Felix Leung

Department: Physical Geography
Research Centre/Unit: Climate Change Modelling

Project Summary

Tropospheric ozone (O3) is the third most important anthropogenic Greenhouse Gas and is detrimental to plant productivity. Ozone already causes significant crop production losses (5 Billion $ per year in US, similar in EU) with concentrations increasing in South Asia and South East Asia, which have significant agricultural areas and large, growing populations. The aim of this research is to quantify the impacts of present-day and future tropospheric O3 on crop production at the regional scale until 2050, using the Joint UK Land Environment Simulator adapted to include the major global crop types (JULES-crop). JULES forms the land surface component of the latest generation Earth System Model (ESM) at the Hadley Centre.  Partnership with the Met Office allow me to consider the impacts of tropospheric O3 on crop production, land biogeochemistry and biophysics in an Earth System context, in a fully consistent manner. A major focus of this research will be to further develop and apply JULES-crop to include O3 impacts on crops. JULES-crop will be extensively evaluated against the Soybean Free-Air-Concentration-Enrichment experiment (http://soyface.illinois.edu/ ). JULES-crop will be applied in a coupled ESM to quantify feedbacks between coupled climate-crops and atmospheric chemistry. The project will thus help to build a state-of-the-art impact assessment model, and contribute to a more complete understanding of the impacts of climate change on food production.

Supervisory Team

This is a NERC CASE studentship between the University of Exeter (Prof. Stephen Sitch, Prof. Peter Cox) and Met Office Hadley Centre (Dr Jemma Gornall and Dr Andy Wiltshire).

Prof. Stephen Sitch

Stephen built the Lund-Potsdam-Jena Dynamic Global Vegetation Model (LPJ-DGVM), which builds upon the groups earlier models from the BIOME family. Stephen worked at the UK Met Office Hadley Centre on the interactions between land ecosystems, climate and atmospheric chemistry and is actively involved in the further development of the Joint UK Land Environment Simulator (JULES) and the Hadley Centre Earth System model (HadGEM2-ES). He is currently the JULES theme leader of Vegetation Dynamics and Disturbance.

Prof. Peter Cox

Professor of Climate System Dynamics within Mathematics and Computer Science at the University of Exeter. Theme Leader for Climate Change & Sustainable Futures. Until September 2006, Prof Cox was the Science Director - Climate Change at the Centre for Ecology and Hydrology, and prior to that he was at the Hadley Centre for Climate prediction and Research (1990-2004).

Dr Jemma Gornall and Dr Andy Wiltshire

Climate Impacts Scientist at The Met Office  

Wider Research Interests

Authored Publications/Reports

N. Barsoum, Lauren Fuller, Francis Ashwood, Katy Reed, Anne-Sophie Bonnet-Lebrun, Felix Leung (21st October 2013) Ground-dwelling spider (Araneae) and carabid beetle (Coleoptera: Carabidae) community assemblages in mixed and monoculture stands of oak (Quercus robur L./Quercus petraea (Matt.) Liebl.) and Scots pine (Pinus sylvestris L.), Forest Ecology and Management , http://dx.doi.org/10.1016/j.foreco.2013.08.063