IDENTIFIERS

  • Current Taxon Name (Soil Name): SUBACO TAXADJUNCT
  • OSD
  • Series Extent
  • User Site ID: 127-33-9A
  • User Pedon ID: 127-33-9A
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 89P0071
  • NCSS Pedon Lab Data NASIS Record ID - 61176
  • Print Date: 12/4/2024

    • 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: 39.3071013
  • Std. Longitude: -121.7988341
  • Datum: WGS84
  • Township: 17N
  • Range: 1E
  • Section: 24
  • PLSS Details: Approximately 1200 feet north and 200 feet west of the southeast corner
  • Location Description: About 1.1 miles northwest of Pennington.
  • Map Unit: 400—Subaco taxadjunct clay, 0 to 1 percent slopes
  • State: California
  • County: CA007—Butte
  • MLRA: 17—Sacramento and San Joaquin Valleys
  • Non-MLRA Soil Survey Area: CA612—Butte Area, California, Parts of Butte and Plumas Counties
  • 7.5 Minute USGS Quad: 39121-C7—Pennington, California

    • PEDON

  • Describers Name: Steve Borchard
  • Current Taxonomic Class: Fine, smectitic, thermic Aquic Durixererts
  • Current Taxon Kind: taxadjunct
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - SUBACO TAXADJUNCT
  • PSC - 25 to 89 cm.
  • Classificaton Date - 7/24/2012
  • Moisture Class - xeric
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Subaco
  • Classificaton Date - 10/27/1988
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: mixed alluvium over siltstone residuum
  • Landform: basin floor
  • Runoff: negligible
  • Drainage Class: somewhat poorly
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/27/1988 (actual site observation date)
  • Air Photo ID: 127-33
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    duripan

    —

    89 - 107

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

    calcic horizon

    duripan

    74—89

    89—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

    —

    —

    21

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 20 centimeters (0.0 to 7.9 inches); dark gray (10YR 4/1), black (10YR 2/1), moist; clay; 54 percent clay; strong coarse prismatic parts to strong fine and medium granular structure; very hard, firm, very sticky, very plastic; 3.0 very fine roots; 8.0 very fine tubular and 8.0 very fine interstitial pores; fragments; moderately alkaline, pH 8.0, pH meter; clear smooth boundary. Lab sample # 89P686
    Bss—20 to 41 centimeters (7.9 to 16.1 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; silty clay; 55 percent clay; strong coarse prismatic parts to strong medium angular blocky structure; extremely hard, very firm, very sticky, very plastic; 3.0 very fine roots; 8.0 very fine interstitial and 8.0 very fine tubular pores; 3 percent slickensides (pedogenic); fragments; strongly alkaline, pH 8.7, pH meter; clear smooth boundary. Lab sample # 89P687
    Bssk—41 to 74 centimeters (16.1 to 29.1 inches); dark gray (10YR 4/1), very dark gray (10YR 3/1), moist; silty clay; 55 percent clay; strong coarse prismatic parts to strong medium angular blocky structure; extremely hard, very firm, very sticky, very plastic; 0.8 very fine roots; 8.0 very fine interstitial and 8.0 very fine tubular pores; 3 percent slickensides (pedogenic); 3 percent fine irregular carbonate masses; fragments; strong effervescence; strongly alkaline, pH 9.0, pH meter; abrupt wavy boundary. Lab sample # 89P688
    Bk—74 to 89 centimeters (29.1 to 35.0 inches); light brownish gray (10YR 6/2), grayish brown (10YR 5/2), moist; clay; 50 percent clay; moderate medium subangular blocky structure; very hard, very firm, very sticky, very plastic; 0.8 very fine roots; 8.0 very fine interstitial and 8.0 very fine tubular pores; carbonate, finely disseminated throughout; fragments; strong effervescence; very strongly alkaline, pH 9.2, pH meter; abrupt wavy boundary. Lab sample # 89P689
    2Bkqm—89 to 107 centimeters (35.0 to 42.1 inches);, dark grayish brown (2.5Y 4/2), moist; silty clay loam; 32 percent clay; fragments; strong effervescence; strongly alkaline, pH 8.8, pH meter; abrupt smooth boundary. Lab sample # 89P691
    2Cd—107 centimeters (42.1 inches); sandy loam; 7 percent clay; fragments; moderately alkaline, pH 8.3, pH meter. Lab sample # 89P692S