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Important Geographical Facts about Wetlands of the World

22-JUN-2018 15:31

    Important Geographical Facts about Wetlands of the World

    Wetlands are the lands between terrestrial and aquatic ecosystems where the water table is usually at or near the surface or the land is covered by shallow water. It can be found in any part of the world and in any climatic zone from the Polar Regions to the tropics, and from high altitudes to dry regions. They are distributed around the world and cover an area that is 33% larger than USA.

    Types of Wetlands

    Wetlands are occur naturally and can be freshwater, brackish or saltwater. There are four types of wetlands which are discussed below:

    1. Coastal Wetlands: They are found in the areas between land and open sea that are not influenced by rivers such as shorelines, beaches, mangroves and coral reefs.

    2. Shallow Ponds and lakes: These wetlands are areas of permanent or semi-permanent water with little flow. They include virtual ponds, spring pools, salt lakes and volcanic crater lakes.

    3. Bogs: They are waterlogged peat-lands in old lakes or basin or depression in the landscape. Almost all water in bogs comes from rainfall. As bogs are unsuitable for human use, they offer an undistributed habitat for a wide range of species. It includes moose, back bear, lynx, snowshoe horse and mink.

    4. Marshes and Swamps: They are also known as palustrine wetlands. Swamps and fens account for almost half of all wetlands throughout the world. Swamps are fed primarily by surface water inputs and dominated by trees and shrubs. Fens are groundwater fed peat-forming wetlands covered by grasses and wild flowers. Marshes are periodically saturated, flooded or pounded with water and characterized by non-woody vegetation.

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    Major Wetlands of the World

    Wetlands are the most biologically diverse ecosystems. They provide habitat for a great number of water and land species, and are an important environment to many migratory bird species. The names of the major wetlands of the world are given below:

    1. Pantanal (Brazil, Bolivia and Paraguay)

    2. Camargue (France)

    3. Wasur National Park (Indonesia)

    4. Kakadu Wetlands (Australia)

    5. Kerala Backwaters (India)

    6. Okavango (Botswana)

    7. Kafue (Zambia)

    8. Everglades (USA)

    9. Lower Danube and Danube Delta (Bulgaria, Moldova, Romania, Serbia and Ukraine)

    10. Sundarbans (India & Bangladesh)

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    Coastal wetlands of tropical mangroves and temperate salt marshes are considered to be carbon sinks.

    List of Wetland that fluxes Nitrous Oxide

    Wetland type

    Location

    Mangrove

    Shenzhen and Hong Kong

    Mangrove

    Muthupet, South India

    Mangrove

    Bhitarkanika, East India

    Mangrove

    Pichavaram, South India

    Mangrove

    Queensland, Australia

    Mangrove

    South East Queensland, Australia

    Mangrove

    Southwest coast, Puerto Rico

    Mangrove

    Isla Magueyes, Puerto Rico

    Salt marsh

    Chesapeake Bay, US

    Salt marsh

    Maryland, US

    Salt marsh

    North East China

    Salt marsh

    Biebrza, Poland

    Salt marsh

    Netherlands

    Salt marsh

    Baltic Sea

    Salt marsh

    Massachusetts, US

    Wetlands are act as natural buffers towards nutrients expelled from surrounding watersheds, excess nutrients mainly through anthropogenic sources have been shown to significantly increase the N2O fluxes from their soils through denitrification and nitrification processes.

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    DISCLAIMER: JPL and its affiliates shall have no liability for any views, thoughts and comments expressed on this article.

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