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A method for applying fluvial geomorphology in support of catchment-scale river restoration planning

A method for applying fluvial geomorphology in support of catchment-scale river restoration planning
A method for applying fluvial geomorphology in support of catchment-scale river restoration planning
1. This paper reports on an extension to the use of Fluvial Audit survey to include a subjective and adaptive multi-criteria assessment (MCA) process that integrates scientific literature and observational data to develop three reach-scale indices of: (a) channel modification; (b) channel function (sediment store or source); and (c) naturalness. These indices are nested within an overall conceptual model of channel evolution and used to underpin catchment scale river restoration. 2. The approach is described and applied to a small groundwater dominated river in the UK. The results show that over 48% of the total main river was in a degraded state relative to a conceptual model of a natural reference state. Only 23% of the river was in a near-natural state. 3. MCA classifications were translated into a set of management actions necessary to return each reach to a near-natural condition. These are described. 4. The method offers a transparent decision support for stakeholders that can incorporate differing scientific evidence. The use of MCA enables flexibility in terms of the relative importance of scores and weights placed upon factors in the final classification. This makes the approach amenable to stakeholder and public consultation.
river restoration, multi-criteria analysis, fluvial audit
1052-7613
506-519
Sear, David
ccd892ab-a93d-4073-a11c-b8bca42ecfd3
Newson, Malcolm
5eef297c-d32a-4667-9a77-92d63004de00
Hill, Christopher
8b101c57-b1cf-4c65-af58-7adb48e0183b
Old, Jo
5b8f4bd5-6c64-4725-9f22-d69adc27ee47
Branson, Julia
3d895eb3-3fdb-444a-aaaf-454bdec25e0f
Sear, David
ccd892ab-a93d-4073-a11c-b8bca42ecfd3
Newson, Malcolm
5eef297c-d32a-4667-9a77-92d63004de00
Hill, Christopher
8b101c57-b1cf-4c65-af58-7adb48e0183b
Old, Jo
5b8f4bd5-6c64-4725-9f22-d69adc27ee47
Branson, Julia
3d895eb3-3fdb-444a-aaaf-454bdec25e0f

Sear, David, Newson, Malcolm, Hill, Christopher, Old, Jo and Branson, Julia (2009) A method for applying fluvial geomorphology in support of catchment-scale river restoration planning. Aquatic Conservation: Marine and Freshwater Ecosystems, 19 (5), 506-519. (doi:10.1002/aqc.1022).

Record type: Article

Abstract

1. This paper reports on an extension to the use of Fluvial Audit survey to include a subjective and adaptive multi-criteria assessment (MCA) process that integrates scientific literature and observational data to develop three reach-scale indices of: (a) channel modification; (b) channel function (sediment store or source); and (c) naturalness. These indices are nested within an overall conceptual model of channel evolution and used to underpin catchment scale river restoration. 2. The approach is described and applied to a small groundwater dominated river in the UK. The results show that over 48% of the total main river was in a degraded state relative to a conceptual model of a natural reference state. Only 23% of the river was in a near-natural state. 3. MCA classifications were translated into a set of management actions necessary to return each reach to a near-natural condition. These are described. 4. The method offers a transparent decision support for stakeholders that can incorporate differing scientific evidence. The use of MCA enables flexibility in terms of the relative importance of scores and weights placed upon factors in the final classification. This makes the approach amenable to stakeholder and public consultation.

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More information

Published date: 13 February 2009
Keywords: river restoration, multi-criteria analysis, fluvial audit

Identifiers

Local EPrints ID: 66705
URI: https://eprints.soton.ac.uk/id/eprint/66705
ISSN: 1052-7613
PURE UUID: d8da4309-1b37-4835-9b83-073ce05ea016
ORCID for David Sear: ORCID iD orcid.org/0000-0003-0191-6179

Catalogue record

Date deposited: 13 Jul 2009
Last modified: 19 Jul 2017 00:22

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Contributors

Author: David Sear ORCID iD
Author: Malcolm Newson
Author: Jo Old
Author: Julia Branson

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