Overview

The global terrestrial biosphere, i.e. the vegetation and soils, strongly reacts to variations in atmospheric conditions but also influences the atmosphere via exchange of matter and energy (e.g. trace gases, latent and sensible heat). These interactions occur on time-scales that range from seconds to millennia, and ascend from the molecular to the global spatial scale. They are mediated by the action of organisms which shape important biogeochemical and biogeophysical processes in their ecosystems, which in turn are forming landscapes, regions, and biomes. Hence we study the nature and the role of these interactions between the biosphere and the atmosphere, using a modelling approach, which integrates observations from organisms to global scale. This research should ultimately help understanding how the biosphere is reacting to and is exerting feedbacks on ongoing environmental change (e.g. changing water cycle, global warming, increasing atmospheric CO2 levels, and nitrogen deposition).

News and activities


April 17th to 22th, 2016, EGU sessions (co-)chaired by BGI-members at European Geosciences Union General Assembly meeting in Vienna.


April 4th, 2016, Interview with Markus Reichstein about climate change and extreme events.


March 1st, 2016, Jan Engel, joined the Terrestrial Biosphere Modelling Group.
Welcome!


February 24th to 26th 2016, Mirco Migliavacca at the OPTIMISE COST Action meeting in Dubrovnik

Latest papers

El-Madany, T.S., Walk, J.B., Deventer, M.J., Degefie, D.T., Chang, S.C., Juang, J.-Y, Griessbaum, F., Klemm, O. (2016) Canopy-atmosphere interactions under foggy condition—Size-resolved fog droplet fluxes and their implications. J. Geophys. Res. Biogeosci. 121 (Early View) DOI: 10.1002/2015JG003221.

Meyerholt, J., Zaehle, S., and Smith, M. J.: Variability of projected terrestrial biosphere responses to elevated levels of atmospheric CO2 due to uncertainty in biological nitrogen fixation, Biogeosciences, 13, 1491-1518, doi:10.5194/bg-13-1491-2016, 2016.

Caldararu, S., Purves, D. W., Smith, M. J. (2016). The effect of using the plant functional type paradigm on a data-constrained global phenology model. Biogeosciences, 13(4), 925-941. doi:10.5194/bg-13-925-2016.

Forkel, M., Carvalhais, C., Rödenbeck, C., Keeling, R., Heimann, M., Thonick, K., Zaehle, S., Reichstein, M. (2016) Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems. Science, Vol.351 (6274), 696-699 DOI: 10.1126/science.aac4971

Meyerholt, J., Zaehle, S., and Smith, M. J.: Variability of projected terrestrial biosphere responses to elevated levels of atmospheric CO2 due to uncertainty in biological nitrogen fixation, Biogeosciences, 13, 1491-1518, doi:10.5194/bg-13-1491-2016, 2016.