Soil Climate Site - Tokositna, Alaska
 

SNOTEL Site: Tokositna Location: 62° 37’ 44’’ N, 150° 46’ 27’’ W Elevation: 460 meters Landform: fan terrace Slope: 4 percent Aspect: northeast Vegetation: sitka alder/ladyfern-bluejoint grass scrub

Domain:  Soil temperature and moisture data are representative of well drained soils with sub-alpine scrub plant communities on mountain slopes and fan terraces. Soils are formed in a silty mantle of loess and volcanic ash over variable materials including loamy or gravelly alluvium, gravelly colluvium or gravelly drift in the Cook Inlet Lowlands Major Land Resource Area (illustrated in red).

US Soil Taxonomy:  sandy-skeletal, mixed, Spodic Dystrocryepts
Parent Material: volcanic ash and loess over loamy alluvium underlain by sandy and gravelly alluvium
General Soil Profile Description:
  Oi-0 to 5 cm; dark reddish brown; slightly decomposed plant material; pH 4.2
  AE-5 to 8 cm; dark brown; silt loam; pH 3.8
  Bhs-8 to 15 cm; dark reddish brown; silty loam; pH 4.0
  2BC1-15 to 31 cm; brown; stratified sand through silt; pH 4.4
  3BC2-31-58 cm; brown; extremely cobbly loamy sand; pH 4.6
  3C-58 to 152 cm; very dark grayish brown; extremely gravelly coarse sand; pH 4.8

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