Journal article
Soil greenhouse gas fluxes partially reduce the net gains in carbon sequestration in mangroves of the Brazilian Amazon
Environmental research, Vol.263(2)
15/12/2024
PMID: 39366443
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Source: InCites
Abstract
There is interest in assessing the potential climate mitigation benefit of coastal wetlands based on the balance between their greenhouse gas (GHG) emissions and carbon sequestration. Here we investigated soil GHG fluxes (CO2 and CH4) on mangroves of the Brazilian Amazon coast, and across common land use impacts including shrimp farms and a pasture. We found greater methane fluxes near the Amazon River mouth (1439 to 3312 μg C m−2 h−1), which on average are equivalent to 37% of mangrove C sequestration in the region. Soil CO2 fluxes were predominant in mangrove forests to the East of the Amazon Delta. Land use change shifted mangroves from C sinks (mean sequestration of 12.2 ± 1.4 Mg CO2e ha−1 yr-1) to net GHG sources (mean loss of 8.0 ± 3.3 Mg CO2e ha−1 yr−1). Our data suggests that mangrove forests in the Amazon can aid decreasing the net annual emissions in the Brazilian forest sector in 9.7 ± 0.8 Tg CO2e yr−1 through forest conservation and avoided deforestation.
Details
- Title
- Soil greenhouse gas fluxes partially reduce the net gains in carbon sequestration in mangroves of the Brazilian Amazon
- Creators
- Angelo F. Bernardino (Author) - Universidade Federal do Espírito SantoHermano M. Queiroz (Author) - Universidade de São PauloGabriel N. Nobrega (Author) - Universidade Federal do CearáGabriel C. Coppo (Author) - Universidade Federal do Espírito SantoChristian J. Sanders (Author) - Southern Cross UniversityAntonio E.B. Silva (Author) - Universidade de São PauloJ. Boone Kauffman (Author) - Oregon State UniversityRodolfo F. Costa (Author) - Universidade de São PauloCarla F. Pacheco (Author) - Universidade Federal do Espírito SantoAndré Vassoler (Author) - Universidade Federal do Espírito SantoAraiene P. Pereira (Author) - Universidade Federal do Espírito SantoFrancisco Ruiz (Author) - Universidade de São PauloTiago O. Ferreira (Author) - Universidade de São Paulo
- Publication Details
- Environmental research, Vol.263(2)
- Publisher
- Elsevier Inc; SAN DIEGO
- Grant note
- Rolex Perpetual Planet Amazon Expedition: PFA-21-PP031 National Council for Scientific and Technology Development (CNPq): 305013/2022-0 Center for Carbon Research in Tropical Agriculture (CCARBON): 2021/10573-4
This work was supported by the National Geographic Society and Rolex Perpetual Planet Amazon Expedition (PFA-21-PP031) grant to AFB. T.O.F. was supported by the National Council for Scientific and Technology Development (CNPq, 305013/2022-0) and by the Center for Carbon Research in Tropical Agriculture (CCARBON) (2021/10573-4).
- Identifiers
- 991013225676802368
- Copyright
- © 2024 Elsevier Inc.
- Academic Unit
- Faculty of Science and Engineering; National Marine Science Centre
- Language
- English
- Resource Type
- Journal article