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Published (Version of record)CC BY V4.0, Open
Journal article
Global blue carbon accumulation in tidal wetlands increases with climate change
National Science Review, Vol.8, 296
15/12/2020
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Abstract
Coastal tidal wetlands produce and accumulate significant amounts of organic carbon (C) that help to mitigate climate change. However, previous data limitations have prevented a robust evaluation of the global rates and mechanisms driving C accumulation. Here, we go beyond recent soil C stock estimates to reveal global tidal wetland C accumulation and predict changes under relative sea level rise, temperature and precipitation. We use data from literature study sites and our new observations spanning wide latitudinal gradients and 20 countries. Globally, tidal wetlands accumulate 53.65 (95%CI: 48.52–59.01) Tg C yr −1 , which is ∼30% of the organic C buried on the ocean floor. Modeling based on current climatic drivers and under projected emissions scenarios revealed a net increase in the global C accumulation by 2100. This rapid increase is driven by sea level rise in tidal marshes, and higher temperature and precipitation in mangroves. Countries with large areas of coastal wetlands, like Indonesia and Mexico, are more susceptible to tidal wetland C losses under climate change, while regions such as Australia, Brazil, the USA and China will experience a significant C accumulation increase under all projected scenarios.
Details
- Title
- Global blue carbon accumulation in tidal wetlands increases with climate change
- Creators
- F Wang - Chinese Academy of SciencesChristian J Sanders - Southern Cross UniversityIsaac R Santos - Southern Cross UniversityJianwu Tang - East China Normal UniversityMark Schuerch - University of LincolnMatthew L Kirwan - College of William and MaryRobert E Kopp - Rutgers UniversityKai Zhu - University of California, Santa Cruz
- Publication Details
- National Science Review, Vol.8, 296
- Publisher
- Oxford University Press
- Grants
- Increase of soil carbon burial in mangrove wetlands, DP150103286, Australian Research Council
- Identifiers
- 991012972370902368
- Copyright
- The Author(s) 2020. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
- Academic Unit
- National Marine Science Centre
- Language
- English
- Resource Type
- Journal article