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Elevated temperature and nutrients lead to increased N2O emissions from salt marsh soils from cold and warm climates

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Sophie A. Comer-Warner, Sami Ullah, Arunabha Dey, Camille L Stagg, Tracy Elsey-Quirk, Christopher M. Swarzenski, Fotis Sgouridis, Stefan Krause, and Gail L. Chmura, 2023-12-14, Elevated temperature and nutrients lead to increased N2O emissions from salt marsh soils from cold and warm climates: Biogeochemistry.

Summary

Abstract (from Springer): Salt marshes can attenuate nutrient pollution and store large amounts of ‘blue carbon’ in their soils, however, the value of sequestered carbon may be partially offset by nitrous oxide (N2O) emissions. Global climate and land use changes result in higher temperatures and inputs of reactive nitrogen (Nr) into coastal zones. Here, we investigated the combined effects of elevated temperature (ambient + 5℃) and Nr (double ambient concentrations) on nitrogen processing in marsh soils from two climatic regions (Quebec, Canada and Louisiana, U.S.) with two vegetation types, Sporobolus alterniflorus (= Spartina alterniflora) and Sporobolus pumilus (= Spartina patens), using 24-h laboratory incubation experiments. [...]

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  • National and Regional Climate Adaptation Science Centers
  • South Central CASC

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citationTypeJournal Article
journalBiogeochemistry
parts
typeDOI
value10.1007/s10533-023-01104-0

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