Restoration of salt marshes in the Netherlands
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Published source details
Bakker J.P., Esselink P., Dijkema K.S., van Duin W.E. & de Jong D.J. (2002) Restoration of salt marshes in the Netherlands. Hydrobiologia, 478, 29-51.
Published source details Bakker J.P., Esselink P., Dijkema K.S., van Duin W.E. & de Jong D.J. (2002) Restoration of salt marshes in the Netherlands. Hydrobiologia, 478, 29-51.
Actions
This study is summarised as evidence for the following.
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Remove surface soil/sediment: brackish/salt marshes Action Link |
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Remove surface soil/sediment: brackish/salt marshes
A study in 1997–1999 aiming to create a brackish marsh on coastal farmland in the Netherlands (Bakker et al. 2002) reported that an area from which topsoil was removed was colonized by farmland weeds and some plant species characteristic of brackish marshes. Two years after topsoil removal, 23 plant species were recorded in the study area. The most abundant taxa were mostly farmland weeds/generalists, such as chamomile Matricaria recutita (in 97% of quadrats), sow thistle Sonchus oleraceus (76%) and meadow grass Poa annua (61%). Taxa characteristic of brackish marshes included rushes Juncus spp. (in 97% of quadrats), sea aster Aster tripolium (7%) and alkali bulrush Scirpus maritimus (5%). The study does not define a full list of characteristic species. Methods: In 1997, a 30 cm layer of topsoil was stripped from an area of coastal farmland (Emmapolder). Not all topsoil was completely removed from the site: some was stored in rows on site, and so provided a source of farmland weed seeds. Brackish groundwater naturally seeped towards the ground surface. In 1999, vegetation was surveyed in an unplanted area of the site, next to a pool (100 quadrats, each 0.4 m2).
(Summarised by: Nigel Taylor)
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