IDENTIFIERS

  • Current Taxon Name (Soil Name): LAVATOP
  • OSD
  • Series Extent
  • User Site ID: 821-H
  • User Pedon ID: 95CA612017
  • Vegetation Plot ID: 821-H
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - NSSL
  • Lab Pedon # - 96P0135
  • NCSS Pedon Lab Data NASIS Record ID - 68213
  • Print Date: 11/26/2024

    • 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: 39.6292687
  • Std. Longitude: -121.1493771
  • Datum: WGS84
  • Township: 21 N
  • Range: 7 E
  • Section: 36
  • PLSS Details: approximately 1250 feet east and 250 feet north of the southwest corner
  • Location Description: About 6.1 miles east of Camp Eighteen
  • Map Unit: 847—Bonneyridge-Lewisflat , 15 to 30 percent slopes
  • State: California
  • County: CA007—Butte
  • MLRA: 22—Sierra Nevada Range
  • Non-MLRA Soil Survey Area: CA612—Butte Area, California, Parts of Butte and Plumas Counties
  • 7.5 Minute USGS Quad: 39121-F2—Cascade, California

    • PEDON

  • Describers Name: BG
  • Current Taxonomic Class: Medial-skeletal, amorphic, mesic Humic Haploxerands
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Correlated Information:
  • Soil Name - LAVATOP
  • PSC - 1 to 65 cm.
  • Classificaton Date - 7/24/2012
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Lavatop
  • Classificaton Date - 6/19/1995
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: mountains
  • Landform: ridge
  • Hill Slope Profile: summit
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: h slight weathered basalt
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/19/1995 (actual site observation date)
  • Air Photo ID: 205-126
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID - WOOD5
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ARCTO3

    ARPA6

    PIPO

    QUKE

    Arctostaphylos

    Arctostaphylos patula

    Pinus ponderosa

    Quercus kelloggii

    manzanita

    greenleaf manzanita

    ponderosa pine

    California black oak

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    indurated

    65 - 70

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

    umbric epipedon

    andic soil properties

    lithic contact

    1—65

    1—65

    65—70

    —-

    —-

    —-
    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

    2

    —

    —

    1283

    —

    190

    1854

    —

    —

    11.1

    —

    —

    11.7

    —

    —

    —

    —

    —

    —

    —
    Oi—0 to 1 centimeters (0.0 to 0.4 inches); slightly decomposed plant material; fragments; abrupt smooth boundary.
    A—1 to 9 centimeters (0.4 to 3.5 inches); dark brown (10YR 3/3), very dark grayish brown (10YR 3/2), moist; gravelly medial fine sandy loam; 18 percent clay; weak very fine subangular blocky structure; loose, very friable, nonsticky, nonplastic; 0.1 very fine roots and 21.0 fine and medium roots; 21.0 very fine interstitial pores; 25 percent by volume subangular 2-39-75 millimeter basalt fragments; noneffervescent; strongly acid, pH 5.5, hellige-truog; clear smooth boundary. Lab sample # 96P1177; moist when described;
    Bw1—9 to 39 centimeters (3.5 to 15.4 inches); brown (10YR 4/3), very dark grayish brown (10YR 3/2), moist; very gravelly medial sandy loam; 20 percent clay; weak very fine subangular blocky structure; loose, very friable, nonsticky, slightly plastic; 0.1 very coarse roots and 21.0 fine and medium roots and 0.1 coarse roots; 21.0 very fine interstitial pores; 5 percent distinct clay films on rock fragments; 40 percent by volume subangular 2-39-75 millimeter basalt fragments; noneffervescent; strongly acid, pH 5.4, hellige-truog; clear smooth boundary. Lab sample # 96P1178; moist when described;. patchy - phpvsfiid 108486; patchy - phpvsfiid 108486
    Bw2—39 to 65 centimeters (15.4 to 25.6 inches); dark yellowish brown (10YR 4/4), dark brown (10YR 3/3), moist; extremely gravelly medial sandy loam; 18 percent clay; weak very fine subangular blocky structure; loose, very friable, nonsticky, slightly plastic; 21.0 medium roots; 21.0 very fine interstitial pores; 30 percent by volume subangular 2-39-75 millimeter basalt fragments and 50 percent by volume subangular 75-162-250 millimeter basalt fragments; noneffervescent; strongly acid, pH 5.3, hellige-truog; abrupt smooth boundary. Lab sample # 96P1179; moist when described;
    R—65 to 70 centimeters (25.6 to 27.6 inches); bedrock; fragments.