Methane fluxes in tidal marshes of the conterminous United States

Methane (CH4) is a potent greenhouse gas (GHG) with atmospheric concentrations that have nearly tripled since pre-industrial times. Wetlands account for a large share of global CH4 emissions, yet the magnitude and factors controlling CH4 fluxes in tidal wetlands remain uncertain. We synthesized CH4...

Descripción completa

Detalles Bibliográficos
Autores: Arias-Ortiz, Ariane|||0000-0001-9408-0061, Wolfe, Jaxine, Bridgham, Scott|||0000-0003-0614-2678, Knox, Sara, Mcnicol, Gavin, Needelman, Brian a, Shahan, Julie, Stuart-haëntjens, Ellen j, Windham-myers, Lisamarie, Oikawa, Patty|||0000-0001-7852-4435, Baldocchi, Dennis|||0000-0003-3496-4919, Caplan, Joshua|||0000-0003-4624-2956, Capooci, Margaret, Czapla, Kenneth M., Derby, Robert kyle, Diefenderfer, Heida L.|||0000-0001-6153-4565, Forbrich, Inke|||0000-0002-0632-7317, Groseclose, Gina, Keller, Jason K., Kelley, Cheryl, Keshta, Amr E., Kleiner, Helena S., Krauss, Ken W., Lane, Robert R., Mack, Sarah, Moseman-valtierra, Serena, Mozdzer, Thomas j|||0000-0002-1053-0967, Mueller, Peter, Neubauer, Scott C.|||0000-0001-8948-2832, Noyce, Genevieve L.|||0000-0003-0423-6478, Schäfer, Karina V. R., Sanders-DeMott, Rebecca|||0000-0002-0709-8042, Schutte, Charles A.|||0000-0002-3907-7828, Vargas, Rodrigo|||0000-0001-6829-5333, Weston, Nathaniel B.|||0000-0002-6837-360X, Wilson, Benjamin, Megonigal, J. Patrick|||0000-0002-2018-7883, Holmquist, James R.|||0000-0003-2546-6766
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:302631
Acceso en línea:https://ddd.uab.cat/record/302631
https://dx.doi.org/urn:doi:10.1111/gcb.17462
Access Level:acceso abierto
Palabra clave:Contiguous United States
Eddy covariance
Flux chamber
Methane
Open-source database
Predictors
Synthesis
Tidal wetlands
Descripción
Sumario:Methane (CH4) is a potent greenhouse gas (GHG) with atmospheric concentrations that have nearly tripled since pre-industrial times. Wetlands account for a large share of global CH4 emissions, yet the magnitude and factors controlling CH4 fluxes in tidal wetlands remain uncertain. We synthesized CH4 flux data from 100 chamber and 9 eddy covariance (EC) sites across tidal marshes in the conterminous United States to assess controlling factors and improve predictions of CH4 emissions. This effort included creating an open-source database of chamber-based GHG fluxes (https://doi.org/10.25573/serc.14227085). Annual fluxes across chamber and EC sites averaged 26 ± 53 g CH4 m-2 year-1, with a median of 3.9 g CH4 m-2 year-1, and only 25% of sites exceeding 18 g CH4 m-2 year-1. The highest fluxes were observed at fresh-oligohaline sites with daily maximum temperature normals (MATmax) above 25.6°C. These were followed by frequently inundated low and mid-fresh-oligohaline marshes with MATmax ≤25.6°C, and mesohaline sites with MATmax.

Similares en LA Referencia