Belowground competition and the response of developing forest communities to atmospheric CO 2 and O 3
dc.contributor.author | Zak, Donald R. | en_US |
dc.contributor.author | Holmes, William E. | en_US |
dc.contributor.author | Pregitzer, Kurt S. | en_US |
dc.contributor.author | King, John S. | en_US |
dc.contributor.author | Ellsworth, David S. | en_US |
dc.contributor.author | Kubiske, Mark E. | en_US |
dc.date.accessioned | 2010-06-01T19:08:12Z | |
dc.date.available | 2010-06-01T19:08:12Z | |
dc.date.issued | 2007-10 | en_US |
dc.identifier.citation | ZAK, DONALD R.; HOLMES, WILLIAM E.; PREGITZER, KURT S.; KING, JOHN S.; ELLSWORTH, DAVID S.; KUBISKE, MARK E. (2007). "Belowground competition and the response of developing forest communities to atmospheric CO 2 and O 3 ." Global Change Biology 13(10): 2230-2238. <http://hdl.handle.net/2027.42/72323> | en_US |
dc.identifier.issn | 1354-1013 | en_US |
dc.identifier.issn | 1365-2486 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/72323 | |
dc.description.abstract | As human activity continues to increase CO 2 and O 3 , broad expanses of north temperate forests will be simultaneously exposed to elevated concentrations of these trace gases. Although both CO 2 and O 3 are potent modifiers of plant growth, we do not understand the extent to which they alter competition for limiting soil nutrients, like nitrogen (N). We quantified the acquisition of soil N in two 8-year-old communities composed of trembling aspen genotypes ( n = 5) and trembling aspen–paper birch which were exposed to factorial combinations of CO 2 (ambient and 560 ΜL L −1 ) and O 3 (ambient = 30–40 vs. 50–60 nL L −1 ). Tracer amount of 15 NH 4 + were applied to soil to determine how these trace gases altered the competitive ability of genotypes and species to acquire soil N. One year after isotope addition, we assessed N acquisition by measuring the amount of 15 N tracer contained in the plant canopy (i.e. recent N acquisition), as well as the total amount of canopy N (i.e. cumulative N acquisition). Exposure to elevated CO 2 differentially altered recent and cumulative N acquisition among aspen genotypes, changing the rank order in which they obtained soil N. Elevated O 3 also altered the rank order in which aspen genotypes obtained soil N by eliciting increases, decreases and no response among genotypes. If aspen genotypes respond similarly under field conditions, then rising concentrations of CO 2 and O 3 could alter the structure of aspen populations. In the aspen–birch community, elevated CO 2 increased recent N (i.e. 15 N) acquisition in birch (68%) to a greater extent than aspen (19%), suggesting that, over the course of this experiment, birch had gained a competitive advantage over aspen. The response of genotypes and species to rising CO 2 and O 3 concentrations, and how these responses are modified by competitive interactions, has the potential to change the future composition and productivity of northern temperate forests. | en_US |
dc.format.extent | 130416 bytes | |
dc.format.extent | 3109 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.rights | © 2007 Blackwell Publishing Ltd | en_US |
dc.subject.other | Betula Papyrifera | en_US |
dc.subject.other | Carbon Dioxide | en_US |
dc.subject.other | Competition | en_US |
dc.subject.other | FACE | en_US |
dc.subject.other | Forest | en_US |
dc.subject.other | Nitrogen | en_US |
dc.subject.other | Nutrient Acquisition | en_US |
dc.subject.other | Ozone | en_US |
dc.subject.other | Populus Tremuloides | en_US |
dc.subject.other | Species Composition | en_US |
dc.title | Belowground competition and the response of developing forest communities to atmospheric CO 2 and O 3 | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Ecology and Evolutionary Biology | en_US |
dc.subject.hlbsecondlevel | Geology and Earth Sciences | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | School of Natural Resources & Environment, University of Michigan, Ann Arbor, MI 48109, USA , | en_US |
dc.contributor.affiliationum | † Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA , | en_US |
dc.contributor.affiliationum | † Ecosystem Science Center, School of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI 49931, USA , | en_US |
dc.contributor.affiliationother | § Department of Forestry and Environmental Science, North Carolina State University, Raleigh, NC 27695, USA , | en_US |
dc.contributor.affiliationother | ¶ USDA Forest Service, North Central Research Station, Rhinelander, WI 54501, USA | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/72323/1/j.1365-2486.2007.01436.x.pdf | |
dc.identifier.doi | 10.1111/j.1365-2486.2007.01436.x | en_US |
dc.identifier.source | Global Change Biology | en_US |
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dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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