Denitrifying pathways dominate nitrous oxide emissions from managed grassland during drought and rewetting.
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ABSTRACT:
SUBMITTER: Harris E
PROVIDER: S-EPMC7864578 | biostudies-literature | 2021 Feb
REPOSITORIES: biostudies-literature
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Denitrifying pathways dominate nitrous oxide emissions from managed grassland during drought and rewetting.
Harris E E Diaz-Pines E E Stoll E E Schloter M M Schulz S S Duffner C C Li K K Moore K L KL Ingrisch J J Reinthaler D D Zechmeister-Boltenstern S S Glatzel S S Brüggemann N N Bahn M M
Science advances 20210205 6
Nitrous oxide is a powerful greenhouse gas whose atmospheric growth rate has accelerated over the past decade. Most anthropogenic N<sub>2</sub>O emissions result from soil N fertilization, which is converted to N<sub>2</sub>O via oxic nitrification and anoxic denitrification pathways. Drought-affected soils are expected to be well oxygenated; however, using high-resolution isotopic measurements, we found that denitrifying pathways dominated N<sub>2</sub>O emissions during a severe drought applie ...[more]
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