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Title
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Impact of elevated on physiology and needle morphology of Scots pine (Pinus sylvestris) seedlings
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Author
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Abstract
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| The main objective of this study was to examine the impact of elevated atmospheric CO2 on leaf morphology, biochemistry and physiology of three year-old Scots pine (Pinus sylvestris L.) seedlings. Experimental facilities included four open top chambers (OTC), representing two replicated CO2 treatments, ambient (ca. 350 mu mol mol(-1), the current background level) and elevated CO2 (ambient + 350 mu mol mol(-1)). Trees outside the OTC were considered the control plot. Scots pine seedlings grown in elevated CO2 for one growing season exhibited a positive response to elevated CO2 conditions in this study, showing higher photosynthetic rates, higher chlorophyll, nitrogen and carbon concentrations, an unchanged C/N ratio, increased needle and dry mass per unit leaf area. Leaf nitrogen concentrations increased when expressed on an area basis, but not when on a mass basis. |
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Language
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English
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Source (book)
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International Conference on Impacts of Global Change on Tree Physiology, and Forest Ecosystems, Nov. 26-29, 1996, Wageningen, Netherlands
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Publication
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Dordrecht
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Springer
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1998
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ISBN
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0-7923-4921-0
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Volume/pages
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52
, p. 67-73
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ISI
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000074895800009
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