{"refrec":{"BRefID":338723,"RR":"<b>Mazarrasa, I.; Lavery, P.; Duarte, C.M.; Lafratta, A.; Lovelock, C.E.; Macreadie, P.I.; Samper-Villarreal, J.; Salinas, C.; Sanders, C.; Trevathan-Tackett, S.; Young, M.; Steven, A.; Serrano, O.</b> (2021). Factors determining seagrass Blue Carbon across bioregions and geomorphologies. <i>Global Biogeochem. Cycles 35(6)</i>: e2021GB006935. <a href=\"https://hdl.handle.net/10.1029/2021gb006935\" target=\"_blank\">https://hdl.handle.net/10.1029/2021gb006935</a>","BEntID":335358,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Global Biogeochem. Cycles 35(6)</i>: e2021GB006935. <a href=\"https://hdl.handle.net/10.1029/2021gb006935\" target=\"_blank\">https://hdl.handle.net/10.1029/2021gb006935</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Mazarrasa, I.; Lavery, P.; Duarte, C.M.; Lafratta, A.; Lovelock, C.E.; Macreadie, P.I.; Samper-Villarreal, J.; Salinas, C.; Sanders, C.; Trevathan-Tackett, S.; Young, M.; Steven, A.; Serrano, O.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Mazarrasa, I. <i>et al.</i>","Englishabstract":"We examined the variability in seagrass soil C<sub>org</sub> stocks and composition across Australia and identified the main drivers of variability, applying a spatially hierarchical approach that incorporates bioregions and geomorphic settings. Top 30 cm soil C<sub>org</sub> stocks were similar across bioregions and geomorphic settings (min-max: 20–26 Mg C<sub>org</sub> ha<sup>-1</sup>), but meadows formed by large species (i.e. <i>Amphibolis</i> spp. and <i>Posidonia</i> spp.) showed higher stocks (24–29 Mg C<sub>org</sub> ha<sup>-1</sup>) than those formed by smaller species (e.g. <i>Halodule, Halophila, Ruppia, Zostera, Cymodocea</i> and <i>Syringodium</i>; 12–21 Mg C<sub>org</sub> ha<sup>-1</sup>). In temperate coastal meadows dominated by large species, soil C<sub>org</sub> stocks mainly derived from seagrass C<sub>org</sub> (72± 2 %), while allochthonous C<sub>org</sub> dominated soil C<sub>org</sub> stocks in meadows formed by small species in temperate and tropical estuarine meadows (64 ± 5%). In temperate coastal meadows, soil C<sub>org</sub> stocks were enhanced by low hydrodynamic exposure associated with high mud and seagrass C<sub>org</sub> contents. In temperate estuarine meadows, soil C<sub>org</sub> stocks were enhanced by high contributions of seagrass C<sub>org</sub>, low to moderate solar radiation and low human pressure. In tropical estuarine meadows formed by small species, large soil C<sub>org</sub> stocks were mainly associated with low hydrodynamic energy, low rainfall and high solar radiation. These results showcase that bioregion and geomorphic setting are not necessarily good predictors of soil C<sub>org</sub> stocks and that site-specific estimates based on local environmental factors are needed for Blue Carbon projects and greenhouse gases accounting purposes.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Factors determining seagrass Blue Carbon across bioregions and geomorphologies","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:32:36.822457","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"seagrasses, Blue Carbon, bioregion, stable isotopes","OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2021-06-29","DateCreate":"2021-06-03","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000667032800002","VABBcode":null,"OpenAcc":1,"Handle":"10.1029/2021gb006935"},"refs":null,"anarec":{"AnaID":338723,"PubliDate":2021,"Pagination":"e2021GB006935","XtraPublOfAnaID":null,"ISBN":null,"Volume":"35","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45841,"SerRR":"Global Biogeochemical Cycles. 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