IDENTIFIERS

  • Current Taxon Name (Soil Name): Cohasset
  • OSD
  • Series Extent
  • User Site ID: S1990CA109108
  • User Pedon ID: 90CA109108
  • Vegetation Plot ID: S1990CA109108
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 91P0726
  • NCSS Pedon Lab Data NASIS Record ID - 63765
  • Print Date: 11/21/2024

    • 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: 37.9000015
  • Std. Longitude: -120.0269470
  • Datum: WGS84
  • Township: 1N
  • Range: 18E
  • Section: 30
  • State: California
  • County: CA109—Tuolumne
  • MLRA: 22A—Sierra Nevada and Tehachapi Mountains

    • PEDON

  • Current Taxonomic Class: Fine, mixed, semiactive, mesic Typic Palexerults
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 108
  • Correlated Information:
  • Soil Name - Cohasset
  • PSC - 54 to 104 cm.
  • Classificaton Date - 12/23/2015
  • Classifier - Andrew Paolucci
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Cohasset
  • Taxonomic Class - Fine-loamy, mixed, mesic Ultic Haploxeralf
  • Taxon Kind - series
  • Classificaton Date - 8/1/1990
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Anthropogenic Feature: leveled land
  • Slope Shape Down: convex
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1990 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    PIPO

    QUKE

    Pinus ponderosa

    Quercus kelloggii

    ponderosa pine

    California black oak

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

    ochric epipedon

    cambic horizon

    argillic horizon

    0—18

    26—54

    54—160

    —18—

    —28—

    —106—
    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

    30

    —

    —

    1219

    —

    135

    119

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    Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments. slightly decomposed pine needles and oak leaves
    Oe—3 to 8 centimeters (1.2 to 3.1 inches); moderately decomposed plant material; 4 percent by volume 2-39-75 millimeter unspecified fragments. moderately decomposed pine needles and oak leaves
    A—8 to 26 centimeters (3.1 to 10.2 inches); brown (10YR 4/3), dark brown (7.5YR 3/2), moist; loam; 43 percent sand; 33 percent silt; 24 percent clay; moderate fine and medium granular structure; soft, very friable, nonsticky, nonplastic; 5.5 very fine and fine roots and 5.5 medium and coarse roots; 5.5 very fine and fine interstitial and 5.5 medium and coarse interstitial pores; 4 percent by volume 2-39-75 millimeter unspecified fragments; moderately acid, pH 6.0, hellige-truog; gradual smooth boundary. Lab sample # 91P04107. many very fine and fine roots; many medium and coarse roots
    AB—26 to 54 centimeters (10.2 to 21.3 inches); brown (7.5YR 5/4), dark reddish brown (5YR 3/4), moist; clay loam; 25 percent sand; 36 percent silt; 39 percent clay; moderate fine and medium subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 2.5 very fine roots and 5.5 fine and medium roots; 2.5 very fine and fine interstitial and 2.5 fine and medium tubular pores; 15 percent faint clay films on faces of peds; fragments; moderately acid, pH 6.0, hellige-truog; clear wavy boundary. Lab sample # 91P04108. few clay films surface features on faces of peds; common very fine roots; many fine and medium roots
    Bt1—54 to 105 centimeters (21.3 to 41.3 inches); strong brown (7.5YR 4/6), dark reddish brown (5YR 3/4), moist; clay; 15 percent sand; 31 percent silt; 54 percent clay; strong fine and medium subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 0.5 fine and medium roots and 0.5 coarse roots; 0.5 fine and medium tubular and 0.5 coarse tubular pores; 55 percent distinct clay films on faces of peds and in pores; 5 percent by volume 75-162-250 millimeter unspecified fragments; moderately acid, pH 6.0, hellige-truog; diffuse smooth boundary. Lab sample # 91P04109. many clay films surface features on faces of peds and in pores; few fine and medium roots; few coarse roots
    BCt—105 to 160 centimeters (41.3 to 63.0 inches); yellowish brown (10YR 5/4), brown (7.5YR 4/4), moist; clay; 18 percent sand; 33 percent silt; 50 percent clay; moderate medium and coarse angular blocky structure; slightly hard, friable, moderately sticky, slightly plastic; 0.5 coarse roots; 0.5 medium and coarse tubular pores; 37 percent faint clay films on faces of peds and in pores; 1 percent by volume 250-425-600 millimeter unspecified fragments and 5 percent by volume 75-162-250 millimeter unspecified fragments; moderately acid, pH 5.6, hellige-truog. Lab sample # 91P04110. common clay films surface features on faces of peds and in pores; few coarse roots