Subproject 4


Restoration of urban biodiversity and ecosystem services to improve climatic resilience and invasion resistance

Urban green infrastructure is significant for mitigation of climate change in cities as vegetation reduces temperatures and increases humidity. Further ecosystem services include stormwater retention, reduced erosion, carbon sequestration, maintenance of nutrient cycles and increased biodiversity. Moreover, urban vegetation is crucial for human recreation. Green infrastructure is challenged by extreme weather, invasive alien species and economic constraints of management. 

Natural and designed plant communities are being investigated regarding their influence on ecosystem functions under different climatic scenarios. 

Ecological aspects are not suffiently covered by current planning of green infrastructure. Therefore, the aim of subproject 4 is to study the effects of natural and designed plant communities on ecosystem functions under different climatic scenarios and in interaction with invasive alien plants. The experimental plant communities are recruited from the native species pool. The response variables will be investigated along a climatic gradient in 20 urban landscapes in Bavaria, as well as in common garden and climate chamber experiments under different temperature and soil moisture regimes with and without invasive alien species. 


The results of the project contribute to an improved knowledge and more effective application of ecological theory on grassland resilience and invasion resistance in urban green infrastructure. The economic benefits are reduced costs for maintenance of urban vegetation and improved adaptation of Bavarian cities to climate change.

Principal investigator: 

Prof. Johannes Kollmann

Chair of Restoration Ecology

Technical University of Munich

School of Life Sciences Weihenstephan

Emil-Ramann-Str. 6

85354 Freising-Weihenstephan

Tel: +49 8161 714144