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-2

	Microsite: Well developed water track, lower-midslope portion of track; soil pit is in the center of the track. Substrate: Organic-rich alluvium over clay-rich till. Vegetation: Wet Salix planifolia ssp. pulchra, Eriophorum angustifolium s.l., Drepanocladus uncinatus, low-shrub, sedge tundra Classification: Histic Pergelic Cryaquept Notes: Permafrost at 46 cm. Buried soil at 19 cm probably due to fluvial deposition from water track. Horizons: IOe 0-10 cm. Reddish black (2.5Y 2/1.5) coarse hemic peat with silty clay mineral component, est. 75% by volume; abrupt smooth boundary. IA 10-19 cm. Yellowish grey (2.5Y 4/1) organic loam; weak subangular blocky, breaking to weak fine granular; many fine and very fine roots; abrupt smooth boundary. IIOeb 19-32 cm. Black (10YR 2/2) silty clay hemic peat composed of sedge leaves and roots; moderate medium platy structure due to compressed plant material; abrupt smooth boundary. IIBAb 32-46+ cm. Yellowish grey (2.5Y 4/1) gravelly clay loam with few prominent medium irregularly shaped brown (10YR 4/6) mottles; no detectable structure due to wetness; 30-40% coarse gravel to 5 cm diameter; no roots.
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