Imnavait Creek Permanent Vegetation Plots

Walker DA, Lederer ND, and Walker MD. 1987. Permanent vegetation plots: Site factors, soil physical and chemical properties and plant species cover. Department of Energy R4D Program, Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO.

Home // Vegetation communities and microsites // Summary of areas sampled // Environmental variables // Environmental information // Soil descriptions // Soil physical characteristics // Soil chemical characteristics // Species composition //
Appendices: Plot and soil photos // Equivalent vegetation units // Plot location map

Soil Description, Plot SW-33

	Microsite: Sandstone outcrop with 2-5% cover of rounded glacial erratics, stable ground surface, no evidence of cryoturbation. Substrate: Sandstone rubble. Vegetation: Dry Dryas octopetala octopetala, Salix phlebophylla, Hierochloe alpina, dwarf-shrub tundra Classification: Pergelic Cryumbrept Notes: Colors are for moist soil. Horizons: A 0-3 cm. Brownish black (10YR 2/3) gravelly organic loam; moderate fine granular structure; est. 20% fine gravel fragments with occasional cobbles; friable (moist); slightly sticky, slightly plastic (wet); many fine and very fine roots; clear smooth boundary. Bw1 3-15 cm. Dark brown (10YR 4/4) gravelly loam; weak medium subangular blocky structure breaking to moderate fine granular; est. 20% gravel fragments to 3 cm diameter with occasional angular cobbles to 10 cm diameter; friable (moist); slightly sticky, slightly plastic (wet); many fine and very fine roots; clear smooth boundary. Bw2 15-35 cm. Brown (10YR 4/5) cobbly loam; weak subangular blocky structure breaking to moderate fine granular; est. 75% gravel and angular cobbles up to 12 cm diameter; friable (moist); slightly sticky, slightly plastic (wet); silt caps on tops of cobbles to 1 mm thick; continuous iron (2.5YR 3/4) manganese (5YR 2/1) coats on bottoms of cobbles; common fine roots.
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