Abstract
The belowground component of terrestrial ecosystems is much less understood than any of the aboveground components, yet important ecosystem processes such as nutrient recycling, water storage, and long-term carbon accumulation occur largely in this compartment. For instance, belowground structures accounted for up to 83% of the total biomass in 13 Mediterranean woody communities (Hilbert and Canadell 1995), and belowground primary production was 60–80% of the total net primary production in a variety of woody systems (Coleman 1976; Ågren et al. 1980; Fogel 1985). Yet both root biomass and production are infrequently studied and technical difficulties make the measurements often inaccurate. Furthermore, plant root distribution and maximum rooting depths play important roles in overall ecosystem function, but it was not until recently that ecosystem-level and global comprehensive studies have been undertaken (Canadell et al. 1996; Jackson et al. 1996).
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Canadell, J. et al. (1999). Structure and Dynamics of the Root System. In: Rodà, F., Retana, J., Gracia, C.A., Bellot, J. (eds) Ecology of Mediterranean Evergreen Oak Forests. Ecological Studies, vol 137. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-58618-7_4
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DOI: https://doi.org/10.1007/978-3-642-58618-7_4
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