The biogeochemistry of peatlands: coupling carbon and nitrogen cycles

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Although much progress has been made in defining the C cycling in peatlands, the major challenge now is to determine the role that N plays in these nutrient-limited systems. Increases in N input, e.g. through atmospheric N deposition, pose major threats to many terrestrial ecosystems and C modelling is limited by coupling of C and N. My work focuses on the Mer Bleue peatland, the site of an intensive series of measurements & experiments over the past decade. I propose to answer the following questions: