Compared with rural areas, the pollution of environmental noise is much lighter than that of urban areas. When the noise propagates in the forest, it consumes part of the energy through the reflection and refraction of the leaves and branches. The pores on the surface of the leaves have uneven structures and tufts of fluff, which can also absorb the noise and reduce the noise. For squares and parks, it's a place for people to rest and play. The vegetation in these places, while considering people's aesthetic, also reduces the noise to a certain extent. In the longitudinal direction, trees, shrubs and lawns should be reasonably distributed and arranged in a staggered way. In residential areas, dense shrubs are usually planted in the inner row, and then a row of tall trees are planted outside to isolate the noise from cars on the road. The more layers of vegetation, the stronger the ability to eliminate noise. Due to different natural environment and different landscape plants in different areas, we should take measures according to local conditions.<br>
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