Soil nitrogen transformations under Populus tremuloides, Betula papyrifera and Acer saccharum following 3 years exposure to elevated CO2 and O3Author(s): William E. Holmes; Donald R. Zak; Kurt S. Pregitzer; John S. King
Source: Global Change Biology. 9: 1743-1750.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: View PDF (323.56 KB)
Increases in atmospheric CO2 and tropospheric O3 may affect forest N cycling by altering plant litter production and the availability of substrates for microbial metabolism. Three years following the establishment of our free-air CO2-O3 enrichment experiment, plant growth has been stimulated by elevated CO2 resulting in greater substrate input to soil; elevated O3 has counteracted this effect. We hypothesized that rates of soil N cycling would be enhanced by greater plant productivity under elevated CO2, and that CO2 effects would be dampened by O3.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationHolmes, William E.; Zak, Donald R.; Pregitzer, Kurt S.; King, John S. 2003. Soil nitrogen transformations under Populus tremuloides, Betula papyrifera and Acer saccharum following 3 years exposure to elevated CO2 and O3
KeywordsAcer, Betula, CO2, immobilization, mineralization, 15N, N cycling, O3, Populus
- Stem wood properties of Populus tremuloides, Betula papyrifera and Acer saccharum saplings after three years of treatments to elevated carbon dioxide and ozone
- Leaf size and surface characteristics of Betula papyrifera exposed to elevated CO2 and O3
- Impacts of elevated atmospheric CO2 and O3 on Paper Birch (Betula papyrifera): reproductive fitness
XML: View XML