IDENTIFIERS

  • Current Taxon Name (Soil Name): COTHARIN
  • OSD
  • Series Extent
  • User Site ID: S1999CA111003
  • User Pedon ID: 99CA111003
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 99P0343
  • NCSS Pedon Lab Data NASIS Record ID - 11202
  • 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: 34.0872345
  • Std. Longitude: -118.9125824
  • Datum: WGS84
  • Township: 1S
  • Range: 18W
  • Section: 18
  • PLSS Details: About 3,750 feet east and 700 feet south of the northwest corner
  • Location Description: 1 mile west of Arroyo Sequit
  • State: California
  • County: CA037—Los Angeles
  • MLRA: 20—Southern California Mountains
  • Non-MLRA Soil Survey Area: CA692—Santa Monica Mountains National Recreation Area
  • 7.5 Minute USGS Quad: 34118-A8—Triunfo Pass, California

    • PEDON

  • Describers Name: Al Wasner
  • Current Taxonomic Class: Loamy, mixed, thermic, shallow Entic Haploxerolls
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 3
  • Sampled As Information:
  • Soil Name - COTHARIN
  • Taxonomic Class - Loamy, mixed, thermic, shallow Entic Haploxerolls
  • PSC - 0 to 25 cm.
  • Classificaton Date - 3/31/1999
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: colluvium derived from andesite and/or residuum weathered from andesite
  • Landscape: hills
  • Landform: hill
  • Geomorphic Component Hills: side slope
  • Slope Shape Down: convex
  • Runoff: very high
  • Drainage Class: well
  • Ponding: none ponding
  • Bedrock: moderately coherent at 28cm with <10
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/31/1999 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - other
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    paralithic contact

    0—20

    25—152

    —-

    —-
    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

    40

    —

    —

    226

    —

    0

    534

    —

    330

    16.5

    —

    —

    17.5

    —

    —

    —

    —

    —

    —

    —
    A—0 to 20 centimeters (0.0 to 7.9 inches); brown (10YR 4/3) crushed, dark brown (10YR 3/3) crushed, moist; loam; moderate fine subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 3.0 very fine to medium roots; 3.0 very fine to medium tubular pores; 5 percent by volume 2-39-75 millimeter andesite fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 99P01771
    A/C—20 to 25 centimeters (7.9 to 9.8 inches); dark yellowish brown (10YR 4/4) crushed, dark yellowish brown (10YR 3/4) crushed, moist; loam; moderate medium subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 3.0 very fine to medium roots; 3.0 very fine to medium tubular pores; 10 percent by volume 2-39-75 millimeter andesite fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 99P01772
    Cr—25 to 152 centimeters (9.8 to 59.8 inches); fragments.