Anthropogenic disturbance of the nitrogen (N) cycle has more than doubled the amount of reactive N circulating in the biosphere. Exchange of nitrogen gases between land and atmosphere are strongly affecting Earth’s atmospheric composition, air quality, climate change and human health. This session seeks to improve our understanding on how global changes impact N biogeochemistry in terrestrial and aquatic ecosystems and what atmospheric interactions will be most important in influencing the climate. We seek to link microbiological nitrogen processes and surface nitrogen gases flux with ecosystem dynamics, air quality and atmospheric chemistry. We will cover fluxes of various nitrogen gases and the underlying transformation processes in soils and sediments, e.g., fixing of atmospheric dinitrogen, release of nitrous acid (HONO), nitric oxide (NO), nitrogen dioxide (NO2), nitrous oxide (N2O) and ammonia (NH3) as well as interactions with ozone, volatile organic compounds, free radicals as well as aerosols in the atmosphere, and further impact on air quality. Further, the interactions of N cycling with other element cycles (e.g., carbon, phosphorus) in ecosystems and terrestrial-aquatic linkages, and feedbacks to biodiversity loss and water pollution will be explored. We welcome a wide range of studies including methods development and application of new devices, observational, experimental, and modeling approaches.

Convener: Dianming Wu | Co-conveners: Tuula Larmola, Ming Chang, Yuepeng Pan, Sari Juutinen, Sami Ullah
| Mon, 08 Apr, 08:30–12:30
Room 2.25
| Attendance Mon, 08 Apr, 16:15–18:00
Hall A

Attendance time: Monday, 8 April 2019, 16:15–18:00 | Hall A

Chairperson: Ming Chang, Sami Ullah
A.309 |
Laurent Bigaignon, Claire Delon, Tiphaine Tallec, Fabien Solmon, Corinne Galy-Lacaux, Dominique Serça, and Frédéric Guérin
A.314 |
Ke Tang, Min Qin, Jun Duan, Fanhao Meng, Shuaixi Liang, Wu Fang, and Pinhua Xie
A.315 |
Marja Maljanen and Emilia Marttila
A.316 |
Yuexin he, Yuepeng Pan, Guozhong Zhang, and Yuesi Wang
A.317 |
Quantifying atmospheric nitrogen deposition across China during 2011-2017
Wen Zhang, Liu Xuejun, Li Qi, Xu Wen, and Tang Aohan
A.318 |
Mingrui Ma, Ming Chang, and Xuemei Wang
A.320 |
Yuepeng Pan, Yunting Fang, Greg Michalski, and Yuesi Wang
A.321 |
Global spatial and Temporal variation of Nitrate over the period of (2007 – 2015)
Nour Daoud, Mohammed Magooda, and Muhammed Eltahan
A.323 |
Pierre Regnier, Taylor Maavara, Goulven Laruelle, and Ronny Lauerwald
A.326 |
Yingxue Xuan, Changyuan Tang, and Yingjie Cao
A.327 |
Stephen J. Harris, Dioni I. Cendón, Mark A. Peterson, Hankin I. Stuart, Jessica Watson, Shuang Xiao, and Bryce F. Kelly
A.329 |
Anna Bortolazzi, Martino Gambacorti-Passerini, Maurizio Ventura, Flavio Fornasier, Panzacchi Pietro, Giammarchi Francesco, and Tonon Giustino
A.330 |
Fotis Sgouridis, Suparat Cotchim, Ernesto Saiz, Panote Thavarungkal, Warakorn Limbut, Alex Radu, and Sami Ullah
A.331 |
Angeliki Kourmouli, Liz Hamilton, Rebecca Bartlett, Iain Hartley, and Zongbo Shi
A.332 |
Effect of fertilizer application and soil moisture content on greenhouse gas emissions from dry agricultural uplands of central Kenya
Peter Mosongo, David Pelster, Li Xiaoxin, Stephen Aluoch, Wang Yuying, Chen Suying, David Mburu, and Chunsheng Hu
A.333 |
Ping Han, Dongyao Sun, Mengyue Zhao, Lijun Hou, and Min Liu
A.334 |
Yingjie Wu, Chongjuan Chen, Jiazhu Li, and Guoan Wang
A.335 |
Tuula Larmola, Heikki Kiheri, Sylwia Adamczyk, Anne Palomäki, Jill L. Bubier, Netty van Dijk, Nancy Dise, Hannu Fritze, Erik A. Hobbie, Raija Laiho, Tim R. Moore, Mats Nilsson, Taina Pennanen, and Sari Timonen