Effects of elevated CO2 and O3 on silver birch rhizosphere and leaf litter decomposition
2002
Kasurinen, A. (University of Kuopio, Kuopio (Finland). Department of Ecology and Environmental Science) | Vapaavuori, E. | Holopainen, J. K. | Holopainen, T.
There is still limited amount of information about the long-term and interactive effects of increased CO2 and O3 levels on larger forest trees growing under natural or semi-natural conditions. Elevated CO2 and O3 might affect the quality and quantity of leaf litter produced and thus change litter decomposition rates and nutrient cycling in the forest ecosystems severely. In this long-term field experiment we studied the effects of realistically increased CO2 and O3 levels on fine root and mycorrhiza growth in ozone-tolerant and ozone-sensitive silver birch clones by root ingrowth core method. We measured rhizosphere soil CO2 efflux plus assessed the total fungal biomass of fine roots and soil by ergosterol analysis
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