{"refrec":{"BRefID":10685,"RR":"<b>Overdieck, D.</b> (1990). Direct effects of elevated CO<sub>2</sub> concentration levels on grass and clover in 'model-ecosystems', <b><i>in</i></b>: Beukema, J.J. <i>et al.</i> (Ed.) <i>Expected effects of climatic change on marine coastal ecosystems. Developments in Hydrobiology,</i> 57: pp. 41-47","BEntID":10685,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Beukema, J.J. <i>et al.</i> <i>Expected effects of climatic change on marine coastal ecosystems. Developments in Hydrobiology,</i> 57: pp. 41-47","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Overdieck, D.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Overdieck, D.","Englishabstract":"In long-term experiments (up to 2.5 vegetation periods) grass/clover-mixtures (1: 1) were exposed to 4 CO<sub>2</sub> concentration levels (340, 450, 600 and 800 mm³.dm<sup>-</sup>³) in acrylic-miniglasshouses which were climatized according to the microclimate outside. At 600 mm³.dm<sup>-</sup>³, plant growth and production were enhanced by 20-40% compared to cultures at 340 mm³.dm<sup>-</sup>³. Only the seed weight of the clover species increased by max. 28% with elevated CO<sub>2</sub> concentration levels. Without clippings, the clover species tended to be more enhanced by additional CO<sub>2</sub>. With clippings, the grass was more successful in competition. The C/N-, C/P-, C/Ca- and C/K-relationships were higher at elevated CO<sub>2</sub> concentration levels. The CO<sub>2</sub> net fixation of the whole canopy increased by 40%, when the CO<sub>2</sub> concentration was raised from 340 to 600 mm³.dm<sup>-</sup>³. This enhancement decreased until the end of the third vegetation period to about 10%. The ecological consequences of these findings are discussed.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"Direct effects of elevated CO<sub>2</sub> concentration levels on grass and clover in 'model-ecosystems'","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":1990,"MonPub":null,"DateUpdate":"2003-10-01","DateCreate":"2001-06-06","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":10685,"PubliDate":1990,"Pagination":"41-47","XtraPublOfAnaID":null,"ISBN":"978-94-010-7397-4","Volume":"57","Issue":null,"BRefMon":10678,"BRefMonRR":"<b>Beukema, J.J.; Wolff, W.J.; Brouns, J.J.W.M. (Ed.)</b> (1990). Expected effects of climatic change on marine coastal ecosystems. <i>Developments in Hydrobiology</i>, 57. Kluwer Academic Publishers: Dordrecht/Boston/London. ISBN 978-94-010-7397-4; e-ISBN 978-94-009-2003-3. 221 pp. <a href=\"https://dx.doi.org/10.1007/978-94-009-2003-3\" target=\"_blank\">https://dx.doi.org/10.1007/978-94-009-2003-3</a>","BRefXtra":null,"BRefXtraRR":null,"SerBRefID":7270,"SerRR":"<b>Dumont, H.J. (Ed.)</b> Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht.  ISSN 0167-8418","StandardTitleSer":"Developments in Hydrobiology","ISSN":"0167-8418","AbbrevSer":"Dev. Hydrobiol.","StandardTitleMon":"Expected effects of climatic change on marine coastal ecosystems","StartPage":41,"Pages":7,"ToPubliDate":null,"BRefBibLvlCode":"MS","SerNotes":"Enkel nog digitaal bewaard","AutString":"Beukema, J.J.; Wolff, W.J.; Brouns, J.J.W.M. 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