Articles | Volume 15, issue 7
Biogeosciences, 15, 2231–2249, 2018
https://doi.org/10.5194/bg-15-2231-2018
Biogeosciences, 15, 2231–2249, 2018
https://doi.org/10.5194/bg-15-2231-2018

Research article 17 Apr 2018

Research article | 17 Apr 2018

Contribution of fine tree roots to the silicon cycle in a temperate forest ecosystem developed on three soil types

Marie-Pierre Turpault et al.

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Cited articles

Alexandre, A., Meunier, J. D., Colin, F., and Koud, J. M.: Plant impact on the biogeochemical cycle of silicon and related weathering processes, Geochim. Cosmochim. Ac., 61, 677–682, 1997. 
Alexandre, A., Bouvet, M., and Abbadie, L.: The role of savannas in the terrestrial Si cycle: a case study from Lamto, Ivory Coast, Global Planet. Change, 78, 162–169, 2011. 
Bakker, M. R., Turpault, M. P., Huet, S., and Nys, C.: Root distribution of Fagus sylvatica in a chronosequence in western France, J. Forest Res., 13, 176–184, 2008. 
Bartoli, F.: The biogeochemical cycle of silicon in two temperate forest ecosystems, Ecol. Bull., 35, 469–476, 1983. 
Bartoli, F. and Souchier, B.: Cycle et rôle du silicium d'origine végétale dans les écosystèmes forestiers tempérés, Ann. Sci. Forest., 35, 187–202, 1978. 
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Short summary
Silicon (Si) plays an important role in soil processes. If the influence of forest vegetation in the Si cycle has been widely examined, no study has investigated the specific role of fine tree roots. This study reveals that biological processes play a predominant role in the Si cycle in temperate forest ecosystems, while the geochemical processes seems to be limited. About 99 % of the Si taken up by trees each year returns to the soil via the degradation of litterfall and fine dead roots.
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