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dc.contributor.authorMcMahon, Joseph M
dc.contributor.authorOlley, Jon M
dc.contributor.authorBrooks, Andrew P
dc.contributor.authorSmart, James CR
dc.contributor.authorStewart-Koster, Ben
dc.contributor.authorVenables, William N
dc.contributor.authorCurwen, Graeme
dc.contributor.authorKemp, Justine
dc.contributor.authorStewart, Morag
dc.contributor.authorSaxton, Nina
dc.contributor.authorHaddadchi, Arman
dc.contributor.authorStout, Justin C
dc.date.accessioned2020-01-17T04:30:29Z
dc.date.available2020-01-17T04:30:29Z
dc.date.issued2020
dc.identifier.issn0048-9697
dc.identifier.doi10.1016/j.scitotenv.2019.135904
dc.identifier.urihttp://hdl.handle.net/10072/390075
dc.description.abstractIt is a substantial challenge to quantify the benefits which ecosystems provide to water supply at scales large enough to support policy making. This study tested the hypothesis that vegetation could reduce riverbank erosion, and therefore contribute to reducing turbidity and the cost of water supply, during a large magnitude flood along a 62 km riparian corridor where land cover differed substantially from natural conditions. Several lines of evidence were used to establish the benefits that vegetation provided to reducing eleven riverbank erosion processes over 1688 observations. The data and analyses confirmed that vegetation significantly reduced the magnitude of the riverbank erosion process which was the largest contributor to total erosion volume. For this process, a 1% increase in canopy cover of trees higher than five metres reduced erosion magnitude by between 2 and 3%. Results also indicate that riverbank erosion was likely to be affected by direct changes to the riparian corridor which influenced longitudinal coarse sediment connectivity. When comparing the impact of these direct changes on a relative basis, sand and gravel extraction was likely to be the dominant contributor to changed erosion rates. The locations where erosion rates had substantially increased were of limited spatial extent and in general substantial change in river form had not occurred. This suggests that the trajectory of river condition and increasing turbidity are potentially reversible if the drivers of river degradation are addressed through an ecosystem restoration policy.
dc.languageEnglish
dc.publisherElsevier BV
dc.relation.ispartofpagefrom135904:1
dc.relation.ispartofpageto135904:16
dc.relation.ispartofjournalScience of the Total Environment
dc.relation.ispartofvolume707
dc.subject.fieldofresearchEnvironmental Sciences
dc.subject.fieldofresearchcode05
dc.subject.keywordsDams
dc.subject.keywordsLight Detection and Ranging (LiDAR)
dc.subject.keywordsRiparian vegetation
dc.subject.keywordsRiverbank erosion
dc.subject.keywordsSediment mining
dc.titleVegetation and longitudinal coarse sediment connectivity affect the ability of ecosystem restoration to reduce riverbank erosion and turbidity in drinking water
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationMcMahon, JM; Olley, JM; Brooks, AP; Smart, JCR; Stewart-Koster, B; Venables, WN; Curwen, G; Kemp, J; Stewart, M; Saxton, N; Haddadchi, A; Stout, JC, Vegetation and longitudinal coarse sediment connectivity affect the ability of ecosystem restoration to reduce riverbank erosion and turbidity in drinking water, Science of the Total Environment, 2020, 707, pp. 135904:1-135904:16
dcterms.dateAccepted2019-12-01
dcterms.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.updated2020-01-06T04:17:51Z
dc.description.versionPost-print
gro.rights.copyright© 2020 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorMcMahon, Joe M.
gro.griffith.authorBrooks, Andrew P.
gro.griffith.authorSmart, Jim C.
gro.griffith.authorOlley, Jon M.
gro.griffith.authorStewart-Koster, Ben D.
gro.griffith.authorKemp, Justine
gro.griffith.authorCurwen, Graeme R.
gro.griffith.authorStout, Justin
gro.griffith.authorSaxton, Nina E.


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