IDENTIFIERS

  • Current Taxon Name (Soil Name): Red Bluff
  • OSD
  • Series Extent
  • User Site ID: S1945CA103006
  • User Pedon ID: S1945CA103006
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A2932
  • NCSS Pedon Lab Data NASIS Record ID - 38061
  • Print Date: 5/19/2024

    • 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: 40.1505547
  • Std. Longitude: -122.2638855
  • Datum: WGS84
  • Township: 27N
  • Range: 4W
  • Section: 36
  • PLSS Details: SW1/4 NE1/4, 0.05 mile east of the center
  • State: California
  • County: CA103—Tehama
  • MLRA: 17—Sacramento and San Joaquin Valleys
  • Non-MLRA Soil Survey Area: CA645—Tehama County, California

    • PEDON

  • Describers Name: R. C. Roberts and R. A. Gardner
  • Current Taxonomic Class: Fine, kaolinitic, thermic Ultic Palexeralfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 6
  • Correlated Information:
  • Soil Name - Red Bluff
  • PSC - 49 to 99 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - RED BLUFF
  • Classificaton Date - 4/2/1945
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: valley
  • Landform: terrace
  • Runoff: low
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/2/1945 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    —

    —

    —

    104

    —

    610

    —

    —

    16.7

    27.8

    7.2

    —

    —

    —

    —

    —

    —

    —

    —
    AP—0 to 15 centimeters (0.0 to 5.9 inches); reddish brown (5YR 4/4), dark reddish brown (2.5YR 3/4), moist; gravelly loam; strong granular structure; slightly hard, friable, slightly plastic; 21.0 fine roots; fragments; very strongly acid, pH 5.0, unspecified; abrupt smooth boundary. Lab sample # 40A23129; moist when described;
    A11—15 to 26 centimeters (5.9 to 10.2 inches); reddish brown (5YR 4/4), reddish brown (5YR 4/4), moist; gravelly loam; slightly hard, friable, slightly plastic; 21.0 fine roots; fragments; very strongly acid, pH 4.9, unspecified; diffuse wavy boundary. Lab sample # 40A23130; moist when described;
    A12—26 to 49 centimeters (10.2 to 19.3 inches); reddish brown (5YR 4/4), dark reddish brown (2.5YR 3/4), moist; loam; strong granular structure; slightly hard, friable, slightly plastic; 21.0 fine roots; fragments; very strongly acid, pH 5.0, unspecified; abrupt irregular boundary. Lab sample # 40A23131; moist when described;
    B21TSI—49 to 69 centimeters (19.3 to 27.2 inches); red (2.5YR 4/6), weak red (10R 4/4), moist; clay loam; strong subangular blocky structure; hard when dry, firm, moderately plastic; 0.5 fine roots; fragments; very strongly acid, pH 5.0, unspecified; gradual boundary. Lab sample # 40A23132; moist when described;. apparently weakly cemented with iron oxide; coatings of manganese oxide, particularly in lower part of layer, more in evidence than in any other layer.
    B22TSI—69 to 94 centimeters (27.2 to 37.0 inches); red (2.5YR 4/6), red (2.5YR 4/6), moist; clay loam; hard when dry, firm; 0.5 fine roots; fragments; very strongly acid, pH 5.0, unspecified; diffuse boundary. Lab sample # 40A23133; moist when described;. apparently weakly cemented with iron oxide, as layer above, but contains somewhat less coatings of manganese oxide.
    B23TSI—94 to 114 centimeters (37.0 to 44.9 inches); red (2.5YR 4/6), weak red (10R 4/4), moist; gravelly clay loam; strong subangular blocky structure; hard when dry, firm, weakly coherent, moderately plastic; 0.5 fine roots; fragments; strongly acid, pH 5.2, unspecified; diffuse boundary. Lab sample # 40A23134; moist when described;. apparently weakly cemented but appears to be slightly less cemented than horizon above; contains manganese oxide.
    C1—140 to 163 centimeters (55.1 to 64.2 inches); red (2.5YR 4/6), red (2.5YR 4/6), moist; gravelly clay loam; weak subangular blocky structure; hard when dry, firm, weakly coherent, moderately plastic; 0.5 fine roots; fragments. Lab sample # 40A23135; moist when described;. compact; consistence similar to layer above; manganese oxide present; no distinct observable difference between this layer and underlying layer.
    C2—163 to 183 centimeters (64.2 to 72.0 inches); red (2.5YR 4/6), red (2.5YR 4/6), moist; gravelly clay loam; weak subangular blocky structure; hard when dry, firm, weakly coherent, moderately plastic; 0.5 roots; fragments; strongly acid, pH 5.4, unspecified. Lab sample # 40A23136; moist when described;