Larch bark provides the most effective sound absorption in noise pollution of cities. This conclusion was made by biologists from University College London (UCL).
Trees play a critical role in controlling noise pollution in cities. During the study, scientists from the UK analyzed 76 samples of 13 tree species, studying the characteristics of their bark, including to control noise pollution.
In laboratory tests, scientists analyzed common tree species in urban areas, such as cherry, pine, beech, willow, poplar and alder. It turned out that conifers are much more effective for absorbing sound than deciduous trees since their bark layer is much thicker.
Larch has become a leader in these characteristics. Scientists note that the city authorities could plant the parks precisely with larch trees, not only because they are the most soundproof, but also because they have dense branches enough to protect from the hot sun.