Long-term structural canopy changes sustain net photosynthesis per ground area in high arctic Vaccinium uliginosum exposed to changes in near-ambient UV-B levels.

@article{Boesgaard2012LongtermSC,
  title={Long-term structural canopy changes sustain net photosynthesis per ground area in high arctic Vaccinium uliginosum exposed to changes in near-ambient UV-B levels.},
  author={Kristine Stove Boesgaard and Kristian Rost Albert and Helge Ro-Poulsen and Anders Michelsen and Teis N. Mikkelsen and Niels Martin Schmidt},
  journal={Physiologia plantarum},
  year={2012},
  volume={145 4},
  pages={
          540-50
        }
}
Full recovery of the ozone layer is not expected for several decades and consequently, the incoming level of solar ultraviolet-B (UV-B) will only slowly be reduced. Therefore to investigate the structural and photosynthetic responses to changes in solar UV-B we conducted a 5-year UV-B exclusion study in high arctic Greenland. During the growing season, the gas exchange (H₂O and CO₂) and chlorophyll-a fluorescence were measured in Vaccinium uliginosum. The leaf dry weight, carbon, nitrogen… CONTINUE READING
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