IDENTIFIERS

  • Current Taxon Name (Soil Name): Hotaw
  • OSD
  • Series Extent
  • User Site ID: S1975-CA-55-028x
  • User Pedon ID: 75-CA-55-028x
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - UCDAVIS
  • Lab Pedon # - UCD7555028
  • NCSS Pedon Lab Data NASIS Record ID - 42322
  • Print Date: 5/20/2024

    • 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: 37.9977782
  • Std. Longitude: -120.3055286
  • Datum: WGS84
  • Township: 2N
  • Range: 15E
  • Section: 27
  • PLSS Details: SE/4, NE/4
  • Map Unit: 6078—Sierra-Flanly complex, 15 to 65 percent slopes
  • State: California
  • County: CA109—Tuolumne
  • MLRA: 22A—Sierra Nevada and Tehachapi Mountains
  • Non-MLRA Soil Survey Area: CA630—Central Sierra Foothills Area, California, Parts of Calaveras and Tuolumne Counties
  • 7.5 Minute USGS Quad: 38120-A3—Columbia SE, California

    • PEDON

  • Describers Name: BFS
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Ultic Haploxeralfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Hotaw
  • PSC - 10 to 43 cm.
  • Classificaton Date - 12/1/2016
  • Classifier - Andrew Brown
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - RACKERBY
  • Taxonomic Class - Fine-loamy, mixed, thermic Ultic Haploxeralfs
  • Classificaton Date - 3/2/2009
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from gabbro
  • Landscape: mountains
  • Landform: mountain slope
  • Slope Complexity: complex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Bedrock: gabbro
  • Geology: Gabbro. Geologic Formation: Me formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

  • Ecological Sites. (Click Ecological Site ID For Link to EDIT.)
    Ecological Site ID Ecological Site Name Correlation Data Classifier
    R018XI105CA Mesic Steep Convex Slopes bordering thermic Dec 1 2016 Andrew Paolucci

    • SITE OBSERVATION

  • Observation Date: 3/2/2009 (entry creation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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

    bedrock, paralithic

    —

    61 -

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

    ochric epipedon

    0—18

    —18—
    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

    20

    —

    —

    823

    —

    135

    889

    —

    —

    14.4

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 10 centimeters (0.0 to 3.9 inches); grayish brown (10YR 5/2), dark brown (7.5YR 3/3), moist; sandy loam; 65 percent sand; 20 percent silt; 16 percent clay; weak medium subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 3.0 medium roots throughout and 3.0 roots throughout; 21.0 medium tubular pores; fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.1; abrupt wavy boundary. Lab sample # UCD04089
    Bt1—10 to 25 centimeters (3.9 to 9.8 inches); reddish brown (5YR 5/4), 50 percent dark reddish brown (5YR 3/4) and 50 percent 5YR 3/6 (5YR 3/6), moist; clay loam; 32 percent sand; 40 percent silt; 28 percent clay; very hard, firm, moderately sticky, very plastic; 21.0 very fine roots throughout and 21.0 medium roots throughout and 21.0 fine roots throughout and 21.0 roots throughout; 3.0 medium tubular and 3.0 fine tubular pores; 75 percent clay films on top faces of peds; fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.5; gradual wavy boundary. Lab sample # UCD04090
    Bt2—25 to 43 centimeters (9.8 to 16.9 inches); light brown (7.5YR 6/4), brown (7.5YR 4/4), moist; clay loam; 31 percent sand; 38 percent silt; 31 percent clay; very hard, firm, moderately sticky, moderately plastic; 0.5 medium roots throughout; 0.1 fine tubular pores; 75 percent clay films on top faces of peds; fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.4; clear wavy boundary. Lab sample # UCD04091
    CB—43 to 61 centimeters (16.9 to 24.0 inches); light yellowish brown (10YR 6/4), brown (10YR 5/3), moist; loam; 33 percent sand; 42 percent silt; 25 percent clay; massive; hard, firm, moderately sticky, moderately plastic; fragments; noneffervescent, by hcl, 1n; neutral, pH 6.7; clear smooth boundary. Lab sample # UCD04092
    Cr—61 to 86 centimeters (24.0 to 33.9 inches); fragments. Lab sample # UCD04093