Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/258407
Share/Export:
logo share SHARE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

Current and future carbon stocks in coastal wetlands within the Great Barrier Reef catchments

AuthorsDuarte de Paula Costa, Micheli; Lovelock, Catherine E.; Waltham, Nathan J.; Young, Mary; Adame, María Fernanda; Bryant, Catherine V.; Butler, Don; Green, David; Rasheed, Michael A.; Salinas, Cristian; Serrano, Oscar CSIC ORCID; York, Paul H.; Whitt, Ashley A.; Macreadie, Peter I.
KeywordsSoil carbon stocks
tidal marshes
blue carbon
climate change
coastal wetlands
mangroves
seagrass meadows
Issue Date2022
PublisherWiley-Blackwell
CitationGlobal Change Biology 27 : 3257-3271 (2021)
AbstractAustralia's Great Barrier Reef (GBR) catchments include some of the world's most intact coastal wetlands comprising diverse mangrove, seagrass and tidal marsh eco systems. Although these ecosystems are highly efficient at storing carbon in marine sediments, their soil organic carbon (SOC) stocks and the potential changes resulting from climate impacts, including sea level rise are not well understood. For the first time, we estimated SOC stocks and their drivers within the range of coastal wet lands of GBR catchments using boosted regression trees (i.e. a machine learning ap proach and ensemble method for modelling the relationship between response and explanatory variables) and identified the potential changes in future stocks due to sea level rise. We found levels of SOC stocks of mangrove and seagrass meadows have different drivers, with climatic variables such as temperature, rainfall and solar radiation, showing significant contributions in accounting for variation in SOC stocks in mangroves. In contrast, soil type accounted for most of the variability in seagrass meadows. Total SOC stock in the GBR catchments, including mangroves, seagrass meadows and tidal marshes, is approximately 137 Tg C, which represents 9%–13% of Australia's total SOC stock while encompassing only 4%–6% of the total extent of Australian coastal wetlands. In a global context, this could represent 0.5%–1.4% of global SOC stock. Our study suggests that landward migration due to projected sea level rise has the potential to enhance carbon accumulation with total carbon gains between 0.16 and 0.46 Tg C and provides an opportunity for future restoration to enhance blue carbon.
DescriptionEste artículo contiene 15 páginas, 6 figuras, 1 tabla.
Publisher version (URL)https://doi.org/10.1111/gcb.15642
URIhttp://hdl.handle.net/10261/258407
ISSN1354-1013
1365-2486
Appears in Collections:(CEAB) Artículos

Show full item record
Review this work

Page view(s)

17
checked on Jul 7, 2022

Google ScholarTM

Check


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.