Data/hora: 11/06/2024 07:18:19

Provedor de dados: | 5
País: | France
Título: | Blue Carbon Storage Capacity of Temperate Eelgrass (Zostera marina) Meadows
Autores: | Rohr, Maria Emilia; Holmer, Marianne; Baum, Julia K.; Bjork, Mats; Chin, Diana; Chalifour, Lia; Cimon, Stephanie; Cusson, Mathieu; Dahl, Martin; Deyanova, Diana; Duffy, J. Emmet; Eklof, Johan S.; Geyer, Julie K.; Griffin, John N.; Gullstrom, Martin; Hereu, Clara M.; Hori, Masakazu; Hovel, Kevin A.; Hughes, A. Randall; Jorgensen, Pablo; Kiriakopolos, Stephanie; Moksnes, Per-olav; Nakaoka, Masahiro; O'Connor, Mary I.; Peterson, Bradley; Reiss, Katrin; Reynolds, Pamela L.; Rossi, Francesca; Ruesink, Jennifer; Santos, Rui; Stachowicz, John J.; Tomas, Fiona; Lee, Kun-seop; Unsworth, Richard K. F.; Bostrom, Christoffer.
Data: | 2018-10
Ano: | 2018
Palavras-chave: | Blue carbon; Seagrass; Z; Marina.
Resumo: | Despite the importance of coastal ecosystems for the global carbon budgets, knowledge of their carbon storage capacity and the factors driving variability in storage capacity is still limited. Here we provide an estimate on the magnitude and variability of carbon stocks within a widely distributed marine foundation species throughout its distribution area in temperate Northern Hemisphere. We sampled 54 eelgrass (Zostera marina) meadows, spread across eight ocean margins and 36 degrees of latitude, to determine abiotic and biotic factors influencing organic carbon (C-org) stocks in Zostera marina sediments. The C-org stocks (integrated over 25-cm depth) showed a large variability and ranged from 318 to 26,523gC/m(2) with an average of 2,721gC/m(2). The projected C-org stocks obtained by extrapolating over the top 1m of sediment ranged between 23.1 and 351.7MgC/ha, which is in line with estimates for other seagrasses and other blue carbon ecosystems. Most of the variation in C-org stocks was explained by five environmental variables (sediment mud content, dry density and degree of sorting, and salinity and water depth), while plant attributes such as biomass and shoot density were less important to C-org stocks. Carbon isotopic signatures indicated that at most sites &lt;50% of the sediment carbon is derived from seagrass, which is lower than reported previously for seagrass meadows. The high spatial carbon storage variability urges caution in extrapolating carbon storage capacity between geographical areas as well as within and between seagrass species.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00610/72199/70994.pdf

https://archimer.ifremer.fr/doc/00610/72199/70995.pdf

DOI:10.1029/2018GB005941

https://archimer.ifremer.fr/doc/00610/72199/

Editor: | Amer Geophysical Union
Formato: | application/pdf
Fonte: | Global Biogeochemical Cycles (0886-6236) (Amer Geophysical Union), 2018-10 , Vol. 32 , N. 10 , P. 1457-1475

Fonte:

info:eu-repo/semantics/openAccess

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