Ganges Delta Ganges Delta The Ganges-Brahmaputra Delta (also known as the Brahmaputra Delta, the Sunderbans Delta or the Bengal Delta) is a river delta in the Bengal region of the Indian subcontinent, consisting of Bangladesh and the Indian state of West Bengal. It is the world's largest delta and empties into the Bay of Bengal the combined waters of several river systems, mainly those of the Brahmaputra river and the Ganges river. It is also one of the most fertile regions in the world, thus earning the nickname The Green Delta. The delta stretches from the Hooghly River on the west to
Indus River Delta fan. Memon reports that the area of mangrove forests was 263,000 hectares in 1977 and in 1990. Both agree that they were sixth-largest mangrove forests in the world. Previously there had been eight species of mangroves, although only four now remain: "Aegiceras corniculatum", "Avicennia marina", "Ceriops tagal", and "Rhizophora mucronata". Among these "Avicennia marina" constitutes 99% of the mangrove population. As of 2007, the mangroves of the Indus delta are the largest desert climate mangrove forests in the world. "Arthrocnemum macrostachyum" is also found growing in the delta. The natural flow of water and fertile sediments from Indus river into