Articles | Volume 18, issue 16
https://doi.org/10.5194/bg-18-4717-2021
https://doi.org/10.5194/bg-18-4717-2021
Research article
 | 
18 Aug 2021
Research article |  | 18 Aug 2021

Blue carbon stocks and exchanges along the California coast

Melissa A. Ward, Tessa M. Hill, Chelsey Souza, Tessa Filipczyk, Aurora M. Ricart, Sarah Merolla, Lena R. Capece, Brady C O'Donnell, Kristen Elsmore, Walter C. Oechel, and Kathryn M. Beheshti

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Cited articles

Alongi, D. M.: Blue carbon coastal sequestration for climate change mitigation. Springer International Publishing, Briefs in Climate Studies, https://doi.org/10.1007/978-3-319-91698-9, 2018. 
Attard, K. M., Rodil, I. F., Berg, P., Norkko, J., Norkko, A., and Glud, R. N.: Seasonal metabolism and carbon export potential of a key coastal habitat: The perennial canopy-forming macroalga Fucus vesiculosus, Limnol. Ocean., 64, 149–164, https://doi.org/10.1002/lno.11026, 2019. 
Benner, R., Fogel, M. L., and Sprague, E. K.: Diagenesis of belowground biomass of Spartina alterniflora in salt-marsh sediments, Limnol. Ocean., 36, 1358–1374, https://doi.org/10.4319/lo.1991.36.7.1358, 1991. 
Blum, L. K.: Spartina alterniflora root dynamics in a Virginia marsh, Mar. Ecol. Prog. Ser., 102, 169–178, 1993. 
Bos, A. R., Bouma, T. J., de Kort, G. L. J., and van Katwijk, M. M.: Ecosystem engineering by annual intertidal seagrass beds: Sediment accretion and modification, Estuar. Coast. Shelf Sci., 74, 344–348, https://doi.org/10.1016/j.ecss.2007.04.006, 2007. 
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Short summary
Salt marshes and seagrass meadows ("blue carbon" habitats) can sequester and store high levels of organic carbon (OC), helping to mitigate climate change. In California blue carbon sediments, we quantified OC storage and exchange between these habitats. We find that (1) these salt marshes store about twice as much OC as seagrass meadows do and (2), while OC from seagrass meadows is deposited into neighboring salt marshes, little of this material is sequestered as "long-term" carbon.
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