N2O hotspots
Limiting N2O emission from hot spots in Danish agricultural soils – linking crop roots and nitrate dynamics to develop new strategies to mitigate trace gasses
Nitrogen turnover and the resulting N2O emissions represent a major component of greenhouse gas emission from agricultural soils in Denmark. The Danish glacial landscape with depression landforms of various sizes exhibits hot spots of denitrification, that are flooded 1-3 months a year.
To manage future N2O emissions effectively, it is crucial to understand the contribution of hot spot emissions at subfield scale, to apply efficient field and farm scale mitigation strategies.
Hot spots for N2O emissions are currently inadequately represented in the national trace gas budget. This project will help to optimize the national Danish N2O budgets, and help to optimize management strategies for farmers.
In the current debate on which fields should be taken out of production to reduce N2O emissions from agricultural land, this project will investigate the option to include depressions within fields and convert these to year-round vegetated micro-habitats to ensure reduced N2O emissions and further improve soil C sequestration.
Klaus Butterbach Bahl and Michael Dannemann
Divison - Biogeochemical Cycles, Karlsruhe Institute of Technology, Germany
Ingrid Koegel-Knabner
Chair of Soil Science, Technical University of Munich, Germany
Ofer Dahan
The Zuckerberg Institute for Water Research (ZIWR), Ben-Gurion University of the Negev, Israel
Researchers
| Name | Title | Phone | |
|---|---|---|---|
| Search in Name | Search in Title | Search in Phone | |
| Bo Elberling | Professor | +4535322520 | |
| Carsten W. Müller | Associate Professor | +4535334125 | |
| Kristian Thorup-Kristensen | Professor | +4535332216 | |
| Per Lennart Ambus | Professor | +4535336626 | |
| Yujia Liu | PhD Fellow |
Funded by:
N2O hotspots has received a five year funding from Independent Research Fund Denmark
Project: Limiting N2O emission from hot spots in Danish agricultural soils
Period: 2021 to 2026