Open Access
ARTICLE
Species-Related Difference to Noise Reduction Between Trees in Urban Forest: The Abidar Forest Park (Case Study)
Jahede Tekeykhah1, Seyed Mohsen Hosseini2,*, Gholamali Jalali3, Jalil Alavi4, Abbas Esmaili Sari5
1 Forestry Department, Natural Resources and Marine Sciences Faculty, Tarbiat Modares University, Noor, Mazandaran, Iran
2 Faculty of Natural Resources, Tarbiat Modares University, Noor, Mazandaran, Iran
3 Associate Professor of Forestry Department, Tarbiat Modares University, Noor, Mazandaran, Iran
4 Forestry Department, Tarbiat Modares University, Noor, Mazandaran, Iran
5 Department of Environmental Science, Tarbiat Modares University, Noor, Mazandaran, Iran
* Corresponding Author: Seyed Mohsen Hosseini. Email: .
Sound & Vibration 2019, 53(6), 263-276. https://doi.org/10.32604/sv.2019.07157
Abstract
Sound pollution is one of the most important urban problems which
endangers mental and physical health of the residents. This study was aimed to
assess the influence of different tree species, including
Fraxinus rotundifolia,
Robinia pseudoacacia,
Platanus orientalis,
Platycladus orientalis, and
Pinus
eldarica, in reducing noise pollution in the Abidar Forest Park. A further objective was to identify the contaminated areas of Sanandaj city and to propose suitable noise absorbent tree species in consistent conditions. For each tree stands
the noise measurements were performed during intervals at frequencies of 250,
500 and 1000 Hz, besides an open area with the same topography. With regards
to the second purpose, a total of 50 stations with residential, commercial, residentialcommercial, and green space applications were selected across the city. Equivalent
Continuous Sound Pressure Level (Leq) was determined in five replicates for 30
min. The measurements were performed under stable weather conditions and low
wind velocity at 17:00 (traffic peak) in summer and fall. All of the Leq values were
above the threshold noise level. The highest noise reduction was recorded in summer
(i.e., green season);
Platanus and
Platycladus species demonstrated the highest and
lowest noise absorption (31.43 dB and 22.28 dB, respectively). Furthermore, a
meaningful difference was observed between Leq values of commercial, residential,
commercial-residential, and green space urban applications, and the central parts of
the city showed noticeable noise pollution. Taken together, due to being exposed to
higher than the acceptable threshold noise level, the residents of Sanandaj will be
endangered to health problems in the near future; thus consideration should be given
to the noise pollution sources.
Keywords
Cite This Article
Tekeykhah, J., Hosseini, S. M., Jalali, G., Alavi, J., Sari, A. E. (2019). Species-Related Difference to Noise Reduction Between Trees in Urban Forest: The Abidar Forest Park (Case Study).
Sound & Vibration, 53(6), 263–276.