Toolik Lake Permanent Vegetation Plots

Walker D.A. and Barry N. 1991. Toolik Lake permanent vegetation plots: site factors, soil physical and chemical properties, plant species cover, photographs, and soil descriptions. Data Report 48, Department of Energy R4D Program, Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO.

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Soil Description, Plot SWT-37

	Classification: Pergelic Cryohemist, euic. Location: Northwest side of Toolik Lake, between S-7 and Toolik Lake, in marsh, surrounding small lake. Base of toposequence SWT-37 to SWT-47. 68°38' N, 149°38' W. Physiographic position: Colluvial basin (marsh along small lake margin). Topography: Strangmoor and aligned hummocks. Interhummock element. Microrelief Height: 15 cm. Drainage: Very poorly drained. Vegetation: Wet Carex chordorrhiza, Scorpidium scorpioides, Carex aquatilis s.l., sedge tundra Parent material: Colluvial deposit. Sampled by: D.A. Walker and C. Westberg, August 8, 1989. Remarks: Water at surface. Thaw depth is > 1 m. Weather: Clear, breezy. Horizons: Colors are for the wet soil. Oi1 0-2 cm. Dead sedge leaves and marl; abrupt, smooth boundary. Oi2 2-32 cm. Dark brown after rubbing (7.5YR 3/2) fibric material with est. < 2 percent fine sand and silt; tight mat of sedge roots; saturated; pH = 5.6; abrupt smooth boundary. (Sample T-083). Oa 32-40+ cm. Very dark gray (7.5YR 3.5/1) gravelly loamy sapric material; saturated; gritty, slightly sticky, slightly plastic (wet); pH = 6.1; est. 20 percent fine gravel to 3 cm diameter. (Sample T-084).
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