Open rivers: Barrier removal planning and the restoration of free-flowing rivers
Restoration of unobstructed, free-flowing sections of river can provide considerable environmental and ecological benefits. It removes impediments to aquatic species dispersal and improves flow, sediment and nutrient transport. This, in turn, can serve to improve environmental quality and abundance...
| Publicado en: | Journal of Environmental Management Vol. 92; no. 12; pp. 3112 - 3121 |
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| Autor principal: | |
| Formato: | Case Study |
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Academic Press Inc.
Dec2011
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=65515404&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 65515404 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: Dec2011 vid: 92 iid: 12 pid: 735 pub: Academic Press Inc. artinfo: ui: 65515404 10.1016/j.jenvman.2011.07.027 ppf: 3112 ppct: 9 formats: tig: atl: Open rivers: Barrier removal planning and the restoration of free-flowing rivers aug: au: O’Hanley, Jesse R. affil: Kent Business School, University of Kent, Canterbury, Kent CT2 7PE, United Kingdom su: Pike River Watershed (Racine County & Kenosha County, Wis.) Wisconsin Hydraulic structures & the environment Regulation of rivers Stream restoration Animal dispersal Fish migration sug: subj: Pike River Watershed (Racine County & Kenosha County, Wis.) Wisconsin Hydraulic structures & the environment Regulation of rivers Stream restoration Animal dispersal Fish migration keyword: Barrier removal Culverts Dams Fish passage barriers Flow barriers Optimization River restoration Barrier removal Culverts Dams Fish passage barriers Flow barriers Optimization River restoration ab: Restoration of unobstructed, free-flowing sections of river can provide considerable environmental and ecological benefits. It removes impediments to aquatic species dispersal and improves flow, sediment and nutrient transport. This, in turn, can serve to improve environmental quality and abundance of native species, not only within the river channel itself, but also within adjacent riparian, floodplain and coastal areas. In support of this effort, a generic optimization model is presented in this paper for prioritizing the removal of problematic structures, which adversely affect aquatic species dispersal and river hydrology. Its purpose is to maximize, subject to a budget, the size of the single largest section of connected river unimpeded by artificial flow and dispersal barriers. The model is designed to improve, in a holistic way, the connectivity and environmental status of a river network. Furthermore, unlike most previous prioritization methods, it is particularly well suited to meet the needs of potamodromous fish species and other resident aquatic organisms, which regularly disperse among different parts of a river network. After presenting an initial mixed integer linear programming formulation of the model, more scalable reformulation and solution techniques are investigated for solving large, realistic-sized instances. Results from a case-study of the Pike River Watershed, located in northeast Wisconsin, USA, demonstrate the computational efficiency of the proposed model as well as highlight some general insights about systematic barrier removal planning. pubtype: Academic Journal doctype: Case Study src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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