CaBALondon 08 Di Hammond, Affinity Water
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Details of Affinity Water's partnership working with volunteers to monitor baseline and hydro-ecological response to abstraction and river restoration.
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CaBALondon 08 Di Hammond, Affinity Water
- 1. Monitoring to determine the hydro-ecology response to abstraction and river restoration Dr Di Hammond – Affinity Water
- 2. 2 footer Content • Sustainability Reductions • Channel forms • Monitoring data • Example of a monitoring programmme • Riverfly monitoring – additional aspects
- 3. Sustainability Reduction • Response to National Environment Programme • Working with EA to identify & evaluate damaging abstractions. • Reducing abstraction in Central by 42Ml/d (approx 5% of our total GW abstraction) in AMP6 (2015-20) • Further reductions in AMP7 of 17.8Ml/d • 13 sources affected in 7 river catchments • Mimram, Beane, Gade, Misbourne, Ver, Hughenden Stream, Upper Lee 3 footer
- 4. Channel Form
- 5. Chalk Streams in Trouble
- 6. Reach types on the River Mimram 6 footer
- 7. Monitoring Data • What we are monitoring • Flows • Macroinvertebrates • Macrophytes • Morphological Rapid Assessments • Groundwater Levels • Fixed Point Photography • PhD – Fish utilisation of different habitats? • Other data we have includes • River Habitat Surveys • Fluvial Audits • LiDAR • Riverfly • Fish7 footer
- 8. Monitoring Programme for the River Mimram 8
- 9. Catchment Approach for the Mimram • Start of baseline monitoring (2014) • Sustainability reduction – Welwyn PS switched off • The current licensed abstraction is 9.09Ml/d • The licence will reduced to 5.6Ml/d (average) from April 2015 and the licence will be revoked from 1st April 2018. • Monitoring will continue through to March 2020 • River restoration (in channel improvement e.g. channel narrowing, introducing woody material, re-meandering) • Analysis of the monitoring data to determine what improvement in habitat/flow/morphology/aquatic species numbers and diversity has occurred • As a result of sustainability reductions • As a result of river restoration works 9
- 10. LIFE Scores at Restored Site 10 footer River restoration
- 11. Riverfly Monitoring – Citizen Science 11 footer
Notas del editor
- Classic chalk stream is shallow channel, gravel bed, in channel plants and marginal vegeation