Monthly Archives: January 2015

Hungate challenge: How much CO2 can be taken up by the terrestrial biosphere? By Shun Hasegawa

Hungate et al. (2003) raised the importance of nutrient feedbacks on carbon (C) uptake by terrestrial ecosystems to determine associated additional C storage under future predicted carbon dioxide (CO2) concentrations in the atmosphere. Nevertheless, there is only little research investigating … Continue reading

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The Big N Question: What controls rates of nitrogen fixation and losses? By Beni Stocker

To address this question, we have to start with the notion that, on the long term, N losses from ecosystems via gaseous and leaching pathways have to be compensated by N inputs. Natural, that is non-human affected, N inputs are … Continue reading

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The Global ecosystem Production in Space and Time (GePiSaT) Model of the Terrestrial Biosphere. By Tyler Davis

The motivation for this work is to create a simple diagnostic model of gross primary production (GPP). The purpose of this is meant to contrast the complex process-based models that are currently being developed and used in earth system modelling … Continue reading

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