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Meeting Net-Zero Carbon targets for UK Agriculture

Faculty of Environment

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Dr Guy Ziv , Prof Pippa Chapman No more applications being accepted Competition Funded PhD Project (Students Worldwide)

About the Project

Nearly 70% of UK land area and 50% of European Union (EU) land is used for agriculture. These landscapes have been shaped by centuries of large-scale human impacts through traditional or intensive land-use systems. Today’s agricultural landscapes, ‘representing the combined work of nature and man’ (as defined by UNESCO’s World Heritage Committee) are valued for their ecological, social and historic functions (Plieninger et al., 2013), (Hartel et al., 2014). However, the public goods provided by these agro-ecosystems and their related natural resources – including food, bioenergy, clean water, biodiversity, carbon storage and sequestration – are threatened by unsustainable land-use intensification, abandonment, and climate change. At the same time, climate action has ramped up across the world (albeit slowed down by the covid-19 outbreak) and the UK has committed to reaching Net Zero carbon emissions by 2050, including in the agricultural sector, which accounts for about 10% of the UK’s GHG emissions. Furthermore, following UK Brexit, the agricultural policy, and particularly the incentives, regulations and subsidies farmers get from public funding are dramatically changing. Thus, understanding the environmental impacts of farmers’ actions, in particular on carbon sequestration and subsequent storage in agricultural soils is of paramount importance.


This is an exciting and innovative project with the potential to make a big contribution to the agricultural sector and their ability to achieve ‘net-zero’ greenhouse gas (GHG) emissions by 2050. The project aim is to improve the evidence base on the impact of different agricultural practices (e.g. tillage, cover crops etc.) and semi-natural landscape features (e.g. hedgerows) on greenhouse-gas (GHG) balance and carbon sequestration. Specifically, depending on research interests, the studentship could address a combination of the following:
1. Quantitative meta-analysis/rapid-evidence review of the impact of common agricultural practices / landscape features on GHG fluxes, soil carbon, soil structure and other relevant soil properties that control GHG emissions (N2O as well as CO2) as well as their impact on crop yields and farm profit margins.
2. Use process-based soil/vegetation models (e.g. CENTURY, DayCent, DNDC) to understand how soil type and climate influence the impact of agricultural practices on GHG emissions, carbon sequestration potential and yield. the proximate controls of those impacts by soil type, climate etc.
3. Collect and analyse soil samples from agricultural fields managed under different agronomic and management conditions.

The PhD student will benefit from joining the Horizon 2020 BESTMAP ( project activities coordinated by Leeds. BESTMAP is a 4 year programme dedicated to improving policy impact assessment models for post-2020 Common Agricultural Policy (CAP).
Fit to NERC Science This project is aligned with the NERC terrestrial research area, in particular research areas on soil science, ecosystem-scale process and land use.

The student will work under the supervision of Prof. Guy Ziv within the Ecology and Global Change research cluster in the School of Geography and Prof. Pippa Chapman in the River Basins cluster in the School of Geography. The project provides a high-level of training in (i) rapid-evidence review/meta-analysis and data analysis; (ii) modelling of soil processes and (iii) design of field experiments, soil sampling and soil analysis. The student will be supported throughout the studentship by a comprehensive PGR skills training programme that follows the VITAE Research Development Framework and focuses on knowledge and intellectual abilities; personal effectiveness; research governance and organisation; and engagement, influence and impact. Training needs will be assessed at the beginning of the project and at key stages throughout the project and the student will be encouraged to participate in the numerous training and development course that are run within the university to support PGR students, including statistics training (e.g. R), academic writing skills, grant writing etc ( Supervision will involve regular meetings between all supervisors and further support of a research support group.

Student profile:

The student should have a keen interest in agriculture and its environmental impacts with a strong background in a physical geography, Earth sciences, plant sciences, environmental sciences or related discipline. Strong analytical/statistical/modelling skills are desirable but not essential, as full training will be provided during the PhD.

Funding Notes

We offer 3.5 years fully funded studentships including full tuition fees for all successful applicants, and stipend at the UKRI rate plus a training grant.


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