The Demonstration Test Catchments (DTC) project was a nationally coordinated programme of research that ran from 2009 - 2019 funded by Defra, the Environment Agency (EA) and Welsh Assembly Government working in three river catchments – the Wensum in Norfolk plus the Eden (Cumbria) and Avon (Hampshire).

The overall objective of the project was to provide evidence to test the hypothesis that it is possible to cost effectively reduce the impact of agricultural diffuse water pollution on ecological function while maintaining food security through the implementation of multiple on-farm measures across whole river catchments using local expertise to solve local problems. Although the main research programme has now concluded, there are a number of spin-off follow-on research projects still in progress. You can [READ MORE] about the original DTC project and particularly about the work in the River Wensum catchment, and the resulting research findings throughout this website. A summary Evidence Compendium provides the conclusions from the main 2009 - 2019 work programme.


What's in the news?

  • March 2020: Publication of DTC Programme Evidence Compendium: Defra publishes the key findings from the Demonstration Test Catchment programme in an Evidence Compendium, designed to make results of the work accessible to a wide audience. Compilation of the Evidence Compendium was undertaken by Dr Emilie Vrain of the Wensum DTC team with contribution from all DTC partners.
DTC Programme Evidence Compendium cover page

To read more about the activities and events undertaken as part of the Wensum DTC research see our News page.

View Wensum DTC Google Earth project
Wensum Google Earth project
Explore the Wensum catchment from the comfort of your own computer using this 'Google Earth' project developed by GIS expert Gilla Sunnenberg. [Click here] to view the project.
Out and about
Mill on the Wensum
Three arched bridge
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