Wetlands are important ecosystems, but climate change poses a challenge to maintain these in the future. The focus in the thesis is to provide resilient ecosystems with a policy-oriented approach. Collaboration between stakeholders and scientists provided knowledge about the eco-hydrological functions of the ecosystem and built consensus on how to respond to future change. Effective decisions arise when stakeholders align their jurisdiction with laws so that adaptation strategies match ecosystem organisation. Legislative reforms in combination with the latest science available supports adaptation and decisionmaking on short and long-term time scales. This research contributed to further narrow the science-policy interface.