Dr John Tzilivakis BSc MSc PhD PIEMA MIAP
Reader in Agricultural and Environmental Systems

Tel.: +44 (0)1707 285259

John has been a member of AERU staff since 1995. During that time he has been involved in numerous projects related to agriculture, the environment and sustainability in the UK and across Europe. His work covers a diversity of topics including agroecology; ecosystem services; biodiversity; pesticides; nutrients; and GHG emissions, carbon sequestration and climate change; and is very applied, covering agri-environmental science and management, development, and application of environmental indicators; policy development and evaluation in the UK and EU; food assurance schemes and ecolabelling; and the development of tools and services including software, websites, and databases, to aid knowledge transfer and increase impact. His work often involves taking a holistic systems perspective and integrating environmental, economic and social assessments which is essential for developing sustainable agricultural and land management systems.


John has an BSc in Agroforestry from the University of Wales, Bangor, an MSc in Ecological Design from the Robert Gordon University, Aberdeen, a PhD from the University of Hertfordshire, is an IEMA (Institute of Environmental Management and Assessment) Practitioner, and is a Member of the Institution of Analysts and Programmers.

Previous employment

Before joining AERU in 1995 John was a Researcher at the World Resource Foundation now known as Residua. There he worked on projects related to sustainable waste management. These included the use of Life Cycle Assessment (LCA) in waste management and the public perception issues.

Current projects

Recently completed projects

Recent publications

  • Rainford, J, Tzilivakis, J., Garthwaite, D., Jones, G. & Lewis, K.A. (2023). Finalising a Pesticide Load Indicator for the UK: Phase 4 Report. Prepared for the Department for Environment, Food and Rural Affairs (Defra), UK, for project PC0116, by FERA Science Ltd and the Agriculture and Environment Research Unit (AERU), University of Hertfordshire, UK. [Download].
  • Mondière, A., Tzilivakis, J., Warner, D.J., van der Werf, H.M.G., Farruggia, A., Glinec, O. & Corson, M.S (2022). An improved indicator framework to assess and optimise ecosystem services provided by permanent grasslands. Ecological Indicators, 146, 109765. DOI.
  • Tzilivakis, J., Warner, D., Green, A., & Lewis, K.A. (2021). A broad-scale spatial analysis of the environmental benefits of fertiliser closed periods implemented under the Nitrates Directive in Europe. Journal of Environmental Management, 299: 113674. DOI.
  • Lewis, K., Rainford, J., Tzilivakis, J., & Garthwaite, D. (2021). Application of the Danish Pesticide Load Indicator to UK arable agriculture. J Environ Qual.: 1-13. DOI.
  • Tzilivakis, J., Green, A., Warner, D.J. & Lewis, K.A. (2020). Identification of approaches and measures in action programmes under Directive 91/676/EEC. Final report. Report prepared for Directorate-General Environment, European Commission, for project ENV.D.1/SER/2018/0017 by the Agriculture and Environment Research Unit (AERU), University of Hertfordshire, United Kingdom. [Download].

Dr. John Tzilivakis's extended publications list.

Link to UH profile page

University of Hertfordshire
University of Hertfordshire, 2023.