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Imprint
Role of fungal denitrification from N2O fluxes in soil
Project
Project code: TI-AK-08-AK-2021-2408, WE 1904/8-2
Contract period: 01.05.2021
- 30.04.2024
Purpose of research: Experimental development
So far, the contribution of fungal denitrification to nitrous oxide production in soil has not been fully clarified. The aim of the project is to improving method and thus receiving a substantiated estimation. Microorganisms are capable of performing denitrification under anoxic soil conditions; meaning reducing nitrate or nitrite and thus the greenhouse gas nitrous oxide (N2O) and dinitrogen (N2) can be released. Even after decades of research, it has not yet been conclusively clarified how much fungi contribute to the production of N2O during denitrification in soil. The latest studies have shown that probably only a few species are capable of denitrifying (Keuschnig et al. 2020). However, the contribution to the total emissions from denitrification could be high, because fungi, unlike bacteria, cannot reduce N2O any further to N2. Because many N2O producing processes (e.g. denitrification, nitrification and codenitrification) can co-occur in soil, it is difficult to clearly determine the contribution of fungi to denitrification by N2O release from soils. Nevertheless, in order to improve modelling of N2O emissions or to develop mitigation strategies, a more precise understanding of the process is necessary. This follow-up project aims to combine different experimental approaches and thus to develop a method that can be used to quantify N2O emissions from fungal denitrification.
Section overview
Subjects
- Silviculture
- Resource management
- Climate Change
