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Blue Carbon Storage...
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Gullström, MartinStockholms universitet,Institutionen för ekologi, miljö och botanik
(author)
Blue Carbon Storage in Tropical Seagrass Meadows Relates to Carbonate Stock Dynamics, Plant–Sediment Processes, and Landscape Context : Insights from the Western Indian Ocean
- Article/chapterEnglish2018
Publisher, publication year, extent ...
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2017-07-10
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Springer Science and Business Media LLC,2018
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:su-148276
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-148276URI
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https://doi.org/10.1007/s10021-017-0170-8DOI
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https://gup.ub.gu.se/publication/256556URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Globally, seagrass ecosystems are considered major blue carbon sinks and thus indirect contributors to climate change mitigation. Quantitative estimates and multi-scale appraisals of sources that underlie long-term storage of sedimentary carbon are vital for understanding coastal carbon dynamics. Across a tropical–subtropical coastal continuum in the Western Indian Ocean, we estimated organic (Corg) and inorganic (Ccarb) carbon stocks in seagrass sediment. Quantified levels and variability of the two carbon stocks were evaluated with regard to the relative importance of environmental attributes in terms of plant–sediment properties and landscape configuration. The explored seagrass habitats encompassed low to moderate levels of sedimentary Corg (ranging from 0.20 to 1.44% on average depending on species- and site-specific variability) but higher than unvegetated areas (ranging from 0.09 to 0.33% depending on site-specific variability), suggesting that some of the seagrass areas (at tropical Zanzibar in particular) are potentially important as carbon sinks. The amount of sedimentary inorganic carbon as carbonate (Ccarb) clearly corresponded to Corg levels, and as carbonates may represent a carbon source, this could diminish the strength of seagrass sediments as carbon sinks in the region. Partial least squares modelling indicated that variations in sedimentary Corg and Ccarb stocks in seagrass habitats were primarily predicted by sediment density (indicating a negative relationship with the content of carbon stocks) and landscape configuration (indicating a positive effect of seagrass meadow area, relative to the area of other major coastal habitats, on carbon stocks), while seagrass structural complexity also contributed, though to a lesser extent, to model performance. The findings suggest that accurate carbon sink assessments require an understanding of plant–sediment processes as well as better knowledge of how sedimentary carbon dynamics are driven by cross-habitat links and sink–source relationships in a scale-dependent landscape context, which should be a priority for carbon sink conservation.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Lyimo, Liberatus D.Stockholms universitet,Institutionen för ekologi, miljö och botanik,University of Dodoma, Tanzania(Swepub:su)lily5133
(author)
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Dahl, MartinStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)mada5313
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Samuelsson, Göran S.Stockholms universitet,Institutionen för ekologi, miljö och botanik
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Eggertsen, MariaStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)maeg5369
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Anderberg, ElisabethStockholms universitet,Institutionen för ekologi, miljö och botanik
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Rasmusson, Lina M.Stockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:gu)xrasli
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Linderholm, Hans W.,1968Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xlinha
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Knudby, Anders
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Bandeira, Salomao
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Mtwana Nordlund, LinaStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)evno0867
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Björk, MatsStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)mabjo
(author)
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Stockholms universitetInstitutionen för ekologi, miljö och botanik
(creator_code:org_t)
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In:Ecosystems (New York. Print): Springer Science and Business Media LLC21:3, s. 551-5661432-98401435-0629
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Eggertsen, Maria
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Rasmusson, Lina ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
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Ecosystems (New ...
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Stockholm University
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University of Gothenburg