Open position 1: modelling postdoc “Amazon carbon sink”

cropped-forest_imgp1264.png

Postdoctoral fellowship in modeling of the phosphorus cycle in the
Amazon forest

We seek a motivated postdoctoral fellow to join a collaborative research effort to understand the role of nutrient limitation in explaining the observed decline of Amazonian

carbon uptake and inter-site variability. In the absence of nutrient limitation, we predict an
increase in the carbon uptake by ecosystems via biomass accumulation due to the CO 2
fertilization, as well as a drought-induced mortality risk, but this is not well captured in models.
The postdoctoral fellow will investigate how productivity and biomass turnover are affected
by the low soil P concentrations in Amazonia and if increasing nutrient limitation can explain the observed trend in Amazon carbon sink and their impact on its future evolution. He/she will make extensive use of the process-based grid-based ecosystem model ORCHIDEE (Krinner et al., 2005), which was recently extended by representations of the cycles of phosphorus and nitrogen, and their interactions with environmental conditions. Model predictions will be tested against the unique long-term observational data acquired in French Guiana over more than 100 ha of permanent forest plots  (http://paracou.cirad.fr/experimental-design/guyafor-network). This project is jointly funded by the Imbalance-P ERC-Synergy project (http://imbalancep-erc.creaf.cat/), and by the laboratory of excellence CEBA (Center for the study of Biodiversity in Amazonia; http://www.labex-ceba.fr/en/).

 

more informationlogos

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s