The use of ecological information in the selection of quality objectives for river conservation and restoration in Flanders (Belgium)
Keywords:
Ecological evaluation, Watercourses, Water catchments, River restoration, Policy maps, Nature conservationAbstract
Due to the intensive use of freshwater resources, the ecological quality of catchments and watercourses in Flanders has been considerably lowered. Watercourses with natural stream characteristics and/or vulnerable species are rare and are quite often isolated headwaters. To restore the natural variety of river types and vulnerable species within Flanders and to restore the network within the catchments, there is an urgent need for river restoration programmes. To work efficiently, priority levels for catchment areas and quality objectives for watercourses should be designated. Our task was to develop a policy map based on objective ecological knowledge, taking into account the legal land designation and nature conservation.
Based on a large field survey, which consisted of gathering ecological information of watercourses throughout Flanders, a typology of rivers with reference framework was devised. Secondly, a priority map at a catchment level for integrated water management planning was developed. Three priority levels were distinguished based on the current ecological quality, the (legal) land designation, and the occurring river types within each catchment area. Thirdly, quality objectives were assigned to the priority zone watercourses. Four classes are selected: class I, in which nature conservation is the principal objective; class II, in which nature conservation should become the principal objective; class III, where nature conservation is an important subsidiary function; and class IV, in which most watercourses have a connecting function allowing migration of vulnerable species. The goals for the four classes were linked to different quality requirements.
The methodology developed for construction of a priority map and for assignment of water quality objectives to priority watercourses is explained in detail. An ecological evaluation of the sub-catchments of the river Nete and the river Dyle is used to discuss the selection of priority zones. Five sub-catchments are described in more detail to illustrate the assignment of quality objectives to priority zone watercourses.
References
Andersen, M.M., Rigét, F.F. and Sparholt, H. 1984. A modification of the Trent index for use in Denmark. Water Research, 18: 145–151.
Anonymous. 1975. Indicatief Meerjarenprogramma 1975–1979, The Netherlands: Ministerie van Verkeer en Waterstaat, 's Gravenhage.
Anonymous. 1987. Our Common Future, Oxford: World Commission on Environment and Development, Oxford University Press.
Chutter, F. 1972. An empirical index of the quality of water in South African streams and rivers. Water Research, 6: 19–30.
De Blust, G., Paelinckx, D. and Kuijken, E. 1994. “Up-to-date information on nature quality for environmental management”. In Ecosystem Classification for Environmental Management in Flanders, Edited by: Klijn, F. 223–223. The Netherlands: Kluwer Academic. In
De Blust, G., Paelinckx, D. and Kuijken, E. 1995. The green main structure for Flanders. The development and implementation of an ecological network. Landschap, 3: 89–98.
De Pauw, N. and Vanhooren, G. 1983. Method for biological quality assessment of watercourses in Belgium. Hydrobiologia, 100: 153–168.
Ghetti, P.F. 1986. Etude bibliographique des méthodes biologique d' évaluation de la qualité des eaux de surface continentales. Agences de l'Eau (1993). Environment. Etude Inter Agence, 35 In
Janssen, R. 1992. Multiobjective Decision Support for Environmental Management, 55–62. The Netherlands: Kluwer Academic.
Johnson, S.P. and Corcelle, G. 1990. “The Environmental Policy of the European Communities”. In International Environmental Law and Policy Series, UK: Graham & Trotman.
Karr, J.R. 1991. Biological integrity: a long-neglected aspect of water resource management. Ecological Applications, 1: 66–84.
Karr, J.R. and Chu, E.W. 1999. Restoring Life in Running Waters: Better Biological Monitoring, Washington: Island Press.
Hill, M.O. 1979. “Twinspan, a Fortran program for arranging multivariate data in an ordered two-way table by classification of the individuals and the attributes”. In Ecology and Systematics, Ithaca, NY: Cornell University.
Peeters, E.T.H.M., Gardeniers, J.J.P. and Tolkamp, H.H. 1994. New methods to assess the ecological status of surface waters in the Netherlands: Part I: Running waters. International Vereinigung fur theoretische und Angewandte Limnologie Verhandlungen, 25.3: 1914–1916.
Schneiders, A., Wils, C. and Verheyen, R.F. 1995. “Finalisering: Onderzoek naar de verspreiding en de typologie van ecologisch waardevolle waterlopen in het Vlaamse Gewest”. In Report for Ministry of the Flemish government, 74–74. Belgium: University of Antwerp.
Schneiders, A., Wils, C. and Verheyen, R.F. 1997. “The use of ecological information in the selection of priority zones for river conservation and restoration in Flanders”. In Freshwater Quality: Defining the Indefinable?, Edited by: Boon, P.J. and Howell, D.L. 513–513. Edinburgh, , UK: The Scottish Natural Heritage, The Stationary Office, South Gyle Crescent. In
Schneiders, A. and Verheyen, R.F. 1998. A concept of integrated water management illustrated for Flanders (Belgium). Ecosystem Health, 4: 256–263.
Tuffery, G. and Verneaux, J. 1968. Méthode de determination de la qualité biologiques des eaux courantes, France: Ministtère de l’Agriculture.
Trihadiningrum, Y., De Pauw, N., Tjondronegoro, I. and Verheyen, R.F. 1996. “Use of macroinvertebrates for water quality assessment of the Blawi River (East Java, Indonesia)”. In Perspectives in Tropical Limnology, Edited by: Schiemer, F. and Boland, K.T. 199–199. Amsterdam: SPB Academic. In
Vannote, R.L., Minshall, G.W., Cummins, K.W., Sedell, J.R. and Cushing, C.E. 1980. The river continuum concept. Can. J. Fish. Aquat. Sci., 37: 130–137.
Werritty, A. 1997. “Enhancing the quality of freshwater resources: the role of integrated catchment management”. In Freshwater Quality: Defining the Indefinable?, Edited by: Boon, P.J. and Howell, D.L. 489–489. Edinburgh, , UK: The Scottish Natural Heritage, The Stationary Office, South Gyle Crescent. In
Wils, C., Schneiders, A., Bervoets, L., Nagels, A., Weiss, L. and Verheyen, R.F. 1994. Assessment of the ecological value of rivers in Flanders (Belgium). Water Sci. Tech., 30(10): 37–47.
Woodiwis, F.S. 1964. The biological system of stream classification used by the River Trent Board. Chemistry and Industry, 14: 443–447.
Wright, J.F., Furse, M.T. and Armitage, P.D. 1994. “Use of macro invertebrate communities to detect environmental stress in running waters”. In Water Quality and Stress Indicators in Marine and Freshwater Ecosystems: Linking levels of Organisation (Individuals, Populations and Communities), Edited by: Sutcliff, D.W. 15–15. Ambleside: Freshwater Biological Association. In
Wright, J.F., Moss, D., Clarke, R.T. and Furse, M.T. 1997. “Biological Assessment of river quality using the new version of RIVPACS (RIVPACS III)”. In Freshwater Quality: Defining the Indefinable?, Edited by: Boon, P.J. and Howell, D.L. 102–102. Edinburgh, , UK: Scottish Natural Heritage, The Stationary Office, South Gyle Crescent. In
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