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Published online 6 July 2006
Published in J Environ Qual 35:1478-1486 (2006)
DOI: 10.2134/jeq2005.0164
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
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Effects of Elevated Atmospheric Carbon Dioxide on Biomass and Carbon Accumulation in a Model Regenerating Longleaf Pine Community

G. B. Runiona,*, M. A. Davisb, S. G. Pritchardc, S. A. Priora, R. J. Mitchelld, H. A. Torberta, H. H. Rogersa and R. R. Dutee

a USDA-ARS National Soil Dynamics Laboratory, 411 South Donahue Drive, Auburn, AL 36832
b Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS 39406-5018
c Department of Biological Sciences, College of Charleston, Charleston, SC 29401
d Joseph W. Jones Ecological Research Center, Newton, GA 31770
e Department of Biological Sciences, Auburn University, Auburn University, AL 36849


Figure 1
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  		Fig. 1. Plant dry weight (g m–2) for component plant parts (needles, leaves, branches, stems, total aboveground, coarse roots, fine roots, total roots, total plant as applicable for each species), with associated mean separation statistics, for longleaf pine (A), sand post oak (B), wiregrass (C), butterfly weed (D), and rattlebox (E) when grown together for 3 yr under ambient (365 µmol mol–1) and elevated (720 µmol mol–1) concentrations of atmospheric CO2.

 

Figure 2
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  		Fig. 2. Biomass allocation (%) among plant component parts (needles, leaves, branches, stems, total aboveground, coarse roots, fine roots, total roots, total plant as applicable for each species), with associated mean separation statistics, for longleaf pine (A), sand post oak (B), wiregrass (C), butterfly weed (D), and rattlebox (E) when grown together for 3 yr under ambient (365 µmol mol–1) and elevated (720 µmol mol–1) concentrations of atmospheric CO2.

 

Figure 3
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  		Fig. 3. Root to shoot ratios, with associated mean separation statistics, for longleaf pine, sand post oak, wiregrass, butterfly weed, and rattlebox when grown together for 3 yr under ambient (365 µmol mol–1) and elevated (720 µmol mol–1) concentrations of atmospheric CO2.

 




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