Publication Details

Photosynthetic acclimation of overstory Populus tremuloides and understory Acer saccharum to elevated atmospheric CO2 concentration: interactions with shade and soil nitrogen

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Kubiske, Mark E.; Zak, Donald R.; Pregitzer, Kurt S.; Takeuchi, Yu

Year Published

2002

Publication

Tree Physiology. 22: 321-329.

Abstract

We exposed Populus tremuloides Michx. and Acer saccharum Marsh. to a factorial combination of ambient and elevated atmospheric CO2 concentrations ([CO2]) and high-nitrogen (N) and low-N soil treatments in open-top chambers for 3 years. Our objective was to compare photosynthetic acclimation to elevated [CO2] between species of contrasting shade tolerance, and to determine if soil N or shading modify the acclimation response. Sun and shade leaf responses to elevated [CO2] and soil N were compared between upper and lower canopy leaves of P. tremuloides and between A. saccharum seedlings grown with and without shading by .

Citation

Kubiske, Mark E.; Zak, Donald R.; Pregitzer, Kurt S.; Takeuchi, Yu. 2002. Photosynthetic acclimation of overstory Populus tremuloides and understory Acer saccharum to elevated atmospheric CO2 concentration: interactions with shade and soil nitrogen. Tree Physiology. 22: 321-329.

Last updated on: October 21, 2008