The landfill mothod is used to reclaim land from the coast and the swamps in Singapore. It is also used in reclamation works involving the merging of islands. One such project is the amalgamation of Pulau Sakra and Pulau Bakau into one big island called Pulau Sakara, which is ten times the size of the two former islands.
In the early years, the fill materials evacuated from the hills in Bedok, Siglap, Tampines and Jurong were used for filling the reclamation areas. In recent years, sea sand obtained from the seabed is the main source of fill materials for reclamation. The reclamation contractors import the sea sand from the neighbouring countries such as Indonesia.
Beach rebuilding is the process of repairing beaches using materials such as sand or mud from inland. This can be used to build up beaches suffering from or erosion from long shore drift . It stops the movement of the original beach material through long shore drift and retains a natural look to the beach. Although it is not a long-lasting solution, it is cheap compared to other types of coastal defenses .
Draining wetlands for ploughing, for example, is a form of habitat destruction . In some parts of the world, new reclamation projects are restricted or no longer allowed, due to environmental protection laws .
Land reclamation or Land rehabilitation is also the process of cleaning up a site that has sustained environmental degradation , such as strip mining . This can be done to allow for some form of human use (such as a housing development ) or to restore that area back to its natural state as a wildlife habitat home.