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1Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences, Radboud University, Heyendaalseweg 135, 6525AJ, Nijmegen, The Netherlands. marieke.vankatwijk@ru.nl.
Sea-level rise threatens coastal agriculture. Seagrass mariculture, using Zostera marina ("sea-rice"), offers a sustainable solution, providing food and ecosystem services with zero-carbon emissions.
Area of Science:
- Marine biology
- Agronomy
- Coastal engineering
Background:
- Rising sea levels cause salt intrusion and flooding in coastal areas.
- Conventional agriculture is increasingly challenged in these seawater-influenced landscapes.
- Seagrass meadows are vital coastal ecosystems.
Purpose of the Study:
- To explore the potential of Zostera marina (sea-rice) mariculture as a sustainable agricultural practice.
- To highlight the dual benefits of seagrass cultivation for food production and ecosystem services.
- To advocate for interdisciplinary collaboration in developing seagrass mariculture.
Main Methods:
- Literature review on seagrass ecology and mariculture potential.
- Analysis of Zostera marina's yield and environmental benefits.
- Conceptual framework for integrated seagrass farm design and management.
Main Results:
- Zostera marina can yield 3-7% of global rice production.
- Seagrass mariculture requires no freshwater, fertilizer, or pesticides.
- Cultivation offers significant ecosystem services, including carbon sequestration and coastal protection.
Conclusions:
- Seagrass mariculture presents a viable, sustainable alternative for coastal regions affected by sea-level rise.
- Integrated planning is crucial to balance food production with ecological restoration and services.
- Interdisciplinary approaches are essential for the successful development and implementation of this novel agricultural system.
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