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  • Gav-Dunes Restoration Project Carme Blad, Josep Lascurain & Ramon VallejoManagement of Metropolitan Dune Ecosystems, 15 November 2010

  • Pine plantations early 20th century: dune stabilisationReduction of sediment discharge in the Llobregat deltaPeriurban development secondary housing - tourismModification of marine currents coast infraestructuresSea pollution: marine spray impacts

    Gavamar

  • Second project 1998-2000 CENTRAL MARFirst project 1991-1992 LES MARINESGavamar

  • 1949

  • A short fore dune system

  • But a good diversity in grey dunes

  • First Project: The construction of the promenade 1990-1992 A small transformation

  • 1991

  • 1991Ammophila arenaria transplantation

  • 1990

  • 2010

  • 1992

  • 2010

  • 1961

  • 2006

  • Vegetated dune area also increased

  • ALBATROS camp site 1984GAV CENTRAL MAR

  • The projectN. Abad, 2000

  • Compensation

    Rehabilitation

    Coastalecosystems

    Campsite

    Semi-natural ecosystem + Promenade

  • Fuente: www.gavamar.comGav Mar beach 1989The second project 1998-2000: Continuation ot the promenade on the old campsite

    Specific problemsFlat topographyAlloctonous soil (fine textured, stony)Lack of characteristic dune speciesDominance of ruderals & ornamentals

  • Impact of polluted marine aerosol

  • The technical project

    Elimination of alloctonous soil Creation of dune topography using underlying sand (Construction of the promenade pathways) Sand traps on the front dune Plantation and seeding of dune species (short-term monitoring)

  • Ammophila arenaria

  • Gav Mar in 2000: Restoration project finished

  • 1986

  • Good stablishment of most of dune species .

  • 2004

  • With the exception of most shrubs and treesApril 2004

  • Pistacia lentiscus

  • March 2009

  • Juniperus macrocarpa

  • Rosmarinus officinalis

  • Tamarix africana

  • Few Ammophila arenaria remainingMay 2010

  • March 2009

  • Beach cleaning

  • Fore dune fixation by the pavementFeb. 2010

  • Exotic speciesM. C.de Araujo, 2010windward

  • Ruderals still there, May 2010

  • RUDERALIZATIONbutPositive visitors perception of the dune ecosystems in the promenade

  • Certainties and uncertaintiesTo some extent: learning by doing Adaptive restoration required

    Public awareness and involvement are critical components of restorationEspecially in perurban, highly used areas

    What doing next? addressing identified limitations to the sand dune ecosystem dynamics: small, focused experiments

    1961-1986 (=1992) 35 mts growth 1986-2010 16 mts growth average