{"refrec":{"BRefID":105015,"RR":"<b>Verheyden, A.; Roggeman, M.; Bouillon, S.; Elskens, M.; Beeckman, H.; Koedam, N.</b> (2005). Comparison between d<sup>13</sup>C of alpha-cellulose and bulk wood in the mangrove tree <i>Rhizophora mucronata</i>: implications for dendrochemistry. <i>Chem. Geol. 219(1-4)</i>: 275-282. <a href=\"http://dx.doi.org/10.1016/j.chemgeo.2005.02.015\" target=\"_blank\">dx.doi.org/10.1016/j.chemgeo.2005.02.015</a>","BEntID":100018,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Chem. Geol. 219(1-4)</i>: 275-282. <a href=\"https://dx.doi.org/10.1016/j.chemgeo.2005.02.015\" target=\"_blank\">https://dx.doi.org/10.1016/j.chemgeo.2005.02.015</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":1,"TerrestrialFlag":0,"Authorstring":"Verheyden, A.; Roggeman, M.; Bouillon, S.; Elskens, M.; Beeckman, H.; Koedam, N.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Verheyden, A. <i>et al.</i>","Englishabstract":"Stable carbon isotope analysis of tree rings has become a widely used proxy in environmental and palaeoclimatological studies. In those studies, a-cellulose has often been the preferred material because of its singular composition and its immobility in wood. However, cellulose extraction is a time-consuming procedure and since the development of on-line isotope ratio mass spectrometers has become the time-limiting step in the isotopic analysis of wood samples for dendrochemical purposes. In this study we evaluate the necessity of cellulose extraction for isotopic analysis of tree rings in a tropical mangrove tree, <i>Rhizophora mucronata</i> Lam. Comparison between the <i>d</i><sup>13</sup>C of extracted a-cellulose and bulk wood material revealed a highly significant linear relationship (<i>d</i><sup>13</sup>C<sub>bulk wood</sub> = 0.92 (± 0.08) * <i>d</i><sup>13</sup>C<sub>a-cellulose</sub> - 2.91 (± 2.04); <i>p</i> < 0.001) for a-cellulose values between -24‰ and -27‰. However a-cellulose was on average 0.97 ± 0.03‰ enriched in <sup>13</sup>C as compared to bulk wood. The slope of the regression was not significantly different from one (<i>p</i> < 0.05). Furthermore, no significant difference was found between either the <i>d</i><sup>13</sup>C<sub>bulk wood</sub> - <i>d</i><sup>13</sup>C<sub>a-cellulose</sub> slopes for earlywood and latewood or between the slopes for samples from trees growing in contrasting environmental conditions. These results indicate that bulk wood can be used instead of a-cellulose when measuring stable carbon isotopes in the sapwood of <i>R. mucronata</i> in the context of a dendrochronological investigation.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Comparison between d<sup>13</sup>C of alpha-cellulose and bulk wood in the mangrove tree <i>Rhizophora mucronata</i>: implications for dendrochemistry","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":"bivariate least square regression; dendrochronology; East Africa; Jayme-Wise; Kenya; tree rings","OtherDescriptors":null,"Notes":null,"AnaPub":2005,"MonPub":null,"DateUpdate":"2012-11-26","DateCreate":"2006-11-07","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000229873500015","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.chemgeo.2005.02.015"},"refs":null,"anarec":{"AnaID":105015,"PubliDate":2005,"Pagination":"275-282","XtraPublOfAnaID":null,"ISBN":null,"Volume":"219","Issue":"1-4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42560,"SerRR":"Chemical Geology. 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