IDENTIFIERS

  • Current Taxon Name (Soil Name): unnamed
  • OSD
  • Series Extent
  • User Site ID: S1976CA035101
  • User Pedon ID: S1976CA035101
  • Vegetation Plot ID: S1976CA035101
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3384
  • NCSS Pedon Lab Data NASIS Record ID - 38499
  • Print Date: 4/27/2024

    • LOCATION

  • Township: 35N
  • Range: 7E
  • Section: 30
  • PLSS Details: SW 1/4, SE 1/4
  • State: California
  • County: CA035—Lassen
  • Non-MLRA Soil Survey Area: CA708—Lassen National Forest, California, Parts of Lassen, Plumas, Butte, Shasta, and Siskiyou Counties
  • 7.5 Minute USGS Quad: 40121-H2—Little Valley, California

    • PEDON

  • Describers Name: YKS & PLN
  • Current Taxonomic Class: Loamy-skeletal over clayey, mixed, mesic Pachic Argixerolls
  • Pedon Record Orgin: NASIS
  • Pedon #: 101
  • Sampled As Information:
  • Soil Name - unnamed
  • Taxonomic Class - Loamy-skeletal over clayey, mixed, mesic Pachic Argixerolls
  • Classificaton Date - 7/13/1976
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: basalt over pumice
  • Landform: lava flow
  • Slope Complexity: simple
  • Drainage Class: well
  • Bedrock: pumice at 2cm
  • Surface Fragments: 2.00 percent 20- to 76-millimeter
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/13/1976 (actual site observation date)
  • Air Photo ID: 8-57
  • 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

    PIPA2

    Pinus palustris

    longleaf pine

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    —

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

    —

    mollic epipedon

    argillic horizon

    —

    0—66

    32—127

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    —-

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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

    15

    —

    —

    1542

    —

    270

    457

    —

    —

    —

    —

    —

    —

    —

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    O—0 to 4 centimeters (0.0 to 1.6 inches); slightly decomposed plant material; fragments. Lab sample # 40A26279
    A1—4 to 13 centimeters (1.6 to 5.1 inches); brown (10YR 4/3), dark brown (7.5YR 3/2), moist; gravelly loam; moderate fine granular, and moderate medium subangular blocky structure; slightly hard, very friable, nonsticky, slightly plastic; moderate permeability; 21.0 very fine roots; 3.0 very fine and fine tubular and 3.0 very fine and fine interstitial pores; 40 percent by volume 2-?-76 millimeter basalt fragments; slightly alkaline, pH 7.8; abrupt wavy boundary. Lab sample # 40A26280; dry when described;
    Bt1—13 to 36 centimeters (5.1 to 14.2 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; gravelly loam; moderate fine subangular blocky structure; hard, very friable, moderately sticky, moderately plastic; moderate permeability; 21.0 medium roots and 3.0 fine roots; 3.0 very fine tubular and 21.0 very fine interstitial and 3.0 medium and coarse tubular and 21.0 fine tubular pores; 10 percent thin clay films on surfaces along pores; 10 percent by volume 2-?-76 millimeter basalt fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # 40A26281; dry when described;
    Bt2—36 to 70 centimeters (14.2 to 27.6 inches); reddish brown (5YR 5/3), dark reddish brown (5YR 3/2), moist; gravelly clay loam; moderate fine and medium subangular blocky structure; hard, very friable, very sticky, moderately plastic; moderately slow permeability; 21.0 medium roots and 0.5 fine roots; 21.0 very fine and fine tubular and 3.0 medium tubular pores; 75 percent distinct clay films on surfaces along pores and 75 percent distinct clay films on all faces of peds; 2 percent by volume 2-?-76 millimeter basalt fragments and 30 percent by volume 76-?-250 millimeter basalt fragments; slightly acid, pH 6.5; abrupt wavy boundary. Lab sample # 40A26282; dry when described;
    2Bt21—70 to 98 centimeters (27.6 to 38.6 inches); reddish brown (5YR 4/3), dark reddish brown (5YR 3/4), moist; gravelly clay; strong fine and medium subangular blocky structure; very hard, friable, very sticky, very plastic; slow permeability; 3.0 fine and medium roots; 21.0 fine and medium tubular pores; 30 percent thick clay films on all faces of peds and 30 percent thick clay films on surfaces along pores; 5 percent by volume 2-?-76 millimeter pumice fragments; slightly acid, pH 6.5; gradual smooth boundary. Lab sample # 40A26283; dry when described;
    2Bt23—98 to 131 centimeters (38.6 to 51.6 inches); reddish brown (5YR 5/4), reddish brown (5YR 4/4), moist; gravelly clay; strong medium angular blocky structure; extremely hard, extremely firm, very sticky, very plastic; slow permeability; 0.5 fine and medium roots; 21.0 very fine and fine tubular pores; 75 percent thick clay films on all faces of peds and 75 percent thick clay films on surfaces along pores; 5 percent by volume 2-?-76 millimeter pumice fragments; slightly acid, pH 6.5; abrupt smooth boundary. Lab sample # 40A26284; moist when described;
    2B3—131 to 151 centimeters (51.6 to 59.4 inches); brown (7.5YR 5/4), yellowish red (5YR 4/6), moist; gravelly clay loam; massive; very hard, friable, very sticky, very plastic; slow permeability; 21.0 very fine and fine interstitial and 21.0 very fine and fine tubular and 0.5 medium tubular pores; 30 percent distinct clay films on all faces of peds and 30 percent distinct clay films on surfaces along pores; 10 percent by volume 2-?-76 millimeter pumice fragments; slightly acid, pH 6.5; gradual smooth boundary. Lab sample # 40A26285; moist when described;