Abstract
Climate change factors such as elevated CO2 concentrations, warming and changes in precipitation affect the stomatal flux of ozone (O-3) into leaves directly or indirectly by altering the stomatal conductance, atmospheric O-3 concentrations, frequency and extent of pollution episodes and length of the growing season. Results of a case study for winter wheat indicate that in a future climate the exceedance of the flux-based critical level of O-3 might be reduced across Europe, even when taking into account an increase in tropospheric background O-3 concentration. In contrast, the exceedance of the concentration-based critical level of O-3 will increase with the projected increase in tropospheric background O-3 concentration. The influence of climate change should be considered when predicting the future effects of O-3 on vegetation. There is a clear need for multi-factorial, open-air experiments to provide more realistic information for O-3 flux-effect modelling in a future climate. (c) 2006 Elsevier Ltd. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 763-770 |
| Number of pages | 8 |
| Journal | Environmental Pollution |
| Volume | 146 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Apr 2007 |
Keywords
- ozone
- climate change
- stomatal ozone flux
- AOT40
- winter wheat
- ELEVATED CO2 CONCENTRATION
- CARBON-DIOXIDE
- SURFACE OZONE
- ANTIOXIDANT ENZYMES
- DEPOSITION MODULE
- ATMOSPHERIC CO2
- PHOTOSYNTHESIS
- RESPONSES
- GROWTH
- YIELD