Title: Issues and System Understanding in dredging management, Review of existing practices in dredging management of partner countries 
Resource Type: document --> technical publication --> report 
Country: EU Projects 
Year: 2007 
Availability: Report 6.1, Theme 6, Sustainable Dredging Strategies, 4 April 2007 
Author 1/Producer: New! Delta Consortium 
Author / Producer Type: EC Project 
Report / download web link (=direct link): http://www.newdelta.org/temp/241334406/NEW!_Delta_Theme_6__0 ...  
Format (e.g. PDF): PDF 
Size: (e.g. 20mb) 4.64 
EUGRIS Keyword(s): Sediments
Short description: This report gives a review of the existing practices in dredging management for the example estuaries in the partner countries. Discussions led to a review of the issues that need to be considered when assessing the potential impacts of dredging activities in estuaries with respect to European legislation. It is recognised that estuaries are highly dynamic systems. As a result, a conceptual understanding of the physical processes and geomorphologic dynamics of the system is needed. This must take into account not only the natural variability, historical developments and ongoing trends, but also the effects of all uses and users, of which dredging is only one. The significance of any effects of dredging should be based on the understanding of the particular estuary system. However, it must be clear that this understanding is still quite limited and the assessment of the effects must rely, among other, on expertise. 
Long description: The morphology of an estuary is continuously changing, adjusting to the forcing processes which themselves are also changing. No estuary is therefore stable and habitats and the ecological functioning of the estuary will continuously change from its present status even if man did nothing further. This implies the need for a detailed conceptual understanding of the estuary system in question. Only such an understanding can lead to proper assessment of the effects of existing and future dredging activities. Dredging is only one of the activities in an estuary. For any estuary there should be a holistic management plan, including that required by the European Directives, which takes into account the interests and effects of all uses and users of the estuary in an integrated way. Because of the uncertainties, management must rely on historical analysis of past impacts and on a comprehensive monitoring of the river response to dredging. 
Link to Project(s): NEW! Delta NEW! Delta: Ports and Nature, Striking a New Balance
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 16/04/2007

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