Community-led ecosystem-based adaptation, inner Gulf of Thailand
BEST PRACTICE IN:
Aquaculture farmers in Bang Khun Thien village
World Wide Fund for Nature (WWF); Local NGOs
As opposed to national and provincial governments’ investment in concrete wall structures and sandbags, the local communities joined forces in a network to tackle the erosion problem by constructing bamboo fences/walls (based on traditional technology), supplemented by mangrove planting. One kilometer of bamboo costs US$250,000, compared to the US$ 1.1-1.4 million estimated costs for concrete and sandbag structures.
Human activities, such as dam construction and irrigation, and land subsidence resulting from excess groundwater extraction, have led to a decrease in sediment supply to the coast and consequent severe coastal erosion in the Gulf of Thailand. The impacts of coastal erosion have not only resulted in the loss of physical infrastructure and aquaculture and farmland, but have also increased the vulnerability of the villagers to storm surges and floods.
Protecting farms against coastal erosion and flooding
Bamboo-made fence/walls and mangrove trees are used as natural infrastructure to reduce vulnerability to storm surges, rising sea levels and floods. This traditional technology using the available ecosystem services is an extremely cost-effective community-led adaptation method.