Thirty-year repeat measures of mangrove above- and below-ground biomass reveals unexpectedly high carbon sequestration

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dc.contributor.authorLamont, Ken_AU
dc.contributor.authorSaintilan, Nen_AU
dc.contributor.authorKelleway, JJen_AU
dc.contributor.authorMazumder, Den_AU
dc.contributor.authorZawadzki, Aen_AU
dc.date.accessioned2021-08-19T23:45:03Zen_AU
dc.date.available2021-08-19T23:45:03Zen_AU
dc.date.issued2019-06-13en_AU
dc.date.statistics2021-08-16en_AU
dc.descriptionAuthor’s Contribution: KL led field and laboratory analysis, and drafted the manuscript. NS further developed the manuscript and figures. JJK contributed to field and laboratory analysis and the preparation of the manuscript. DM conducted the stable isotope and elemental analysis. AZ conducted the radiometric analysis.en_AU
dc.description.abstractMangrove ecosystems store large quantities of organic carbon for long periods of time. This study explores organic carbon stock change through the first comparative study of radiometric analysis and repeat field measures over a multi-decadal period in a mangrove system. Examining one tall gallery forest of Avicennia marina, and an adjacent interior scrub mangrove of mixed Avicennia marina and Aegiceras corniculatum, radiometric analysis estimated a soil organic carbon accumulation rate of 4.3 ± 0.6 Mg C ha−1 y−1 in the tall gallery forest and 2.2 ± 0.5 Mg C ha−1 y−1 in a stunted mangrove. Repeat measures of root carbon separated by 30 years estimated an increase of 5.06 Mg C ha−1 y−1 in the tall forest and 6.63 Mg C ha−1 y−1 in the stunted forest—suggesting an underestimate of carbon accumulation by radiometric dating of 15% and 67% in the tall and stunted forest, respectively. A higher carbon stock in the interior forest was attributed to root mass increase, associated with landward mangrove encroachment. Extrapolated to the entire region of NSW we estimate that mangrove encroachment has contributed at least about 1.8 Tg C sequestration over the 70 years for which this has been observed in New South Wales, Australia. © 2019 Springer Science+Business Media, LLC, part of Springer Natureen_AU
dc.identifier.citationLamont, K., Saintilan, N., Kelleway, J. J., Mazumder, D., & Zawadzki, A. (2020). Thirty-year repeat measures of mangrove above- and below-ground biomass reveals unexpectedly high carbon sequestration. Ecosystems, 23(2), 370-382. doi:10.1007/s10021-019-00408-3en_AU
dc.identifier.issn1435-0629en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleEcosystemsen_AU
dc.identifier.pagination370-382en_AU
dc.identifier.urihttps://doi.org/10.1007/s10021-019-00408-3en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11398en_AU
dc.identifier.volume23en_AU
dc.language.isoenen_AU
dc.publisherSpringer Nature Limiteden_AU
dc.subjectMangrovesen_AU
dc.subjectEcosystemsen_AU
dc.subjectCarbonen_AU
dc.subjectRadiometric analysisen_AU
dc.subjectForestsen_AU
dc.subjectNew South Walesen_AU
dc.subjectAustraliaen_AU
dc.titleThirty-year repeat measures of mangrove above- and below-ground biomass reveals unexpectedly high carbon sequestrationen_AU
dc.typeJournal Articleen_AU
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