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Nature-based solutions: Assessing the SVIKT-project
Assessing the SVIKT project. Implemented nature-based solution in Järfälla municipality By Emmy Strömsten and Lukas Nygren
This study aims to investigate the process, results, and continuation of using salix as a nature-based solution for cleaning the soil from toxins (the process of phytoremediation) in Skälby, Järfälla. The project, named SVIKT, is a pilot project exploring alternative solutions for cleaning soil from toxins, while also capturing carbon and improving biodiversity in the area. We have collected data from interviews, site visits, literature reviews, and analysis of the main actors' descriptions of the project. The report thus presents the information gathered from the main actors and then assesses the challenges and successes of the SVIKT project through external research. This report thereby highlights both the potential and the complexities of implementing a monoculture of deciduous trees to perform phytoremediation. Furthermore, the paper contributes to the lessons learned, future scenarios for the site, and recommendations for similar projects in the future. Key findings of the research emphasize the complexities in speaking of carbon capture when the biomass has to be burned at a later stage in the process. Furthermore, the research highlights how salix in phytoremediation can pose an increased risk of exposure to contaminants in wildlife and nearby areas caused by the absorption of the contaminants in the leaves. However, the root system and considerable biomass of the salix in the case of SVIKT have successfully prevented the spreading of contaminants into water bodies, thus decreasing risks of eutrophication, erosion, flooding, and heat waves in the area. Hence, SVIKT can be considered a nature based solution more successful in the department of climate change mitigation rather than phytoremediation when looking into the results of the project as of now. The study therefore emphasizes the complex and unexpected benefits and risks of using salix as a nature based solution, meanwhile encouraging the initiative of striving towards a better tomorrow.
A short video. Full project report. SVIKT signpost