The Netherlands, primarily a Delta nation, is confronted with significant challenges in adapting to the impacts of climate change and rising sea levels. And the urgency to prepare for a significant climate change is more than ever, now 9 years after the Paris agreement, the feasibility to keep to the agreement of 1,5 degree is shaky. The pressures of climate change, rising sea levels, increased demands on limited freshwater supplies, and more frequent extreme weather events are exposing the limitations of human control over the environment (Meyer, 2014).
Traditionally, the delta has been a dynamic landscape shaped by tides, wind, and currents. However, over the centuries, human intervention has increasingly dominated and transformed this landscape, leading to reduced dynamics, adaptability and biodiversity. The dynamic landscape is mechanically controlled with dikes, dams, sluices, and pumps. These highlights of water engineering make the Netherlands considered a pioneer in water management and flood protection. But to keep this postion we need to adapt and react on the changing future a head.

The human utilization of the delta aligns with the prevalent anthropocentric worldview, where nature is perceived as serving the direct or indirect needs of humans. This exploitative attitude towards the natural world has resulted in negative consequences, as we are currently witnessing. Nevertheless, there is a shift in this perspective, with two-thirds of the Dutch population considering themselves part of nature and feeling a responsibility to care for it. This view is a combination between the roles of stewardship and participant. (Schouten, 2013).

This master thesis has explored the research question of what the return to a (semi-) open delta would mean for the green-blue network of Schouwen-Duivenland, and what spatial framework and guiding design principles would be necessary to sustain and upgrade both the green-blue networks and livability, now and in the future.

By conducting a comprehensive analysis at the delta scale, this study identifies 6 key challenges: water safety, sediment deficiency (zandhonger), biodiversity loss, water quality, and saltwater intrusion. A more focused analysis at the island scale enables the exploration of solutions to these challenges and the establishment of design principles.
The proposed design principles, guided by a nature-based solutions approach, highlight the fundamental importance of soil and water. These principles address challenges posed by agriculture, urbanization, water management, and climate change, aiming to create a resilient and nature-inclusive environment. To facilitate their implementation in different contexts, the design principles have been transformed into practical pattern cards, offering clear and practical guidance.

In conclusion, this master thesis has provided valuable insights into the potential benefits and spatial implications of returning to a (semi-) open delta for Schouwen-Duivenland. The research highlights the importance of integrating green-blue infrastructure, ecological considerations, and livability aspects to create a resilient and thriving environment for both nature and people. This study offers valuable insights for policymakers, urbanists, landscape architects and researchers in the pursuit of a sustainable and nature-inclusive delta landscape.

The Netherlands is inextricably linked to a network of water, polders, and dykes. Recent climatic and anthropogenic transitions pose several threats to destabilize this balance including the rise in sea level, extreme weather, and floods which could drastically change the landscape of South Holland as we know it by 2100. With this potentially unstable future in context, the demand for space and houses in the Netherlands rises consistently.
However, the combination of these issues presents an opportunity to restore the balance and linkages of Dutch ways with water. The future of the Maritime manufacturing industry can act as an adhesive to sustain these links by drawing on transitions around water at a global as well as local scale. Hence, the project intends to investigate the changes in the role of water systems in 2100 and how the Maritime manufacturing sector can steer it to address future spatial and climatic adversities.
In 2100, we envision the Maritime Manufacturing industry to expand its role to facilitate the adaptivity of the natural, social and technological landscape of South Holland, using water as the primary medium. We intend to introduce a radical transition by planning for diversified spaces on and for water, serving both an economic prospect as well as increasing consciousness of its role within society.
The vision addresses 3 major transitioning landscapes (wet peatlands, salt marshes, and water bodies) to develop systemic strategies and plan spaces by making optimum use of products by the Maritime industry. The vision opens up several areas of investigation around the 2100 ‘Portscape’ including the scope of circularity in the shipbuilding/ship-recycling industry, rethinking material-flows, and transitions in socio-economic structure in context to new social environments.