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| Format: | Artículo científico |
| Language: | es |
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Universidad Estatal a Distancia
2020
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| Online Access: | https://www.redalyc.org/articulo.oa?id=515664454008 |
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Table of Contents:
- Ruido ambiental en áreas verdes urbanas y periurbanas de una microcuenca en Heredia, Costa Rica Danny Alfaro-Rojas Ian Portuguez-Brenes Héctor Perdomo-Velázquez Roberto Vargas -Masís Multidisciplinaria (Ciencias Naturales y Exactas) micro basin audiomoth ecoacoustics urban ecology Introduction:One of the manifestations of environmental impactscaused by urbanization is noise pollution, related to the presence of unwanted sound levels caused by human activities. These affects wildlife with discomfort, stress, and other harmful effects and mighteven include physical damage. Objective:To analyze the noise present in peri-urban and urban green areas adjacent to the micro basin of the Bermúdez River, in Heredia, Costa Rica. Methods:We installed Audiomothautomated recording equipment in six sampling sites along the micro basin. Three study sites were established in the peri-urban area and three in the urban area. Devices were programmed to record 1 minute every 10 minutes for 24 hours over 6 continuous days, twice per site. The Noise Index (SPL1) was used to evaluate the recorded sounds through sound pressure measurements. Results:The average noise levels in the urban area were significantly higher than in the peri-urban area (V=3383238, P<0,001). We found significant differences in the six sampling sites (F= 3773,65, P<0,001). Noise levels were different both day and night(F=5578,21, P<0,001 and F=1472,09, P<0,001, respectively). Conclusions:Higher noise levels occur in areas with a higher anthropicincidence, basically from urbanization, industry, construction, and transport, with a potential to affect the local wildlife. 2020 artículo científico 1659-4266 https://www.redalyc.org/articulo.oa?id=515664454008 es http://www.redalyc.org/revista.oa?id=5156 UNED Research Journal / Cuadernos de Investigación UNED application/pdf Universidad Estatal a Distancia UNED Research Journal / Cuadernos de Investigación UNED (Costa Rica) Num.2 Vol.12