Could atmospheric carbon be driving sedimentation?

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dc.authoridZinicovscaia, Inga/0000-0003-0820-887X
dc.authoridLaptev, Gennady/0000-0002-2554-0770
dc.authoridKorychenskyi, Kyrylo/0000-0003-2439-2224
dc.authoridNuhanovic, Mirza/0000-0001-7962-8498
dc.authoridSmjecanin, Narcisa/0000-0001-6283-3110
dc.authorscopusid57211910439
dc.authorscopusid7003792111
dc.authorscopusid6603300608
dc.authorscopusid56442610100
dc.authorscopusid6508330268
dc.authorscopusid33568375400
dc.authorscopusid6701880110
dc.authorwosidLEGOVI?, TARZAN/CAJ-1993-2022
dc.authorwosidZinicovscaia, Inga/H-1656-2016
dc.authorwosidLaptev, Gennady/E-1299-2013
dc.contributor.authorVinkovic, Andrija
dc.contributor.authorLaptyev, Gennadiy
dc.contributor.authorYaprak, Gunseli
dc.contributor.authorSlavova, Krasimira
dc.contributor.authorJoksimovic, Danijela
dc.contributor.authorTroskot-Corbic, Tamara
dc.contributor.authorFrontasyeva, Marina
dc.date.accessioned2023-01-12T19:50:58Z
dc.date.available2023-01-12T19:50:58Z
dc.date.issued2022
dc.departmentN/A/Departmenten_US
dc.description.abstractPurpose The objective of this study was to provide insights into the most recent responses of sediments to climate change and their capability to sequester atmospheric carbon (C). Methods Three sediment cores were collected, one from the western Black Sea, and two from the southern Adriatic Sea. Cores were extruded and sectioned into 1 cm or 0.5 cm intervals. Sections were frozen, weighed, freeze-dried, and then weighed again to obtain dry weights. Freeze-dried samples were dated by using lead 210 (Pb-210) and cesium 137/ americium 241 (Cs-137/Am-241). Organic and inorganic C were determined by combustion. Particle size distribution was determined using a Beckman Coulter particle size analyzer (LS 13,320; Beckman Coulter Inc.). Mineralogical analyses were carried out by a Philips X'Pert powder diffractometer. Results Sedimentation and organic and inorganic C accumulation rates increased with time in both the Black Sea and the Adriatic Sea. The increase in accumulation rates continued after the global introduction in the early 1970s of controls on the release of phosphorus (P) into the environment and despite the reduced sediment yield of major rivers (Po and Danube). Therefore, the increased accumulation of organic and inorganic C in the sediments cannot be assigned only to nutrient availability. Instead, we suggest that the increase in organic C is the consequence of the increase in atmospheric C, which has made more carbon dioxide (CO2) available to phytoplankton, thus enabling more efficient photosynthesis. This process known as CO2 fertilization may increase the organic C accumulation in sediments. Simultaneously, the increase of sea temperatures decreases the calcite solubility resulting in increases of the inorganic C accumulation. Conclusion Our results suggest that long-term, general increases in accumulation rates of organic and inorganic C in sediments are the consequence of increases in atmospheric C. This shows that coastal sediments play an important role in C uptake and thus in regulating the Earth's climate.en_US
dc.description.sponsorshipCroatian Science Foundation-Youth Careers Development Project [ESF-DOK-1-2018]; Croatian Science Foundation [IP-01-2018]en_US
dc.description.sponsorshipAV acknowledges the support of the Croatian Science Foundation-Youth Careers Development Project (ESF-DOK-1-2018). JO and TK acknowledge the support of the Croatian Science Foundation project IP-01-2018.en_US
dc.identifier.doi10.1007/s11368-022-03282-0
dc.identifier.endpage2928en_US
dc.identifier.issn1439-0108
dc.identifier.issn1614-7480
dc.identifier.issn1439-0108en_US
dc.identifier.issn1614-7480en_US
dc.identifier.issue11en_US
dc.identifier.scopus2-s2.0-85134750547en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage2912en_US
dc.identifier.urihttps://doi.org/10.1007/s11368-022-03282-0
dc.identifier.urihttps://hdl.handle.net/11454/76199
dc.identifier.volume22en_US
dc.identifier.wosWOS:000829720100001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofJournal Of Soils And Sedimentsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectClimate changeen_US
dc.subjectPb-210 and Cs-137 datingen_US
dc.subjectCarbonen_US
dc.subjectParticle size distributionen_US
dc.subjectX-ray powder diffractionen_US
dc.subjectThe Adriatic Seaen_US
dc.subjectThe Black Seaen_US
dc.subjectSedimenten_US
dc.subjectSedimentation rateen_US
dc.subjectBlack-Seaen_US
dc.subjectDioxide Uptakeen_US
dc.subjectAegean Seaen_US
dc.subjectPb-210en_US
dc.subjectTrendsen_US
dc.subjectOceanen_US
dc.subjectWateren_US
dc.subjectPhotosynthesisen_US
dc.subjectAcidificationen_US
dc.subjectNutrienten_US
dc.titleCould atmospheric carbon be driving sedimentation?en_US
dc.typeArticleen_US

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