Streams and rivers are suffering more extreme and prolonged low flows than those naturally occurring without human intervention with potential relevant worldwide effects on the production of nitrous oxide (N2O), a greenhouse gas 300 times more potent than carbon dioxide. Here, we address the question of whether droughts and management-induced low flows increase riverine N2O emissions causing positive feedback in response to climate change. Supported by field data, we model riverine N2O emissions for decreasing mean summer flows in a forested and agricultural watershed under chemostatic and chemodynamic dissolved inorganic reactive nitrogen (DIN) concentrations. Our results demonstrate that total N2O emissions decrease with increasing low flow severity in both watersheds regardless of DIN scenario; which imparts a form of climate resilience.

Nitrous Oxide Emissions From Drying Streams and Rivers / Tonina, Daniele; Marzadri, Alessandra; Bellin, Alberto; Dee, Martha M.; Bernal, Susana; Tank, Jennifer L.. - In: GEOPHYSICAL RESEARCH LETTERS. - ISSN 1944-8007. - ELETTRONICO. - 2021:24(2021). [10.1029/2021GL095305]

Nitrous Oxide Emissions From Drying Streams and Rivers

Tonina, Daniele;Marzadri, Alessandra;Bellin, Alberto;
2021-01-01

Abstract

Streams and rivers are suffering more extreme and prolonged low flows than those naturally occurring without human intervention with potential relevant worldwide effects on the production of nitrous oxide (N2O), a greenhouse gas 300 times more potent than carbon dioxide. Here, we address the question of whether droughts and management-induced low flows increase riverine N2O emissions causing positive feedback in response to climate change. Supported by field data, we model riverine N2O emissions for decreasing mean summer flows in a forested and agricultural watershed under chemostatic and chemodynamic dissolved inorganic reactive nitrogen (DIN) concentrations. Our results demonstrate that total N2O emissions decrease with increasing low flow severity in both watersheds regardless of DIN scenario; which imparts a form of climate resilience.
24
Tonina, Daniele; Marzadri, Alessandra; Bellin, Alberto; Dee, Martha M.; Bernal, Susana; Tank, Jennifer L.
Nitrous Oxide Emissions From Drying Streams and Rivers / Tonina, Daniele; Marzadri, Alessandra; Bellin, Alberto; Dee, Martha M.; Bernal, Susana; Tank, Jennifer L.. - In: GEOPHYSICAL RESEARCH LETTERS. - ISSN 1944-8007. - ELETTRONICO. - 2021:24(2021). [10.1029/2021GL095305]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/325833
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact