Photosynthesis (Net CO2 Exchange Rate) References
Understory Plants in a Spruce Model Ecosystem [Homogyne alpina, Oxalis acetosella L. (Irish shamrock), and Rubus hirtus]
Hattenschwiler, S. and Korner, C. 1996. Effects of elevated CO2 and increased nitrogen deposition on photosynthesis and growth of understory plants in spruce model ecosystems. Oecologia 106: 172-180.