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Trees and ecology

Trees and ecology

Sustainability and ecology

Sustainable planting projects – and trees in particular – make a significant contribution to the natural balance in the built environment and play a role in reducing the urban heat island effect in towns and cities. Through evaporation, trees create increased humidity and help to reduce temperature and CO₂. In towns and cities, along motorways and in industrial areas, trees also ensure better air quality. Trees help in the absorption of harmful pollutants, such as VOCs, ozone, nitrogen dioxide and particulate matter.


 

Future-oriented design and planting choice

Sustainable development of public and private spaces is not only about the choice of materials and their sustainable production, it is also primarily about future-oriented design and planting choice. Again and again it is the art of looking closely at nature and creating a balance where nature sustains itself and can continue to evolve. The individuality and diversity of nature form the starting point from this perspective. As regards planting choice, this means, for example, that the natural growth and the natural conditions at the growing location of the tree should be taken into account. In this way the planting will flourish best now and in the future; and the desired green experience will be guarantee not only in the short term but also in the long term.

 

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Looking for urban trees for the future

The widely planted urban trees such as the small-leaved lime, European ash, common or Norway maple, chestnut and plane are suffering more and more from stress factors linked to the urban environment. These include soil sealing, restricted root space, mechanical damage to roots and crown, high heat reflection from buildings, emissions of pollutants and stress from urine and salt. Added to these there are the increasingly obvious consequences of climate change.

In the Urban Greenery 2021 project new and previously little used varieties of trees are being tested for heat, drought and frost resistance over twelve years. 

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Trees and ecology

Many trees are valuable for mammals, birds and insects. Ecologically interesting trees provide a safe, protected habitat for animal species. A well-chosen range enhances the ecological value and the experience of nature. For example, pollard willow is particularly valuable ecologically for squirrels, birds, bats, insects, ducks and mustelids, and oaks especially contribute to the food supply of these animals; and flowering linden trees, Cornus controversa and, of course,  Tetradium daniellii – the bee-bee tree –, among others, are important food sources for bees.

Trees for bees

Better trees, better environment

 

More and more companies and institutions recognise the importance of sustainability. Growing sustainably is not only better for the environment, it also produces better trees. On The Way To Planet Proof means working with biological methods for fertilisation and disease control, significantly reducing the use of plant protection products through the use of grass strips and flower mixtures between the trees. In addition, rain and irrigation water is collected and recycled after natural purification via the ground. In this way a balance is achieved, allowing nature to sustain itself.

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