Inferring the effects of sink strength on plant carbon balance processes from experimental measurements

Mahmud, Kashif; Medlyn, Belinda E.; Duursma, Remko A.; Campany, Courtney; De Kauwe, Martin G.

doi:https://doi.org/10.5194/bg-15-4003-2018

Articles | Volume 15, issue 13

https://doi.org/10.5194/bg-15-4003-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-15-4003-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 13

Research article

|

03 Jul 2018

Research article |

| 03 Jul 2018

Inferring the effects of sink strength on plant carbon balance processes from experimental measurements

Kashif Mahmud, Belinda E. Medlyn, Remko A. Duursma, Courtney Campany, and Martin G. De Kauwe

Supplement

https://doi.org/10.5194/bg-15-4003-2018-supplement

Data sets

Raw data files associated with the manuscript "Inferring the effects of sink strength on plant carbon balance from experimental measurements" by Mahmud et al. (2018) K. Mahmud, B. Medlyn, R. Duursma, and C. Campany https://doi.org/10.6084/m9.figshare.5125087.v13

Model code and software

R project to reproduce the figures and analyses presented in the manuscript "Inferring the effects of sink strength on plant carbon balance from experimental measurements" by Mahmud et al. (2018) K. Mahmud and B. Medlyn https://doi.org/10.6084/m9.figshare.6594344.v3

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Short summary

A major limitation of current terrestrial vegetation models is that we do not know how to model C balance processes under sink-limited conditions. To address this limitation, we applied data assimilation of a simple C balance model to a manipulative experiment in which sink limitation was induced with low rooting volume. Our analysis framework allowed us to infer that, in addition to a feedback on photosynthetic rates, the reduction in growth was effected by other C balance processes.