Dear Colleagues, At the next EGU General Assembly, Vienna 7-12 April 2019, we will organize again a special session on *Nitrogen cycling* which we hope will be of interest to you. The session is entitled “Nitrogen-transformation processes in terrestrial and aquatic ecosystems under global change”. Last year we had a day of 20 interesting talks and posters covering different aspects of Nitrogen cycling and are looking forward to continuing this year. Please feel free to distribute this message to potentially interested colleagues and co-workers. Abstract deadline is 10 January 2019 (1pm Central European time). Sorry for any cross-posting. We are looking forward to meeting you in Vienna.
Best Regards, Sari Juutinen, University of Helsinki Sami Ullah, University of Birmingham Tuula Larmola, Natural Resources Institute Finland *BG1.6. Nitrogen-transformation processes in terrestrial and aquatic ecosystems under global change* Conveners:Tuula Larmola, Sari Juutinen , Sami Ullah Abstract submission <https://meetingorganizer.copernicus.org/EGU2019/abstractsubmission/32155> Anthropogenic disturbance of the nitrogen (N) cycle has more than doubled the amount of reactive N circulating in the biosphere. Global change impacts the N cycle via increased levels of N deposition, land use and changes in global or regional climate. This session seeks to improve our understanding on how global changes impact N biogeochemistry in terrestrial and aquatic ecosystems and what feedbacks from N cycling will be most important in influencing the climate. We invite presentations on all aspects of ecosystem N cycling, on past and present ecosystem dynamics and functioning, interactions with other element cycles (e.g., carbon, phosphorus), terrestrial-aquatic linkages, and future projections and feedbacks to global change (increased greenhouse gas emissions, biodiversity loss, air and water pollution). We welcome contributions using observational, experimental, and modeling approaches, from local to global scales and varying in time-horizons.
