IDENTIFIERS

  • Current Taxon Name (Soil Name): Scoured
  • OSD
  • Series Extent
  • User Site ID: S06CA063002
  • User Pedon ID: 789180
  • Vegetation Plot ID: S06CA063002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 07N0137
  • NCSS Pedon Lab Data NASIS Record ID - 19125
  • Print Date: 12/11/2024

    • 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: 40.4398333
  • Std. Longitude: -121.2800556
  • Datum: WGS84
  • State: California
  • County: CA063—Plumas
  • MLRA: 22B—Southern Cascade Mountains
  • Non-MLRA Soil Survey Area: CA789—Lassen Volcanic National Park, California
  • 7.5 Minute USGS Quad: 40121-D3—Mount Harkness, California

    • PEDON

  • Describers Name: AEC
  • Current Taxonomic Class: Medial-skeletal over fragmental or cindery, amorphic over isotic, frigid Humic Haploxerands
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Scoured
  • PSC - 2 to 76 cm.
  • Classificaton Date - 4/21/2010
  • Soil Taxonomic Edition - tenth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: tephra over colluvium and/or residuum weathered from basalt
  • Landscape: mountains
  • Landform: glaciated shield volcano
  • Geomorphic Component Mountains: mountainbase
  • Hill Slope Profile: backslope
  • Slope Position: lower third
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Bedrock: basalt at 42cm
  • Geology: Qty Or Qamh member.
  • Surface Fragments: 40.00 percent nonflat subangular 2- to 75-millimeter volcanic, unspecified, 10.00 percent nonflat subangular 250- to 600-millimeter volcanic, unspecified, 10.00 percent nonflat subrounded 600- to 2438-millimeter volcanic, unspecified, 10.00 percent nonflat subangular 75- to 250-millimeter volcanic, unspecified,
  • Benchmark Soil?: no

    • VEGETATION

  • Ecological Sites. (Click Ecological Site ID For Link to EDIT.)
    Ecological Site ID Ecological Site Name Correlation Data Classifier
    F022BI102CA Frigid Bouldery Glacially Scoured Ridges Or Headlands

    • SITE OBSERVATION

  • Observation Date: 10/4/2006 (actual site observation date)
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Air Temp - 6
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ABMA

    ACHNA

    ARNE

    CAREX

    ELELC2

    ELGL

    ERIOG

    LUPIN

    MOOD

    PICO

    PIMO3

    Abies magnifica

    Achnatherum

    Arctostaphylos nevadensis

    Carex

    Elymus elymoides ssp. californicus

    Elymus glaucus

    Eriogonum

    Lupinus

    Monardella odoratissima

    Pinus contorta

    Pinus monticola

    California red fir

    needlegrass

    pinemat manzanita

    sedge

    squirreltail

    blue wildrye

    buckwheat

    lupine

    mountain monardella

    lodgepole pine

    western white pine

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    indurated

    76 -

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    Site Soil Temperature
    Site Obs. Date Depth Sensor Kind Temperature
    cm C

    10/4/2006

    50

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    8
    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

    25

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    2080.2

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    60

    1245

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    Oi—0 to 2 centimeters (0.0 to 0.8 inches); slightly decomposed plant material; fragments; abrupt smooth boundary.; moist when described; observed in pit, small
    A—2 to 10 centimeters (0.8 to 3.9 inches); dark grayish brown (10YR 4/2), very dark gray (7.5YR 3/1), moist; very bouldery fine sandy loam; 5 percent clay; weak fine and medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; 8.0 very fine roots and 3.0 fine roots; 3.0 very fine and fine irregular and tubular pores; 7 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments and 10 percent by volume nonflat subangular 250-425-600 millimeter volcanic, unspecified fragments and 10 percent by volume nonflat subangular 75-163-250 millimeter volcanic, unspecified fragments and 10 percent by volume nonflat subangular 5-40-75 millimeter volcanic, unspecified fragments and 15 percent by volume nonflat subangular 600-?-? millimeter volcanic, unspecified fragments; moderately acid, pH 6.0, hellige-truog; abrupt smooth boundary.; moist when described; observed in pit, small
    AB—10 to 25 centimeters (3.9 to 9.8 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; very bouldery fine sandy loam; 5 percent clay; weak fine and medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; 3.0 very fine and fine roots and 0.8 medium and coarse roots; 3.0 fine and medium tubular and 3.0 fine and medium irregular pores; 10 percent by volume nonflat subangular 600-?-? millimeter volcanic, unspecified fragments and 10 percent by volume nonflat subangular 250-425-600 millimeter volcanic, unspecified fragments and 10 percent by volume nonflat subangular 75-163-250 millimeter volcanic, unspecified fragments and 10 percent by volume nonflat subangular 5-40-75 millimeter volcanic, unspecified fragments and 14 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments; strongly acid, pH 5.5, hellige-truog; clear smooth boundary.; dry when described; observed in pit, small
    2Bw—25 to 42 centimeters (9.8 to 16.5 inches); brown (10YR 4/3), dark brown (7.5YR 3/2), moist; very bouldery fine sandy loam; 7 percent clay; weak fine and medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; 3.0 very fine and fine roots and 0.8 medium roots; 3.0 fine and medium irregular and 3.0 fine and medium tubular pores; 10 percent by volume nonflat subangular 250-425-600 millimeter volcanic, unspecified fragments and 10 percent by volume nonflat subangular 75-163-250 millimeter volcanic, unspecified fragments and 10 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments and 13 percent by volume nonflat subangular 5-40-75 millimeter volcanic, unspecified fragments and 15 percent by volume nonflat subangular 600-?-? millimeter volcanic, unspecified fragments; strongly acid, pH 5.5, hellige-truog; abrupt wavy boundary.; dry when described; observed in pit, small
    2R1—42 to 76 centimeters (16.5 to 29.9 inches); boulders; massive; 0.8 very fine and fine roots; 20 percent by volume subangular indurated 600-?-? millimeter volcanic, unspecified fragments and 25 percent by volume subangular indurated 75-163-250 millimeter volcanic, unspecified fragments and 25 percent by volume subangular indurated 2-40-75 millimeter volcanic, unspecified fragments and 25 percent by volume subangular indurated 250-425-600 millimeter volcanic, unspecified fragments; clear wavy boundary.; dry when described; observed in pit, small
    2R2—76 to 100 centimeters (29.9 to 39.4 inches); bedrock; massive; 0.8 very fine and fine roots; fragments.; dry when described; observed in pit, small