Universal temperature sensitivity of denitrification nitrogen losses in forest soils
Creators
- 1. Institute of Applied Ecology
- 2. Norwegian University of Life Sciences
- 3. State University of New York
- 4. Institute of Tibetan Plateau Research
- 5. Institute of Geographic Sciences and Natural Resources Research
- 6. Peking University
- 7. Qufu Normal University
Description
Soil nitrous oxide (N2O) and dinitrogen (N2) emissions from denitrification are crucial to the global nitrogen (N) cycle. However, the temperature sensitivities of gaseous N losses in forest soils are poorly understood, limiting our ability to predict N cycling responses to global warming. We quantified temperature sensitivities (Q10) of denitrification-derived potential N2O and N2 production ex-situ for 18 forest soils across China. N2O and N2 production rates increased exponentially with temperature, showing large variation among soils. By contrast, the Q10 values for N2O (2.1±0.5) and N2 (2.6±0.6) were surprisingly similar across soils. N2 was more sensitive to temperature than N2O, suggesting warming could promote complete denitrification. The Q10 values for denitrification (2.3±0.5) were similar to those reported for aquatic sediments. Collectively, our results indicate a universal temperature sensitivity of gaseous N losses from denitrification, which will facilitate modelling N losses in response to warming on the global scale.
Notes
Funding provided by: National Natural Science Foundation of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001809
Award Number: 41773094, 31600358
Funding provided by: K. C. Wong Education Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100012692
Award Number: GJTD-2018-07
Funding provided by: National Key Research and Development Program of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100012166
Award Number: 2016YFA0600802
Funding provided by: Research and Development Project of Scientific Instruments and Equipment of Chinese Academy of Sciences*
Crossref Funder Registry ID:
Award Number: YJKYYQ20190054
Funding provided by: Liaoning Vitalization Talents Program*
Crossref Funder Registry ID:
Award Number: XLYC1902016
Funding provided by: Youth Innovation Promotion Association CAS
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100004739
Award Number: 2021195
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Related works
- Is cited by
- 10.1038/s41558-023-01708-2 (DOI)
- Is derived from
- 10.5281/zenodo.7931039 (DOI)