Difference between revisions of "Salt marsh"

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Definition|title= Salt marsh
 
Definition|title= Salt marsh
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|definition= Low, wet, muddy area periodically or continuously flooded by brackish or salt water to a shallow depth, usually characterized by grasses and other low plants (but not trees); land transitional between terrestrial and aquatic systems where saturation with water is the dominant factor controlling plant and animal communities and soils.<ref>CoPraNet glossary [http://www.coastalpractice.net/glossary/index.htm]</ref>.  
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|definition= A densely vegetated coastal ecosystem situated in the upper coastal [[#Intertidal zone|intertidal zone]] between land and [[#Tidal flat|intertidal mudflats]], or bordering directly open saltwater or brackish water if mudflats are absent. }}
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[[Introduction to salt marshes|Salt marsh]] is a key habitat of transitional waters lying at the interface between the land and the sea, depending on, and periodically covered by tidal sea water.
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Chapman (1960<ref> Chapman, V.J., 1960. ''Salt Marshes and Salt Deserts of the World.'' London: Leonard Hill Limited, 392p.</ref>, 1977 a<ref>Chapman, V.J., 1977. ''Wet Coastal Ecosystems.'' Amsterdam: Elsevier, 440p.</ref>, b <ref>Chapman, V.J., 1997. ''Coastal Vegetation.'' New York: Pergamon Press, 292p.</ref>) describes nine different geographical salt marsh regions throughout the world.
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[[image:Saefringhe NIOO-CEME.jpg|left|thumb|350px|caption| Example of a salt-marsh: Land of Saeftinghe in the Western Scheldt estuary.]]
  
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Salt marshes are important because...
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==Notes==
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*[[Salt marshes]] are a key habitat of transitional waters lying at the interface between the land and the sea, depending on, and periodically covered by tidal sea water.  
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*Salt marsh vegetation is usually composed of grasses and other low plants, but not trees.
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*Water saturation is the dominant factor controlling plant and animal communities and soils.
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*The soil may be composed of deep mud and peat.
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*Salt marshes are drained by tidal creeks that form spontaneously depending on local soil characteristics and gradients in the hydraulic head of infiltrated water.
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*Salt marshes usually form in sheltered coastal systems, such as [[#Lagoon|lagoons]] and [[#Estuary|estuaries]] where fine sediments can be deposited. Salt marshes can also form behind spits and artificial sea defences where tidal waters can flow gently and deposit fine sediments.
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*Salt marshes are sometimes referred to as '''schorre''' or '''kwelder'''.
  
  
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== Salt marsh species ==
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Chapman (1960<ref> Chapman, V.J., 1960. ''Salt Marshes and Salt Deserts of the World.'' London: Leonard Hill Limited, 392p.</ref>, 1977 a<ref>Chapman, V.J., 1977. ''Wet Coastal Ecosystems.'' Amsterdam: Elsevier, 440p.</ref>, b <ref>Chapman, V.J., 1997. ''Coastal Vegetation.'' New York: Pergamon Press, 292p.</ref>) describes nine different geographical salt marsh regions throughout the world.
  
  
  
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== Habitat creation ==
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==Related articles==
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* [[Salt marshes]]
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* [[Dynamics, threats and management of salt marshes]]
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* [[Spatial and temporal variability of salt marshes]]
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* [[Natural variability and change in coastal ecosystems#Salt marshes]]
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* [[Spatial and temporal scales in biogeomorphology#Coupling of mudflat to Saltmarsh]]
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* [[Characteristics of muddy coasts]]
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* [[Biogeomorphology of coastal systems]]
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* [[Nature-based shore protection]]
  
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Managed re-alignment. Restoration of salt marsh etc.
 
  
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== Relevant legislation ==
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=See also=
  
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Salt marshes are ??? under the Habitats Directive.
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* [[Birds Directive, Habitats Directive, NATURA 2000]]
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* [http://en.wikipedia.org/wiki/Salt_marsh Salt marsh on Wikipedia]
  
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==See also==
 
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* [[Bird Directive, Habitat Directive, NATURA 2000]]
 
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* [[Natural variability in Coastal Ecosystems#Salt marshes]]
 
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* [http://en.wikipedia.org/wiki/Salt_marsh Salt marsh on Wikipedia]
 
  
 
==References==
 
==References==
 
<references/>
 
<references/>

Latest revision as of 17:22, 7 March 2023

Definition of Salt marsh:
A densely vegetated coastal ecosystem situated in the upper coastal intertidal zone between land and intertidal mudflats, or bordering directly open saltwater or brackish water if mudflats are absent.
This is the common definition for Salt marsh, other definitions can be discussed in the article


Example of a salt-marsh: Land of Saeftinghe in the Western Scheldt estuary.

Notes

  • Salt marshes are a key habitat of transitional waters lying at the interface between the land and the sea, depending on, and periodically covered by tidal sea water.
  • Salt marsh vegetation is usually composed of grasses and other low plants, but not trees.
  • Water saturation is the dominant factor controlling plant and animal communities and soils.
  • The soil may be composed of deep mud and peat.
  • Salt marshes are drained by tidal creeks that form spontaneously depending on local soil characteristics and gradients in the hydraulic head of infiltrated water.
  • Salt marshes usually form in sheltered coastal systems, such as lagoons and estuaries where fine sediments can be deposited. Salt marshes can also form behind spits and artificial sea defences where tidal waters can flow gently and deposit fine sediments.
  • Salt marshes are sometimes referred to as schorre or kwelder.


Chapman (1960[1], 1977 a[2], b [3]) describes nine different geographical salt marsh regions throughout the world.


Related articles


See also


References

  1. ↑ Chapman, V.J., 1960. Salt Marshes and Salt Deserts of the World. London: Leonard Hill Limited, 392p.
  2. ↑ Chapman, V.J., 1977. Wet Coastal Ecosystems. Amsterdam: Elsevier, 440p.
  3. ↑ Chapman, V.J., 1997. Coastal Vegetation. New York: Pergamon Press, 292p.
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