Sap flux in pure aspen and mixed aspen-birch forests exposed to elevated concentrations of carbon dioxide and ozone.

@article{Uddling2008SapFI,
  title={Sap flux in pure aspen and mixed aspen-birch forests exposed to elevated concentrations of carbon dioxide and ozone.},
  author={Johan Uddling and Ronald M. Teclaw and Mark E. Kubiske and Kurt S. Pregitzer and David S Ellsworth},
  journal={Tree physiology},
  year={2008},
  volume={28 8},
  pages={1231-43}
}
Elevated concentrations of atmospheric carbon dioxide ([CO2]) and tropospheric ozone ([O3]) have the potential to affect tree physiology and structure and hence forest water use, which has implications for climate feedbacks. We investigated how a 40% increase above ambient values in [CO2] and [O3], alone and in combination, affect tree water use of pure aspen and mixed aspen-birch forests in the free air CO2-O3 enrichment experiment near Rhinelander, Wisconsin (Aspen FACE). Measurements of sap… CONTINUE READING