- 1Institute for Climate and Atmospheric Science, University of Leeds, UK
- 2School of Atmospheric Sciences, Nanjing University, China
- 3Natural Resources Institute, University of Greenwich, UK
- 4Global Systems Institute, University of Exeter, UK
- 5Key Lab of Crop Genetics & Physiology of Jiangsu Province, Yangzhou University, China
- 6Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, China
- 7Met Office, Exeter, UK
- 8College of Environmental Science and Engineering, Yangzhou University, China
Ozone (O3) threatens food security by reducing rice yields, a staple food for half of the world’s population. While numerical research has shown the negative impact of O3 on rice through mathematical methods and crop models, existing global assessments have not incorporated data from rice-specific Free Air Concentration Enrichment (FACE) experiments into the mechanical models that simulate the interactions among crop phenology, physiology, and O3. FACE experiments are novel field experiments with O3 distributed directly to the crops in the field. This provides a realistic environment for studying how rice responds to O3 and is well-suited for evaluating its impact.
To perform this study, we use the calibrated JULES-crop model based on data from O3-FACE experiments, to simulate the effects of O3 on rice. We investigate the response of rice under various shared socio-economic pathways (SSPs) as part of CMIP6. These SSPs represent a range of potential future anthropogenic emissions and different climate projections, from scenarios of regional conflict to those of global cooperation. By assessing the effects of O3 on rice under these future scenarios, we gain valuable insights into pathways that could mitigate damage to food security. This research provides a critical foundation for policymakers facing the dual challenges of air pollution and climate change.
How to cite: Xu, B., Dobbie, S., Yang, H., Yang, L., Jiang, Y., Challinor, A., Williams, K., Wang, Y., and Wang, T.: Ozone (O3) risks to rice yields under warming climate using O3-FACE observations, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-4826, https://doi.org/10.5194/egusphere-egu25-4826, 2025.
