Shrub-tree species: a study of efficiency as a barrier to winds
DOI:
https://doi.org/10.46421/entac.v20i1.5881Keywords:
Thermal comfort, Vegetable barriers, Barrier to winds, Urban comfort, Open spacesAbstract
Wind control is a determining factor in obtaining thermal comfort conditions in open spaces. The present study is part of the author's doctoral research and aims to collect and analyze data on wind attenuation by plant barriers. Measurements were made for 15 shrub-tree species, located on the campus of the Institute of Technological Research (IPT), University of São Paulo (USP) in São Paulo SP. The samples studied were chosen due to the variety of species available and the different canopy densities. Isolated elements were studied, in the case of trees, or small alignments in shrubby elements. The results were analyzed using 3 approaches: considering the total incident winds, only the directed winds and the directed winds 15+, which includes only the 15 highest speeds recorded in the directed winds. In the vast majority of cases, the attenuation percentages are more representative considering only the directed winds.
References
DUARTE, D. O clima urbano e o ambiente construído. In: GONÇALVES, J.C.S; BODE, K. Edifício Ambiental. São Paulo: Oficina de Textos, 2015. p. 155-179.
CORBELLA, O.; YANNAS, S. Em busca de uma arquitetura sustentável para os trópicos: conforto ambiental. 2 ed. rev. e ampl. – Rio de Janeiro: Revan, 2013. 308 p.
SODOUDI, S.; ZHANG, H.; CHI, X.; MÜLLER, F.; LI, H. The influence of spatial configuration of green areas on microclimate and thermal comfort. Urban Forestry & Urban Greening, v. 34, p. 85–96, 2018.
WU, Z.; CHEN, L. Optimizing the spatial arrangement of trees in residential neighborhoods for better cooling effects: Integrating modeling with in-situ measurements. Landscape and Urban Planning, v. 167, p. 463–472, 2017.
MONTEIRO, L.M.; NOVAES, G.; IWAI, D. Avaliação empírico-preditiva em espaços urbanos: correlações entre sensação térmica e sonora. In: ENCONTRO NACIONAL DE TECNOLOGIA DO AMBIENTE CONSTRUÍDO, Maceió, 15, 2014. Anais... Maceió: ENTAC, p. 33-42, 2014.
MONTEIRO, L.M. Relaciones entre confort acústico y térmico en espacios urbanos abiertos de la ciudad de São Paulo. Revista Latino-americana de Ambiente Construído & Sustentabilidade, v. 2, ed. 8, p. 36-55, 2021.
WU, T.; ZHANG, P.; ZHANG, L.; WANG, J.; YU, M.; ZHOU, X.; WANG, G.G. Relationships between shelter effects and optical porosity: A meta-analysis for tree windbreaks. Agricultural and Forest Meteorology, v. 259, p. 75–81, 2018.
LEE, J-P.; LEE, E-J.; LEE, S-J. Shelter effect of a fir tree with different porosities. Journal of Mechanical Science and Technology, v. 28 (2), p. 565-572, 2014.
NORD, M. Shelter effects of vegetation belts – Results of field measurements. Boundary-Layer Meteorology, v. 54, p. 363-385, 1991.
LAI, D.; LIU, W.; GAN, T.; LIU, K.; CHEN, Q. A review of mitigating strategies to improve the thermal environment and thermal comfort in urban outdoor spaces. Science of the Total Environment 661, p. 337–353, 2019.
JAVADI, R.; NASROLLAHI, N. Urban green space and health: The role of thermal comfort on the health benefits from the urban green space; a review study. Building and Environment, v. 202, 108039, 2021.
WONG, N.H.; CHEN, Y. Tropical urban heat islands: climate, buildings and greenery. London; New York: Taylor & Francis, 2009. 259 p.
LORENZI, H. Plantas para jardim no Brasil: herbáceas, arbustivas e trepadeiras. Nova Odessa, SP: Instituto Plantarum, 2013. 1120 p.
INTERNATIONAL PLANT NAME INDEX (IPNI). Disponível em: http://www.ipni.org/ipni. Acesso em: 18 fevereiro 2022.
PRADELLA, D. Z. A.; SILVA, J. W. F.; NISI, T. C. C... [et al.] Arborização urbana. São Paulo: SMA/CEA, 2015. 200 p.
LORENZI, H. (a) Árvores brasileiras: manual de identificação e cultivo de plantas arbóreas nativas do Brasil, vol.2, 3. ed. Nova Odessa, SP: Instituto Plantarum, 2009.
JBRJ – REFLORA. Disponível em: http://servicos.jbrj.gov.br/flora/search/Murraya_paniculata. Acesso em: 18 fevereiro 2022. Disponível em: https://reflora.jbrj.gov.br/reflora/herbarioVirtual/ConsultaPublicoHVUC/ConsultaPublicoHVUC.do. Acesso em: 15 maio 2024.
LORENZI, H. (b) Árvores brasileiras: manual de identificação e cultivo de plantas arbóreas nativas do Brasil, vol.3, 1. ed. Nova Odessa, SP: Instituto Plantarum, 2009.
