Data

Tracing blue carbon flows across diverse seascapes

Name: Tracing blue carbon flows across diverse seascapes
Published: 2026

Australian Institute of Marine Science

Australian Institute of Marine Science (AIMS)

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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://apps.aims.gov.au/metadata/view/12f73d1e-3e46-41ec-89f9-6e88c184c589&rft.title=Tracing blue carbon flows across diverse seascapes&rft.identifier=https://apps.aims.gov.au/metadata/view/12f73d1e-3e46-41ec-89f9-6e88c184c589&rft.publisher=Australian Institute of Marine Science (AIMS)&rft.description=Abstract: Plants occupying coastal ecosystems draw in carbon dioxide (CO2) from the air and water around them during photosynthesis. A fraction of this CO2 becomes fixed into plant biomass and can eventually contribute to the blue carbon pool—organic carbon (Corg) sequestered in slow-turnover sinks. An important step in protecting and enhancing this natural carbon sequestration pathway is determining the relative contributions of different coastal plants to this blue carbon pool in durable sinks. We compiled a global dataset of coastal soil carbon measurements and used a Bayesian hierarchical meta-regression model to explore the relative contribution of local (autochthonous) versus external (allochthonous) sources of Corg in the soils beneath tidal saltmarsh, mangrove, and seagrass wetlands. We found most soil Corg in coastal wetlands came from allochthonous sources, rather than the habitat-forming plants. Managing climate-resilient blue carbon seascapes, therefore, requires an awareness of this portfolio of contributors to soil carbon sequestration. However, study design aspects such as soil sampling depth, levels of sample replication, and the modelling approach used to trace Corg can have pronounced effects on the estimated contributions of different carbon sources. We outline a roadmap for improving how we track the various drivers of soil carbon sequestration in diverse mosaics of coastal vegetation.Maintenance and Update Frequency: notPlanned&rft.creator=Australian Institute of Marine Science (AIMS) &rft.date=2026&rft.coverage=westlimit=-142.31250643730166; southlimit=-48.017059049132236; eastlimit=197.2968685626984; northlimit=56.47306127513769&rft.coverage=westlimit=-142.31250643730166; southlimit=-48.017059049132236; eastlimit=197.2968685626984; northlimit=56.47306127513769&rft_rights=Creative Commons Attribution-NonCommercial 3.0 Australia License http://creativecommons.org/licenses/by-nc/3.0/au/&rft_rights=Use Limitation: All AIMS data, products and services are provided as is and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.&rft_rights=Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: Australian Institute of Marine Science (AIMS). (2025). Tracing blue carbon flows across diverse seascapes. https://doi.org/10.25845/jt3q-4y65, accessed[date-of-access].&rft_subject=oceans&rft.type=dataset&rft.language=English Access the data

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http://creativecommons.org/licenses/by-nc/3.0/au/

Use Limitation: All AIMS data, products and services are provided "as is" and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.

Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: "Australian Institute of Marine Science (AIMS). (2025). Tracing blue carbon flows across diverse seascapes. https://doi.org/10.25845/jt3q-4y65, accessed[date-of-access]".

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Abstract:

Plants occupying coastal ecosystems draw in carbon dioxide (CO2) from the air and water around them during photosynthesis. A fraction of this CO2 becomes fixed into plant biomass and can eventually contribute to the blue carbon pool—organic carbon (Corg) sequestered in slow-turnover sinks. An important step in protecting and enhancing this natural carbon sequestration pathway is determining the relative contributions of different coastal plants to this blue carbon pool in durable sinks. We compiled a global dataset of coastal soil carbon measurements and used a Bayesian hierarchical meta-regression model to explore the relative contribution of local (autochthonous) versus external (allochthonous) sources of Corg in the soils beneath tidal saltmarsh, mangrove, and seagrass wetlands. We found most soil Corg in coastal wetlands came from allochthonous sources, rather than the habitat-forming plants. Managing climate-resilient blue carbon seascapes, therefore, requires an awareness of this portfolio of contributors to soil carbon sequestration. However, study design aspects such as soil sampling depth, levels of sample replication, and the modelling approach used to trace Corg can have pronounced effects on the estimated contributions of different carbon sources. We outline a roadmap for improving how we track the various drivers of soil carbon sequestration in diverse mosaics of coastal vegetation.

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Maintenance and Update Frequency: notPlanned

Notes

Credit
Barneche, DR (AIMS)

Credit
Dr Kay Davis

Credit
Dr Cecilia Pascelli

Credit
Dr Julie Vercelloni

Credit
Cal Faubel

Credit
Dr Shaun Wilson

Credit
Funding Body: BHP Pty Ltd

Modified: 11 09 2026

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Spatial Coverage And Location

text: westlimit=-142.31250643730166; southlimit=-48.017059049132236; eastlimit=197.2968685626984; northlimit=56.47306127513769

Subjects

oceans |

User Contributed Tags

Other Information

Fulton, C. J., D. R. Barneche, K. Davis, et al. 2025. “Tracing Blue Carbon Flows Across Diverse Seascapes.” Global Change Biology31, no. 8: e70420. https://doi.org/10.1111/gcb.70420

doi : https://doi.org/10.1111/gcb.70420 DOI Link

Fulton_etal_BlueCarbonTracingSupp2 Data

url : https://api.aims.gov.au/data-v2.0/12f73d1e-3e46-41ec-89f9-6e88c184c589/files/Fulton_etal_BlueCarbonTracingSupp2.xlsx External Link

global : 52d28cb2-78fe-4252-b42a-235b62096b47

Identifiers

global : 12f73d1e-3e46-41ec-89f9-6e88c184c589