Photosynthesis (Net CO2 Exchange Rate) References
Ambrosia artemisiifolia L. [Annual Ragweed]

Hirose, T., Ackerly, D.D., Traw, M.B. and Bazzaz, F.A.  1996.  Effects of CO2 elevation on canopy development in the stands of two co-occurring annuals.  Oecologia 108: 215-223.

Hirose, T., Ackerly, D.D., Traw, M.B., Ramseier, D. and Bazzaz, F.A.  1997.  CO2, elevation, canopy photosynthesis, and optimal leaf area index.  Ecology 78: 2339-2350.

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