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| ŠUMARSKI LIST 7-8/2022 str. 59 <-- 59 --> PDF |
Using GIS techniques for modeling of anthropogenic noise propagation generated by a chainsaw in forest harvesting Korištenje GIS tehnika za modeliranje širenja antropogene buke koju stvara motorna pila prilkom sječe šuma Abdullah E. Akay, H. Hulusi Acar, Buse Kalkan Summary Noise is an environmental pollution that negatively affects human health and reduces the performance of employees. Forest harvesting activities are one of the working environments where noise effect is intense. The most common equipment used in forest operations is chainsaw whose noise affects not only the operator but also the wildlife in the territory. The noise maps showing noise propagation can be effectively used in evaluating and controlling the noise effects. In this study, it was aimed to measure the anthropogenic noise levels resulting from the chainsaw used in tree felling and to map its noise propagation with SPreAD-GIS (System for Prediction of Acoustic Detectability) which is a GIS (Geographical Information Systems) based noise prediction software. The study was conducted in Karacabey Flooded Forest within the city of Bursa in Türkiye. The results indicated that the average noise level from the chainsaw was above the danger limit (90 dBA) that causes increased physiological reactions and headache on the workers. According to the noise propagation map, the noise exposure of the employees exceeded the warning limit (85 dBA) and the maximum noise level was 95.96 dBA during the harvesting activity. In some parts of the study area, the noise level was 45 dBA or above, causing negative effects on bird species. It can be concluded that the noise maps can be effectively used to determine noise propagation generated by a chainsaw and evaluate the noise effects on the operators and as well as on the bird species in the perimeter. Key words: anthropogenic noise, noise propagation map, SPreAD-GIS, chainsaw INTRODUCTION UVOD Technological innovations, industrial developments and urbanization have provided countless important contributions and facilities to human life, but also brought some undesirable impacts on natural resources and ecosystems. Environmental pollution such as air, water, soil and noise pollutions are the leading among these impacts. One of the important elements of environmental pollution is anthropogenic noise, which is caused by vehicles (used in land, sea or air traffic), construction equipment, electrical machinery and other similar factors. Unwanted and disturbing sounds are called noise. In other words, noise is a group of complex and variable sound, which has more than one frequency component and high-pressure that disturbs human ears (Maraş et al. 2011). The main factors affecting the propagation of noise are the distance to the sound source, the absorption of the |