Microbial nitric oxide, nitrous oxide, and nitrous acid emissions from drylands

authored by
Thomas Behrendt, Nurit Agam, Marcus Andreas Horn

Reactive nitrogen compounds (Nr, which include NOx (i.e., NO+NO2), N2O, ammonia, and HONO) have a large impact on atmospheric chemical composition and, thus, on climate. Nitric oxide (NO) is a chemically reactive trace gas that reacts with ozone (O3) to form NO2 (Crutzen 1979). The formation of O3 depends on a sensitive relationship between NOx (NO+NO2) and volatile organic compounds (VOC) (Sillman et al. 1990). Thus, even trace levels of NOx can activate O3 production. O3 itself can enrich the troposphere and as a short-lived climate pollutant (SLCP) can affect the climate (Shoemaker et al. 2013). Nitrous oxide (N2O) is among the most important greenhouse gases, together with H2O, CO2, and CH4. N2O has a relatively long lifetime, is enriched in the troposphere, and impacts the earth’s radiative balance (Ciais et al. 2013). When N2O enters the stratosphere, it reacts with O3 to NO, thereby depleting the ozone layer (Crutzen 1979).

Institute of Microbiology
External Organisation(s)
Max Planck Institute of Biogeochemistry (MPI-BGC)
Ben-Gurion University of the Negev
Contribution to book/anthology
No. of pages
Publication date
Publication status
Peer reviewed
ASJC Scopus subject areas
Agricultural and Biological Sciences(all), Environmental Science(all), Earth and Planetary Sciences(all)
Sustainable Development Goals
SDG 13 - Climate Action
Electronic version(s)
https://doi.org/10.15488/15941 (Access: Open)
https://doi.org/10.1007/978-3-030-23269-6_13 (Access: Closed)