1. General information
Location and description of the intervention
City or FUA
Lisboa (FUA)
Region
Europe
Native title of the NBS intervention
Miyawaki Mini-floresta no Areeiro
Short description of the intervention
In Lisbon's Areeiro district, Urbem, a non-profit organization, is leading the creation of a 2500m2 Miyawaki mini-forest in Casal Vistoso Urban Park. This initiative involves densely planting native species to rapidly establish a diverse, self-sustaining forest ecosystem. Supported by the Lisbon City Council, the project aims to enhance urban biodiversity, improve air quality, and contribute to climate resilience. Volunteers from the local community play a crucial role in every stage, from preparing the land to planting and maintaining the forest. Despite initial challenges, such as a 40-50% plant survival rate, the forest is expected to become self-sustaining within three years. The project focuses on environmental restoration and seeks to engage and educate the community, fostering a sense of ownership and connection to these new green spaces (Ref 1; Ref 2; Ref 3; Ref 4).
Implementation area characterization
Ecosystem
Address

1600-063 Lisbon
Portugal

Area boundary (map-based)
Total area
2500.00m²
Area description
Type of area before implementation of the NBS
Timeline of intervention
Start date of the intervention (planning process)
2021
Start date of intervention (implementation process)
2021
End date of the intervention
2025
Present stage of the intervention
Objectives of the intervention
Goals of the intervention
1. The project aims to increase biodiversity by planting a variety of native species, creating a habitat for local fauna and flora in the urban environment (Ref 1).
2. By establishing dense, self-sustaining forests, the project seeks to improve air quality, reduce the urban heat island effect, and enhance water infiltration, contributing to climate resilience (Ref 3).
3. Urbem encourages local residents to participate in all stages of the project, from planting to maintenance, fostering a sense of ownership and connection to the green spaces (Ref 2).
4. The project serves as a living laboratory for learning about ecology, sustainability, and urban forestry, engaging the community and local schools in environmental education (Ref 4).
5. The ultimate goal is to create a forest that becomes self-sustaining within three years, requiring minimal human intervention (Ref 1).
Climate change adaptation: 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?
What activities are implemented to realize the restoration goals and targets?
Implementation activities and NBS focus
Implementation activities
- Land Preparation: Trenches and channels are dug to promote water infiltration and manage rainwater runoff, addressing issues of soil dryness and poor water retention, especially during summer months (Ref 1).
- Dense Planting of Native Species: Over 1,700 trees, shrubs, and plants of 32 native species are planted using the Miyawaki method, which involves planting densely to accelerate forest growth and increase biodiversity in an urban context (Ref 3).
- Community Involvement: Urbem organizes volunteer activities at all stages—land preparation, planting, and ongoing maintenance—to engage local residents and create a sense of ownership over the forest, thereby addressing the challenge of maintaining urban green spaces (Ref 2).
- Maintenance and Monitoring: The project includes regular weeding, plant cover renewal, and quarterly monitoring of plant survival, which is crucial for managing the high mortality rates previously reported in the area (Ref 3).
- Educational Outreach: The forest serves as a platform for environmental education, involving schools and the broader community to raise awareness about urban ecology and sustainability (Ref 4).
These activities address the previous problems of sparse and underdeveloped flora, poor soil conditions, and lack of biodiversity by creating a dense, resilient forest that can thrive in an urban environment, enhancing both ecological and social benefits (Ref 3).
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Parks and urban forests
Large urban parks or forests
Amenities offered by the NBS
Design elements for well-being
Services
Expected ecosystem services delivered
Regulating services
Local climate regulation (temperature reduction)
Air quality regulation
Carbon storage/sequestration
Habitat and supporting services
Habitats for species
Cultural services
Social and community interactions
Scale
Spatial scale
Micro-scale: District/neighbourhood level
Beneficiaries
Demographics in implementation area
Unknown
Socio-economic profile of the area
Communities vulnerable to environmental hazards or climate change impacts
Unknown
Non-government actors
Non-governmental organisation (NGO) / Civil society / Churches
Primary Beneficiaries
Specify primary beneficiaries
The local residents and visitors benefit from the forests (Ref 1)
Marginalized groups
Governance
Governance arrangements
Please specify the roles of the specific government and non-government actor groups involved in the initiative
The project is run by an NGO called Urbem, which works together with volunteers. Additionally the Lisbon city council provides land and material support and wants to integrate the project into broader sustainability efforts (Ref 3)
Key actors - initiating organization
Key actors - Other stakeholders involved (besides initiating actors)
Local government/municipality
Citizens or community group
Level of citizen and community engagement
Participatory methods/forms of stakeholder involvement (all stakeholders)
Uncommon actors ("Missing actors")
Policy drivers
NBS intervention implemented in response to a Regional Directive/Strategy
No
NBS intervention implemented in response to a national regulations/strategy/plan
Unknown
NBS intervention implemented in response to a local regulation/strategy/plan
Unknown
Mandatory or voluntary intervention
Voluntary (spontaneous)
Enablers & Barriers
Please provide details (e.g, name of the plan or strategy) for the selected policies or initiatives.
The NGO itself can be seen as a change agent as it runs the project rather independently (Ref 3)
Governace and decison-making instruments
Arrangements for governance cooperation
Barriers
Unknown
Financing
Total cost
Please specify total cost (EUR)
Unknown
What is/was the Cost/Budget (EUR) of the NBS or green infrastructure elements?
Unknown
Source(s) of funding
Type of fund(s) used
Non-financial contribution
Yes
Type of non-financial contribution
Co-finance for NBS
No
Entrepreneurship opportunities
No
Business models
Business models
Which of the involved actors was motivated by this model?
Impacts, benefits
Description of environmental benefits
-Enhanced carbon sequestration: "it is estimated that a Miyawaki forest is capable of absorbing greater amounts of carbon than a conventional forest." (Ref 1)
-Lowered local temperature; Improved water quality; Increased green space area, Reduced biodiversity loss, Increased number of species present: "despite being small and localised, these forests can be home to countless native plants and various species of local fauna, strengthening biodiversity in urban centres, cooling our streets and squares, and contributing to water infiltration." (Ref 1)
Environmental impact indicators
Total number of vascular plant species protected or introduced
31 species, Over 1,700 trees (Ref 3)
Green space area created (in ha)
0.25HA (ref 3)
Economic impacts
Description of economic benefits
Unknown
Description of social and cultural benefits
-Improvement in people’s connection to nature: "The creation of a Miyawaki forest allowed them to return to their roots, to contact with a nature that they thought they could no longer find in Lisbon." (Ref 2)
-Increased support for education and scientific research: "More recently, the duo has been working with several schools in Sintra, and has developed a guide for creating Miyawaki forests in a school context, allowing the forests to become real classrooms" (Ref 2)
- Increased knowledge of locals about local nature: "these spaces play a role in the education of our citizens and, who knows, in having a greener society in the future" (Ref 4)
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
No
Presence of indicators used in reporting
Yes
Type of indicators
Presence of monitoring/evaluation reports
No evidence in public records
Availability of a web-based monitoring tool
No evidence in public records
Name of any specific impact assessment tools
Unknown
Use of GIS in mapping impacts
No evidence in public records
Cost-benefit analysis
Unknown
Justice
Community satisfaction
Description of locals satisfaction with the project
Unknown
Trade-offs & Negative impacts
Measures to prevent gentrification or displacement
High-quality & Transformative NBS
Multiple impacts delivery (climate, biodiversity, just community)
No
Goal setting and impacts delivery
No, project goals were not set, and benefits were not delivered in all 3 key areas.
Long-term perspective
Unknown: No information about the project's long-term sustainability.
Cost-effective solutions
Unknown
Equitable impacts
Application of lessons learned
Perception of Environmental Change
Unknown
References
1.
André, M. (2022). Uma mini-floresta no Areeiro, porque não?. Accessed on August 23, 2024, [Source link] [Archive];
2.
LPP (2023). Vem ajudar a plantar uma mini-floresta no Areeiro. Accessed on August 23, 2024, [Source link] [Archive];
3.
Meireles, A. (2023). Lisbon. Mini-forests are growing in Areeiro. Diaro de Noticias, Accessed on August 23, 2024, [Source link] [Archive];
4.
da Cunha (2023). What are these forests growing in the middle of the city? They are named after a Japanese botanist, Miyawaki, and they bring nature to the neighborhoods. mensagem, Accessed on August 23, 2024, [Source link] [Archive];
Comments and notes
Public Images
Image
The image shows volunteers working on the mini forests
Volunteers at work
https://amensagem.pt/2023/03/01/nasceu-dois-anos-primeira-floresta-miyawaki-lisboa-bairros-estao-pedir-mais/