IDENTIFIERS

  • Current Taxon Name (Soil Name): Sobrante
  • OSD
  • Series Extent
  • User Site ID: S1990CA115002
  • User Pedon ID: 90CA115002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Link to Laboratory Results
  • Lab Pedon # - 91P0412
  • NCSS Pedon Lab Data NASIS Record ID - 63458
  • Print Date: 1/24/2022
  • 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: 39.2694435
  • Std. Longitude: -121.3022232
  • Datum: WGS84
  • Township: 16N
  • Range: 6E
  • Section: 4
  • PLSS Details: 1200 feet N and 2200 feet W of SE 1/4 corner
  • Location Description: Upper rainfall simulator site, 0.4 mile west of Sierra foothill field station HQ on farm road, then 2.2 miles NE on farm road to site. Oregon House 7.5 min quad.
  • State: California
  • County: CA115—Yuba
  • PEDON

  • Describers Name: W.B.S., J.R.M.
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, thermic Ultic Haploxeralfs
  • Current Taxon Kind: taxadjunct
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Sobrante
  • Classificaton Date - 6/15/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Sobrante
  • Taxonomic Class - Fine-loamy, mixed, thermic Mollic Haploxeralf
  • Taxon Kind - series
  • Classificaton Date - 10/1/1990
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no
  • Pedon Text Note(s): PEDON NOTE, UNFORMATTED - Vegetation: annual grass-oak, wild oats, soft chess, medusa head, 35% blue oak; Parent Material: metasedimentary-greenstone; Relief: strongly sloping; bulk samples taken from A1, BA, Bt1; clods for BD taken from A1, BA.


  • SITE

  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no
  • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1990 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
  • 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

    9

    419

    270

    A1—0 to 10 centimeters (0.0 to 3.9 inches); yellowish red (5YR 5/6), yellowish red (5YR 4/6), moist; loam; weak fine and medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots; 0.5 fine and medium interstitial and tubular pores; 2 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.1, hellige-truog; clear smooth boundary. Lab sample # 91P02379. few very fine roots
    BA—10 to 20 centimeters (3.9 to 7.9 inches); yellowish red (5YR 5/6), reddish brown (5YR 4/4), moist; loam; weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots; 0.5 very fine interstitial and tubular pores; 2 percent by volume 2-39-75 millimeter unspecified fragments; moderately acid, pH 6.0, hellige-truog; clear smooth boundary. Lab sample # 91P02380. few very fine roots
    Bt1—20 to 43 centimeters (7.9 to 16.9 inches); yellowish red (5YR 5/6), reddish brown (5YR 4/4), moist; clay loam; moderate medium and coarse subangular blocky structure; hard, friable, moderately sticky, slightly plastic; 0.5 very fine roots and 0.5 fine and medium roots; 0.5 very fine and fine tubular and 0.5 very fine interstitial pores; 37 percent clay films; 5 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.4, hellige-truog; clear wavy boundary. Lab sample # 91P02381. common clay films surface features; few fine and medium roots; few very fine roots
    Bt2—43 to 64 centimeters (16.9 to 25.2 inches); reddish brown (5YR 5/4), reddish brown (5YR 4/4), moist; gravelly clay loam; massive; hard, very friable, moderately sticky, slightly plastic; 0.5 very fine roots and 0.5 fine and medium roots; 0.5 very fine interstitial and tubular pores; 37 percent clay films; 15 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.4, hellige-truog; abrupt smooth boundary. common clay films surface features; few fine and medium roots; few very fine roots
    R—64 to 66 centimeters (25.2 to 26.0 inches); fragments. hard fractured rock