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-14

	Classification: Pergelic Cryohemist, euic. Location: South side of Toolik Lake, directly west of inlet bay. 68°37' N, 149°36' W. Physiographic position: Colluvial basin. Topography: Strangmoor and aligned hummocks in fen. Microrelief Height: 0-5 cm. Drainage: Poorly drained. Vegetation: Moist Tricophorum caespitosum, Tomentypnum nitens, sedge tundra Parent material: Colluvial deposit. Sampled by: D.A. Walker and C. Westberg, August 4, 1989. Remarks: Frozen at 55 cm. Profile described from aligned hummock element. Weather: clear, warm, windy. Horizons: Colors are for the moist soil. Oi 0-6 cm. Very dark brown (7.5YR 2/2.5) fibric material; after rubbing 50 percent recognizable plant fibers; very wet; composed mainly of coarse Trichophorum caespitosum roots; many fine and very fine roots; pH = 6.8; clear, smooth boundary. (Sample T-032). Oe 6-30 cm. Dark brown (7.5YR 3/3.5) hemic material; after rubbing 10 percent recognizable plant fibers; very wet; composed of fine sedge roots; pH = 5.4; abrupt, smooth boundary. (Sameple T-033). Oa 30-40+ cm. Very dark brown (10YR 3/3) sapric material; after rubbing est. 10-15 percent recognizable plant fibers, mostly roots; saturated; pH = 4.8. (Sample T-034).
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