Effects of Growth Environment on Aboveground Carbon Budgets in Ponderosa Pine
Carey, Eileen Veronica
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https://hdl.handle.net/2142/87061
Description
Title
Effects of Growth Environment on Aboveground Carbon Budgets in Ponderosa Pine
Author(s)
Carey, Eileen Veronica
Issue Date
1997
Doctoral Committee Chair(s)
DeLucia, Evan H.
Department of Study
Plant Biology
Discipline
Plant Biology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Biology, Plant Physiology
Language
eng
Abstract
In a separate study I measured ponderosa pine saplings grown in CO$\sb2$-enriched atmospheres. Trees grown under elevated CO$\sb2$ concentrations (ambient + 350 ppm) had higher temperature coefficients of respiration than trees grown under current ambient concentrations (approx. 350 ppm) and this translated into greater time-integrated respiration in high CO$\sb2$-grown trees. Increases in stem R$\rm\sb{m}$ suggested by my data, in response to increased temperature, climate-induced changes in biomass allocation, and increased atmospheric CO$\sb2$ concentration, could have a significant effect on future forest carbon flux.
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