Interactive effects of soil temperature and resource availability on physiological and growth responses of white birch (Betula papyrifera) seedlings to atmospheric carbon dioxide elevation

Abstract

Predicting the impacts of future high atmospheric CO2 concentration, [CO2], on the physiology and growth of boreal forests is complicated by interactions of CO2 with other environmental conditions. Two-factor CO2 x environment interactions on boreal tree species have been reported. This research was designed to determine how photosynthetic and growth responses of white birch (Betula papyrifera Marsh.) to elevated [CO2] are influenced by multifactor interactions of other environmental factors.