IDENTIFIERS

  • Current Taxon Name (Soil Name): Humboldt
  • OSD
  • Series Extent
  • User Site ID: S2000CA035002
  • User Pedon ID: S2000CA035002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 01P0334
  • NCSS Pedon Lab Data NASIS Record ID - 13116
  • Print Date: 5/31/2024

    • 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: 40.3279343
  • Std. Longitude: -120.3154755
  • Datum: WGS84
  • Location Description: Jay Dow.
  • Map Unit: 249—Humboldt silty clay loam, saline, 0 to 2 percent slopes, occasionally flooded
  • State: California
  • County: CA035—Lassen
  • MLRA: 23—Malheur High Plateau
  • Non-MLRA Soil Survey Area: CA608—Susanville Area, Parts of Lassen and Plumas Counties, California
  • 7.5 Minute USGS Quad: 40120-C3—Wendel Hot Springs, California

    • PEDON

  • Describers Name: STSL
  • Current Taxonomic Class: Fine, smectitic, mesic Cumulic Endoaquolls
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Sampled As Information:
  • Soil Name - Humboldt
  • Taxonomic Class - Fine, smectitic, mesic Cumulic Endoaquolls
  • PSC - 25 to 100 cm.
  • Classificaton Date - 11/1/2000
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: valley
  • Landform: flood plain
  • Runoff: negligible
  • Drainage Class: somewhat poorly
  • Flooding: occasional flooding for long periods begining in feb
  • Wet Soil Moisture Duration: 150
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/1/2000 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    secondary carbonates

    0—81

    64—107

    —-

    —-
    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

    —

    —

    1218

    —

    229

    —

    —

    11

    —

    —

    11

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 13 centimeters (0.0 to 5.1 inches); very dark gray (N 3/0), very dark gray (10YR 3/1), dry; silty clay loam; medium and coarse prismatic parts to strong medium and coarse angular blocky structure; very hard, friable, very sticky, very plastic; 21.0 very fine and fine roots and 21.0 medium and coarse roots; 21.0 very fine interstitial and tubular pores; fragments; noneffervescent; moderately alkaline, pH 8.2, hellige-truog; clear smooth boundary. Lab sample # 01P02061
    A1—13 to 30 centimeters (5.1 to 11.8 inches); very dark gray (N 3/0), very dark gray (10YR 3/1), dry; silty clay; weak coarse prismatic parts to strong medium and coarse angular blocky structure; very hard, friable, very sticky, very plastic; 21.0 very fine and fine roots and 21.0 medium and coarse roots; 21.0 very fine tubular and 3.0 fine pores; fragments; noneffervescent; moderately alkaline, pH 8.2, hellige-truog; clear smooth boundary. Lab sample # 01P02062
    A2—30 to 64 centimeters (11.8 to 25.2 inches); very dark gray (N 3/0), very dark gray (10YR 3/1), dry; silty clay; weak coarse prismatic parts to strong coarse angular blocky structure; very hard, friable, very sticky, very plastic; 21.0 very fine roots and 0.5 medium roots and 21.0 fine roots; 21.0 very fine and fine tubular and 3.0 medium and 0.5 coarse pores; fragments; noneffervescent; strongly alkaline, pH 8.7, hellige-truog; clear wavy boundary. Lab sample # 01P02063
    Bk1—64 to 81 centimeters (25.2 to 31.9 inches); very dark gray (2.5Y 3/1), dark gray (10YR 4/1), dry; silty clay loam; weak medium prismatic parts to strong medium and coarse angular blocky structure; very hard, friable, very sticky, very plastic; 0.5 very fine and fine roots; 21.0 very fine and fine tubular and 3.0 medium pores; fragments; slight effervescence; moderately alkaline, pH 8.2, hellige-truog; clear wavy boundary. Lab sample # 01P02064
    Bk2—81 to 107 centimeters (31.9 to 42.1 inches); very dark gray (5Y 3/1), light brownish gray (2.5Y 6/2) and olive gray (5Y 4/2), dry; sandy clay loam; moderate coarse subangular blocky structure; very hard, friable, moderately sticky, moderately plastic; 0.5 very fine and fine roots; 3.0 very fine tubular pores; 1 percent fine noncoherent cemented light brownish gray (10YR 6/2) lime masses; fragments; very slight effervescence; moderately alkaline, pH 8.2, hellige-truog; clear smooth boundary. Lab sample # 01P02065
    Agb—107 to 137 centimeters (42.1 to 53.9 inches); 10 percent very dark gray (5Y 3/1), dark grayish brown (2.5Y 4/2) and very dark gray (5Y 3/1), dry; clay; 3 percent very dark grayish brown (2.5Y 3/2) fine and medium distinct and 3 percent dark greenish gray (5BG 4/1) medium and coarse prominent mottles; weak medium prismatic parts to strong medium angular blocky structure; hard when dry, friable, very sticky, very plastic; 0.5 very fine roots; 3.0 very fine tubular pores; 30 percent pressure faces; fragments; noneffervescent; strongly alkaline, pH 8.7, hellige-truog; clear smooth boundary. Lab sample # 01P02066
    Cg—137 to 165 centimeters (53.9 to 65.0 inches); olive gray (5Y 4/2), light brownish gray (2.5Y 6/2), dry; clay loam; 3 percent dark greenish gray (5BG 4/1) medium and coarse prominent and 3 percent very dark grayish brown (2.5Y 3/2) fine and medium distinct mottles; massive; hard when dry, friable, moderately sticky, moderately plastic; 0.5 very fine tubular pores; fragments; noneffervescent; strongly alkaline, pH 8.7, hellige-truog. Lab sample # 01P02067. no roots observed.