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  • Future carbon emissions from global mangrove forest loss

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    Adame465174-Published.pdf (1.312Mb)
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    Version of Record (VoR)
    Author(s)
    Adame, Maria F
    Connolly, Rod M
    Turschwell, Mischa P
    Lovelock, Catherine E
    Fatoyinbo, Temilola
    Lagomasino, David
    Goldberg, Liza A
    Holdorf, Jordan
    Friess, Daniel A
    Sasmito, Sigit D
    Sanderman, Jonathan
    Sievers, Michael
    Buelow, Christina
    Kauffman, J Boone
    Bryan-Brown, Dale
    Brown, Christopher J
    Griffith University Author(s)
    Turschwell, Mischa P.
    Brown, Chris J.
    Adame Vivanco, Fernanda
    Buelow, Christina A.
    Connolly, Rod M.
    Sievers, Michael K.
    Bryan-Brown, Dale N.
    Year published
    2021
    Metadata
    Show full item record
    Abstract
    Mangroves have among the highest carbon densities of any tropical forest. These ‘blue carbon’ ecosystems can store large amounts of carbon for long periods, and their protection reduces greenhouse gas emissions and supports climate change mitigation. Incorporating mangroves into Nationally Determined Contributions to the Paris Agreement and their valuation on carbon markets requires predicting how the management of different land‐uses can prevent future greenhouse gas emissions and increase CO2 sequestration. We integrated comprehensive global datasets for carbon stocks, mangrove distribution, deforestation rates, and land‐use ...
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    Mangroves have among the highest carbon densities of any tropical forest. These ‘blue carbon’ ecosystems can store large amounts of carbon for long periods, and their protection reduces greenhouse gas emissions and supports climate change mitigation. Incorporating mangroves into Nationally Determined Contributions to the Paris Agreement and their valuation on carbon markets requires predicting how the management of different land‐uses can prevent future greenhouse gas emissions and increase CO2 sequestration. We integrated comprehensive global datasets for carbon stocks, mangrove distribution, deforestation rates, and land‐use change drivers into a predictive model of mangrove carbon emissions. We project emissions and foregone soil carbon sequestration potential under ‘business as usual’ rates of mangrove loss. Emissions from mangrove loss could reach 2391 Tg CO2 eq by the end of the century, or 3392 Tg CO2 eq when considering foregone soil carbon sequestration. The highest emissions were predicted in southeast and south Asia (West Coral Triangle, Sunda Shelf, and the Bay of Bengal) due to conversion to aquaculture or agriculture, followed by the Caribbean (Tropical Northwest Atlantic) due to clearing and erosion, and the Andaman coast (West Myanmar) and north Brazil due to erosion. Together, these six regions accounted for 90% of the total potential CO2 eq future emissions. Mangrove loss has been slowing, and global emissions could be more than halved if reduced loss rates remain in the future. Notably, the location of global emission hotspots was consistent with every dataset used to calculate deforestation rates or with alternative assumptions about carbon storage and emissions. Our results indicate the regions in need of policy actions to address emissions arising from mangrove loss and the drivers that could be managed to prevent them.
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    Journal Title
    Global Change Biology
    DOI
    https://doi.org/10.1111/gcb.15571
    Funder(s)
    ARC
    Grant identifier(s)
    DP180103124
    Copyright Statement
    © 2021 The Authors. Global Change Biology published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
    Subject
    Environmental sciences
    Biological sciences
    Science & Technology
    Life Sciences & Biomedicine
    Biodiversity Conservation
    Ecology
    Publication URI
    http://hdl.handle.net/10072/403890
    Collection
    • Journal articles

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