IDENTIFIERS

  • Current Taxon Name (Soil Name): DEVEN
  • OSD
  • Series Extent
  • User Site ID: S1973CA049010
  • User Pedon ID: S1973CA049010
  • Vegetation Plot ID: S1973CA049010
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 73C0101
  • NCSS Pedon Lab Data NASIS Record ID - 44735
  • Print Date: 11/11/2024

    • 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: 41.5055542
  • Std. Longitude: -120.6324997
  • Datum: WGS84
  • Township: 42N
  • Range: 12E
  • Section: 6
  • Location Description: Modoc County, California. This site is located 75 feet E of Crowder Flat Road, 0.9 miles S of the Modoc National Forest boundary. Alturas SSA.
  • State: California
  • County: CA049—Modoc
  • MLRA: 21—Klamath and Shasta Valleys and Basins
  • Non-MLRA Soil Survey Area: CA603—Modoc County, California, Alturas Area
  • 7.5 Minute USGS Quad: 41120-E6—Big Sage Reservoir, California

    • PEDON

  • Current Taxonomic Class: Clayey, montmorillonitic Lithic Argixerolls
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 10
  • Correlated Information:
  • Soil Name - DEVEN
  • PSC - 5 to 50 cm.
  • Classificaton Date - 3/12/2002
  • Moisture Class - aridic (torric)
  • Sampled As Information:
  • Soil Name - Deven
  • Classificaton Date - 6/1/1973
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: nearly level lava plateau
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1973 (actual site observation date)
  • Air Photo ID: 7DD-25
  • 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

    ACOCC

    BRASS2

    BRTE

    JUOC

    POA

    PURSH

    Achnatherum occidentale ssp. californicum

    Brassica

    Bromus tectorum

    Juniperus occidentalis

    Poa

    Purshia

    California needlegrass

    mustard

    cheatgrass

    western juniper

    bluegrass

    bitterbrush

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

    mollic epipedon

    argillic horizon

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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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    1500

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    0

    305

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    7

    19

    -2

    11

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    A1—0 to 5 centimeters (0.0 to 2.0 inches); brown (10YR 5/3), dark brown (7.5YR 3/2), moist; loam; moderate fine granular structure; soft, very friable, slightly sticky, slightly plastic; 3.0 very fine roots; 21.0 very fine interstitial pores; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # 73C00688
    B1T—5 to 18 centimeters (2.0 to 7.1 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; clay loam; moderate medium subangular blocky, and moderate coarse subangular blocky structure; hard, very friable, moderately sticky, moderately plastic; 3.0 very fine roots and 3.0 medium roots and 3.0 fine roots; 0.5 very fine interstitial and 3.0 very fine tubular pores; 75 percent clay films on all faces of peds and 75 percent clay films on surfaces along pores; fragments; slightly acid, pH 6.5; clear wavy boundary. Lab sample # 73C00689
    B21T—18 to 40 centimeters (7.1 to 15.7 inches); dark reddish brown (5YR 3/4), dark reddish brown (5YR 3/2), moist; clay; moderate medium angular blocky, and moderate coarse angular blocky structure; hard, very friable, moderately sticky, moderately plastic; 0.5 very fine roots and 3.0 medium roots and 3.0 fine roots; 0.5 very fine interstitial and 0.5 very fine tubular pores; clay films on all faces of peds and clay films on surfaces along pores; fragments; slightly acid, pH 6.5; abrupt wavy boundary. Lab sample # 73C00690. continuous - phpvsfiid 171957; continuous - phpvsfiid 171958; continuous - phpvsfiid 171957; continuous - phpvsfiid 171958
    B22T—40 to 50 centimeters (15.7 to 19.7 inches); dark reddish brown (5YR 3/4), dark reddish brown (5YR 3/2), moist; clay; moderate medium angular blocky structure; hard, very friable, moderately sticky, moderately plastic; 3.0 very fine roots and 3.0 fine roots; 0.5 very fine interstitial and 0.5 very fine tubular pores; clay films on all faces of peds and clay films on surfaces along pores; fragments; slightly acid, pH 6.5; abrupt irregular boundary. Lab sample # 73C00691. continuous - phpvsfiid 171955; continuous - phpvsfiid 171956; continuous - phpvsfiid 171955; continuous - phpvsfiid 171956
    R—50 to 60 centimeters (19.7 to 23.6 inches); gray (N 5/0) bedrock; fragments. Lab sample # 73C00692