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-42

	Microsite: South facing, exposed sandstone outcrops with frost scars with few depressions up to 15 cm deep. Substrate: Sandstone rubble. Vegetation: Dry Dryas octopetala octopetala, Salix phlebophylla, Cornicularia divergens, Alectoria ochroleuca, prostrate-shrub tundra Classification: Pergelic Cryumbrept Notes: Colors are for moist soil. Horizons: Oi 0-1 cm. Loose organic mat composed of lichens and moss. A 1-3 cm. Brownish black (5YR 2/1) gravelly sandy loam sapric organic; moderate fine granular structure; est. 20% fine gravel by volume; friable (moist); slightly sticky, slightly plastic (wet); many very fine roots; common fine roots; abrupt smooth boundary. Bw 3-40+ cm. Dark brown (10YR 3/4) gravelly sandy loam; moderate fine granular structure; est. 60% gravel by volume with numerous angular cobbles to 15 cm diameter; friable (moist); slightly sticky, slightly plastic (wet); silt caps on cobbles to 2 mm thick and some bridging of silt between cobbles; common very fine roots, few fine roots.
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