Title
Impact of elevated <tex>$CO_{2}$</tex> on physiology and needle morphology of Scots pine (Pinus sylvestris) seedlings Impact of elevated <tex>$CO_{2}$</tex> on physiology and needle morphology of Scots pine (Pinus sylvestris) seedlings
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
conferenceObject
Publication
Dordrecht :Springer, [*]
Subject
Biology
Source (book)
International Conference on Impacts of Global Change on Tree Physiology, and Forest Ecosystems, Nov. 26-29, 1996, Wageningen, Netherlands
ISBN
0-7923-4921-0
ISI
000074895800009
Carrier
E
Target language
English (eng)
Abstract
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.
E-info
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