11. Departure point for the AMB administration:
learn to construct dunes and to maintain them because
they are a beautiful instrument of brandscaping, a
hot-spot of biodiversity, and protect coastline and its
economic activity from storms and sea level rise
13. The difference is that ecosystem services
concept is really an explicit management tool
14. Physical processes & dune construction
As we discovered that wind still
keeps it’s ability to erode dunes
15. Physical processes & dune construction
We have learned which one is the prevailing constructing-eroding wind
16. Physical processes & dune construction
We have
developed a new
system to
transform
marram grass
plantings into
efficient sand-
trapping systems
Marram grass as natural capital (dune builder)
17. Physical processes & dune construction
As LIDAR and satellite images has become so precise
18. Physical processes & dune construction
We are modelling 2100 scenarios for Sea Level Rise for different processes
19. Physical processes & dune construction
And we have been able to cross
and analyse different
parameters
20. Physical processes & dune construction
Some explicit spatial relationships between emerged sand volume and
beach width (surface of beach cells corresponding to 100m segments).
21. Physical processes & dune construction
A precise cartography of where the beach width is not enough to keep 5m2/person (and
maximum measured densities of 500 persons/100m beach length).
22. Physical processes & dune construction
A precise cartography of where the beach is short of emerged sand
23. Physical processes & dune construction
Where are located regression processes from 2004
24. Physical processes & dune construction
Where there is not enough height to prevent washover
25. Physical processes & dune construction
A precise distribution of flood events and where there
is a loss of sand volume
27. Physical processes & dune construction
And crossing this information with the highest measured densities
of sun-bathers
28. Physical processes & dune construction
And with dwelling density. Our model shows over 16,000 dwellings.
If each one has an average price of 200.000,00€ total worth is
3.200.000.000,00 €
If the impact of loss of beach quality on property prices can be millionary!
32. Socio-cultural and economic processes
Some big trade-offs
An average dog
produces daily 0,3kg of
solid excrements and
0,75 ltrs of urine.
Dog excrements are a
dangerous source of
Esterychia coli. Some of
the strains being
resistant to antibiotics.
E coli is main source of
cystitis.
There are more than
5,000 dogs visiting
daily the beaches
35. Socio-cultural and economic processes
The role of social networks as a source of information and to
generate conversations
36. Governance and administrative processes
The Metropolitan Administration of Barcelona has to provide beaches with dry
and clean sand. So flood and erosion risks is a big issue.
38. Governance and administrative processes
As the model is not
functioning, each year a
million euros is spent
just accumulating sand
where is not needed
and without preventing
coastal erosion.
The AMB keeps
struggling with a shifting
coastline and without
legal instruments to
solve the problems.
39. Governance and administrative processes
There is one engineering company funded by the central
administration which does more than 90% of coastal defence
and dune management projects.
So, in a regime of monopoly innovation
is very limited and efficiency efforts
inexistent.
40. A retraslocation of only
6.000m3 of emerged sand
has proved to be much
more efficient & effective
A proposal made by us and executed by coastal
administration is working quite well!
41. And a previous project done at Calafell (50km south)
beach will work at Castelldefels.
42. Adaptive management of emerged sand & constructed ecosystems
So, a tiny plant can compete
and win over conventional and
expensive methods of coastal
defence.
43. So, Ecosystem services concept can be quite useful
for the decision environment of complex
landscapes