Interactive Effects of O3 and CO2: Implications for Terrestrial Ecosystems

摘要

The atmosphere supplies plants with CO2 for carbon fixation, producing carbon-containing compounds for structure and function of cells; and O2 to oxidize these carbon compounds, producing cellular energy. To date, effects of O3 and CO2 usually have been defined narrowly in terms of plant shoot responses (leaf biochemistry, physiology, crop yield or tree biomass). Thus, the objectives of this review are: (1) to review the literature concerning interactive effects of O3 and CO2 on vegetation; and, (2) carry out this evaluation in the context of terrestrial ecosystem processes, i.e., carbon and nitrogen cycling.