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Example of land loss in coastal Louisiana between 1932 and 2011; detail of Port Fourchon area. Coastal erosion in Louisiana is the process of steady depletion of wetlands along the state's coastline in marshes, swamps, and barrier islands, particularly affecting the alluvial basin surrounding the mouth of the Mississippi River.
The Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) is a 1990 United States federal law that provides funds for wetland enhancement. [1] The law is implemented by federal and state agencies, focusing on restoration of lost wetlands of the Gulf Coast , as well as protecting the wetlands from future deterioration.
The NWI relies on trained image analysts to identify and classify wetlands and deepwater habitats from aerial imagery. NWI started mapping wetlands at a small scale (1:250,000 map which covers an area the size of 128-1:24,000 USGS topographic maps or approximately 7,400 square miles).
Biomass can refer to species biomass, which is the mass of one or more species, or to community biomass, which is the mass of all species in the community. It can include microorganisms, plants or animals. [3] The mass can be expressed as the average mass per unit area, or as the total mass in the community.
In such circumstances where flooding does occur, swamps absorb and use the excess water within the wetland, preventing it from traveling and flooding surrounding areas. [2] Dense vegetation within the swamp also provides soil stability to the land, holding soils and sediment in place whilst preventing erosion and land loss.
The Ramsar Convention on wetland protection was signed in Ramsar, Iran in 1971. Pakistan entered into the convention on 23 November 1976. Pakistan entered into the convention on 23 November 1976. As of March 2013 [update] , there are nineteen Ramsar sites, covering an area of 1,343,807 hectares (3,320,620 acres) in Pakistan .
Wetland conservation is aimed at protecting and preserving areas of land including marshes, swamps, bogs, and fens that are covered by water seasonally or permanently due to a variety of threats from both natural and anthropogenic hazards. Some examples of these hazards include habitat loss, pollution, and invasive species.
Atchafalaya Basin. The wetlands of Louisiana are water-saturated coastal and swamp regions of southern Louisiana, often called "Bayou".. The Louisiana coastal zone stretches from the border of Texas to the Mississippi line [1] and comprises two wetland-dominated ecosystems, the Deltaic Plain of the Mississippi River (unit 1, 2, and 3) and the closely linked Chenier Plain (unit 4). [2]