IDENTIFIERS

  • Current Taxon Name (Soil Name): Timbuctoo
  • OSD
  • Series Extent
  • User Site ID: S1984CA115005
  • User Pedon ID: 84CA115005
  • Vegetation Plot ID: S1984CA115005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 84P0881
  • NCSS Pedon Lab Data NASIS Record ID - 55669
  • 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: 39.2458344
  • Std. Longitude: -121.3249969
  • Datum: WGS84
  • Township: 16N
  • Range: 6E
  • Section: 17
  • PLSS Details: 671 meters E and 762 meters N of the SW corner
  • Location Description: Smartsville Quadrangle.
  • State: California
  • County: CA115—Yuba
  • MLRA: 18—Sierra Nevada Foothills

    • PEDON

  • Describers Name: D. Lytle and P. Vonich
  • Current Taxonomic Class: Fine, parasesquic, thermic Typic Rhodoxeralfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - Timbuctoo
  • PSC - 10 to 60 cm.
  • Classificaton Date - 2/1/2010
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Los Posas V
  • Classificaton Date - 9/1/1984
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: mountains or deeply dissected plateaus
  • Landform: hillside or mountainside
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: summit
  • Slope Position: middle third
  • Slope Shape Down: concave
  • Runoff: low
  • Flooding: frequent flooding
  • Bedrock: with <10
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1984 (actual site observation 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
  • Site Erosion Accelerated: water erosion
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    AVFA

    BRMO2

    QUDO

    Avena fatua

    Bromus mollis

    Quercus douglasii

    wild oat

    —

    blue oak

    —

    —

    —

    —

    —

    —

    —

    —

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

    ochric epipedon

    argillic horizon

    paralithic contact

    lithic contact

    0—10

    10—66

    96—114

    114—0

    —-

    —-

    —-

    —-
    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

    22

    —

    —

    149

    —

    66

    —

    —

    16

    23

    8

    17

    —

    —

    —

    —

    —

    —

    —
    1A—0 to 10 centimeters (0.0 to 3.9 inches); yellowish red (5YR 4/6) exterior, dark reddish brown (5YR 3/4) exterior, moist; gravelly loam; moderate fine subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 2.5 very fine roots throughout and 2.5 fine roots throughout; 2.5 very fine interstitial and tubular pores; 1 percent by volume 250-425-600 millimeter metamorphic, unspecified fragments and 5 percent by volume 75-162-250 millimeter metamorphic, unspecified fragments and 20 percent by volume 2-39-75 millimeter metamorphic, unspecified fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary. Lab sample # 84P04939. common very fine roots throughout; common fine roots throughout
    1Bt1—10 to 23 centimeters (3.9 to 9.1 inches); red (2.5YR 4/6) exterior, dark red (2.5YR 3/6) exterior, moist; gravelly clay loam; strong medium subangular blocky structure; hard, very friable, slightly sticky, moderately plastic; 0.5 very fine roots throughout and 0.5 fine and medium roots throughout; 2.5 very fine interstitial and tubular pores; 37 percent distinct clay films on faces of peds and 37 percent distinct clay films in root channels and/or pores; 5 percent by volume 75-162-250 millimeter metamorphic, unspecified fragments and 20 percent by volume 2-39-75 millimeter metamorphic, unspecified fragments; neutral, pH 7.0, hellige-truog; clear wavy boundary. Lab sample # 84P04940. common clay films surface features on faces of peds; common clay films surface features in root channels and/or pores; few very fine roots throughout; few fine and medium roots throughout; patchy - phpvsfiid 217769; patchy - phpvsfiid 217770; patchy - phpvsfiid 217769; patchy - phpvsfiid 217770
    1Bt2—23 to 46 centimeters (9.1 to 18.1 inches); dark red (2.5YR 3/6) exterior, dark red (2.5YR 3/6) exterior, moist; gravelly clay loam; strong medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 0.5 very fine roots throughout and 0.5 fine roots throughout; 2.5 very fine interstitial and 2.5 fine tubular pores; 37 percent prominent clay films on faces of peds and 37 percent prominent clay films in root channels and/or pores; 5 percent by volume 75-162-250 millimeter metamorphic, unspecified fragments and 20 percent by volume 2-39-75 millimeter metamorphic, unspecified fragments; neutral, pH 7.0, hellige-truog; clear wavy boundary. Lab sample # 84P04941. common clay films surface features on faces of peds; common clay films surface features in root channels and/or pores; few very fine roots throughout; few fine roots throughout; discontinuous - phpvsfiid 217771; discontinuous - phpvsfiid 217772; discontinuous - phpvsfiid 217771; discontinuous - phpvsfiid 217772
    1Bt3—46 to 66 centimeters (18.1 to 26.0 inches); dark red (2.5YR 3/6) exterior, dark red (2.5YR 3/6) exterior, moist; gravelly clay loam; strong medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 0.5 very fine roots and 2.5 coarse roots; 2.5 fine tubular pores; 55 percent prominent clay films on faces of peds and 55 percent prominent clay films in root channels and/or pores; 2 percent by volume 75-162-250 millimeter metamorphic, unspecified fragments and 20 percent by volume 2-39-75 millimeter metamorphic, unspecified fragments; neutral, pH 7.0, hellige-truog; clear wavy boundary. Lab sample # 84P04942. many clay films surface features on faces of peds; many clay films surface features in root channels and/or pores; few very fine roots; common coarse roots; discontinuous - phpvsfiid 217773; discontinuous - phpvsfiid 217774; discontinuous - phpvsfiid 217773; discontinuous - phpvsfiid 217774
    1BC—66 to 96 centimeters (26.0 to 37.8 inches); dark red (2.5YR 3/6) exterior, 5YR 3/6 (5YR 3/6) exterior, moist; gravelly sandy clay loam; moderate medium subangular blocky structure; 0.5 very fine roots throughout and 2.5 very coarse roots throughout; 0.5 fine tubular pores; 55 percent prominent clay films on faces of peds; 2 percent by volume 75-162-250 millimeter metamorphic, unspecified fragments and 20 percent by volume 2-39-75 millimeter metamorphic, unspecified fragments; neutral, pH 7.0, hellige-truog; abrupt wavy boundary. Lab sample # 84P04943. many clay films surface features on faces of peds; few very fine roots throughout; common very coarse roots throughout; discontinuous - phpvsfiid 217775; discontinuous - phpvsfiid 217775
    1Cr—96 to 114 centimeters (37.8 to 44.9 inches); N 2/1 (N 2/1) exterior and reddish brown (5YR 4/3) interior weathered bedrock; fragments. Lab sample # 84P04944
    1R—114 to 119 centimeters (44.9 to 46.9 inches); unweathered bedrock; fragments. Not sampled.