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-61

	Classification: Pergelic Cryoboroll, fine-loamy, mixed. Location: North side of Toolik Lake, near Limno Bay, in willow patch. 68°38' N, 149°36' W. Physiographic position: Midslope, 40 percent south-facing slope. Topography: Featureless ground. Microrelief Height: 25 cm. Drainage: Somewhat poorly drained. Vegetation: Moist Salix glauca, Betula nana s.l., Festuca altaica, low-shrub tundra Parent material: Itkillik II glacial till. Sampled by: D.A. Walker and C. Westberg, August 14, 1989. Remarks: 1-m shrubs. Rocky terrain, probably deep active layer. Weather: Raining. Horizons: Colors are for the moist soil. Oi 0-2 cm. Layer of moss Rhytidium rugosum and litter; smooth abrupt boundary. Oa 2-8 cm. Very dark brown (7.5YR 2/3) organic silty loam; weak fine granular structure; smooth, nonsticky, nonplastic (wet); wavy clear boundary. Oa2 8-16 cm. Very dark brown (7.5YR 2/2) sandy loam; weak medium subangular blocky, breaking to a weak fine granular structure; smooth, slightly sticky, slightly plastic (wet); pH = 6.4; many fine roots; abrupt smooth boundary. (Sample T-152). A2 16-40+ cm. Dark brown (10YR 3/3) gravelly sandy loam; weak medium subangular blocky, breaking to a weak fine granular structure; gritty, slightly sticky, slightly plastic (wet); pH = 7.1; est. 20 percent fine gravel less than 2 cm diameter. (Sample T-153).
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