Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Dutch dune revival Voorne and Goeree

407 views

Published on

Dynamic Dunes Congress 2015
Keynote Matthijs Broere - Dutch dune revival Voorne and Goeree

Published in: Environment
  • Be the first to comment

  • Be the first to like this

Dutch dune revival Voorne and Goeree

  1. 1. LIFE Dutch Dune Revival: Voorne and Goeree
  2. 2. Contents • Introduction: threats & causes • Dune restoration project • Preparation: data gathering, map drawing, calculations, permits • Preparation: work descriptions, project management • Implementation: actions and methods • Future management • Communication (by Ted Sluijter) • First results: an impression • Conclusions
  3. 3. Introduction: threats & causes • Calcareous dune areas very valuable, also on an international scale. High biodiversity in dune grasslands, shrublands and humid dune slacks. • Threat: strong decline in the past decades of the open and dynamic dune landscape. • Threat: rapid vegetation succession: loss of dune grasslands, dune slacks and accompanying species. • Causes: reduced dynamics (coastal defence), collapsing rabbit populations, nitrogen deposition, vegetation succession.
  4. 4. Introduction: threats & causes •(ha)
  5. 5. 5 sub areas: Voornes Duin • Waterbos 2011 • Stekelhoek 2013 • Quackjeswater 2013 Duinen van Goeree • Vuurtoren 2011 • Strand Noord 2013 Dune restoration project
  6. 6. Preparation: data analysis, map drawing Historical data • target species • target habitats Current distribution • species and habitats Abiotics • hydrology • seepage • humus layer Data essential for • choice of measures and locations • t=0 • preparation of maps • implementation of measures
  7. 7. Preparation: map drawing, calculations Designation of locations and measures: • What? • Where • How much? • When? Ecological protocol: • Current values • N2000 habitats and species • Other species • Vulnerable situations • Mitigation and improvement
  8. 8. Preparation: permits Flora and Fauna Law Nature Protection Law Environmental Law Forest Law …and others Furthermore: Explosives, transport routes etc.
  9. 9. Preparation: work descriptions and project management External expertise: Eelerwoude • Technical work descriptions and maps • Permits • Tender procedure • Co-supervision on the implementation
  10. 10. Implementation: actions and methods • Humid dune slacks: sod-cutting • Dune grasslands: mowing • Shrubs and trees: removal • Start: October 2011 • End: March 2014
  11. 11. Habitat type Before LIFE (hectares) After LIFE (hectares) Difference (hectares) H0000 (No habitat type) 1244,79 1183,52 -61,27 H2110 (Embryonic shifting dunes) 5,02 5,02 0,00 H2120 (White dunes) 2,53 4,16 1,62 H2130 (Grey dunes) 16,32 119,35 103,03 H2160 (Dunes with Hippophae rhamnoides) 72,63 18,67 -53,97 H2180 (Dune forest) 24,35 20,62 -3,73 H2190 (Humid dune slacks) 1,43 18,72 17,29
  12. 12. Sub area Waterbos Voornes Duin • Very wet conditions • Rapid expansion of shrubland and forest • Small remnants of – dune slacks – calcareous dune grasslands • Aspen colonization
  13. 13. Waterbos Actions • Shrub and tree removement • 56 ha dune grasslands H2130 • Sod cutting • 16 hectares of humid dune slacks H2190 • 22.000 m3 • Burried in coastal defense zone • 5,5 kilometers of fencing
  14. 14. Waterbos Main Improvements • Connection with other dune restoration project – exchange of species – connected landscape (H2130) • More landscape dynamics • Humid dune slacks (H2190) • Target species (a.o.): – bog pimpernel (Anagallis tenella) – variegated horsetail (Equisetum variegatum) – fen orchid (Liparis loeselli).
  15. 15. Sub area Vuurtoren Duinen van Goeree • Very dry circumstances • Calcareous dune grasslands • Rapid increase of shrubland • Still lots of good quality dune grasslands
  16. 16. Vuurtoren Actions • Shrub removal: 13 ha • Mowing of rough dune grassland: 25 ha • Very detailed work to spare dune grasslands in good quality
  17. 17. Vuurtoren Main improvements • 25 ha calcareous dune grasslands (H2130) restored • Quality of H2130 improved • Target species (a.o.): – European turtle dove (Streptopelia turtur) – Sand lizard (Lacerta agilis) – Carline thistle (Carlina vulgaris)
  18. 18. Sub area Stekelhoek Voornes Duin • Dense shrubland • Sandy slopes • Steep slopes • Dune slacks covered by shrubland
  19. 19. Stekelhoek Actions • Removal of 17 ha of shrubs and trees • Sod cutting of 9000 m2 of dune slacks • 3500 m3 of soil burried in the coastal defence zone • 2,2 kilometers of fence
  20. 20. Stekelhoek Main improvements • Connection with other dune restoration project – exchange of species – connected landscape (H2130) • Humid dune slacks (H2190) and dune grasslands (H2130) • Target species (a.o.): – Round-leaved wintergreen (Pyrola rotundifolia) – Marsh helleborine (Epipactis palustris) – Common twayblade (Neottia ovata) – Blue winged grasshopper (Oedipoda caerulescens) – Queen of Spain fritillary (Issoria lathonia).
  21. 21. Sub area Quackjeswater Voornes Duin • Dune lake – Eurasian spoonbill (Platalea leucorodia) – Little egret (Egretta garzetta) – Black-necked grebe (Podiceps nigricollis) • Isolated dune grasslands • Humid dune slacks • Aspen expansion • Shrubland increase
  22. 22. Quackjeswater Actions • Shrubs and trees: 12 ha removed • 3200 m2 top soil removement in dune slacks • 2700 m3 of soil removed • 3,3 kilometers fencing
  23. 23. Quackjeswater Main improvements • Connection with other dune restoration project – exchange of species – connected landscape (H2130) • Humid dune slacks (H2190) and dune grasslands (H2130) • Target species (a.o.): – Yellow-wort (Blackstonia perfoliata) – Seaside centaury (Centaurium littorale) – European stonechat (Saxicola rubicola)
  24. 24. Sub area Strand Noord Duinen Goeree • Tiny remnants of dune grassland (H2130) • Overgrown by shrubland • Quality of shrubland with sea buckthorn (H2160) is decreasing – Overgrown by bramble
  25. 25. Strand Noord Actions • Removal of shrubs: 22 ha • Removal of 2600 m3 of top soil (shrubland with a thick humus layer)
  26. 26. Strand Noord Main improvements • Improvement of dune grassland (H2130). • 22 ha of dune grassland (H2130) restored. • Target species (a.o.): – European rabbit (Oryctolagus cuniculus) – Northern wheatear (Oenanthe oenanthe) – Grey hair-grass (Corynephorus canescens) – Common milkwort (Polygala vulgaris)
  27. 27. Future management The work is not finished: Intensive management due to regrowth of shrubs and trees Nutrient removal in • dune grasslands (nitrogen!) • humid dune slacks (nitrogen!)
  28. 28. Future management • Mowing with machines – dune slacks – dune grasslands • Mowing manually – slopes – regrowth of shrubs and trees • Grazing – extensive, year round.
  29. 29. Communications Strategy Excecution Means
  30. 30. Communications No platform for bawlers Individual contacts
  31. 31. Communications Intern: Own staff Volunteers Supporters Extern: Targeting audience
  32. 32. Communications Experts a.o. St. Duinbehoud
  33. 33. Communications ‘Green’ organizations Voorne & Goeree: -Zuidhollands Landschap -KNNV -IVN -Staatsbosbeheer -RAVON -Sticht. Natuur- en Landschap Voorne Putten -Vereniging Natuur- en Landschap Goeree- Overflakkee -WNF afd ZH Eil. -WBE’s Voorne & Goeree
  34. 34. Communications Visiting clubs & associations -Scouting -Atletiekver. De Stelle Runners -Nordic Walking Fitt Up -Meer bewegen voor ouderen -De Stelle Vrouwen -Vrouwen rondom Goeree -Chr. Vrouwenver. CVB -Vrouwengespreksgroep
  35. 35. Communications Residents
  36. 36. Communications Production & distribution DVD Voornes Duin
  37. 37. Communications Flyer
  38. 38. Communications Displays
  39. 39. Communications Newspaper
  40. 40. Communications Work in progress; information
  41. 41. Communications on machinery
  42. 42. Communications Website
  43. 43. Communications Local & nationwide media
  44. 44. Communications Permanent information panels
  45. 45. First results: an impression T=1 Waterbos finished T=1 in the other sub areas in 2015 First results of the Waterbos area are promising Results in nearby reference areas with comparable restoration measures are encouraging
  46. 46. First results: an impression Sub area Waterbos: Before measures: 44 plant species of the Red List present Months after the project: already 59 plant species of the Red List present Many species have expanded their distribution and numbers have been increased Quote of a report of an external party (Van der Goes en Groot, 2012): “Big areas of the forest in the west and north have been removed. Also, many shrubland in the west part has been removed. Lower parts have been sod-cut. Those places are filled with water in spring and they already contain well developed vegetations of common stonewort (Chara vulgaris) and a few bristly stonewort (Chara hispida).Various-leaved pondweed (Potamogeton gramineus) has established in pools. Development can be really quick, proved by recolonization of several species within just a few months: yellow-wort (Blackstonia perfoliata), seaside centaury (Centaurium littorale), distant sedge (Carex distans), sea milkwort (Glaux maritima) and even bog pimpernel (Anagallis tenella)”. Van der Goes en Groot, 2012: “People have been enthusiastic about the humid dune slacks. And not without reason. The restored valleys show a splendid development. The quality of these areas is improving. The first results of the area Waterbos are very promising”
  47. 47. First results: an impression What else can we expect in the LIFE DDR project area? Reference areas in Voornes Duin: Vogelpoel (restoration project 2007) De Pan (restoration project 2005) Quality and surface of H2130 and H2190 has been improved. Recolonization of (amongst others): bog pimpernel (Anagallis tenella), variegated horsetail (Equisetum variegatum), bee orchid (Ophrys apifera), Grass-of-parnassus (Parnassia palustris), small-fruited yellow-sedge (Carex viridula), yellow-wort (Blackstonia perfoliata)
  48. 48. Conclusions Habitat restoration works Thanks to LIFE we managed to reach our goals Threats still exist: intensive management afterwards remains necessary Do not underestimate the importance of proper communication Monitoring might be improved: landscape processes
  49. 49. Thank you for your attention. Questions?
  50. 50. Excursions Please choose: Location 1: De Pan / Stekelhoek / Quackjeswater Guides: Wouter van Steenis, Matthijs Broere Emphasis on ecology Location 2: Waterbos Guides: Gert de Groot, Ted Sluijter Emphasis on technical issues and communication Both excursions will depart from the parking lot at 13:00 h and will return around 16:00 h.

×