CASE STORY
Singapore shows the potential for carbon capture in urban mangrove wetlands
DHI was involved in a study in Singapore that included testbedding climate solutions with research into blue carbon, outlining the potential for carbon capture in urban mangrove wetlands. The first results have proved promising.
Gardens by the Bay, an iconic horticultural attraction in Singapore, developed the area now known as Kingfisher Wetlands into a central urban wetland with enhanced microhabitats to encourage biodiversity, in turn enriching visitor experience. Beyond aesthetics, the project is also inspiring research into the question: can urban mangrove wetlands help us in our fight against climate change? DHI scientists contributed to making this happen, and a pilot study on the potential of urban mangroves capturing blue carbon has proved promising.
Challenge:
Gardens by the Bay wanted to make part of the Kingfisher Wetlands area more inviting for visitors while also serving the higher purpose of supporting national sustainability efforts. Initially, the intention was to improve aesthetics while enhancing biodiversity habitats and improving water circulation and aeration in the water bodies for biodiversity to thrive.
Solution:
- In consultation with DHI scientists, Gardens by the Bay planted over 200 native mangroves and mangrove associates: DHI provided guidance on the selection of species and monitored their health and growth.
- The project included testbedding climate solutions with research into blue carbon: a pilot study on the potential of urban mangroves capturing blue carbon showed that the carbon content in sediments was found to be comparable to natural, intertidal habitats in Singapore and has remained stable post-development.
- Through a series of educational lectures and science activities, the community learned how coastal ecosystems and nature-based solutions are helping to protect our environment.
Results:
- With the urban mangrove wetlands and newly-created water cascades and streamlets, there are now more spaces for biodiversity to flourish.
- The project paves way to explore the potential of manmade wetlands for long-term carbon storage
- Offers insights into scaling the solution for use in other parts of Singapore or other cities
 | Read the full case story on our website. |
 | This project contributes to UN SDG #13 Climate Action. |