Negotiating river restoration: The role of divergent reframing in environmental decision-making

Abstract

Publisher's copyright statement: NOTICE: this is the author's version of a work that was accepted for publication in Geoforum. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reected in this document. Changes may have been made to this work since it was submitted for publication. A denitive version was subsequently published in Geoforum, 47, June 2013, 10.1016/j.geoforum.2013.01.008. Additional information:Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

Use of spatially distributed time-integrated sediment sampling networks and distributed fine sediment modelling to inform catchment management

“…This species is one of the most critically endangered bi-valves in the world, with siltation and excessive suspended sediment concentrations being attributed to causing their decline (Walling et al, 2001). This has led to local conservation and restoration efforts being undertaken by the competent authorities over the last 20 years (Arnold-Forster, 2002;Emery, 2010;Emery et al, 2013;. …”

Reduced fine sediment flux and channel change in response to the managed diversion of an upland river channel

“…The presence of artificial drains (or grips) on Glaisdale Moor alter the runoff regime, and the practise of managing the dry heath may result in bare soil exposure, increasing erosion risk. On lower-lying farm land, reported stocking densities of up to 1.51 livestock units per hectare creates diffuse pollution pressures within the catchment (Emery, 2010).…”

“…However, siltation and excessive suspended sediment concentrations (SSCs) have been attributed to causing their decline. This has led to local conservation and restoration efforts being driven by the National Park over the last 20 years (Arnold-Forster, 2002;Emery, 2010 Previous research has highlighted the Glaisdale subcatchment as a key contributor to fine sediment fluxes in the Esk catchment (Bracken and Warburton, 2005). Through local surveys, a critical source area of fine sediment supply to the beck was identified (Warburton, 2007).…”

“…3). Emery et al (2013) provide a thorough discussion of the process involved in reaching this consensus. In October 2007, engineering work to modify the course of Glaisdale Beck commenced.…”

“…MATLAB scripts used to produce Figs. 5-7 and 9-10 can be obtained at https://github.com/CatchmentSci/ Glaisdale-Beck-diversion-scheme (Perks, 2016).…”