Mangroves to reduce flood risk

Mangroves prevent coastal erosion by trapping sediment in their roots, thereby maintaining a shallow slope of seabed along coasts. This serves to absorb the energy of tidal surges. Mangroves also buffer the impact of wind. As such, the presence of mangroves can minimize the damage caused by typhoons, cyclones, hurricanes, and tsunamis. In coastal areas expected to receive more extreme weather events due to climate change, healthy mangrove systems will play this adaptive role. Mangroves are also important in mitigation, acting as a major carbon sink.

Climate Related Risk

Cyclone/hurricane/typhoon, Flooding

Form of Option


Country of Origin

India, Malaysia, Sri Lanka


Municipality/urban area, Nation state


The option has been identified and implemented with no indication that it will continue beyond the context of the project.

Institution / Legal Reach

Not indicated