IDENTIFIERS

  • Current Taxon Name (Soil Name): Libby
  • OSD
  • Series Extent
  • User Site ID: 41XC-671097-Libby
  • User Pedon ID: 41XC-671097-Libby
  • Vegetation Plot ID: 41XC-671097-Libby
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 95P0608
  • NCSS Pedon Lab Data NASIS Record ID - 67621
  • User Project ID: 2017-03
  • Project Name: SDJR - MLRA 41 - Libby-Gulch complex, 0 to 10 percent slopes
  • Print Date: 11/23/2024

    • 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: 31.6088889
  • Std. Longitude: -110.2316667
  • Datum: WGS84
  • Township: 21 S
  • Range: 21 E
  • Section: 17
  • PLSS Details: USGS Quadrangle - Lewis Springs; about 1350 feet south and 2520 feet west of the northeast corner
  • Map Unit: 97—Libby-Gulch complex, 0 to 10 percent slopes55—Libby-Gulch complex, 0 to 10 percent slopes
  • Country: US—United States
  • State: Arizona
  • County: AZ003—Cochise
  • MLRA: 41—Madrean Archipelago
  • Regional Office: 8—Phoenix, AZ
  • MLRA Soil Survey Area: SW-TUC—Tucson, Arizona
  • Non-MLRA Soil Survey Area: AZ666—Cochise County, Arizona, Northwestern PartAZ671—Cochise County, Arizona, Douglas-Tombstone Part

    • PEDON

  • Describers Name: Breckenfeld/McGuire
  • Current Taxonomic Class: Fine, mixed, superactive, thermic Petronodic Ustic Paleargids
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: NASIS
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Biol. Crust Type Dominant - none evident
  • Biol. Crust Type Secondary - none evident
  • Hydric: no


    • SITE

  • Parent Material: mixed fan alluvium
  • Landscape: intermontane basin
  • Landform: fan remnant
  • Geomorphic Component Terraces: tread
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: high
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments: 50.00 percent nonflat subrounded indurated 2- to 75-millimeter mixed,
  • Benchmark Soil?: no

    • VEGETATION

  • Ecological Sites. (Click Ecological Site ID For Link to EDIT.)
    Ecological Site ID Ecological Site Name Correlation Data Classifier
    R041XC313AZ Loamy Upland 12"-16" p.z.

    • SITE OBSERVATION

  • Observation Date: 2/11/1993 (actual site observation date)
  • Data Collector: Breckenfeld/McGuire
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, shrubby
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    A

    Bt

    2Btyc1

    2Btyc2

    0

    3

    33

    64

    3

    33

    64

    152

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    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    A

    Bt

    2Btyc1

    2Btyc2

    0

    3

    33

    64

    3

    33

    64

    152

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    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    A

    Bt

    2Btyc1

    2Btyc2

    0

    3

    33

    64

    3

    33

    64

    152

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    3

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    33

    37

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    Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ACCO2

    BASA2

    DAPU7

    FLCE

    GUSA2

    ISTE2

    PROSO

    Acacia constricta

    Baccharis sarothroides

    Dasyochloa pulchella

    Flourensia cernua

    Gutierrezia sarothrae

    Isocoma tenuisecta

    Prosopis

    whitethorn acacia

    desertbroom

    low woollygrass

    American tarwort

    broom snakeweed

    burroweed

    mesquite

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

    ochric epipedon

    argillic horizon

    abrupt textural change

    0—3

    3—152

    3—33

    —3—

    —149—

    —30—
    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

    4

    152

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    1289

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    360

    356

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    205

    17.5

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    18.6

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    A—0 to 3 centimeters (0.0 to 1.2 inches); yellowish red (5YR 5/6), dark red (2.5YR 3/6), moist; very gravelly sandy loam; 68 percent sand; 15 percent silt; 17 percent clay; weak fine granular structure; soft, very friable, nonsticky, nonplastic; common (4.0) very fine irregular and common (4.0) fine irregular pores; 40 percent by volume nonflat subrounded indurated 2-40-75 millimeter mixed fragments; very slight effervescence; slightly alkaline, pH 7.6, pH indicator solutions; abrupt smooth boundary.; dry when described; observed in pit, small
    Bt—3 to 33 centimeters (1.2 to 13.0 inches); dark red (2.5YR 3/6), dark reddish brown (2.5YR 3/4), moist; clay; 38 percent sand; 12 percent silt; 50 percent clay; strong fine angular blocky structure; hard, firm, moderately sticky, moderately plastic; many (10.0) fine roots; few (0.5) fine tubular pores; fragments; very slight effervescence; slightly alkaline, pH 7.4, pH indicator solutions; clear smooth boundary.; dry when described;
    2Btyc1—33 to 64 centimeters (13.0 to 25.2 inches); red (2.5YR 4/6) and red (2.5YR 5/6), dark reddish brown (2.5YR 3/4) and red (2.5YR 4/6), moist; gravelly clay; 39 percent sand; 20 percent silt; 41 percent clay; moderate medium subangular blocky structure; slightly hard, firm, moderately sticky, moderately plastic; few (0.5) fine roots; few (0.5) fine tubular pores; 55 percent distinct clay films on surfaces along pores and 55 percent distinct clay films on all faces of peds and 55 percent distinct clay films on rock fragments; 1 percent fine irregular ferromagnesian minerals throughout and 3 percent fine irregular carbonate concretions throughout and 15 percent medium irregular very strongly coherent cemented durinodes throughout and 3 percent medium irregular carbonate concretions throughout; 10 percent by volume nonflat subrounded indurated 2-40-75 millimeter mixed fragments and 15 percent by volume nonflat subrounded very strongly coherent cemented 2-40-75 millimeter carbonate concretions fragments; strong effervescence; moderately alkaline, pH 8.0, pH indicator solutions; abrupt wavy boundary.; dry when described;
    2Btyc2—64 to 152 centimeters (25.2 to 59.8 inches); red (2.5YR 4/6), dark reddish brown (2.5YR 3/4), moist; very gravelly clay loam; 38 percent sand; 24 percent silt; 38 percent clay; moderate fine subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; few (0.5) fine roots; few (0.5) fine tubular pores; 33 percent distinct clay films on rock fragments; 13 percent coarse irregular strongly coherent cemented carbonate concretions throughout and 55 percent medium irregular very strongly coherent cemented durinodes throughout and 13 percent medium irregular strongly coherent cemented carbonate concretions throughout; 55 percent by volume nonflat subrounded very strongly coherent cemented 2-40-75 millimeter carbonate concretions fragments; violent effervescence; moderately alkaline, pH 8.2, pH indicator solutions.; dry when described;