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Idea and Objectives: This case study presents first findings of the GreenCityLabHue project. The project aims at implementing an urban learning lab in the city of Hue, Vietnam, for the participatory identification and implementation of innovative nature-based solutions for the protection and improvement of urban ecosystem services and climate change adaptation. We will present urgent environmental and societal challenges for the city of Hue, including the estimated impacts of climate change and resulting disaster risks. Subsequently, we will discuss elements of the green-blue infrastructure to tackle these risks in a sustainable and environmentally just manner in the context of a proposed typology of nature-based solutions. This typology specifically shifts the focus from a European perspective towards nature-based solutions that are locally relevant to strengthen the resilience of Hue and comparable cities in Central Vietnam and/or South-East Asia.Background: Vietnam is a country that faces multiple challenges. It is a country that experiences rapid urban growth, with an estimated 50% of citizens living in urban areas by 2030 up from 35%, resulting in urban expansion that necessitates safeguarding urban ecosystem services, e.g., for the protection of human health and human well-being. Vietnam is also heavily affected by climate change. Particularly in Central Vietnam, cities face increasing risks of flooding, storms, and temperature extremes.By providing multifunctional ecosystem services and diverse benefits, nature-based solutions—and in particular green-blue infrastructure elements—may help to address the aforementioned environmental and societal challenges in a sustainable and integrative manner, e.g., for maintaining air quality, stormwater mitigation, climate regulation, and improving environmental equity.Hue is the capital of the Thua Thien-Hue province, located in Central Vietnam on the banks of the Perfume River. It has a population of approximately half a million people, represents a touristic and educational hotspot, and is rated a “top priority city” by the Vietnamese government. In Hue, first steps that consider strengthening the green-blue infrastructure were devised in form of the Hue GrEEEn City Action Plan. However, a more holistic urban planning approach that also addresses challenges related to climate change is still lacking. |
