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Casuarina Plantation on Coastal Zone

1. In the area facing to the sea, palisades will be placed parallel to the coastline to arrest the sand drift and to form sand dunes. The sand dune will be formed not only as the protection for planted seedlings, but also to act as a breakwater against tidal waves. The sand dune will be maintained at one meter high or more before stabilized by creepers.  The plantation block will also be enclosed and sheltered by the palisade, against sand and wind if necessary, constructed using the branches and the poles from the thinning operation.

2. In order to strengthen the function of the plantation to diminish tidal waves by cyclones and tsunamis, mixed plantation will be promoted. In between the casuarina, species like Pandanus spp., Prosopis spp. will be planted to develop the multi-layered and multi-species forest. Cashew trees will be also promoted to augment the incentive for the VSS to manage and patrol the area. Thinning operations will be done to increase the girth of and to raise the benefits from the plantation. This will also allows the other species to grow with more light in the forest.

3. To keep the casuarina forest healthy, the matured casuarina plantations which reache up to 15m in height and/or over 20 years age would be regenerated. It is suggested assuming a working belt for forestry operation area of 200m in forest width, 20m of the matured working belt reaching 15 m high will be cut every two years and replanted on the cut-over area. Replanting will be done in the manner of plantation establishment, aiming at developing multi-layered and multi-species forest.