Biodiversity
 

 

 

 

 

 

 

 

 

 

 
Coastal Guide on Dune Management 
 

Biodiversity and dune protection in Merlimont, France


Keywords:
Atlantic coast
Mainland barrier dune coast
dune dynamics

Contact: J. Favennec

Location:  France, Pas-de Calais, Merlimont

Merlimont
The dunes of Merlimont are a vast system of calcareous dunes. In 1992 the dune land between Merlimont and Berck was selected as a pilot site for the European LIFE programme to establish and propose a conservatory method of management, a method wich respects the natural functioning of the natural habitat of the dune ecosystem complex. This dune site was selected for its richness of habitats, plant  and bird species. The coastal dunes of Merlimont can be divided in three zones ; outer dunes, inner dunes and an area of interdunal  flats with a rich combination of relatively undisturbed geomorphological and ecological features.

Management
The duneland is within the jurisdiction of the Forestry  Adiminstration and managed by the National Office for Forestry (ONF). Management choices are:

  • free expression of dune dynamics
  • favour the dynamic of decideous vegetation. Part of the potential natural vegetation has to be taken away. The variety of stationary conditions linked to the topography and hydrology will encourage biodiversity
  • allow factors of diversity to play their role (conditions of vegetation linked to the proximity of the sea, conditions of water supply, man’s action)
  • monitoring and control of the course of evolution
  • strict control of access by public
Results
The monitoring and evolution of the site will constantly be compared with studies made at  that time. To ensure the continuity of the geomorphological study, every three years topographic surveys will be done on existing transects. Aerial photographs will be made at regular intervals.
 
 

Merlimont dune area


References

  • Poinsot, C., Conservation and development of coastal dunes of the Nord-Pas de Calais seashore.  Perspectives in coastal dune management pp 261-267, van der Meulen, F., Jungerius, P.D. & J.H.Visser, SPB Academic Publishing bv, The Hague, The Netherlands, 1989 (EUCC library code BNd 89)

 

 

 

 

 
 
Dune Guide ordered by


Each case can be found via geographical maps and via thematical texts putting the cases in an order of six interesting topics:
seashore dynamics
sand mobility
hydrology and water management
conservation management
management of forests
management in relation to recreation and tourism