Evaluation of knowledge gained from the National Demonstration Test Catchment

Old, G. ORCID:; Hutchins, M. ORCID:; Miller, J. ORCID:; Acreman, M.; Bowes, M. ORCID:; Redhead, J. ORCID:; Trill, E.; Blackstock, K.; Kuhfuss, L.. 2020 Evaluation of knowledge gained from the National Demonstration Test Catchment. London, Department for Environment Food & Rural Affairs, 181pp. (Final Report WT15115)

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The Demonstration Test Catchment (DTC) project was commissioned in 2009 through Defra’s Agriculture and Water Quality team 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 mitigation measures’. The project was established as a research platform in four catchments (Eden in Cumbria, Wensum in Norfolk, Avon in Hampshire and the Tamar in Devon/Cornwall) where water quality was known to be compromised by diffuse pollution. These catchments provide good national coverage and representativeness of different physical and socio-economic factors relevant to diffuse pollution. The primary aim of this review is to evaluate the knowledge gained, on intervention effectiveness for water quality and farmer engagement, from the DTC programme by undertaking a Rapid Evidence Assessment (REA) of the available, published evidence. Secondary aims were included to evaluate the broader physical and social science methodologies that were adopted and the approach for generalising the findings.

Item Type: Publication - Report
UKCEH and CEH Sections/Science Areas: Biodiversity (Science Area 2017-)
Hydro-climate Risks (Science Area 2017-)
Pollution (Science Area 2017-)
Water Resources (Science Area 2017-)
Funders/Sponsors: Department for Environment, Food & Rural Affairs
Additional Information. Not used in RCUK Gateway to Research.: Supplementary and other material can be accessed via the Official URL link.
NORA Subject Terms: Ecology and Environment
Agriculture and Soil Science
Date made live: 22 Dec 2020 17:15 +0 (UTC)

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