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 Physical Properties, Plot SWT-75

	Sample No. Horizon Depth Wet color Bulk density % Gravel % % % Texture % H20 % (cm) (g/cc) >2 mm Sand Silt Clay 1 atm 1/3 atm 15 atm OM (1/240) BAR T-177 Oi 0 - 5 0.02 **** **** **** **** 901.7 172.9 137 89.3 T-178 Oe 5 - 10 7.5YR 2.5/4 0.17 **** **** **** **** 389.3 246.8 178.9 19.2 T-179 Oa2 13 - 18 5YR 3/4 0.18 **** **** **** **** 372.2 **** **** 58 T-180 Bhs 18 - 31 10YR 3.5/3 0.38 0 40 45 15 L 178.8 **** **** 38 *1 = routine analysis + hydrometer particle size + gravel (1 fraction) + CaC03 equiv. + Ca, Mg, Na, K + CEC *1a = same as (1) but with water: field capacity, available, hygroscopic **2 = same as (1) but without gravel fraction **2a = same as (1) with water: field capacity, available, hygroscopic ***3 = routine analysis + CEC **** = Insufficient sample # = Bray P on samples with pH<6.0 ## = Not analyzed
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