Policy impact assessment

The agricultural and horticultural industry operates within a complex system, in which a wide range of operational and environmental factors co-exist and interact with each other, such that even seemingly minor changes can have far reaching effects. Consequently, all changes must be assessed with great care to ensure that they are both liable to result in the required benefits (which are generally indirect benefits), and kept under constant review in light of our current scientific understanding.

AERU is at the forefront of agri-environmental policy impact assessment, and has been involved in a number of projects that have took a holistic approach to the determination the impacts (both positive and negative) of a wide range of initiatives that have sought to induce environmental improvements. This includes those related to non-point source water pollution (principally by nitrogen), greenhouse gas emissions and biodiversity. Key projects include:

For further information on our work in this area contact us at

University of Hertfordshire
University of Hertfordshire, 2014.