IDENTIFIERS

  • Current Taxon Name (Soil Name): Vallecitos
  • OSD
  • Series Extent
  • User Site ID: S1959CA001009
  • User Pedon ID: S1959CA001009
  • Vegetation Plot ID: S1959CA001009
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A3026
  • NCSS Pedon Lab Data NASIS Record ID - 38155
  • Print Date: 12/4/2024

    • 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: 37.5222206
  • Std. Longitude: -121.5388870
  • Datum: WGS84
  • Township: 5S
  • Range: 4E
  • Section: 4
  • PLSS Details: In the NE1/4 of the SE1/4 of the SW 1/4
  • Location Description: in the southeast corner of the county.
  • State: California
  • County: CA001—Alameda
  • MLRA: 15—Central California Coast Range
  • Non-MLRA Soil Survey Area: CA609—Alameda Area, California

    • PEDON

  • Describers Name: L. E. Welch
  • Current Taxonomic Class: Fine, smectitic, thermic Lithic Argixerolls
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 9
  • Correlated Information:
  • Soil Name - Vallecitos
  • PSC - 25 to 46 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Vallecitos
  • Classificaton Date - 6/1/1959
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1959 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    CHRYS9

    QUERC

    Chrysothamnus

    Quercus

    rabbitbrush

    oak

    —

    —

    —

    —

    —

    —
    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

    —

    —

    716

    —

    180

    635

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A11—0 to 3 centimeters (0.0 to 1.2 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; loam; weak fine granular structure; slightly hard, friable, slightly sticky; 21.0 very fine roots; 21.0 very fine pores; fragments; clear smooth boundary. Lab sample # 40A23733
    A12—3 to 18 centimeters (1.2 to 7.1 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; loam; massive; hard when dry, friable, slightly sticky; 21.0 very fine roots; 21.0 very fine pores; fragments; clear smooth boundary. Lab sample # 40A23734
    B21—18 to 36 centimeters (7.1 to 14.2 inches); brown (7.5YR 5/4), reddish brown (5YR 4/3), moist; clay loam; massive; very hard, firm, slightly sticky, slightly plastic; 21.0 very fine roots; 21.0 very fine pores; clay films in root channels and/or pores; fragments; clear smooth boundary. Lab sample # 40A23735. continuous - phpvsfiid 196536; continuous - phpvsfiid 196536
    B22—36 to 46 centimeters (14.2 to 18.1 inches); brown (10YR 5/3), brown (7.5YR 4/3), moist; clay; massive; very hard, firm, slightly sticky, moderately plastic; 1.0 very fine roots; 21.0 very fine pores; clay bridges and clay films in root channels and/or pores; fragments; abrupt irregular boundary. Lab sample # 40A23736. continuous - phpvsfiid 196537; continuous - phpvsfiid 196537
    R—46 to 100 centimeters (18.1 to 39.4 inches); greenish gray (5GY 6/1), greenish gray (5GY 5/1), moist; fragments. Lab sample # 40A23737. Dark greenish gray schist