IDENTIFIERS

  • Current Taxon Name (Soil Name): Brownscreek
  • OSD
  • Series Extent
  • User Site ID: S1983CA105013
  • User Pedon ID: 83CA105013
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 84P0088
  • NCSS Pedon Lab Data NASIS Record ID - 53782
  • Print Date: 2/16/2025

    • 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: 40.6433334
  • Std. Longitude: -122.9925003
  • Datum: WGS84
  • Township: 32N
  • Range: 10W
  • Section: 10
  • PLSS Details: 427 meters E and 503 meters N of SW corner
  • State: California
  • County: CA105—Trinity
  • MLRA: 5—Siskiyou-Trinity Area

    • PEDON

  • Describers Name: D. Howell
  • Current Taxonomic Class: Loamy-skeletal, mixed, superactive, mesic Ultic Haploxeralfs
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 13
  • Correlated Information:
  • Soil Name - Brownscreek
  • PSC - 33 to 83 cm.
  • Classificaton Date - 2/1/2010
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Callayomi V
  • Classificaton Date - 10/1/1983
  • 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: backslope
  • Slope Position: middle third
  • Slope Shape Down: convex
  • Runoff: very high
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/1/1983 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—15

    33—86

    —-

    —-
    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

    67

    —

    —

    702

    —

    135

    400

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    O—0 to 3 centimeters (0.0 to 1.2 inches); undecomposed organic matter; fragments. Not sampled
    A—3 to 18 centimeters (1.2 to 7.1 inches); strong brown (7.5YR 5/6) interior, brown (7.5YR 4/4) crushed, moist; gravelly loam; 22 percent clay; moderate very fine and fine subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 2.5 fine and medium roots and 5.5 coarse roots; 2.5 very fine and fine tubular and 2.5 coarse tubular pores; 1 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 # 84P00435. many coarse roots; common fine and medium roots
    BA—18 to 36 centimeters (7.1 to 14.2 inches); reddish yellow (7.5YR 6/6) interior, strong brown (7.5YR 4/6) crushed, moist; very gravelly loam; 24 percent clay; moderate fine subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 2.5 fine and medium roots and 5.5 coarse roots; 2.5 very fine and fine tubular and 0.5 medium tubular pores; 2 percent by volume 75-162-250 millimeter metamorphic, unspecified fragments and 33 percent by volume 2-39-75 millimeter metamorphic, unspecified fragments; slightly acid, pH 6.3, hellige-truog; gradual wavy boundary. Lab sample # 84P00436. many coarse roots; common fine and medium roots
    Bt1—36 to 64 centimeters (14.2 to 25.2 inches); reddish yellow (7.5YR 6/8) interior, strong brown (7.5YR 4/6) crushed, moist; very gravelly clay loam; 28 percent clay; moderate fine subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 2.5 very fine and fine roots and 2.5 medium roots; 2.5 very fine tubular and 0.5 fine tubular pores; 37 percent clay films on faces of peds and in pores; 2 percent by volume 75-162-250 millimeter metamorphic, unspecified fragments and 33 percent by volume 2-39-75 millimeter metamorphic, unspecified fragments; slightly acid, pH 6.3, hellige-truog; gradual wavy boundary. Lab sample # 84P00437. common clay films surface features on faces of peds and in pores; common very fine and fine roots; common medium roots
    Bt2—64 to 89 centimeters (25.2 to 35.0 inches); reddish yellow (7.5YR 6/8) interior, strong brown (7.5YR 4/6) crushed, moist; extremely gravelly loam; 25 percent clay; weak fine and medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; 2.5 very fine and fine roots and 0.5 medium roots; 0.5 very fine tubular pores; 15 percent clay films on faces of peds and in pores; 10 percent by volume 75-162-250 millimeter metamorphic, unspecified fragments and 65 percent by volume 2-39-75 millimeter metamorphic, unspecified fragments; slightly acid, pH 6.5, hellige-truog; clear wavy boundary. Lab sample # 84P00438. few clay films surface features on faces of peds and in pores; common very fine and fine roots; few medium roots
    R—89 to 103 centimeters (35.0 to 40.6 inches); unweathered bedrock; fragments. Lab sample # 84P00439. Extremely fractured mica schist 10 to 15 percent fine material same color and texture of the Bt2 in fractures.