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Titolo:
The importance of different scale processes for the restoration of floodplain woodlands
Autore:
Hughes, FMR; Adams, WM; Muller, E; Nilsson, C; Richards, KS; Barsoum, N; Decamps, H; Foussadier, R; Girel, J; Guilloy, H; Hayes, A; Johansson, M; Lambs, L; Pautou, G; Peiry, JL; Perrow, M; Vautier, F; Winfield, M;
Indirizzi:
Univ Cambridge, Dept Geog, Cambridge CB2 3EN, England Univ Cambridge Cambridge England CB2 3EN eog, Cambridge CB2 3EN, England Univ Toulouse 3, CNRS, CESAC, F-31055 Toulouse, France Univ Toulouse 3 Toulouse France F-31055 CESAC, F-31055 Toulouse, France Univ Grenoble 1, Ctr Biol Alpine, F-38041 Grenoble, France Univ Grenoble 1 Grenoble France F-38041 Alpine, F-38041 Grenoble, France Umea Univ, Dept Ecol & Environm Sci, Landscape Ecol Grp, SE-90187 Umea, Sweden Umea Univ Umea Sweden SE-90187 Landscape Ecol Grp, SE-90187 Umea, Sweden Univ Clermont Ferrand, Lab Geog Phys, F-63057 Clermont Ferrand, France Univ Clermont Ferrand Clermont Ferrand France F-63057 nt Ferrand, France Univ E Anglia, Sch Biol Sci, Norwich NR4 1UA, Norfolk, England Univ E Anglia Norwich Norfolk England NR4 1UA h NR4 1UA, Norfolk, England Univ Cambridge, Dept Plant Sci, Cambridge CB2 3EN, England Univ CambridgeCambridge England CB2 3EN Sci, Cambridge CB2 3EN, England
Titolo Testata:
REGULATED RIVERS-RESEARCH & MANAGEMENT
fascicolo: 4-5, volume: 17, anno: 2001,
pagine: 325 - 345
SICI:
0886-9375(200107/10)17:4-5<325:TIODSP>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
RIVER-MARGIN VEGETATION; RIPARIAN VEGETATION; MISSOURI RIVER; WATER-TABLE; ESTABLISHMENT; MONTANA; USA; BIOGEOMORPHOLOGY; REQUIREMENTS; BIODIVERSITY;
Keywords:
environmental flows; floodplain woodland; regeneration; river management; river restoration;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
84
Recensione:
Indirizzi per estratti:
Indirizzo: Hughes, FMR Univ Cambridge, Dept Geog, Downing Pl, Cambridge CB2 3EN, England Univ Cambridge Downing Pl Cambridge England CB2 3EN , England
Citazione:
F.M.R. Hughes et al., "The importance of different scale processes for the restoration of floodplain woodlands", REGUL RIVER, 17(4-5), 2001, pp. 325-345

Abstract

The restoration of floodplain woodlands demands an understanding of the linkages between process, form and past management history at both a local and catchment scale. Site and reach scale processes that influence the species composition of floodplain woodland species are described with a particular focus on the relationships between hydrological and sediment inputs to floodplains and the regeneration response by tree species. The importance of integrating natural science knowledge gained at the site reach scale with decisions taken at the catchment scale on water allocation priorities is then discussed. Research was carried out on the River Ore in Sweden, The River Ouse in theUnited Kingdom and the River Is re and River Garonne in France. Research results at the site and reach scale allow broad definition of ideal conditions for the regeneration and growth of floodplain tree species and the flowsthat provide them: (1) channel movement has to occur for the creation of sedimentation sites required for the regeneration of early successional species and the flows that provide them; (2) flooding events should occur periodically to cause both channel movement and recharge floodplain water tables; (3) water table decline rates following a flood event must be slow enoughthat seedling roots can maintain contact with the retreating water front; (4) unseasonal flood events can cause high mortality of seedlings and prevent successful regeneration in any season. Some of the requirements for the restoration of floodplain woodlands can be delivered through site and reachscale restoration projects with reasonably predictable ecological outcomes. A more holistic approach to the provision of regeneration sites for floodplain woodlands would also include water allocation decisions targeted at providing flow conditions which could restore geomorphological processes. However, it is difficult to predict ecosystem responses to catchment scale flow allocation measures and, therefore, in the intensively managed river corridors of Western Europe, river restoration initiatives tend to be restricted to the site and reach scale. Copyright (C) 2001 John Wiley & Sons, Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 15:52:10