IDENTIFIERS

  • Current Taxon Name (Soil Name): Bonita
  • OSD
  • Series Extent
  • User Site ID: S1969AZ009001
  • User Pedon ID: S1969AZ009001
  • Vegetation Plot ID: S1969AZ009001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 69C0175
  • NCSS Pedon Lab Data NASIS Record ID - 43748
  • Print Date: 11/21/2024

    • 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: 32.5061111
  • Std. Longitude: -110.0000000
  • Datum: WGS84
  • Township: 11S
  • Range: 22E
  • Section: 4
  • PLSS Details: 2280 feet north and 600 feet west of the SE corner
  • Location Description: About 21 miles northwest of Willcox.
  • State: Arizona
  • County: AZ009—Graham

    • PEDON

  • Describers Name: D. Richmond, H. Havens, K. Dunstan
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Bonita
  • Taxonomic Class - Fine, montmorillonitic Typic Chromusterts
  • PSC - 25 to 100 cm.
  • Classificaton Date - 10/13/1969
  • Moisture Class - aridic (torric)
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landform: fan
  • Slope Shape Down: convex
  • Runoff: very low
  • Drainage Class: well
  • Surface Fragments: 20.00 percent rounded 20- to 75-millimeter basalt, 5.00 percent rounded 75- to 250-millimeter basalt,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/13/1969 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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

    PLMU3

    PLMU3

    Pleuraphis mutica

    Pleuraphis mutica

    tobosagrass

    tobosagrass

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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

    2

    —

    —

    1396

    —

    45

    356

    —

    —

    16.1

    26.1

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    A11—0 to 5 centimeters (0.0 to 2.0 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; clay; moderate fine granular, and weak fine subangular blocky structure; soft, friable, moderately sticky, moderately plastic; 21.0 fine and medium roots; 21.0 fine interstitial pores; fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; abrupt smooth boundary. Lab sample # 69C00891; dry when described;
    A12—5 to 20 centimeters (2.0 to 7.9 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; clay; moderate medium and coarse subangular blocky structure; hard when dry, firm, moderately sticky, moderately plastic; 21.0 fine and medium roots; 0.5 fine interstitial pores; 10 percent by volume rounded 20-?-150 millimeter basalt fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; clear wavy boundary. Lab sample # 69C00892; dry when described;
    A13—20 to 28 centimeters (7.9 to 11.0 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; clay; moderate coarse subangular blocky structure; very hard, firm, moderately sticky, very plastic; 3.0 fine and medium roots; slickensides (pedogenic) and 10 percent pressure faces; 3 percent by volume rounded 20-?-75 millimeter basalt fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; clear wavy boundary. Lab sample # 69C00893; dry when described;
    C1—28 to 48 centimeters (11.0 to 18.9 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; clay; massive; very hard, firm, moderately sticky, very plastic; 0.5 fine roots; slickensides (pedogenic) and 30 percent pressure faces; 3 percent by volume rounded 20-?-75 millimeter basalt fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; clear wavy boundary. Lab sample # 69C00894; dry when described;
    C2—48 to 79 centimeters (18.9 to 31.1 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; clay; massive; very hard, firm, moderately sticky, very plastic; 0.5 fine roots; slickensides (pedogenic) and 30 percent pressure faces; 3 percent by volume rounded 2-39-75 millimeter basaltic-ash fragments; slight effervescence; moderately alkaline, pH 8.0, thymol-blue; clear wavy boundary. Lab sample # 69C00895; dry when described;
    2C3CA—79 to 102 centimeters (31.1 to 40.2 inches); reddish yellow (7.5YR 7/6) and reddish brown (5YR 5/4), strong brown (7.5YR 5/6) and dark reddish brown (5YR 3/4) and light reddish brown (5YR 6/4), moist; gravelly clay loam; weak and moderate fine and medium subangular blocky, and angular blocky structure; hard when dry, friable, slightly sticky, slightly plastic; 0.5 fine roots; 3.0 fine interstitial pores; 30 percent clay films on faces of peds; 21 percent fine irregular noncoherent cemented lime masses; 20 percent by volume rounded 20-?-75 millimeter basalt fragments and 20 percent by volume rounded 100-?-200 millimeter basalt fragments; violent effervescence; moderately alkaline, pH 8.0, thymol-blue; gradual wavy boundary. Lab sample # 69C00896; dry when described;
    2C4CA—102 to 135 centimeters (40.2 to 53.1 inches); pinkish white (7.5YR 8/2) and reddish brown (5YR 5/4), light brown (7.5YR 6/4) and dark reddish brown (5YR 3/4), moist; gravelly clay loam; weak and moderate fine and medium subangular blocky, and angular blocky structure; hard when dry, friable, slightly sticky, moderately plastic; 0.1 fine roots; 3.0 fine and medium tubular and 3.0 fine interstitial pores; 30 percent clay films on faces of peds and 30 percent black (10YR 2/1) coats on faces of peds; irregular noncoherent cemented white (10YR 8/1) lime masses; 20 percent by volume rounded 20-?-75 millimeter basalt fragments and 20 percent by volume rounded 100-?-200 millimeter basalt fragments; violent effervescence; moderately alkaline, pH 8.0, thymol-blue; gradual wavy boundary. Lab sample # 69C00897; dry when described;
    2C5CA—135 to 160 centimeters (53.1 to 63.0 inches); reddish brown (5YR 4/4) and pinkish white (7.5YR 8/2), dark reddish brown (5YR 3/4) and light brown (7.5YR 6/4), moist; gravelly clay loam; weak fine subangular blocky structure; hard when dry, friable, slightly sticky, moderately plastic; 0.1 fine roots; 3.0 fine and medium tubular and 3.0 fine interstitial pores; 10 percent clay films on faces of peds and 30 percent black (10YR 2/1) coats on faces of peds; irregular noncoherent cemented white (10YR 8/1) lime masses; 20 percent by volume rounded 100-?-200 millimeter basalt fragments; strong effervescence. Lab sample # 69C00898; dry when described;