Articles | Volume 11, issue 23
Research article
09 Dec 2014
Research article |  | 09 Dec 2014

How drought severity constrains gross primary production(GPP) and its partitioning among carbon pools in a Quercus ilex coppice?

S. Rambal, M. Lempereur, J. M. Limousin, N. K. Martin-StPaul, J. M. Ourcival, and J. Rodríguez-Calcerrada

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Revised manuscript not accepted

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Cited articles

Ackerly, D.: Functional strategies of chaparral shrubs in relation to seasonal water deficit and disturbance, Ecol. Monogr., 74, 25–44, 2004.
Allard, V., Ourcival, J. M., Rambal, S., Joffre, R., and Rocheteau, A.: Seasonal and annual variation of carbon exchange in an evergreen Mediterranean forest in southern France, Glob. Change Biol., 14, 714–725, 2008.
Arneth, A., Kelliher, F., McSeveny, T., and Byers, J.: Net ecosystem productivity, net primary productivity and ecosystem carbon sequestration in a Pinus radiata plantation subject to soil water deficit, Tree Physiol., 18, 785–793, 1998.
Atkin, O. K. and Macherel, D.: The crucial role of plant mitochondria in orchestrating drought tolerance, Ann. Botany, 103, 581–597, 2009.
Short summary
The partitioning of carbon input in biomass has a key role in the sink function of forests. We analyzed how carbon is allocated in relation to drought in an evergreen Mediterranean forest. Carbon exchanges were drastically affected by drought. Partitioning was impacted with a hierarchy of responses going from the most affected, the stem, to the least one, the leaves. 40% of carbon input is allocated in biomass and this proportion tended to decrease with drought due to acclimation of respiration.
Final-revised paper