Photosynthesis (Net CO2 Exchange Rate) References
Betula pubescens Ehrh. [Downy Birch]
Beerling, D.J., Heath, J., Woodward, F.I. and Mansfield, T.A. 1996. Drought-CO2 interactions in trees: observations and mechanisms. New Phytologist 134: 235-242.
Beerling, D.J. and Woodward, F.I. 1996. In situ gas exchange responses of boreal vegetation to elevated CO2 and temperature: first season results. Global Ecology and Biogeography Letters 5: 117-127.