{"refrec":{"BRefID":348328,"RR":"<b>Van Dam, B.R.; Zeller, M.A.; Lopes, C.; Smyth, A.R.; Böttcher, M.E.; Osburn, C.L.; Zimmerman, T.; Pröfrock, D.; Fourqurean, J.W.; Thomas, H.</b> (2021). Calcification-driven CO<sub>2</sub> emissions exceed “Blue Carbon” sequestration in a carbonate seagrass meadow. <i>Science Advances 7(51)</i>: eabj1372. <a href=\"https://dx.doi.org/10.1126/sciadv.abj1372\" target=\"_blank\">https://dx.doi.org/10.1126/sciadv.abj1372</a>","BEntID":345022,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Science Advances 7(51)</i>: eabj1372. <a href=\"https://dx.doi.org/10.1126/sciadv.abj1372\" target=\"_blank\">https://dx.doi.org/10.1126/sciadv.abj1372</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Van Dam, B.R.; Zeller, M.A.; Lopes, C.; Smyth, A.R.; Böttcher, M.E.; Osburn, C.L.; Zimmerman, T.; Pröfrock, D.; Fourqurean, J.W.; Thomas, H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Van Dam, B.R. <i>et al.</i>","Englishabstract":"Long-term “Blue Carbon” burial in seagrass meadows is complicated by other carbon and alkalinity exchanges that shape net carbon sequestration. We measured a suite of such processes, including denitrification, sulfur, and inorganic carbon cycling, and assessed their impact on air-water CO<sub>2</sub> exchange in a typical seagrass meadow underlain by carbonate sediments. Eddy covariance measurements reveal a consistent source of CO<sub>2</sub> to the atmosphere at an average rate of 610 ± 990 μmol m<sup>−2</sup> hour<sup>−1</sup> during our study and 700 ± 660 μmol m<sup>−2</sup> hour<sup>−1</sup> (6.1 mol m<sup>−2</sup> year<sup>−1</sup>) over an annual cycle. Net alkalinity consumption by ecosystem calcification explains &gt;95% of the observed CO<sub>2</sub> emissions, far exceeding organic carbon burial and anaerobic alkalinity generation. We argue that the net carbon sequestration potential of seagrass meadows may be overestimated if calcification-induced CO<sub>2</sub> emissions are not accounted for, especially in regions where calcification rates exceed net primary production and burial.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Calcification-driven CO<sub>2</sub> emissions exceed “Blue Carbon” sequestration in a carbonate seagrass meadow","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":2021,"MonPub":null,"DateUpdate":"2021-12-17","DateCreate":"2021-12-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000730600400010","VABBcode":null,"OpenAcc":1,"DOI":"10.1126/sciadv.abj1372"},"refs":null,"anarec":{"AnaID":348328,"PubliDate":2021,"Pagination":"eabj1372","XtraPublOfAnaID":null,"ISBN":null,"Volume":"7","Issue":"51","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":248966,"SerRR":"Science Advances. 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