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Climate trees are urban trees: the best species for urban use

Urban trees are an important part of our cities and help regulate the microclimate, provide shade and filter emissions from the air and soil. They are also habitats for typical urban bird and insect species. However, they are exposed to extreme conditions due to soil compaction and sealing, urban climate (overheating, drought), air and soil pollutants, road salt and artificial light. Due to the effects of climate change, the site conditions of our urban greenery are deteriorating even further. Some established species are already showing clear problems due to the changed conditions. Also problematic is the expected increasing immigration of new harmful organisms resulting from the shift in climate zones. Some of the products that are suitable for use as urban trees and which we would like to highlight here are Acer campestre (Field maple), Carpinus betulus (Common hornbeam), Cornus mas (Cornelian Cherry), Liquidambar styraciflua (Amber tree), Quercus palustris (Swamp oak) and Tilia europaea (Common Lime).

The importance of urban trees in climate change is becoming increasingly important. To ensure that urban trees can continue to fulfil their numerous functions without restriction in the future, species and site selection should be oriented towards the coming urban climatic conditions. A qualified site factor analysis and targeted tree species selection enables the plants to reach a higher age and to develop their welfare functions (climate comfort, air hygiene, aesthetics) with high effect. Last but not least, this reduces the expenditure of the municipality for maintenance and replacement plantings.