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-51

	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-124 Oe 4 - 9 7.5YR 2/1 0.14 **** **** **** **** 282.4 **** **** 50.1 T-125 Oa 9 - 24 10YR 2/2 0.38 36 56 8 SiL 188.0 82.1 68.2 29.6 T-126 II Bw 24 - 45 10YR 4/3 1.89 45 48 26 26 SCL 14.5 20.2 10.2 3.2 T-127 II C 45 - 53 10YR 4/3 2.15 42 76 12 12 SL 12.9 7.2 4.1 0.5 *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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