About:

• The Ramsar Convention, which came into existence in 1971, is an intergovernmental treaty that provides the framework for national action and international cooperation for the conservation and wise use of wetlands and their resources.
  
  
• The Ramsar Convention on Wetlands defines wetlands as “areas of marsh, fen, peat land or water, whether natural or artificial, permanent or temporary, with water that is static or flowing, fresh, brackish or salt, including areas of marine water the depth of which at low tide does not exceed six meters.”
  
  
• Globally, wetlands cover 6.4 per cent of the geographical area of the world.
  
  

Indian scenario

• In India, according to the National Wetland Inventory and Assessment compiled by the Indian Space Research Organisation (ISRO), wetlands are spread over 1,52,600 square kilometres (sq km) which is 4.63 per cent of the total geographical area of the country.
  
  
• Of the 1,52,600 sq km, inland-natural wetlands account for 43.4% and coastal-natural wetlands 24.3%. Rivers/streams occupy 52,600 sq km, reservoirs/barrages 24,800 sq km, inter-tidal mudflats 24,100 sq km, tanks/ponds 13,100 sq km and lake/ponds 7300 sq km.
  
  
• India has 19 types of wetlands. In state-wise distribution of wetlands, Gujarat is at the top with 34,700 sq km (17.56 percent of total geographical area of the state), or 22.7 percent of total wetlands areas of the country thanks to a long coastline.
  
  
• It is followed by Andhra Pradesh (14,500 sq km), Uttar Pradesh (12,400 sq km) and West Bengal (11,100 sq km).