Sediments by the Sundarbans, Bangladesh and India22.0N 89.0E
Sediments flow off the coast of India (left) and Bangladesh (right), into the Bay of Bengal. A large part of this coastal area is the Sundarbans, in the mangrove-dominated Ganges Delta. Situated mostly in Bangladesh (81%), a smaller portion of it lies in India (19%). To the south the forest meets the Bay of Bengal; to the east it is bordered by the Baleswar River and to the north there is a sharp interface with intensively cultivated land. The natural drainage in the upstream areas, other than the main river channels, is everywhere impeded by extensive embankments and polders.