Photosynthesis (Net CO2 Exchange Rate) References
Abies alba [Silver Fir]
Heath, J., Ayres, E., Possell, M., Bardgett, R.D., Black, H.I.J., Grant, H., Ineson, P. and Kerstiens, G. 2005. Rising atmospheric CO2 reduces sequestration of root-derived soil carbon. Science 309: 1711-1713