Tree stands in urban noise abatement.
The aim of the study was to determine which characteristics of tree stands could be used in urban noise control and to develop guidelines for practical urban forestry. The attenuation of artificially produced noise was measured in various types of stands. The effect of tree stands on noise attenuati...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Finnish Society of Forest Science
1976-01-01
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| Series: | Silva Fennica |
| Online Access: | https://www.silvafennica.fi/article/4949 |
| _version_ | 1818126872732499968 |
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| author | Kellomäki, Seppo Haapanen, Antti Salonen, Hellevi |
| author_facet | Kellomäki, Seppo Haapanen, Antti Salonen, Hellevi |
| author_sort | Kellomäki, Seppo |
| collection | DOAJ |
| description | The aim of the study was to determine which characteristics of tree stands could be used in urban noise control and to develop guidelines for practical urban forestry. The attenuation of artificially produced noise was measured in various types of stands. The effect of tree stands on noise attenuation has been analysed using a model based on the physics of sound propagation. The results show that the excess noise attenuation caused by trees can be in good situations 60% measured in energy units, compared with the attenuation caused by geometric spreading. This is 5â8 dB. The total amount of needles, leaves and branches of a stand proved to be the most important factors in noise attenuation. However, the density and height of a stand had rather high value in predicting the behaviour of noise in tree stands. Based on multiple regression between noise attenuation and tree species composition, density and height of a stand it was developed the nomograms with which the noise level at a certain point can be predicted when the tree stand characteristics, the distance and the noise level of the noise source are known and on the opposite way. The PDF includes a summary in Finnish. |
| first_indexed | 2024-12-11T07:08:22Z |
| format | Article |
| id | doaj.art-d927afc19f4a423193777ca7f84cbf0a |
| institution | Directory Open Access Journal |
| issn | 2242-4075 |
| language | English |
| last_indexed | 2024-12-11T07:08:22Z |
| publishDate | 1976-01-01 |
| publisher | Finnish Society of Forest Science |
| record_format | Article |
| series | Silva Fennica |
| spelling | doaj.art-d927afc19f4a423193777ca7f84cbf0a2022-12-22T01:16:25ZengFinnish Society of Forest ScienceSilva Fennica2242-40751976-01-0110310.14214/sf.a14795Tree stands in urban noise abatement.Kellomäki, SeppoHaapanen, AnttiSalonen, HelleviThe aim of the study was to determine which characteristics of tree stands could be used in urban noise control and to develop guidelines for practical urban forestry. The attenuation of artificially produced noise was measured in various types of stands. The effect of tree stands on noise attenuation has been analysed using a model based on the physics of sound propagation. The results show that the excess noise attenuation caused by trees can be in good situations 60% measured in energy units, compared with the attenuation caused by geometric spreading. This is 5â8 dB. The total amount of needles, leaves and branches of a stand proved to be the most important factors in noise attenuation. However, the density and height of a stand had rather high value in predicting the behaviour of noise in tree stands. Based on multiple regression between noise attenuation and tree species composition, density and height of a stand it was developed the nomograms with which the noise level at a certain point can be predicted when the tree stand characteristics, the distance and the noise level of the noise source are known and on the opposite way. The PDF includes a summary in Finnish.https://www.silvafennica.fi/article/4949 |
| spellingShingle | Kellomäki, Seppo Haapanen, Antti Salonen, Hellevi Tree stands in urban noise abatement. Silva Fennica |
| title | Tree stands in urban noise abatement. |
| title_full | Tree stands in urban noise abatement. |
| title_fullStr | Tree stands in urban noise abatement. |
| title_full_unstemmed | Tree stands in urban noise abatement. |
| title_short | Tree stands in urban noise abatement. |
| title_sort | tree stands in urban noise abatement |
| url | https://www.silvafennica.fi/article/4949 |
| work_keys_str_mv | AT kellomakiseppo treestandsinurbannoiseabatement AT haapanenantti treestandsinurbannoiseabatement AT salonenhellevi treestandsinurbannoiseabatement |