IDENTIFIERS

  • Current Taxon Name (Soil Name): Secca
  • OSD
  • Series Extent
  • User Site ID: S1968CA057005
  • User Pedon ID: S1968CA057005
  • Vegetation Plot ID: S1968CA057005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 68C0110
  • NCSS Pedon Lab Data NASIS Record ID - 43565
  • Print Date: 11/25/2024

    • 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: 39.1758347
  • Std. Longitude: -121.1108322
  • Datum: WGS84
  • Township: 15N
  • Range: 8E
  • Section: 4
  • PLSS Details: 300 yards north of SW corner of SE1/4 corner
  • Location Description: 4 miles SW of Grass Valley, California; 300 yards north of intersection of McCourtney and Wolf Creek Mountain Lookout Roads, 90 feet west of McCourtney Road.
  • State: California
  • County: CA057—Nevada
  • MLRA: 22A—Sierra Nevada and Tehachapi Mountains
  • Non-MLRA Soil Survey Area: CA619—Nevada County Area, California

    • PEDON

  • Describers Name: G. M. Kennedy, T. M. Ryan, G. Staidl
  • Current Taxonomic Class: Fine, mixed, active, mesic Mollic Palexeralfs
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - Secca
  • PSC - 23 to 74 cm.
  • Classificaton Date - 7/23/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Secca
  • Classificaton Date - 9/3/1968
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/3/1968 (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

    ARCTO3

    CEANO

    Arctostaphylos

    Ceanothus

    manzanita

    ceanothus

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    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

    8

    —

    —

    701

    —

    135

    1168

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    15

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    A1—0 to 8 centimeters (0.0 to 3.1 inches); brown (7.5YR 5/4), dark reddish brown (5YR 3/3), moist; gravelly loam; strong medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots; 21.0 very fine interstitial pores; fragments; moderately acid, pH 6.0, hellige-truog; abrupt smooth boundary. Lab sample # 68C00825; dry when described;
    A1—0 to 8 centimeters (0.0 to 3.1 inches); fragments. Lab sample # 68C00831
    A3—8 to 23 centimeters (3.1 to 9.1 inches); brown (7.5YR 5/4), dark reddish brown (5YR 3/4), moist; gravelly loam; moderate medium subangular blocky structure; hard when dry, friable, moderately sticky, moderately plastic; 3.0 very fine and fine roots and 3.0 medium and coarse roots; 3.0 very fine interstitial pores; fragments; moderately acid, pH 5.8, hellige-truog; clear wavy boundary. Lab sample # 68C00826; dry when described;
    B21T—23 to 58 centimeters (9.1 to 22.8 inches); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; clay; moderate coarse prismatic structure; hard when dry, firm, moderately sticky, very plastic; 0.5 very fine and fine roots and 0.5 medium roots; 3.0 very fine tubular pores; 30 percent clay films on faces of peds and in pores; fragments; slightly alkaline, pH 7.5, hellige-truog; gradual wavy boundary. Lab sample # 68C00827; moist when described;
    B22T—58 to 94 centimeters (22.8 to 37.0 inches); brown (7.5YR 5/4), brown (7.5YR 4/4), moist; clay; weak coarse prismatic structure; very hard, firm, moderately sticky, very plastic; 0.5 very fine roots and medium roots; 0.5 very fine tubular pores; 30 percent clay films on faces of peds and in pores; fragments; slightly alkaline, pH 7.5, hellige-truog; clear irregular boundary. Lab sample # 68C00828; moist when described;
    B3T—94 to 109 centimeters (37.0 to 42.9 inches); pale brown (10YR 6/3), light olive brown (2.5Y 5/4), moist; clay; massive; hard when dry, firm, moderately sticky, very plastic; 0.5 very fine tubular pores; reddish brown (5YR 4/4) clay films in root channels and/or pores; fragments; slightly alkaline, pH 7.5, hellige-truog; clear wavy boundary. Lab sample # 68C00829; moist when described;. continuous - phpvsfiid 188696; continuous - phpvsfiid 188696
    C—109 to 127 centimeters (42.9 to 50.0 inches); white (5Y 8/1), pink (5YR 7/4), moist; gravelly loam; massive; very hard, very firm, slightly sticky, moderately plastic; red (2.5YR 4/8), moist, and red (2.5YR 5/6), moist, and 75 percent reddish yellow (5YR 6/6) clay films; fragments; neutral, pH 7.0, hellige-truog. Lab sample # 68C00830; moist when described;