt wavy boundary. Lab sample # 40A26119
    R—25 centimeters (9.8 inches); bedrock; fragments. Lab sample # 40A26120