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Variation in vessel diameter and leaf area of white birch (Betula papyrifera) along moisture gradients in Canada

dc.contributor.advisorWang, Jian
dc.contributor.authorKwiaton, Lucy Esperanza Crawle
dc.date.accessioned2012-11-11T03:03:57Z
dc.date.available2012-11-11T03:03:57Z
dc.date.created2010-01
dc.date.issued2010
dc.identifier.urihttp://knowledgecommons.lakeheadu.ca/handle/2453/273
dc.description.abstractOne of the key hypotheses of this research is that white birch that has evolved in wet areas will have larger vessels than those trees that evolved in dry areas. Since the wet areas are less likely to experience drought they can therefore produce larger vessels while dry areas produce smaller vessels to ward off any embolism that may occur during a drought. The second hypothesis is that birch trees in dry areas will produce lower sapwood to leaf area ratios then those in wetter environments. Trees in the wet areas can support higher leaf area per unit of sapwood area while trees in dry areas have made structural modifications to leaf area as a result of water stress. In total thirty sites were sampled across Canada ranging from Ontario to B.C.en_US
dc.language.isoen_USen_US
dc.subjectPaper birchen_US
dc.subjectCanadaen_US
dc.subjectGrowthen_US
dc.subjectEffect of water levels onen_US
dc.subjectLeavesen_US
dc.subjectAnatomyen_US
dc.titleVariation in vessel diameter and leaf area of white birch (Betula papyrifera) along moisture gradients in Canadaen_US
dc.typeThesisen_US
etd.degree.nameMaster of Science
etd.degree.levelMasteren_US
etd.degree.disciplineForestry and the Forest Environmenten_US
etd.degree.grantorLakehead Universityen_US
dc.contributor.committeememberLeitch, Mathew
dc.contributor.committeememberReid, Doug


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