| Title | Living with saline water |
|---|---|
| Period | 2005 - unknown |
| Status | Completed |
| Research number | OND1310547 |
| Due to rise of the sea level and sinking of the surface level salinity increases in the lower parts of the Netherlands. In order to be able to take measures, knowledge has to be developed on salt transport in the groundwater at a larger scale and in the future. For policy and management it is necessary to know to what extent this salinization can occur. * Aim and bottlenecks: Insight, necessity and potency of adaptive measures as a result of salinity for ground and surface water at regional level, now and in the future. Due to various causes it is to be expected that the deep and shallow groundwater will increasingly become brackish. Due to sea level rise and sinking of the surface level salinity will increase. Moreover, during dry summers the inlet of fresh water is problematic, since salt intrusion increases with low river discharges. Insight is needed into the development of this salinization, and into the relation with use of space. * Approach. This project starts with an inception phase, because of the complexity of the subject, in which an approach will be assessed for the different parts. Subsequently the following subjects will be further elaborated by PhD students: - Study into the effects of salinization, with modelling at a regional scale. - Promising measures to counteract (the effects of) salinization. - A model for decision making. Scenario study for the lower parts of the Netherlands on salinity, salt flows and concentrations in deep groundwater. - Future scenario: use of space in relation to salinization in the lower parts of the Netherlands. * Results: Insight into the degree of salinization of the (ground)water in the lower parts of the Netherlands and into its effects on the use of space. * Final result: Measures to map the effects of salinization and concomitant mitigating measures. Scenarios for the spatial planning of the lower parts of the Netherlands in relation to the salinization of water systems. |
| Door zeespiegelstijging en daling van het maaiveld neemt de zoute kwel toe in de lage delen van Nederland. Om maatregelen te kunnen nemen moet kennis worden ontwikkeld over zouttransport in het grondwater op grotere schaal en in de toekomst. Voor beleid en bestuur is het nodig om te weten in welke mate deze verzilting kan optreden. [Doel en knelpunten] Inzicht, noodzaak en potentie van adaptieve maatregelen als gevolg van zoute kwel voor grond- en oppervlaktewater op regionaal niveau, nu en in de toekomst. Door diverse oorzaken valt te verwachten dat het diepe en ondiepe grondwater in toenemende mate zal verzilten. Door zeespiegelstijging en bodemdaling zal de brakke kwel toenemen. In droge zomers is bovendien de inlaat van zoet water problematisch, omdat de zoutindringing toeneemt bij lage rivierafvoeren. Er is inzicht nodig in de ontwikkeling van deze verzilting, en in de relatie met ruimtegebruik. [Plan van aanpak] Bij dit project wordt gestart met een inceptiefase, vanwege de complexiteit van het onderwerp, waarbij een plan van aanpak voor de verschillende onderdelen wordt vastgesteld. Vervolgens zullen de volgende onderwerpen, door de inzet van AIO's, verder worden uitgewerkt: - Studie naar de effecten van verzilting, met modellering op regionale schaal - Veelbelovende maatregelen om (de effecten van) verzilting tegen te gaan - Een model voor besluitvorming - Scenariostudie voor Laag Nederland over kwel, zoutstromen en gehalten in diep grondwater - Toekomstscenario: ruimtegebruik in relatie tot verzilting in Laag Nederland [Resultaten] Inzicht in de mate van verzilting van het (grond)water in Laag Nederland en in de effecten daarvan op ruimtegebruik. [Eindresultaat] Maatregelen om de effecten van verzilting in kaart te brengen en mitigerende maatregelen daarbij. Scenario's voor de inrichting van Laag Nederland in relatie tot verzilting van watersystemen. |
| Secretariat | Section of Hydrology and Geo-environmental sciences (VU) |
|---|---|
| Collaboration | TNO (TNO) |
| Collaboration | Water Control Board of Rijnland / Water Management Department |
| Collaboration | Control Water Board Zeeuwse Eilanden / Planning Water Management Department |
| Collaboration | Province of Noord-Holland |
| Collaboration | Province of Zuid-Holland |
| Collaboration | Province of Zeeland |
| Collaboration | Witteveen and Bos Consulting Engineers |
| Collaboration | CLM Research and Advice Plc (CLM) |
| Collaboration | TNO (TNO) |
| Collaboration | Water Authority in Hollands Noorderkwartier / Watersystems Board, department of Policy development and Planning (BOP) |
| Project leader | Dr. J. Groen |
|---|---|
| Project leader | Dr.ir. G.H.P. Oude Essink |
| A12000 | Surfacewater and groundwater |
|---|---|
| A61000 | Environmental planning |
| D15600 | Hydrospheric sciences |
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