Plant Responses to Elevated Carbon Dioxide.
The interaction of carbon and nitrogen dynamics through plants is key to understanding the potential of many ecosystems to sequester carbon. Much work has been done on carbon and nitrogen dynamics yet much is still to learn, in particular how rising atmospheric carbon dioxide will influence their relationship.
I will be using data from free air carbon dioxide enrichment experiments (FACE) to inform the models and to validate them with regard to plant growth and physiology in response to a carbon dioxide enriched atmosphere.
I will be running some controlled environment experiments to test some aspects of the FACE experiments and will also be investigating plant carbon and nitrogen interactions in an attempt to guide/parameterise developing nitrogen uptake models.
The models I will be using are Sheffields own - the 'sheffield dynamic global vegetation model' (SDGVM) and the Met Office's latest land surface scheme - the 'Joint UK Land Environment Simulator' (JULES).
Prof. F. I. Woodward, University of SheffieldDr. C. Huntingford, Centre for Ecology and Hydrology, Wallingford