Campagna & Porceddu - Input2012
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Urbanisation processes in landscape protected areas M. Porceddu M. Campagna [email protected] [email protected] in landscape protected areas in Sardinia by Manuela Porceddu, Michele Campagna
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Manuela Porceddu and Michele Campagna "Urbanisation processes in landscape protected areas in Sardinia"
Transcript of Campagna & Porceddu - Input2012
Urbanisation processes
in landscape protected areas
M. Porceddu
M. Campagna
in landscape protected areas
in Sardinia
by
Manuela Porceddu, Michele Campagna
Context
�Where:
Landscape protected areas by Law 1497/39 in the Island of Sardinia
�What:
Strong anthropogenic pressure
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�How:
Preliminary assessment of past and current urbanisation processes in
these protected areas based on Sardinian Regional SDI spatial data
�Why:
Supporting the update of existing protection strategies and measures
within the framework of the Regional Landscape Plan (RLP)
National level
Landscape protection framework
International level
� 2000: European Landscape Convention (ELC)
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� 2004: Decree n°42 (“Urbani Code”)
�1999: Legislative Decree n° 490
�1985: Law n° 431 (“Galasso”)
�1939: Law n° 1497
�1922: Law n° 778
“Piano Paesaggistico Regionale”
“Piano Paesistico”
“Piano Territoriale Paesistico”
(no plan)
RLP
(2006)
First PTP
(1979)Sardinian PTP’s
(1993-2006)
Landscape protection framework - Plans
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“Molentargius - Monte Urpinu”
“PTP n. 14 - Isole di
S.Pietro e S.Antioco”
“Ambito n. 1 -
Golfo di Cagliari”
Urbanisation processes
�Historic centres
�Urban growth before 1950
�Urban sprawl after 1950
�Tourist settlements
�Major industrial areas, Production and
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Landscape protected
areas by Law 1497/39
in Sardinia
Commercial sites
�Quarries and Mines
�Military sites and Major structures of public services
�Infrastructures
�Artificial water bodies
� Transport Infrastructure networks (Roads, Railroads)
and nodes
�…
5%
95%
Urbanized areas
according to the
classification of the RLP
Rest of the landscape
Urbanisation processesUrbanised surfaces identified in RLP
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1,5%
0,3%1,8%
0,2%
0,4%
1%
Urban centres
Tourist settlements
Major industrial areas, Production and
Commercial sites
Quarries and Mines
Military sites and Major structures of
public service
Roads, Railroads (occupied surface)
Sardinia Landscape
protected areas
2,5%
1,5%
0,5%
0,2%
0,1%
0,5%
Urbanisation and sprawlMain cities and towns
Main urban sprawl drivers:
� the post-II World War urban expansions (until the late 1950s)
� the attempts to implement strategic planning by the so-called
“Piano di Rinascita” (since the 1960s).
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“Piano di Rinascita” (since the 1960s).
The analysis on a set of 29 protected urban sites (18% of the total),
shows since 1960 urban land use in landscape protected areas
has almost doubled (44%)
Landscape areas
protected by Law 1497/39
existing in 1960
Alghero
Sassari
Nuoro
Tempio Pausania
Urbanisation and sprawlGrowth in protected urban sites
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Cagliari
Nuoro
56%
44%
Urban land uses until 1960
Urban land uses since 1960
to recent period
Urbanization and sprawlTourist areas
The analysis on selected landscape protection sites affected by tourist
development shows since 1970 to 1983,
over 50% of all tourist implementation plans in Sardinia were approved and
the 96% of them lay in protected areas defined by Law 1497/39.
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Law 1497/39 and the Landscape plans
failed to give operational tools for the implementation of protection measures
allowing for changes towards not conformant land-uses
and the share of tourist settlement rate in protected areas rise up again.
Urbanization and sprawlLandscape protected areas sites in tourist coastal areas
Landscape areas
protected by Law 1497/39
sites in tourist coastal areas
0,1%
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53,7%30,6%
15,6%
Until 1970
1970 - 1983
1984 - 1997
1998 - 2004
Tourist implementation plans approved in Sardinia
since 1970 to 2004
Land-use changesRural areas
The analysis based on the Regional SDI geodatabase
(time series 2003 and 2008) concerning land-use changes in rural areas,
focuses on agricultural land, and in details on permanent crop land
(orchards and traditional crops such as olive groves and vineyards).
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(orchards and traditional crops such as olive groves and vineyards).
In 2003-2008 agricultural areas of Sardinian land decreased from 37% to 35%.
Meanwhile permanent crops increase about 18% and a similar trend was found in
landscape protected areas, though with minor change rate ( +14%).
Land-use changesAgricultural areas and permanent crops in 2003 - 2008
37%
35%
27%
26%
Trend of agricultural areas
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2003 2008 2003 2008
Sardinia
+18%
+14%
Sardinia Landscape areas
protected by Law n° 1497/39
Variation of permanent crops
Sardinia Landscape areasprotected by Law 1497/39
Landscape areasprotected by Law 1497/39
�Population positive trend along time
�1991-2001: decrease in population (–1% in Sardinia, -7% in
landscape protected areas ), increase in the number of the
Population dynamics and residential occupancy
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houses (+15% in Sardinia, +3% in landscape protected areas)
and in the number of houses occupied by non-residents
(from 25% to 27% in Sardinia, and from 47% to 50% in
landscape protected areas)
�2001: 20% of total regional population was living in
landscape protected areas.
Issues
� Overall lack of efficacy in the implementation of the landscape protection policies
given by the national legislative framework in the last 70 years, particularly with regards
to urban and tourist settlements growth
Conclusions (I)
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� Negative population growth rate paralleled by the increase of real estate stock shows
a decreasing occupancy rate, particularly in landscape and natural protected areas
Opportunities
�The recent development in Italian legislation for landscape protection and the current
update of the RLP may allow to amend past practices towards a more careful
implementation of landscape safeguard policies
Conclusions (II)
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� The Regional SDI was proven to enable analyses for the assessment of the impacts of
past and current spatial development policies
�Further coordinated actions to promote sustainable rural land use
