Restoration is more than plantation
Mangroves are highly adapted coastal ecosystems. A restoration project can fail even after large-scale planting if tidal exchange, elevation, salinity and sediment conditions are unsuitable.
Start with the site
Before planting, restoration teams should understand how water enters and leaves the site, where sediment has accumulated, whether channels are blocked and which native mangrove species are naturally suited to the location.
Hydrology first
Where appropriate and legally permitted, restoring tidal connectivity can be more important than immediately increasing planting numbers. Better water movement can create conditions in which natural regeneration and planted saplings have a stronger chance of survival.
Measure outcomes
Long-term restoration should track survival, natural recruitment, canopy development, sediment conditions, biodiversity indicators and water movement. Plantation counts alone do not show whether an ecosystem is recovering.
A strong mangrove programme therefore moves from plantation targets to ecosystem outcomes.