Agricultural intensification, greatly accelerated as a result of the EU Common Agricultural Policy (CAP), has led to rastic reductions in the populations of many wild plant and animal species that used to be characteristic of farmland. In 1992, the EU provided the member states with its Agri-environment Regulation 2078/92 to help member states reverse these developments by means of agri-environment schemes. The question is: will the implementation of these schemes be sufficient to restore the biological diversity on farmland? Most studies that have examined the effectiveness of agri-environment schemes have focussed on farmland birds in Great Britain and The Netherlands. So far, the positive effects appear to be limited. Continuous evaluation and adaptation of these schemes is needed to enable the biodiversity on farmland to recover from the EU's former policy.
Berendse, F., Chamberlain, D., Kleijn, D., & Schekkerman, H. (2004). Declining Biodiversity in Agricultural Landscapes and the Effectiveness of Agri-environment Schemes. Ambio, 33(8), 499-502. https://doi.org/10.1579/0044-7447-33.8.499