Stomatal frequency adjustment of four conifer species to historical changes in atmospheric CO2.

@article{Kouwenberg2003StomatalFA,
  title={Stomatal frequency adjustment of four conifer species to historical changes in atmospheric CO2.},
  author={Lenny L R Kouwenberg and Jennifer C McElwain and Wolfram M K{\"u}rschner and Friederike Wagner and David J Beerling and Francis E Mayle and H. W. Visscher},
  journal={American journal of botany},
  year={2003},
  volume={90 4},
  pages={610-9}
}
The species-specific inverse relation between atmospheric CO(2) concentration and stomatal frequency for many woody angiosperm species is being used increasingly with fossil leaves to reconstruct past atmospheric CO(2) levels. To extend our limited knowledge of the responsiveness of conifer needles to CO(2) fluctuations, the stomatal frequency response of four native North American conifer species (Tsuga heterophylla, Picea glauca, Picea mariana, and Larix laricina) to a range of historical CO… CONTINUE READING