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H1330
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-
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Atlantic
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salt
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meadows
General
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Description habitat
This habitat types includes salt marshes outside the dikes, which are regularly inundated by salt water, and areas inside the dike influenced by salt water. Characteristic species for this habitat type are Sea lavender (Limonium vulgare), Common saltmarsh grass (Puccinellia maritima), Sea-purslane (Atriplex portulacoides) and Couch grass (Elytrigia atherica).
General Occurrence
In The Netherlands, this habitat type can be found in de Wadden Sea and the Delta region. It used to occur on many places along the coast of the former Zuider Zee #1.
Environmental conditions
This habitat type can be found in a zone near the mean high water level up to the foot of low dunes and dikes, with a regular to incidental flooding frequency. This vegetation type prefers a salty environment and can be found in salt or brackish environments with a chloride concentration above 5gCl/L (#3, #4, #5.
Control and growth opportunities
Grazing is prosperous for the development of this habitat.
Dose-effect relations
Flowchart
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h1. General {section}{column:width=80%} || General characteristics || || | Common name | Atlantic salt meadows | | Region | The Netherlands | | Water system | Transitional waters | | Nature parameter | Habitat types | |HR nr| H1330 | | Fact sheet by | M. Haasnoot |{column}{column:width=20%}{column}{section} h1. Description habitat This habitat types includes salt marshes outside the dikes, which are regularly inundated by salt water, and areas inside the dike influenced by salt water. Characteristic species for this habitat type are Sea lavender (_Limonium vulgare_), Common saltmarsh grass (_Puccinellia maritima_), Sea-purslane (_Atriplex portulacoides_) and Couch grass (_Elytrigia atherica_). h3. General Occurrence In The Netherlands, this habitat type can be found in de Wadden Sea and the Delta region. It used to occur on many places along the coast of the former Zuider Zee [#1]. h3. Environmental conditions This habitat type can be found in a zone near the mean high water level up to the foot of low dunes and dikes, with a regular to incidental flooding frequency. This vegetation type prefers a salty environment and can be found in salt or brackish environments with a chloride concentration above 5gCl/L ([#3], [#4], [#5]. h3. Control and growth opportunities Grazing is prosperous for the development of this habitat. h1. Dose-effect relations \\ h4. Flowchart \\ {flowchart}graph[ rankdir=LR] nodesep=0.5 "node0" [ label = "Water depth|Salinity|Dynamics" shape = "record" ]; "node3" [ label = "HAI general" shape = "record" ]; "node0":f1-> "node3" [style=italic,label="minimum"] [ id = 2 ]; {flowchart} \\ h4. |
Dose-effect
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relations
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Uncertainty and validation
These dose-effect relations have been validated on a limited scale. This habitat type was used for the environmental impact assessment of the Volkerak Zoommeer. A qualitative comparison was made between the results of the current situation and ecotope maps. The results have been applied to this area.
Applicability
The relations are applicable to all transitional waters.
Example project
These relations have been used in the Krammer-Volkerak and Zoommeer projects #2.
References
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2
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M.
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en
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K.E.
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van
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de
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Wolfshaar
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(ed).
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(2006).
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Habitat
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analyse
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in
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het
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kader
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van
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de
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Planstudie/MER
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voor
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Krammer,
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Volkerak
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en
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Zoommeer.
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WL
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report
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Q4015
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3
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4
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Weeda,
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E.J.
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en
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Westhoff,
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V.
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(1998).
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De
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vegetatie
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van
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Nederland.
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Deel
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4.
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Plantengemeenschappen
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van
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de
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kust
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en
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van
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binnenlandse
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pioniermilieus.
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Opulus
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Press,
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Uppsala-Leiden.
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5
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Meren
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Ecotopen
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Stelsel.
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RIZA
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nota
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97.076.
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1997
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6
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E.J.,
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J.H.J.
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Schaminee,
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L.
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van
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Duuren
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(2003).
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Atlas
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van
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Plantengemeenschappen
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in
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Nederland.
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Deel3
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Kust
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en
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binnenlandse
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pioniermilieus.
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KNNV
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Uitgeverij.
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