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Dynamics and fate of blue carbon in a mangrove–seagrass seascape: influence of landscape configuration and land-use change

2021Journal article Open access
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dc.contributor.authorDahl, Martin
dc.contributor.authorIsmail, Rashid O.
dc.contributor.authorArias-Ortiz, Ariane
dc.contributor.authorDeyanova, Diana
dc.contributor.authorFranco, Joao N.
dc.contributor.authorHammar, Linus
dc.contributor.authorHoamby, Arielle I.
dc.contributor.authorLinderholm, Hans W.
dc.contributor.authorLyimo, Liberatus D.
dc.contributor.authorPerry, Diana
dc.contributor.authorRasmusson, Lina M.
dc.contributor.authorRidgway, Samantha N.
dc.contributor.authorGispert, Gloria Salgado
dc.contributor.authorD’Agata, Stéphanie
dc.contributor.authorGlass, Leah
dc.contributor.authorMahafina, Jamal Angelot
dc.contributor.authorRamahery, Volanirina
dc.contributor.authorMasque, Pere
dc.contributor.authorBjörk, Mats
dc.contributor.authorGullström, Martin
dc.contributor.authorAsplund, Maria E.
dc.date.accessioned2021-08-03T14:02:56Z
dc.date.available2021-08-03T14:02:56Z
dc.date.issued2021
dc.descriptionThe study is part of the 4-year Blue Forests Project, initiated by the United Nations Environment Programme (UNEP) and partly funded by the Global Environment Facility (GEF). We thank the Swedish International development Cooperation Agency—Sida, marine bilateral programme for funding the participation of ROI and LDL. Funding was provided to PM through an Australian Research Council LIEF Project (LE170100219) and by the Generalitat de Catalunya (Grant 2017 SGR-1588). This work is contributing to the ICTA ‘‘Unit of Excellence’’ (MinECo, MDM2015-0552). Funding for MD was provided by the Bolin Centre for Climate Research. AA-O was supported by ‘‘Obra Social la Caixa’’ (LCF/BQ/ES14/10320004) and subsequently by the NOAA C&GC Postdoctoral Fellowship administered by UCAR-CPAESS (#NA18NWS4620043B). The IAEA is grateful for the support provided to its Environment Laboratories by the Government of the Principality of Monaco.
dc.description.abstractContext: Seagrass meadows act as efficient natural carbon sinks by sequestering atmospheric CO2 and through trapping of allochthonous organic material, thereby preserving organic carbon (Corg) in their sediments. Less understood is the influence of landscape configuration and transformation (land-use change) on carbon sequestration dynamics in coastal seascapes across the land–sea interface. Objectives: We explored the influence of landscape configuration and degradation of adjacent mangroves on the dynamics and fate of Corg in seagrass habitats. Methods: Through predictive modelling, we assessed sedimentary Corg content, stocks and source composition in multiple seascapes (km-wide buffer zones) dominated by different seagrass communities in northwest Madagascar. The study area encompassed seagrass meadows adjacent to intact and deforested mangroves. Results: The sedimentary Corg content was influenced by a combination of landscape metrics and inherent habitat plant- and sediment-properties. We found a strong land-to-sea gradient, likely driven by hydrodynamic forces, generating distinct patterns in sedimentary Corg levels in seagrass seascapes. There was higher Corg content and a mangrove signal in seagrass surface sediments closer to the deforested mangrove area, possibly due to an escalated export of Corg from deforested mangrove soils. Seascapes comprising large continuous seagrass meadows had higher sedimentary Corg levels in comparison to more diverse and patchy seascapes. Conclusion: Our results emphasize the benefit to consider the influence of seascape configuration and connectivity to accurately assess Corg content in coastal habitats. Understanding spatial patterns of variability and what is driving the observed patterns is useful for identifying carbon sink hotspots and develop management prioritizations.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAsplund, M.E., Dahl, M., Ismail, R.O. et al. Dynamics and fate of blue carbon in a mangrove–seagrass seascape: influence of landscape configuration and land-use change. Landscape Ecol 36, 1489–1509 (2021). https://doi.org/10.1007/s10980-021-01216-8pt_PT
dc.identifier.doi10.1007%2Fs10980-021-01216-8pt_PT
dc.identifier.issn0921-2973
dc.identifier.urihttp://hdl.handle.net/10400.8/5995
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relation.publisherversionhttps://link.springer.com/article/10.1007%2Fs10980-021-01216-8pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSeascape connectivitypt_PT
dc.subjectLand-sea interfacept_PT
dc.subjectMangrove deforestationpt_PT
dc.subjectSeagrass meadowspt_PT
dc.subjectSedimentary carbon storagept_PT
dc.titleDynamics and fate of blue carbon in a mangrove–seagrass seascape: influence of landscape configuration and land-use changept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1509pt_PT
oaire.citation.startPage1489pt_PT
oaire.citation.titleLandscape Ecologypt_PT
oaire.citation.volume36pt_PT
person.familyNameFranco
person.givenNameJoao N
person.identifier153718
person.identifier.ciencia-id7E1B-4C01-D6BC
person.identifier.orcid0000-0002-8249-5224
person.identifier.scopus-author-id36903257100
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationeb34c96c-a44e-4fe7-aa47-2dfe4aaa76d1
relation.isAuthorOfPublication.latestForDiscoveryeb34c96c-a44e-4fe7-aa47-2dfe4aaa76d1

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