IDENTIFIERS

  • Current Taxon Name (Soil Name): San Joaquin
  • OSD
  • Series Extent
  • User Site ID: S1984CA115002
  • User Pedon ID: 84CA115002
  • Vegetation Plot ID: S1984CA115002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 84P0878
  • NCSS Pedon Lab Data NASIS Record ID - 55666
  • Print Date: 11/23/2024

    • 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: 39.1375008
  • Std. Longitude: -121.4000015
  • Datum: WGS84
  • Township: 15N
  • Range: 5E
  • Section: 22
  • PLSS Details: 793 meters S and 579 meters W of the NE corner
  • Location Description: Browns Valley quadrangle.
  • State: California
  • County: CA115—Yuba
  • MLRA: 17—Sacramento and San Joaquin Valleys

    • PEDON

  • Describers Name: D. Lytle and M. Levin
  • Current Taxonomic Class: Fine, mixed, active, thermic Abruptic Durixeralfs
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - San Joaquin
  • PSC - 41 to 64 cm.
  • Classificaton Date - 2/1/2010
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - San Joaquin
  • Taxonomic Class - Fine, mixed, thermic Abruptic Durixeralf
  • Taxon Kind - series
  • Classificaton Date - 9/1/1984
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: intermontane basin
  • Landform: terrace—stream or lake
  • Slope Position: lower third
  • Slope Shape Down: undulating
  • Flooding: frequent flooding
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1984 (actual site observation date)
  • Microrelief Kind: microdepression
  • Microrelief Elevation: 10
  • 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

    Avena fatua

    Bromus mollis

    wild oat

    —

    —

    —

    —

    —

    —

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

    ochric epipedon

    argillic horizon

    duripan

    0—10

    14—64

    64—104

    —-

    —-

    —-
    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

    —

    —

    37

    —

    180

    59

    —

    —

    17

    26

    7

    19

    —

    —

    —

    —

    —

    —

    —
    1A—0 to 10 centimeters (0.0 to 3.9 inches); light brown (7.5YR 6/4) exterior, brown (7.5YR 4/4) exterior, moist; loam; 30 percent yellowish red (5YR 5/8) fine distinct mottles; massive; very hard, friable, nonsticky, nonplastic; 5.5 very fine roots throughout and 5.5 fine roots throughout; 2.5 very fine interstitial and tubular and 2.5 fine and medium interstitial and tubular pores; 1 percent by volume 2-39-75 millimeter mixed fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary. Lab sample # 84P04924. Upper 2 cm is platy structure with darker organic colors.; many very fine roots throughout; many fine roots throughout; many fine distinct 5YR58 mottles
    1BA—10 to 23 centimeters (3.9 to 9.1 inches); strong brown (7.5YR 5/6) exterior, reddish brown (5YR 4/4) exterior, moist; loam; moderate medium subangular blocky, and moderate fine subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 5.5 very fine roots throughout; 5.5 very fine interstitial and tubular and 5.5 fine and medium interstitial and tubular pores; 1 percent by volume 2-39-75 millimeter mixed fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary. Lab sample # 84P04925. many very fine roots throughout
    1Bt—23 to 41 centimeters (9.1 to 16.1 inches); strong brown (7.5YR 5/6) exterior, reddish brown (5YR 4/4) exterior, moist; loam; moderate medium subangular blocky, and moderate fine subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 2.5 very fine roots throughout; 5.5 very fine interstitial and tubular and 2.5 coarse tubular pores; 37 percent distinct clay films between sand grains; 1 percent by volume 2-39-75 millimeter mixed fragments; slightly acid, pH 6.3, hellige-truog; abrupt smooth boundary. Lab sample # 84P04926. common clay films surface features between sand grains; common very fine roots throughout; patchy - phpvsfiid 217761; patchy - phpvsfiid 217761
    2Bt—41 to 64 centimeters (16.1 to 25.2 inches); brown (7.5YR 4/2) exterior, dark brown (7.5YR 3/4) exterior, moist; clay; strong medium prismatic, and strong medium angular blocky structure; extremely hard, firm, very sticky, very plastic; 0.5 very fine roots throughout; 0.5 very fine tubular and 2.5 very fine interstitial pores; 37 percent prominent pressure faces on faces of peds; fragments; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # 84P04927. Upper 2 cm or horizon has dry color of (7.5YR 4/6).; common pressure faces surface features on faces of peds; few very fine roots throughout; continuous - phpvsfiid 217762; continuous - phpvsfiid 217762
    2Csim—64 to 104 centimeters (25.2 to 40.9 inches);, brown (7.5YR 4/4) exterior, moist; unknown texture; strong medium angular blocky, and strong fine angular blocky structure; extremely hard, very firm, indurated by iron; 55 percent prominent , moist, black stains on faces of peds; fragments. Lab sample # 84P04928. Layers are variable in hardness but generally become softer with depth.; many black stains surface features on faces of peds; patchy - phpvsfiid 217763; patchy - phpvsfiid 217763