IDENTIFIERS

  • Current Taxon Name (Soil Name): Emeraldlake
  • OSD
  • Series Extent
  • User Site ID: 789208
  • User Pedon ID: 789208
  • Vegetation Plot ID: 789208
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 08N0485
  • NCSS Pedon Lab Data NASIS Record ID - 19743
  • 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: 40.4736944
  • Std. Longitude: -121.5108056
  • Datum: WGS84
  • Map Unit: 114—Emeraldlake-Terracelake-Readingpeak-Rock Outcrop-Rubble land complex, 20 to 95 percent slopes
  • State: California
  • County: CA089—Shasta
  • MLRA: 22B—Southern Cascade Mountains
  • Non-MLRA Soil Survey Area: CA789—Lassen Volcanic National Park, California
  • 7.5 Minute USGS Quad: 40121-D5—Lassen Peak, California

    • PEDON

  • Describers Name: GCL, AEC
  • Current Taxonomic Class: Ashy-skeletal, amorphic, nonacid Vitrandic Cryorthents
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Emeraldlake
  • PSC - 25 to 100 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: colluvium derived from dacite
  • Landscape: mountains
  • Landform: cirque wall
  • Geomorphic Component Mountains: mountainflank
  • Hill Slope Profile: backslope
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Geology: Qdpl member.
  • Surface Fragments: 45.00 percent nonflat subangular 2- to 75-millimeter 20.00 percent nonflat subangular 250- to 600-millimeter 15.00 percent nonflat subangular 600 20.00 percent nonflat subangular 75- to 250-millimeter
  • Benchmark Soil?: no

    • VEGETATION

  • Ecological Sites. (Click Ecological Site ID For Link to EDIT.)
    Ecological Site ID Ecological Site Name Correlation Data Classifier
    R022BI207CA Alpine Slopes

    • SITE OBSERVATION

  • Observation Date: 9/19/2006 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rock
  • 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

    ARNE

    MOOD

    NAPU4

    PIAL

    TSME

    Arctostaphylos nevadensis

    Monardella odoratissima

    Nassella pulchra

    Pinus albicaulis

    Tsuga mertensiana

    pinemat manzanita

    mountain monardella

    purple needlegrass

    whitebark pine

    mountain hemlock

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

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

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

    9/19/2006

    50

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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

    60

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    2590.5

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    214

    2972

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    Oi—0 to 3 centimeters (0.0 to 1.2 inches); very dark grayish brown (2.5Y 3/2), grayish brown (2.5Y 5/2), dry; extremely gravelly fine sandy loam, peat; 3 percent clay; mottles; single grain; loose, loose, nonsticky, nonplastic; ; ; ; 30 percent by volume nonflat subangular 5-40-75 millimeter volcanic, unspecified fragments and 30 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments; strongly acid, pH 5.5, hellige-truog; abrupt smooth boundary.; dry when described; observed in pit, small
    A1—3 to 12 centimeters (1.2 to 4.7 inches); very dark grayish brown (2.5Y 3/2), grayish brown (2.5Y 5/2), dry; extremely gravelly sandy loam; 6 percent clay; mottles; single grain; loose, loose, nonsticky, nonplastic; 8.0 very fine and fine roots and 0.8 medium roots; 8.0 very fine interstitial and 0.8 fine interstitial pores; ; ; ; 7 percent by volume nonflat subangular 75-163-250 millimeter volcanic, unspecified fragments and 9 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments and 44 percent by volume nonflat subangular 5-12-20 millimeter volcanic, unspecified fragments; moderately acid, pH 6.0, hellige-truog; abrupt smooth boundary.; dry when described; observed in pit, small
    A2—12 to 35 centimeters (4.7 to 13.8 inches); dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; extremely gravelly sandy loam; 7 percent clay; mottles; single grain; loose, loose, nonsticky, nonplastic; 8.0 very fine and fine roots and 3.0 medium roots; 8.0 very fine interstitial and 3.0 medium interstitial and 3.0 fine tubular pores; ; ; ; 5 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments and 15 percent by volume nonflat subangular 75-163-250 millimeter volcanic, unspecified fragments and 45 percent by volume nonflat subangular 5-40-75 millimeter volcanic, unspecified fragments; slightly acid, pH 6.5, hellige-truog; abrupt wavy boundary.; dry when described; observed in pit, small
    Bw1—35 to 64 centimeters (13.8 to 25.2 inches); brown (10YR 4/3), light yellowish brown (10YR 6/4), dry; extremely gravelly sandy loam; 8 percent clay; mottles; weak fine and medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; 3.0 very fine to medium roots and 0.8 coarse roots; 8.0 very fine and fine interstitial and 0.8 medium interstitial and 0.8 fine tubular pores; ; ; ; 10 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments and 10 percent by volume nonflat subangular 75-163-250 millimeter volcanic, unspecified fragments and 55 percent by volume nonflat subangular 5-40-75 millimeter volcanic, unspecified fragments; neutral, pH 6.7, hellige-truog; abrupt smooth boundary.; dry when described; observed in pit, small
    Bw2—64 to 90 centimeters (25.2 to 35.4 inches); dark yellowish brown (10YR 4/4), light yellowish brown (10YR 6/4), dry; extremely gravelly sandy loam; 8 percent clay; mottles; weak medium subangular blocky parts to single grain; soft, very friable, nonsticky, nonplastic; 0.8 very fine roots and 3.0 fine and medium roots and 0.8 coarse roots; 3.0 very fine to medium interstitial 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 12 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments and 45 percent by volume nonflat subangular 5-12-20 millimeter volcanic, unspecified fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary.; dry when described; observed in pit, small
    Bw3—90 to 129 centimeters (35.4 to 50.8 inches); dark yellowish brown (10YR 4/4), very pale brown (10YR 7/4), dry; sandy loam; 10 percent clay; mottles; single grain; loose, loose, nonsticky, nonplastic; 0.8 very fine to coarse roots; 3.0 fine and medium interstitial pores; ; ; ; 3 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments and 5 percent by volume nonflat subangular 75-163-250 millimeter volcanic, unspecified fragments and 23 percent by volume nonflat subangular 5-40-75 millimeter volcanic, unspecified fragments and 25 percent by volume nonflat subangular 250-425-600 millimeter volcanic, unspecified fragments and 40 percent by volume nonflat subangular 600-?-? millimeter volcanic, unspecified fragments; neutral, pH 6.8, hellige-truog; abrupt smooth boundary.; dry when described; observed in pit, small
    Bw4—129 to 152 centimeters (50.8 to 59.8 inches); dark yellowish brown (10YR 4/4), very pale brown (10YR 7/4), dry; sandy loam; 13 percent clay; mottles; single grain; loose, loose, nonsticky, nonplastic; 0.8 medium and coarse roots; 3.0 fine and medium interstitial pores; ; ; ; 3 percent by volume nonflat subangular 2-3-5 millimeter volcanic, unspecified fragments and 23 percent by volume nonflat subangular 5-75-163 millimeter volcanic, unspecified fragments and 30 percent by volume nonflat subangular 250-425-600 millimeter volcanic, unspecified fragments and 40 percent by volume nonflat subangular 600-?-? millimeter volcanic, unspecified fragments; neutral, pH 6.8, hellige-truog.; dry when described; observed in pit, small