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Title: Effects of elevated concentrations of atmospheric CO2 and tropospheric O3 on decomposition of fine roots
Author: Chapman, Jack A.; King, John S.; Pregitzer, Kurt S.; Zak, Donald R.;
Source: Tree Physiology. 25: 1501-1510.
Publication Series: Scientific Journal (JRNL)
Rising atmospheric carbon dioxide (CO2) concentration ([CO2]) could alter terrestrial carbon (C) cycling by affecting plant growth, litter chemistry and decomposition. How the concurrent increase in tropospheric ozone (O3) concentration ([O3]) will interact with rising atmospheric [CO2] to affect C cycling is unknown.Amajor component of carbon cycling in forests is fine root production, mortality and decomposition. To better understand the effects of elevated [CO2] and [O3] on the dynamics of fine root C, we conducted a combined field and laboratory incubation experiment to monitor decomposition dynamics and changes in fine root litter chemistry.
Keywords: carbon cycle, chemistry, dissolved organic carbon, FACE, field incubation, laboratory incubation, mass loss, microbial respiration
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Chapman, Jack A.; King, John S.; Pregitzer, Kurt S.; Zak, Donald R. 2005. Effects of elevated concentrations of atmospheric CO2 and tropospheric O3 on decomposition of fine roots.
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