1. General information
Location and description of the intervention
City or FUA
Barcelona
Region
Europe
Native title of the NBS intervention
Parc Natural Collserola
Short description of the intervention
The Natural Park of Collserola (about 8,000 ha) is a forested area in the hilly Northern fringes of Barcelona. Since 1987, Collserola has been managed under a special protection plan and forms part of the European FEDENATUR network that aims at protected fragile peri-urban ecosystem for both their social and ecological functions. The park is jointly managed by a consortium including the Catalan government (Generalitat de Catalunya), the Barcelona Provincial Council (Diputació de Barcelona), the Metropolitan Area of Barcelona (AMB) as well as all adjacent municipalities (Ref 1).
Address

Serra de Collserola
08980 Barcelona
Spain

Area boundary
POINT (2.014473 41.459229)
POINT (2.072346 41.385613)
POINT (2.183842 41.456969)
POINT (2.113278 41.483274)
NBS area image
Source of NBS area image
https://www.google.com/maps/
Total area
82950000.00m²
NBS area
82950000.00m²
Type of area before implementation of the NBS
Please specify “other type of area” before implementation of the NBS
Natural forest (Ref 1)
Timeline of intervention
Start date of the intervention (planning process)
pre-1990
Start date of intervention (implementation process)
2010
End date of the intervention
ongoing
Present stage of the intervention
Goals of the intervention
The intervention ultimate goal is to promote the respectful and sustainable use of this space, while preserving its natural values (Ref 1).
- Enhancing sustainable urbanisation
- Restoring ecosystems and their functions
- Developing climate change mitigation
- Developing climate change adaptation; Improving risk management and resilience (Ref. 6)
- Preserve the biodiversity of the great metropolitan green lung and promote services that are aimed at leisure for citizens (Ref. 10)
Quantitative targets
Every year objectives and quantitative targets are set and presented in the annual report. These targets are of nature: ranging from habitat loss prevention, infrastructural improvement, educational initiatives and public involvement (Ref 5).
- Noise block: a forest can have a reduction effect of up to 20 or 30 decibels, and therefore works as acoustic screens that dampen noise (Ref. 1)
- Forests near cities release oxygen (O2) and fix carbon dioxide (CO2), filter out dust particles, and reduce noise. In addition, they regulate and purify water, and the cooler air currents inside the forest help to dissipate heat and pollution produced by industries, heating systems and automobiles. (Ref. 1)
Monitoring indicators defined
Different kind of indicators are used, in the latest report (from 2015) references to animal and plant species monitoring and associated indicators were present, as well as an inventory of buildings and network elements for fire prevention through the application of GIS mapping (Ref 5). reduction of noise in decibels (Ref 1)
Please specify other climate change adaptation goal
protected fragile peri-urban ecosystem for both their social and ecological functions and improving management (Ref 1, 6)
Climate change adaptation: What activities are implemented to realize the conservation goals and targets?
Climate change mitigation: What were the goals of the NBS?
Please specify "other Climate change mitigation activity"
- protect fragile peri-urban ecosystem for both their social and ecological functions (Ref 1,6)
-implementing forest conservation: Forests near cities release oxygen (O2) and fix carbon dioxide (CO2), filter out dust particles, and reduce noise. In addition, they regulate and purify water, and the cooler air currents inside the forest help to dissipate heat and pollution produced by industries, heating systems and automobiles. (Ref. 1)
Climate change mitigation: What activities are implemented to realize the conservation goals and targets?
Habitats and biodiversity conservation: What types of conservation goals are / were defined for the NBS intervention?
What types of restoration goals are / were defined for the NBS intervention?
Implementation activities
- protection of this fragile peri-urban ecosystem for both their social and ecological functions (Ref 1,6)
-Each year different targets are set, involving different kinds of implementation activities, focusing on habitat protection, environmental education, website handling, publications, information spreading and general administration of the park. Each annual report has extensive descriptions of these activities (http://www.parcnaturalcollserola.cat/pages/memories). Many work meetings have been attended to continue analyzing the various problems that affect the strategic lines of the new one special plan, such as: hunting, definition of the area functional, uses and activities, equipment for the leisure, catalog of buildings and heritage, economic study of the plan, ecosystem services, studies of biodiversity, etc. (Ref 5)
- a self-sufficient habitat research centre created. Located in the Collserola Natural Park, in the heart of the metropolitan area of Barcelona, it has laboratories for the production of energy, food and things, and develops projects and academic programmes in association with leading research centres around the world. As part of IaaC’s commitment to promoting and advancing habitability in the world on the basis of ecological principles and to making the fullest use of all available technologies and resources, we have created a research centre focused on the idea of self-sufficiency, with a view to providing a worldwide point of reference. Valldaura Labs is an opportunity to learn directly from nature in order to bring that understanding to the regeneration of 21st-century cities (http://valldaura.net/).
-specific species planted: holm oaks are still the most typical tree found in the Collserola range. Near the holm oaks (Quercus ilex) and English oaks (Quercus robur) there are field and Montpellier maples (Acer campestre and Acer monspessulanum), and large stretches of riverbank woodland alongside the gullies and fast-flowing streams, with a lots of white poplars (Populus alba), black poplars (Populus nigra) and narrow-leaved ash trees (Fraxinus angustifolia). The fruit trees include hazel (Corylus avellana), pomegranate (Punica granatum) and wild cherry (Prunus avium). You can also find Chinese weeping willows (Salix alba) and elms (Ulmus pumila). Shrubs there include chaste trees (Vitex agnus-castus), common hawthorns (Crataegus monogyna), strawberry trees (Arbutus unedo), laurustinuses (Viburnum tinus), Mediterranean buckthorns (Rhamnus alaternus), Japanese honeysuckle (Lonicera japonica) and ivy (Hedera helix). (Ref. 2)
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Grey infrastructure featuring greens
Other
Parks and urban forests
Large urban parks or forests
Please specify "other urban green space connected to grey infrastructure"
- a self-sufficient habitat research centre. Located in the Collserola Natural Park, in the heart of the metropolitan area of Barcelona, it has laboratories for the production of energy, food and things, and develops projects and academic programmes in association with leading research centres around the world. As part of IaaC’s commitment to promoting and advancing habitability in the world on the basis of ecological principles and to making the fullest use of all available technologies and resources, we have created a research centre focused on the idea of self-sufficiency, with a view to providing a worldwide point of reference. Valldaura Labs is an opportunity to learn directly from nature in order to bring that understanding to the regeneration of 21st-century cities (http://valldaura.net/).
Please specify "other Climate change adaptation activity"
restore ecosystems and their functions (Ref 6) via the function of a forest: - Forests near cities release oxygen (O2) and fix carbon dioxide (CO2), filter out dust particles, and reduce noise. In addition, they regulate and purify water, and the cooler air currents inside the forest help to dissipate heat and pollution produced by industries, heating systems and automobiles. (Ref. 1)
Vegetation Type
Please specify how many trees were planted
Unknown
Please specify other amenities offered by the NBS
Two Gothic castles (such as, for example, the Castell Ciuró), the Church of Santa María, the remains of the town of Sierra del Moro and old farmhouses (Ref. 7)
Services
Expected ecosystem services delivered
Regulating services
Local climate regulation (temperature reduction)
Air quality regulation
Noise reduction
Carbon storage/sequestration
Water purification / filtration
Habitat and supporting services
Habitats for species
Maintenance of genetic diversity
Cultural services
Tourism
Recreation
Intellectual interactions (scientific and / or educational)
Physical and experiential interactions with plants and animals
Social and community interactions
Please specify "other provisioning service"
- Natural spaces offer a large number of resources: land to develop agriculture and pastures, drinking water, wood, medicinal, aromatic and ornamental plants, foods such as mushrooms, berries, etc. (Ref. 1)
These spaces are also a refuge for crop pollinating animals, for agricultural pest controllers and for seed disseminators (Ref. 1)
the vegetation increases the environmental humidity and helps to reduce the energy expenditure of urban spaces (Ref. 1).
- Forests near cities release oxygen (O2) and fix carbon dioxide (CO2), filter out dust particles, and reduce noise. In addition, they regulate and purify water, and the cooler air currents inside the forest help to dissipate heat and pollution produced by industries, heating systems and automobiles. (Ref. 1)
Please specify "other regulating service"
Prevention of erosion (Ref 1).
Scale
Spatial scale
Meso-scale: Regional, metropolitan and urban level
Beneficiaries
Governance
Governance arrangements
Please specify the roles of the specific government and non-government actor groups involved in the initiative
The Parc Consortium is in charge of managing and preserving the park. The Consortium of the Serra de Collserola Natural Park is a public entity with an organizational and local nature whose purpose is the management and development of the Special Plan for the Ordering and Protection of the Natural Environment of the Parc de Collserola. It is made up of the Metropolitan Area of ​​Barcelona, ​​the Diputació de Barcelona and the nine municipalities with territory in the Park: El Papiol, Molins de Rei, Sant Feliu de Llobregat, Sant Just Desvern, Esplugues de Llobregat, Barcelona, ​​Montcada i Reixac, Cerdanyola Del Vallès and Sant Cugat del Vallès. The two first administrations provide the annual budget that allows to develop the program of actions (Ref 1).
Key actors - initiating organization
Key actors - Other stakeholders involved (besides initiating actors)
Regional government
Local government/municipality
Citizens or community group
Policy drivers
NBS intervention implemented in response to an Regional Directive/Strategy
Yes
Please specify the "Regional Directive/Strategy"
Directive 92/43 / EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora provides for the creation of a European ecological network of special areas of conservation: the Natura 2000 network. In this sense, the Agreement of the Government of the Generalitat de Catalunya of September 5, 2006, which approves the proposal of places of community importance (SCI) includes the Serra de Collserola, which corresponds to the totality of the " Space included in the Plan of Areas of Natural Interest" (Ref 1).
NBS intervention implemented in response to a national regulations/strategy/plan
Unknown
NBS intervention implemented in response to a local regulation/strategy/plan
Yes
Please specify the "local regulation/strategy/plan"
This territory has been managed since 1987, within the framework of a special Protection Plan and, as from 2010, it has been consolidated and consolidated its environmental dimension with the declaration of the Natural Park.
The legal framework of the park includes:
- the Special Plan for the Protection and Environment of the Parc de Collserola (PEPCo) - 1987;
- The Plan of Spaces of Natural Interest (PEIN), approved by Decree 328/1992, of December 14, of the Generalitat de Catalunya, develops the prevision of chapter III of the Law 12/1985, of June 13, of 'Natural spaces'
- With the declaration, in 2010, of the Natural Park (decree 146/2010 of October 19), it is necessary to draft a new Special Plan, which replaces the still existing Special Plan for the Regulation and Protection of the Collserola Park Natural Environment (PEPCo ) in 1987 (Ref 1).
Mandatory or voluntary intervention
Mandatory (based on policy)
Enablers
Presence of specific city-level GI/NBS vision/strategy/plan - mentioned in connection to the project
Yes
Please specify
The City of Barcelona, with its Green Infrastructure and Biodiversity Plan up to 2020 (City of Barcelona, 2013) is implementing a range of actions to bring nature into the city. This peri-urban park is one these initiatives (Ref 6).
Presence of specific city-level GI/NBS section/part in a more general plan - mentioned in connection to the project
Yes
Please specify the general plan with GI/NBS section
The project is mentioned among other initiatives in the Barcelona Green Infrastructure and Biodiversity Plan 2020 (Ref 6).
If there is a relevant strategy or plan, please specify the theme / type of the plan.
Please specify other vegetation type
holm oaks are still the most typical tree found in the Collserola range. Near the holm oaks (Quercus ilex) and English oaks (Quercus robur) there are field and Montpellier maples (Acer campestre and Acer monspessulanum), and large stretches of riverbank woodland alongside the gullies and fast-flowing streams, with a lots of white poplars (Populus alba), black poplars (Populus nigra) and narrow-leaved ash trees (Fraxinus angustifolia). The fruit trees include hazel (Corylus avellana), pomegranate (Punica granatum) and wild cherry (Prunus avium). You can also find Chinese weeping willows (Salix alba) and elms (Ulmus pumila). Shrubs there include chaste trees (Vitex agnus-castus), common hawthorns (Crataegus monogyna), strawberry trees (Arbutus unedo), laurustinuses (Viburnum tinus), Mediterranean buckthorns (Rhamnus alaternus), Japanese honeysuckle (Lonicera japonica) and ivy (Hedera helix). (Ref. 2)

"the vegetation increases the environmental humidity and helps to reduce the energy expenditure of urban spaces" (Ref. 1).
Presence of city network or regional partnerships focused on NBS - mentioned in connection to the project
Yes
Please specify
The NBS is handled by a consortium of public actors, especially local municipalities (Ref 1).
Presence of GI / NBS research project - mentioned in connection to the project
Yes
Please specify
Valldaura – Self Sufficient Labs: is a project promoted by IaaC (Institute for Advanced Architecture of Catalonia) for the creation of a self-sufficient habitat research centre. Located in the Collserola Natural Park, in the heart of the metropolitan area of Barcelona, it has laboratories for the production of energy, food and things, and develops projects and academic programmes in association with leading research centres around the world. As part of IaaC’s commitment to promoting and advancing habitability in the world on the basis of ecological principles and to making the fullest use of all available technologies and resources, we have created a research centre focused on the idea of self-sufficiency, with a view to providing a worldwide point of reference. Valldaura Labs is an opportunity to learn directly from nature in order to bring that understanding to the regeneration of 21st-century cities (http://valldaura.net/).
Subsidies/investment for GI / NBS in the city - mentioned in connection to the project
Yes
Please specify
The project website shows an overview of subsidies and financial aid the park has been receiving (Ref 4).
Co-finance for NBS
Yes
Co-financing governance arrangements
Yes
Co-governance arrangement
Was this co-governance arrangement already in place, or was it set up specifically for this NBS?
Financing
What is/was the Cost/Budget (EUR) of the NBS or green infrastructure elements?
The budget is 6.221.648,43 € for 2020 (Ref. 1)
What are the total amount of expected annual maintenance costs?
Unknown
What is the expected annual maintenance costs of the NBS or GI elements?
Unknown
Please specify cost savings
Unknown
Please specify total cost (EUR)
The maintenance of the park requires high annual costs. 2015 marked a budget of 5.408.005,68 € (Ref 5). The budget is 6.221.648,43 € for 2020 (Ref. 1)
Source(s) of funding
Non-financial contribution
Unknown
Please specify other Business model
There is no 'business' involvement: The intervention ultimate goal is to promote the respectful and sustainable use of this space, while preserving its natural values (Ref 1). Part of the European FEDENATUR network that aims at protected fragile peri-urban ecosystem for both their social and ecological functions (Ref 1).
'Sustainability' model which is not a 'business' model.
Business models
Please specify other environmental impact
- Flora and fauna habitat: source of biological diversity and maintenance of some varieties of plants for traditional human use. These spaces are also a refuge for crop pollinating animals, for agricultural pest controllers and for seed disseminators (Ref. 1)
The presence of green spaces in cities creates shady spaces: helps to mitigate extreme temperatures, both maximum and minimum. With the evapotranspiration process, the vegetation increases the environmental humidity and helps to reduce the energy expenditure of urban spaces (Ref. 1).
Which of the involved actors was motivated by this model?
Type of innovation
Please specify social innovation
Since 1987, Collserola has been managed under a special protection plan, and the environmental objectives and concerns behind this plan were recently reinforced when the area was given the status of a Natural Park (Ref 1).
Novelty level of the innovation
Please specify novelty level of the innovation
Unknown
Replicability/Transferability
Please specify Replicability/Transferability
Unknown
Impacts, benefits
Description of environmental benefits
- Forests near cities release oxygen (O2) and fix carbon dioxide (CO2), filter out dust particles, and reduce noise. In addition, they regulate and purify water, and the cooler air currents inside the forest help to dissipate heat and pollution produced by industries, heating systems and automobiles. (Ref. 1)
- Regulation of the hydrological cycle: Plants retain rainwater and release it slowly, curbing the risk of flooding. Therefore, forests are regulators of water resources, and by extension, of climate. Forests store and purify water. Vegetation absorbs nutrients from organic waste from water, which are not toxic to plants, and in this way vegetation helps to reduce pollution and improve water quality (Ref. 1).
- Reduction of erosion: The roots of plants protect the soil from the erosive action of water and prevent landslides, while avoiding or reducing the negative effects of floods. (Ref. 1)
- Air quality: Forests are important regenerators of the oxygen we breathe, while retaining atmospheric carbon dioxide. They also filter suspended particles and retain dust. Vegetation stores CO 2, helping to minimize climate change by acting as a "landfill" of this gas responsible for the greenhouse effect. Thus, a forest absorbs 3 to 15 tons of CO 2 / ha and releases about 5 tons of O 2 per year. (Ref. 1)
- Flora and fauna habitat: source of biological diversity and maintenance of some varieties of plants for traditional human use. These spaces are also a refuge for crop pollinating animals, for agricultural pest controllers and for seed disseminators (Ref. 1)
- Noise block: a forest can have a reduction effect of up to 20 or 30 decibels, and therefore works as acoustic screens that dampen noise (Ref. 1)
- Urban microclimate regulation: The presence of green spaces in cities creates shady spaces and helps to mitigate extreme temperatures, both maximum and minimum. With the evapotranspiration process, the vegetation increases the environmental humidity and helps to reduce the energy expenditure of urban spaces (Ref. 1).
Please specify other socio-cultural impact
- Flora and fauna habitat: source of biological diversity and maintenance of some varieties of plants for traditional human use. These spaces are also a refuge for crop pollinating animals, for agricultural pest controllers and for seed disseminators (Ref. 1)
Description of economic benefits
- Natural spaces offer a large number of resources: land to develop agriculture and pastures, drinking water, wood, medicinal, aromatic and ornamental plants, foods such as mushrooms, berries, etc. (Ref. 1)
Please specify other environmental justice issue
specific habitat and food for pollinators, agricultural pest controllers and seed disseminators- Flora and fauna habitat: source of biological diversity and maintenance of some varieties of plants for traditional human use. These spaces are also a refuge for crop pollinating animals, for agricultural pest controllers and for seed disseminators (Ref. 1)
Description of social and cultural benefits
- Landscape value and discovery space: Collserola is a great leisure space with a recognized aesthetic value and an essential educational framework for a society in which the urban population increases every day. Source of inspiration and artistic development, as evidenced by the numerous artistic manifestations related to the mountains. They enable positive experiences of contact and bond with nature, and are the quintessential discovery site and learning opportunity. (Ref. 1)
- Cultural values: for centuries human communities have created strong ties with nature that have had very diverse manifestations. Nature has been a place of roots of traditions, legends and popular customs (Ref. 1).
- Natural spaces are the ideal place for seclusion, to enjoy quiet or solitude, listening to the sounds of nature or seeking silence. (Ref. 1)
- Flora and fauna habitat: source of biological diversity and maintenance of some varieties of plants for traditional human use. These spaces are also a refuge for crop pollinating animals, for agricultural pest controllers and for seed disseminators (Ref. 1)
- Natural spaces offer a large number of resources: land to develop agriculture and pastures, drinking water, wood, medicinal, aromatic and ornamental plants, foods such as mushrooms, berries, etc. (Ref. 1)
Type of reported impacts
Indicators
The park currently hosts several plant and animal species; large number of visitors are attracted every year (almost 30.000 in 2015) and hosts several environmental education activities (Ref 5).
Analysis of specific impact categories
Job creation: The NBS created ...
Environmental justice: The implementation of the NBS project resulted in ...
Negative impacts: Did the project cause any problems or concerns?
No information was found regarding negative impacts of the project
COVID-19 pandemic
The new measures agreed on July 17 2020 by the Health Department of the Generalitat of Catalonia to contain the Covidien-19 outbreak affect thirteen municipalities in the Barcelona metropolitan area and the scope of the Sierra de Marina Park, the Besòs River Park , The Baix Llobregat Agrarian Park and the Sierra de Collserola Natural Park. Consequently, organized activities are suspended in these parks until further notice. (Ref.: https://parcs.diba.cat/es/web/l-informatiu/-/xarxa-se-suspenen-les-activitats-organitzades-al-parc-natural-de-la-serra-de-collserola-parc-fluvial-del-besos-parc-agrari-del-baix-llobregat-i-parc-d)
Methods of impact monitoring
Process of recording NBS impacts
Methods used to evaluate the impacts of NBS
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
Yes
Presence of indicators used in reporting
Yes
Presence of monitoring/evaluation reports
Yes
Availability of a web-based monitoring tool
Yes
Impact assessment mechanism
Name of any specific impact assessment tools
During 2015, the GIS section has continued the close collaboration with the editor team New Special Plan of the Collserola Natural Park, PEPNAT led by the Metropolitan Area of Barcelona (AMB). It included the whole prepared basic cartographic information, good part of it coming from the Information System Consortium geography, as well as many sources: Generalitat de Catalunya, ACA, DIBA, Barcelona Regional, Virtual Office of the Cadastre, etc. (Ref. 10)
Use of GIS in mapping impacts
No evidence in public records
Citizen involvement
Citizens involvement in assessment/evaluation
Yes
Mode(s) of citizen involvement in evaluation/assessment
Please specify other modes of citizen involvement in evaluation/assessment
There's an info center in the park where visitors can go to provide comments, critiques, suggestions for improvement etc. (Ref 5).
Citizens involvement in the analysis of the assessment/evaluation
Unknown
Please specify
To prevent degradation due to the extensive use of the park and act of vandalism, a couple of years ago the administration decided to regulate the access to the park by limiting it to smaller groups of people at the time. This was decided after several comments of visitors noticing the natural area was not as well preserved as it should be and someone was damaging the local infrastructures (5).
Follow-up to the evaluation / assessment
Yes
Please specify
Many work meetings have been attended to to continue analyzing the various problems that affect the strategic lines of the new one special plan, such as: hunting, definition of the area functional, uses and activities, equipment for the leisure, catalog of buildings and heritage, economic study of the plan, ecosystem services, studies of biodiversity, etc. (Ref 5)
References
List of references
1. Parc de Collserola (no date). "Funciones y Beneficios Parque Natural". Available at: www.parcnaturalcollserola.cat (Accessed: July 29, 2020)
2. Ajuntament de Barcelona (no date). Parc de Collserola. Available at: http://lameva.barcelona.cat/en/what-to-do-in-bcn/parks-and-gardens/parc-de-collserola_92086038562.html (Accessed: July 29, 2020)
3. Diputació Barcelona (no date). Natural Park of the Serra de Collserola. Available at: http://parcs.diba.cat/es/web/collserola (Accessed: July 29, 2020)
4. Diputació Barcelona (no date). Aids and Subsidies. Available at: http://parcs.diba.cat/es/web/collserola/subvencions (Accessed: July 29, 2020)
5. Parc de Collserola (no date). "Memoria Gestio 2015". Available at: http://www.parcnaturalcollserola.cat/pdfs/memories/MEMORIA_GESTIO_2015.pdf (Accessed: July 29, 2020)
6. OPPLA (no date). Barcelona: Nature-based Solutions (NBS) Enhancing Resilience to Climate Change: Available at: http://www.oppla.eu/casestudy/17283 (Accessed: July 29, 2020)
7. Anon. (no date). "Parque de Collserola". Available at: https://www.101viajes.com/barcelona/parc-collserola (Accessed: July 29, 2020)
8. Cerrillo, A. (2019). "Collserola: una joya natural en una trastienda desordenada". Available at: https://www.lavanguardia.com/cultura/20190401/461295172394/collserola-joya-natural-trastienda-desordenada.html (Accessed: July 29, 2020)
9. Márquez-Daniel, C. (2020). "Collserola saca partido de la tregua humana". Available at: https://www.elperiodico.com/es/barcelona/20200419/collserola-saca-partido-del-confinamiento-7932518 (Accessed: July 29, 2020)
10. Adell, X. (2020). "El Parc de Collserola ganará 700 hectáreas verdes y recortará 400 de infraestructuras y equipamientos". Available at: https://www.elllobregat.com/noticia/18583/baix-llobregat/el-parc-de-collserola-ganara-700-hectareas-verdes-y-recortara-400-de-infraestructuras-y-equipamientos.html (Accessed: July 29, 2020)
Comments and notes
Public Images
Image
Parc de Collserola
Parc de Collserola
https://www.elllobregat.com/noticia/18583/baix-llobregat/el-parc-de-collserola-ganara-700-hectareas-verdes-y-recortara-400-de-infraestructuras-y-equipamientos.html
Image
Parc de Collserola
Parc de Collserola
https://www.barcelona.cat/es/que-hacer-en-bcn/parques-y-jardines/parque-de-collserola_92086038562.html