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Description
The elaboration of this plan is very important for the identification and prioritization of measures and investments that minimize the vulnerability of the Municipality and water resources to climate changes. This plan has an important role to the Municipal Strategy for the Climate Change Adaptation and for other municipal and intermunicipal strategies. It is also fundamental to get balance between "green" solutions (provided by nature) and "grey" solutions, as well as in engagement of population in the protection of this resources. The Plan for the Valorization and Rehabilitation of Streams and Rivers in Porto (PVRSRP) aims the protection and valorization of rivers and streams in Porto city´s in order to improve the adaptation to climate changes and reduce the vulnerability of the territory. The project plan to achieve the following goals: detailed characterization of rivers and streams; engagement and participation of all stakeholders; analysis of hazards and risks, considering different climatic scenarios; Identify and prioritize measures and investments in rivers and streams; and, promote the adaptation of water resources and the city to the effects of climate changes.
Summary of project results
The project addressed critical issues related to the impact of climate change on the city''s water resources. Porto''s rivers and streams face increasing risks due to the effects of climate variability, including more frequent and intense precipitation events, flooding, and urban heat islands.
The challenges included adapting existing water infrastructures to mitigate these risks, protecting the biodiversity and ecosystems associated with the city''s watercourses, and involving the community in the sustainable management and preservation of these resources. Additionally, the project aimed to balance "green" nature-based solutions with "gray" urban infrastructure to enhance the resilience of water systems while maintaining ecological and urban sustainability.
The project was implemented in several distinct phases, each focusing on different aspects of climate adaptation:
Baseline Assessment and Diagnosis:
A comprehensive analysis of the current state of water lines was conducted, including their ecological and structural characteristics, urban context, and vulnerabilities to climate risks. Key watercourses such as the Tinto and Torto rivers were identified as performing well due to their extensive open-air sections and location in less urbanized areas. Conversely, the Vila River, which is completely channeled and located in densely urbanized zones, showed significant challenges.Climate Scenarios and Risk Analysis:
Using climate models, the project projected future risks associated with increased precipitation intensity and identified priority intervention areas. These included highly urbanized zones prone to severe flooding, such as the Vila River and areas with structural vulnerabilities, posing threats to infrastructure, public safety, and economic activities.Development of an Adaptation Plan:
A detailed plan was created, proposing a range of adaptation measures divided into categories: flood and drought management, erosion control, sea-level rise mitigation, and general measures for watercourse rehabilitation. Key proposals included creating retention basins, promoting naturalization of open sections, and enhancing urban drainage systems with sustainable infrastructure.Monitoring and Maintenance Framework:
A robust framework for ongoing monitoring and maintenance was established, focusing on water quality, vegetation, fauna, soil stability, and debris management. The framework also defined indicators and benchmarks for assessing the effectiveness of implemented measures.Community Engagement and Communication:
The project actively involved stakeholders and the community through events such as the PVRLA Bootcamp, which brought together 86 participants from 45 entities to brainstorm innovative solutions for watercourse management. Public presentations, educational programs, and campaigns were also organized to raise awareness and promote active participation in preserving water resources.
The project delivered significant outcomes, benefiting both the Municipality of Porto and its residents:
- Resilience and Adaptation: The adaptation measures implemented under the project enhanced the city''s capacity to respond to climate change impacts, reducing risks from floods, droughts, and extreme weather events.
- Knowledge Transfer and Capacity Building: Municipal technicians and stakeholders gained valuable expertise in climate adaptation strategies, enabling more informed decision-making and policy development.
- Community Empowerment: Through events like the Bootcamp and local engagement programs, the project empowered communities, instilling a sense of responsibility and ownership over water resource management.
- Environmental and Economic Benefits: The naturalization of watercourses and improved urban drainage contribute to biodiversity conservation, reduced urban heat islands, and increased recreational opportunities, indirectly benefiting the local economy.
- Replication Potential: The methodologies and frameworks developed during the project can be applied to other municipalities facing similar challenges, ensuring the scalability and sustainability of its outcomes.