IDENTIFIERS

  • Current Taxon Name (Soil Name): Graham
  • OSD
  • Series Extent
  • User Site ID: S1977AZ009002
  • User Pedon ID: S1977AZ009002
  • Vegetation Plot ID: S1977AZ009002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A1147
  • NCSS Pedon Lab Data NASIS Record ID - 34756
  • Print Date: 11/11/2024

    • 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: 32.9334373
  • Std. Longitude: -109.5884323
  • Datum: WGS84
  • Township: 6S
  • Range: 27E
  • Section: 4
  • PLSS Details: 2540 feet W and 300 feet N of the SE corner
  • State: Arizona
  • County: AZ009—Graham
  • Non-MLRA Soil Survey Area: AZ673—Graham County, Arizona, Southwestern Part

    • PEDON

  • Describers Name: A DeWall, S Hutchinson, D Richmond
  • Current Taxonomic Class: Clayey, smectitic, thermic Lithic Argiustolls
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 2
  • Sampled As Information:
  • Soil Name - Graham
  • Taxonomic Class - Clayey, smectitic, thermic Lithic Argiustolls
  • PSC - 3 to 40 cm.
  • Classificaton Date - 3/2/1977
  • Moisture Class - ustic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: basalt
  • Runoff: medium
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 3/2/1977 (actual site observation date)
  • Surface Cover Properties:
  • 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

    ACGR

    AGSM

    BOBA3

    BOCU

    BOER4

    BOHI2

    DASYL

    LINDE2

    LYCIU

    LYCUR

    PLMU3

    Acacia greggii

    Agropyron smithii

    Bothriochloa barbinodis

    Bouteloua curtipendula

    Bouteloua eriopoda

    Bouteloua hirsuta

    Dasylirion

    Lindera

    Lycium

    Lycurus

    Pleuraphis mutica

    catclaw acacia

    —

    cane bluestem

    sideoats grama

    black grama

    hairy grama

    sotol

    spicebush

    desert-thorn

    wolfstail

    tobosagrass

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    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

    5

    —

    —

    1463

    —

    90

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 3 centimeters (0.0 to 1.2 inches); reddish brown (5YR 5/3), dark reddish brown (5YR 3/3), moist; extremely cobbly silty clay loam; weak fine platy parts to weak fine granular structure; slightly hard, friable, moderately sticky, very plastic; 3.0 very fine roots and 0.5 fine roots; 3.0 very fine vesicular and 3.0 very fine interstitial pores; 15 percent by volume 2-?-75 millimeter unspecified fragments and 20 percent by volume 250-?-? millimeter unspecified fragments and 50 percent by volume 75-?-250 millimeter unspecified fragments; noneffervescent; neutral, pH 7.0, thymol-blue; abrupt smooth boundary. Lab sample # 40A08704
    Bt21—3 to 9 centimeters (1.2 to 3.5 inches); dark reddish gray (5YR 4/2), dark reddish brown (5YR 3/2), moist; silty clay; weak fine subangular blocky structure; very hard, firm, moderately sticky, very plastic; 21.0 very fine and fine roots and 3.0 medium roots; 3.0 very fine and fine tubular pores; 3 percent pressure faces; 15 percent by volume 2-?-75 millimeter basalt fragments; noneffervescent; slightly alkaline, pH 7.5, thymol-blue; clear smooth boundary. Lab sample # 40A08705
    Bt22—9 to 15 centimeters (3.5 to 5.9 inches); reddish brown (5YR 5/3), dark reddish brown (5YR 3/3), moist; clay; moderate fine subangular blocky structure; very hard, firm, moderately sticky, very plastic; 3.0 very fine and fine roots; 21.0 very fine and fine tubular pores; 21 percent pressure faces; 15 percent by volume 75-?-250 millimeter basalt fragments; noneffervescent; slightly alkaline, pH 7.5, thymol-blue; gradual smooth boundary. Lab sample # 40A08706
    Bt23—15 to 25 centimeters (5.9 to 9.8 inches); reddish brown (5YR 5/3), dark reddish brown (5YR 3/3), moist; clay; strong medium prismatic parts to strong fine and medium subangular blocky structure; very hard, firm, moderately sticky, very plastic; 3.0 very fine and fine roots; 21.0 very fine and fine tubular pores; 21 percent pressure faces; 10 percent by volume 75-?-250 millimeter basalt fragments; noneffervescent; slightly alkaline, pH 7.5, thymol-blue; gradual smooth boundary. Lab sample # 40A08707
    Bt24—25 to 40 centimeters (9.8 to 15.7 inches); reddish brown (5YR 5/3), dark reddish brown (5YR 3/3), moist; clay; strong medium prismatic parts to strong fine and medium subangular blocky structure; very hard, firm, moderately sticky, very plastic; 3.0 very fine and fine roots; 21.0 very fine and fine tubular pores; 21 percent pressure faces; 5 percent by volume 75-?-250 millimeter basalt fragments; noneffervescent; slightly alkaline, pH 7.5, thymol-blue; abrupt wavy boundary. Lab sample # 40A08708
    C—40 to 47 centimeters (15.7 to 18.5 inches); pink (7.5YR 7/4), brown (7.5YR 5/4), moist; massive; hard, friable, slightly sticky, slightly plastic; fragments; noneffervescent; moderately alkaline, pH 8.0, thymol-blue; abrupt wavy boundary. Lab sample # 40A08709. The C Horizon described here is dicontinuous in the pit and is not typical for the Graham series.
    R—47 to 60 centimeters (18.5 to 23.6 inches); reddish gray (5YR 5/2), dark reddish brown (5YR 3/3), moist; fragments. Lab sample # 40A08710