Sarah Tholin
University of Birmingham
Project
Greenhouse gas fluxes from temperate forest soil following eight years of free air CO2 enrichment at BIFoR-FACE
Supervisors
- Prof Sami Ullah, University of Birmingham
- Dr Liz Hamilton, University of Birmingham
- Dr Elena Vanguelova, Forest Research (CASE partner)
- Dr Felicity Roos, National Trust
- Prof Niall McNamara, UK Centre for Ecology and Hydrology
PhD Summary
Soils are a major source of greenhouse gases on a global scale, with emissions resulting from natural processes such as microbial and root respiration, contributing to CO2 emissions, as well as other microbial processes contributing to CH4 and N2O emissions. However, anthropogenic emissions can disrupt these natural processes, leading to imbalances in greenhouse gas fluxes and influencing the trajectory of climate change. The aim of the project is to investigate the effects of atmospheric CO2 enrichment on greenhouse gas fluxes from soil, within a mature oak forest. These measurements will build on data that has already been gathered over the last eight years of CO2 fumigation at BIFoR-FACE. The research will also involve partitioning of heterotrophic and autotrophic soil respiration, as well as developing a new method for measuring root respiration in situ. Root samples taken after in situ root respiration measurements will be analysed for mycorrhizal fungal content, to gain insight into their role in soil respiration.
Previous activity
I completed a BSc in Wildlife Biology at Manchester Metropolitan University and an MSc in Plant Science at Lund University, where I developed a passion for soil science research. My master’s thesis investigated the influence of ericoid mycorrhizal fungi on soil carbon storage.
Why did you choose doctoral research?
I enjoy the process of scientific research, from fieldwork to the presentation of findings. I felt that doctoral research presented the best route for engaging in my research interests, as well as offering the chance to develop my scientific skills.
Why did you choose CENTA?
CENTA offered me the opportunity to work at a world-leading research facility, as well as providing a broad range of training and introducing me to a cohort of PhD students who share the same passion for scientific research.
Future plans
I would like to continue working within climate change research, either in industry or in academia. Completing a PhD will offer me the necessary knowledge and skills to pursue this career path.