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-22A

	Microsite: Bog in colluvial basin, inter-hummock site. Substrate: Organic-rich basin deposit. Vegetation: Wet Carex rariflora, Carex rotundata, Eriophorum scheuchzeri scheuchzeri, Sphagnum lindbergii, sedge tundra Classification: Pergelic Cryohemist Notes: Permafrost at 48 cm. Discontinuity (and water table) at 37 cm, possibly overlie a buried peat. Horizons: IOi1 0-3 cm. Brownish black (5YR 2/2) loose organic mat composed of Sphagnum and sedge roots; est. 5% by volume; very dark reddish brown (5YR 3/2) clay component; only slightly sticky and slightly plastic due to large amount of organic; clear smooth boundary. IOi2 3-18 cm. Dark brown (7.5YR 3/3) compressed hemic peat with silty clay loam mineral component (est. 5% by volume); nonsticky, nonplastic; many fine and very fine roots; clear smooth boundary. IOe1 18-33 cm. Very dark brown (7.5YR 2.5/3) fibric peat with many yellowish sedge roots, clear smooth boundary. IOe2 33-73 cm. Very dark brown (7.5YR 2/3) more compressed fibric peat; est. 10% by volume silty clay loam; slightly sticky, slightly plastic; many fine and very fine roots; abrupt smooth boundary. IIOab(?) 37-48+ cm. Very dark brown (7.5YR 2/3) sapric peat; est. 20% by volume loam; extremely wet; moderate medium subangular blocky breaking to weak medium granular structure; few fine roots
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