Changes in Dutch water management; Building with Nature Bregje van Wesenbeeck

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Presentation transcript:

Changes in Dutch water management; Building with Nature Bregje van Wesenbeeck

1000 AC 1250 AC 1750 AC 1953 AC 2010 AC

Rotterdam Antwerp Rotterdam Ghent Zeebrugge Antwerp Westerschelde Oosterschelde Haringvliet Volkerak/ Zoommeer Grevelingen Veerse Meer Cities HarboursDams Freshwater Estuarine gradient Salt lake Salt sea-arm

Consequences: Algal blooms Rijkswaterstaat

Consequences: erosion

Consequences: carrying capacity

Rotterdam Antwerp Rotterdam Ghent Zeebrugge Antwerp Westerschelde Oosterschelde Haringvliet Volkerak/ Zoommeer Grevelingen Veerse Meer Polluted sediment Connection loss Extreme eutrophication Cyanobacteria Connectivity Morphological unequilibrium Habitat loss Invasive species Bird problem Stratification Benthic C accumulation Oxygen problems Habitat loss Eutrophication / oxygen Polluted sediments Habitat loss - Dredging

source: AHN

nourish ?

Building with Nature Use plants and animals to fullfill water management functions ( complementary to traditional engineering solutions )

Building with nature -adds nature value -increases landscape attractiveness -is more sustainable -is adaptive -and reduces costs

Pilots

Approach and proces: collaborate WINN vele RWS diensten en districten Waterschappen Projectbureau Zeeweringen Programmabureau Noordwaard Landschap Hoeksche Waard BAM-infra C-fix BV DHV Ecoconsult SMIT Havenbedrijf Rotterdam Heijmans IMARES INTRON NIOO-CEME RUN SHELL TU Delft UTwente Vandermeerconsulting Ecoshape

Approach and process: monitor

Approach and process: implement Implement concepts in toolboxes, manuals and policies

Future challenges Make Building with Nature common practice: -large-scale applications -generalization of examples and principles -quantification and validation