Urban Transformations towards Blue-Green Infrastructures

Project description

The UT-UBGI project (“Urban Transformations towards Blue-Green Infrastructures”) aims to drive urban transformations through sustainable and future-oriented measures. The project focuses on the development and implementation of blue-green infrastructure that combines ecological and social benefits to make cities more resilient and livable. Using a transdisciplinary approach, scientific knowledge is combined with practical applications to develop concrete solutions for urban practice. A key focus of the project is to investigate and define sustainable strategies that clearly outline the scope and limits of blue-green measures at the urban level. In addition, urban narratives and potential conflicts that may arise during the implementation of blue-green infrastructure are analyzed. This will support the development of effective solutions and their acceptance by the population.

In parallel to the priorities mentioned above, the work package led by KIT-ITAS will quantify the performance of this infrastructure by making its diverse functions, such as urban cooling or the promotion of biodiversity, measurable and evaluating them. Particular attention will also be paid to the water demand for such measures to ensure the sustainable use of this resource. To this end, two tree species with contrasting drought resistance from the tree population of the KIT Campus South and the Leipzig Helmholtz Centre for Environmental Research will be equipped with different sensors and exposed to different irrigation situations. The monitoring and evaluation of sap flow, tree radial growth, fine root growth, and microclimatic aspects such as air temperature and relative humidity under the tree canopy will contribute to the development of new blue-green infrastructure concepts.

Overall, the UT-UBGI project is characterized by the combination of transdisciplinary methods, the partnership with German model cities, and the compilation and development of practice-oriented recommendations that municipalities and cities throughout Germany can use. In synthesizing research, practice, and interdisciplinary collaboration, the UT-UBGI project makes an essential contribution to sustainable urban transformation by providing potential solutions to the challenges of climate change and improving the quality of life in cities.

Publications


2025
Posters
Fröhlich, K.; Friesen, J.; Dev Roy, S.; Benz, S.; Chakraborty, T.; Totzki, J.; Saha, S.
Tree monitoring as tool in urban transformation towards Blue-Green infrastructure
2025. European Geosciences Union General Assembly (EGU 2025), Vienna, Austria, April 27–May 2, 2025. doi:10.5194/egusphere-egu25-10826 
Fröhlich, K.; Friesen, J.; Roy, S. D.; Benz, S.; Chakraborty, T.; Totzki, J.; Saha, S.
Long-term ecological monitoring of city trees as tool in urban transformation towards Blue Greeninfrastructure
2025. European Forum on Urban Forestry (EFUF 2025), Zurich, Switzerland, June 3–7, 2025 
2024
Presentations
Saha, S.; Fröhlich, K.
Developing strategies for reducing the tradeoffs between ecosystem services, climate change adaptation, and mitigation
2024. Project kickoff meeting presentation of project "Urban Transformation towards Blue Green Infrastructure (UT-UBGI)", UFZ-Leipzig (2024), Leipzig, Germany, November 11, 2024 

Contact

Dr. rer. nat. Somidh Saha
Karlsruhe Institute of Technology (KIT)
Institute for Technology Assessment and Systems Analysis (ITAS)
P.O. Box 3640
76021 Karlsruhe
Germany

Tel.: +49 721 608-24644
E-mail