City tree
A city tree is a tree that fulfills a special function in urban space, for example by creating space , creating a certain microclimate or creating a biotope .
City tree is a topographical term whose defining word names the living space ( city ) and whose basic word is a general botanical term ( tree ). Word formations in the same category are, for example, park trees , meadow flowers , balcony plants or the proverbial wallflower (not to be confused with the same botanical and zoological names such as water lily , marsh marigold , alpine chough, etc.)
The long-lived trees contrast with the fast-moving city. This is why they often have a difficult time. In general, they are an indicator of the quality of life in their environment. Few or no old specimens suggest unfavorable conditions; many healthy old trees, on the other hand, speak for favorable living conditions in the city.
In the conflict of interest between the usefulness of city trees (air filter, noise protection , oxygen production, image factor, etc.) and practical requirements ( city planning , light, visibility, security, etc.), the trees are mostly "designated" in the city park or city forest and concentrated there.
But urban planners are beginning to pay more attention to trees in the street space. There are reasons for this: First of all, there is a growing awareness of the public, politicians and urban planning experts for the environmental problems of cities, from which urban trees can benefit. In particular, the EU guidelines on fine substances give reason to pay greater attention to city trees. New studies as part of the European research project Benefit of Urban Green Space (BUGS) have shown that trees contribute efficiently to reducing the amount of fine particles. Since the fine particles guidelines in several European cities have already led to extensive and highly emission-rich building projects having to be shut down, investors are now interested in measures to reduce the amount of fine particles, which increases the opportunities for urban trees.
The second is the growing preference of people looking for apartments for greenery in the immediate vicinity of the apartment. Investigations into the motives for choosing an apartment repeatedly result in the first priority for greenery and closeness to nature. Against this background, the tendency among some urban planners can be understood to programmatically explain even the dense city as a form of nature and to speak of the biotope city . In the densely populated cities, trees are one of the few inexpensive ways to generate more greenery. City trees are thus proving to be value-adding factors on the housing market. One can therefore certainly speculate that the city tree will play a greater role again in the future.
Web links
City trees under stress on www.waldwissen.net