Soil Climate Site - Port Graham, Alaska
 

SNOTEL Site: Port Graham Location: 59° 21’ 03’’ N, 150° 50’ 53’’ W Elevation: 75 meters Landform: mountain Position: back slope Slope: 36 percent Aspect: west Vegetation: Sitka spruce/devil's club forest

Domain:  Soil temperature and moisture data are representative of forest communities on well drained upland locations. Soils are formed in loess and volcanic ash over drift, colluvium, or bedrock in the Alexander Archipelago-Gulf of Alaska Major Land Resource Area (illustrated in red).

US Soil Taxonomy:  medial,  amorphic, superactive, Lithic Humicryods.  Portgraham Series.
Parent Material: loess and volcanic ash over bedrock
General Soil Profile Description:
  Oe-0 to 9 cm; dark reddish brown; moderately decomposed plant material; pH 4.3
  A/E-9 to 24 cm; very dark brown and brown loam;  pH 5.2
  Bhs-24 to 58 cm; reddish black; very fine sandy loam;  pH 5.1
  BC-37 to 51 cm; dark yellowish brown; silt loam; pH 5.7
  Bhs/Bs-58 to 65 cm; very dusky red and dark reddish brown; fine sandy loam; pH 5.4
  2R-Consolidated dark-gray carbonaceous limestone

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