IDENTIFIERS

  • Current Taxon Name (Soil Name): Choice
  • OSD
  • Series Extent
  • User Site ID: S2012CA079001
  • User Pedon ID: S2012CA079001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Pedon # - 13N4944
  • NCSS Pedon Lab Data NASIS Record ID - 73265
  • Print Date: 5/20/2024

    • 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: 35.5665000
  • Std. Longitude: -120.1600280
  • Datum: WGS84
  • Location Description: SLO-1 WxStn Bitterwater Road 10/1/12 Started installation of Soil Climate Station for SLO Rangeland project. Soil temp and moisture sensors @ 3 inches, 8 inchs, and 20 inches, air temp, rain. Note: The land was farmed more than 30 years ago but has reverted to naturalized plants - mainly annual grasses. The land is used for grazing and is rangeland. This site is also a University of California Cooperative Extension research site. Three rotating forage production research exclosures are located at this site and clippings of peak production and residuual dry matter collected annually.
  • State: California
  • County: CA079—San Luis Obispo
  • MLRA: 15—Central California Coast Range
  • Regional Office: SW—Southwest
  • MLRA Soil Survey Area: SW-TEM—Templeton, California
  • Non-MLRA Soil Survey Area: CA667—San Luis Obispo County, California, Carrizo Plain Area

    • PEDON

  • Describers Name: Phil Smith, Bev Harben
  • Current Taxonomic Class: Fine, smectitic, thermic Vertic Calcixerepts
  • Current Taxon Kind: family
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: research site
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - Choice
  • Taxonomic Class - Fine, smectitic, thermic Vertic Calcixerepts
  • Taxon Kind - family
  • PSC - 25 to 100 cm.
  • Classificaton Date - 2/9/2013
  • Classifier - Phil Smith
  • Soil Taxonomic Edition - eleventh edition
  • Moisture Class - xeric
  • Moisture SUBClass - xeric
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from sandstone and shale
  • Landscape: hills
  • Landform: hill
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: convex
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/4/2012 (monitoring equipment installed)
  • Data Collector: Phil Smith, Bev Harben
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    calcic horizon

    0—37

    52—200

    —37—

    —148—
    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

    9

    —

    —

    641

    —

    262

    254

    —

    190

    15

    —

    —

    —

    —

    —

    —

    —

    SLO-1

    SLO_NRCS_Bitterwater

    SM/ST
    0 to 6 centimeters (0.0 to 2.4 inches); light brownish gray (10YR 6/2) broken face, dark grayish brown (10YR 4/2) broken face, moist; silty clay loam; 30 percent clay; weak thin platy parts to moderate medium angular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; common (3.0) very fine roots between peds; 4 reversible trans-horizon cracks per meter at a depth of 52 cm with a width of 1.5 cm that extend above and below the horizon and 4 reversible trans-horizon cracks per meter at a depth of 52 cm with a width of 1.5 cm that extend above the horizon; 3 percent worm casts; fragments; very slight effervescence, by hcl, unspecified; slightly alkaline, pH 7.8, pH indicator solutions; abrupt wavy boundary.; dry when described; observed in pit, large or quarry
    6 to 22 centimeters (2.4 to 8.7 inches); light brownish gray (10YR 6/2) broken face, dark grayish brown (10YR 4/2) broken face, moist; silty clay loam; 30 percent clay; moderate very coarse prismatic parts to moderate coarse angular blocky parts to moderate medium angular blocky structure; soft, friable, slightly sticky, moderately plastic; common (3.0) very fine roots between peds; 4 reversible trans-horizon cracks per meter at a depth of 52 cm with a width of 1.5 cm that extend above and below the horizon; and 3 percent worm casts; fragments; very slight effervescence, by hcl, unspecified; slightly alkaline, pH 7.8, pH indicator solutions; clear wavy boundary.; dry when described; observed in pit, large or quarry
    22 to 52 centimeters (8.7 to 20.5 inches); light brownish gray (10YR 6/2) broken face, dark grayish brown (10YR 4/2) broken face, moist; silty clay; 42 percent clay; weak coarse prismatic parts to weak coarse subangular blocky structure; slightly hard, friable, slightly sticky, very plastic; common (1.0) very fine roots throughout; many (5.0) very fine dendritic tubular pores; 4 reversible trans-horizon cracks per meter at a depth of 52 cm with a width of 1.5 cm that extend above and below the horizon; 2 percent prominent carbonate coats on all faces of peds; fragments; slight effervescence, by hcl, unspecified; moderately alkaline, pH 8.2, pH indicator solutions; clear wavy boundary.; moderately dry when described; observed in pit, large or quarry
    52 to 69 centimeters (20.5 to 27.2 inches); 50 percent yellowish brown (10YR 5/4) broken face and 50 percent pale brown (10YR 6/3) broken face, 50 percent dark grayish brown (10YR 4/2) broken face and 50 percent yellowish brown (10YR 5/6) broken face, moist; silty clay; 45 percent clay; weak coarse subangular blocky, and weak medium subangular blocky structure; slightly hard, very friable, slightly sticky, very plastic; common (4.0) very fine dendritic tubular pores; 4 reversible trans-horizon cracks per meter at a depth of 69 cm with a width of 0.2 cm that extend below the horizon; 5 percent prominent carbonate coats on all faces of peds; 8 percent fine prominent irregular noncoherent cemented carbonate masses with sharp boundaries in matrix; fragments; strong effervescence, by hcl, unspecified; moderately alkaline, pH 8.2, pH indicator solutions; gradual wavy boundary.; moist when described; observed in pit, large or quarry
    69 to 109 centimeters (27.2 to 42.9 inches); 95 percent light yellowish brown (10YR 6/4) broken face and 5 percent yellowish brown (10YR 5/4) broken face, 95 percent yellowish brown (10YR 5/6) broken face and 5 percent dark grayish brown (10YR 4/2) broken face, moist; silty clay; 48 percent clay; 10 percent dark grayish brown (10YR 4/2) medium prominent mottles; moderate medium subangular blocky structure; slightly hard, very friable, slightly sticky, very plastic; few (1.0) very fine dendritic tubular pores; 9 percent coarse prominent irregular noncoherent cemented carbonate masses with sharp boundaries in matrix and 9 percent medium prominent irregular noncoherent cemented carbonate masses with sharp boundaries in matrix; fragments; violent effervescence, by hcl, unspecified; moderately alkaline, pH 8.2, pH indicator solutions; gradual wavy boundary.; moist when described; observed in pit, large or quarry
    109 to 200 centimeters (42.9 to 78.7 inches); 95 percent light yellowish brown (10YR 6/4) broken face and 95 percent brown (10YR 4/3) broken face, 5 percent brown (10YR 4/3) broken face and 5 percent yellowish brown (10YR 5/6) broken face, moist; silty clay; 48 percent clay; 10 percent dark grayish brown (10YR 4/2) medium prominent mottles; moderate medium subangular blocky structure; slightly hard, very friable, slightly sticky, very plastic; few (0.3) very fine dendritic tubular pores; 9 percent coarse prominent irregular noncoherent cemented carbonate masses with sharp boundaries in matrix and 9 percent medium prominent irregular noncoherent cemented carbonate masses with sharp boundaries in matrix; fragments; violent effervescence, by hcl, unspecified; moderately alkaline, pH 8.2, pH indicator solutions.; moist when described; observed in pit, large or quarry