Nitrogen Cycling in the Anthropocene: Microbiological Processes, Land-atmosphere- Interactions, and advances in quantification and process-based modelling of Denitrification in soils
Convener:
Sami Ullah
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Co-conveners:
Reinhard Well,
Balázs Grosz,
Peter Dörsch,
Tuula Larmola,
Lena Rohe,
Dianming Wu
Orals
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Tue, 25 Apr, 14:00–15:45 (CEST) Room 1.15/16
Posters on site
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Attendance Tue, 25 Apr, 16:15–18:00 (CEST) Hall A
Soil denitrification as a key process of terrestrial N cycle is poorly quantified despite a long research history, but progress is expected from focused effort in recent decades to improve techniques for measuring and modelling N2 and N2O fluxes. Yet we still lack a comprehensive, quantitative understanding of denitrification rates in soils due to methodical limitation, its complex controls and the spatio-temporal variability on a field or landscape scale. Due to the lack of suitable data-sets, process-based denitrification models have rarely been validated and results of their application on site and regional scales are highly uncertain.
This session seeks to improve our understanding of a) how intensification of reactive N use, land management and climate change affects the pools and fluxes of nitrogen in terrestrial and aquatic ecosystems, b) how reactive N enrichment of land and water will affect the future carbon sink of natural ecosystems as well as atmospheric exchanges of reactive (NO, N2O, NH3, HONO, NO2 and non-reactive N (N2) gases with implications for global warming, climate change and air quality, and c) how quantification and prediction of soil denitrification can be improved.
We welcome contributions covering a wide range of experimental and modelling studies, which covers microbes-mediated and physico-chemical transformations and transport of nitrogen across the land-water-air continuum in natural ecosystems from local to regional and global scales. We also invite contributions on methodical advances in measuring denitrification in soils addressing N2 and N2O fluxes with a focus on controlling factors; reports on novel methods; process-based modelling of denitrification at various scales; linking denitrification rates to parameters of the denitrifying community.
14:00–14:05
5-minute convener introduction
14:05–14:15
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EGU23-4780
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solicited
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Highlight
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Virtual presentation
14:15–14:25
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EGU23-2124
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On-site presentation
14:25–14:35
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EGU23-4849
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ECS
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Highlight
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On-site presentation
14:45–14:55
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EGU23-6382
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ECS
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On-site presentation
14:55–15:05
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EGU23-13402
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ECS
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Highlight
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On-site presentation
15:05–15:15
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EGU23-6652
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ECS
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Virtual presentation
15:15–15:25
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EGU23-8168
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ECS
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On-site presentation
15:25–15:35
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EGU23-15598
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Highlight
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On-site presentation
15:35–15:45
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EGU23-12416
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ECS
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On-site presentation
A.225
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EGU23-3413
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Highlight
A.229
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EGU23-5615
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Highlight
A.235
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EGU23-14831
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ECS
A.236
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EGU23-14663
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ECS