How tree traits modulate tree methane fluxes: A review.

Autor: Moisan MA; Canadian Forest Service, Natural Resources Canada, Laurentian Forestry Centre, 1055 Rue du Peps, Québec, QC G1V 4C7, Canada; Département des Sciences de l'environnement, Université du Québec à Trois-Rivières, 3351 Bd des Forges, Trois-Rivières, QC G8Z 4M3, Canada; Centre de Recherche sur les Interactions Bassins Versants - Écosystèmes Aquatiques (RIVE), Université du Québec à Trois-Rivières, 3351 Bd des Forges, Trois-Rivières, QC G8Z 4M3, Canada. Electronic address: marie-ange.moisan@uqtr.ca., Lajoie G; Institut de Recherche en Biologie Végétale, Université de Montréal, 4101 Sherbrooke St E, Montréal H1X 2B2, Canada; Jardin Botanique de Montréal, 4101 Sherbrooke St E, Montréal H1X 2B2, Canada., Constant P; Institut national de la recherche scientifique, Centre Armand-Frappier Santé Biotechnologie, 531 Boul des Prairies, Laval, QC H7V 1B7, Canada., Martineau C; Canadian Forest Service, Natural Resources Canada, Laurentian Forestry Centre, 1055 Rue du Peps, Québec, QC G1V 4C7, Canada., Maire V; Département des Sciences de l'environnement, Université du Québec à Trois-Rivières, 3351 Bd des Forges, Trois-Rivières, QC G8Z 4M3, Canada; Centre de Recherche sur les Interactions Bassins Versants - Écosystèmes Aquatiques (RIVE), Université du Québec à Trois-Rivières, 3351 Bd des Forges, Trois-Rivières, QC G8Z 4M3, Canada.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2024 Aug 25; Vol. 940, pp. 173730. Date of Electronic Publication: 2024 Jun 03.
DOI: 10.1016/j.scitotenv.2024.173730
Abstrakt: Trees can play different roles in the regulation of fluxes of methane (CH 4 ), a greenhouse gas with a warming potential 83 times greater than that of carbon dioxide. Forest soils have the greatest potential for methane uptake compared to other land uses. In addition to their influence on soil CH 4 fluxes, trees can act directly as a source or sink of CH 4 , by transporting CH 4 produced in the soil and harbouring the key microorganisms involved in CH 4 production and consumption (methanogens and methanotrophs). Tree CH 4 fluxes can vary between species characterized by different traits that influence transport and modify the availability of CH 4 reaction substrates as well as the habitat for methanogens and methanotrophs. Despite their important role in modulating CH 4 fluxes from forest ecosystems, the identity and role of tree traits influencing these fluxes are poorly consolidated in the literature. The objectives of this paper are to 1) Review the functional traits of trees associated with their role in the regulation of CH 4 emissions; 2) Assess the importance of inter-specific variability in CH 4 fluxes via a global analysis of tree methane fluxes in the literature. Our review highlights that differences in CH 4 fluxes between tree species and individuals can be explained by a diversity of traits influencing CH 4 transport and microbial production of CH 4 such as wood density and secondary metabolites. We propose a functional classification for trees based on the key traits associated with a function in CH 4 emissions. We identified the fast-growing species with low wood density, species adapted to flood and species vulnerable to rot as functional groups which can be net sources of CH 4 in conditions favorable to CH 4 production. The global analysis further demonstrated the importance of taxonomy, with other factors such as land type and season in explaining variability in tree CH 4 fluxes.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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