Português Microclimatic quality of different plant arrangements in the Setor Noroeste of Bras´ília (DF)

Abstract

The problems resulting from urbanization processes and land use and occupation alter the microclimates of cities and directly interfere with human thermal comfort. In this context, the use of different vegetation arrangements has great potential in attenuating surface temperatures. This article evaluates the microclimatic quality of SQNW 111 in the Northwest Sector of the Federal District, from the perspective of vegetation, its possible arrangements, and its attenuation of surface temperature. The methodological procedures involve analyses of climatic variables, historical climate series analysis of Brasília, and microclimatic computer simulations using the ENVI-met program version 5.0.3. The analysis of the selected area confirmed the existence of differentiated microclimates in the analyzed block and found a reduction in surface temperatures of construction materials where vegetation arrangements composed of grass and dense-canopy trees are present. The shading provided by vegetation through its integration into urban design, showing the best performance in attenuating surface temperatures where vegetation arrangements consist of ground-level vegetation + dense-canopy trees. This result supports the understanding that different vegetation arrangements have great potential in attenuating surface temperatures .