{"refrec":{"BRefID":394037,"RR":"<b>Wang, C.; Qiu, Y.; Hao, Z.; Wang, J.; Zhang, C.; Middelburg, J.J.; Wang, Y.; Zou, X.</b> (2024). Global patterns of organic carbon transfer and accumulation across the land–ocean continuum constrained by radiocarbon data. <i>Nature Geoscience 17(8)</i>: 778-786. <a href=\"https://dx.doi.org/10.1038/s41561-024-01476-4\" target=\"_blank\">https://dx.doi.org/10.1038/s41561-024-01476-4</a>","BEntID":391825,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Nature Geoscience 17(8)</i>: 778-786. <a href=\"https://dx.doi.org/10.1038/s41561-024-01476-4\" target=\"_blank\">https://dx.doi.org/10.1038/s41561-024-01476-4</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Wang, C.; Qiu, Y.; Hao, Z.; Wang, J.; Zhang, C.; Middelburg, J.J.; Wang, Y.; Zou, X.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Wang, C. <i>et al.</i>","Englishabstract":"Radiocarbon (Δ<sup>14</sup>C) serves as an effective tracer for identifying the origin and cycling of carbon in aquatic ecosystems. Global patterns of organic carbon (OC) Δ<sup>14</sup>C values in riverine particles and coastal sediments are essential for understanding the contemporary carbon cycle, but are poorly constrained due to under-sampling. This hinders our understanding of OC transfer and accumulation across the land–ocean continuum worldwide. Here, using machine learning approaches and &gt;3,800 observations, we construct a high-spatial resolution global atlas of Δ<sup>14</sup>C values in river–ocean continuums and show that Δ<sup>14</sup>C values of river particles and corresponding coastal sediments can be similar or different. Specifically, four characteristic OC transfer and accumulation modes are recognized: the old–young mode for systems with low river and high coastal sediment Δ<sup>14</sup>C values; the young–old and old–old modes for coastal systems with old OC accumulation receiving riverine particles with high and low Δ<sup>14</sup>C values, respectively; and the young–young mode with young OC for both riverine and coastal deposited particles. Distinguishing these modes and their spatial patterns is critical to furthering our understanding of the global carbon system. Specifically, among coastal areas with high OC contents worldwide, old–old systems are largely neutral to slightly negative to contemporary atmospheric carbon dioxide (CO<sub>2</sub>) removal, whereas young–old and old–young systems represent CO<sub>2</sub> sources and sinks, respectively. These spatial patterns of OC content and isotope composition constrain the local potential for blue carbon solutions.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Global patterns of organic carbon transfer and accumulation across the land–ocean continuum constrained by radiocarbon data","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2024,"MonPub":null,"DateUpdate":"2024-08-12","DateCreate":"2024-08-12","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41561-024-01476-4"},"refs":null,"anarec":{"AnaID":394037,"PubliDate":2024,"Pagination":"778-786","XtraPublOfAnaID":null,"ISBN":null,"Volume":"17","Issue":"8","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":123796,"SerRR":"Nature Geoscience. 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