Articles | Volume 2, issue 4
SOIL, 2, 601–614, 2016
https://doi.org/10.5194/soil-2-601-2016
SOIL, 2, 601–614, 2016
https://doi.org/10.5194/soil-2-601-2016
Original research article
30 Nov 2016
Original research article | 30 Nov 2016

Long-term elevation of temperature affects organic N turnover and associated N2O emissions in a permanent grassland soil

Anne B. Jansen-Willems et al.

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Short summary
Legacy effects of increased temperature on both nitrogen (N) transformation rates and nitrous oxide (N2O) emissions from permanent temperate grassland soil were evaluated. A new source-partitioning model showed the importance of oxidation of organic N as a source of N2O. Gross organic (and not inorganic) N transformation rates decreased in response to the prior soil warming treatment. This was also reflected in reduced N2O emissions associated with organic N oxidation and denitrification.