Richness, diversity and tree composition in the squares of Palmas, Tocantins ; Riqueza, diversidade e composição arbórea nas praças de Palmas, Tocantins

In urban centers, the planning of urban afforestation is essential to guarantee the quality of life of citizens, with green areas and squares being strategic places to promote interaction between people, thermal comfort and the conservation of urban biodiversity. Unlike many Brazilian cities, Palmas, capital of Tocantins state, sought to incorporate in its urban planning since the beginning the delimitation of green areas and squares with the objective of ensuring thermal comfort and leisure for the population. The present study aimed to evaluate the afforestation of the squares in the urbanized blocks of Palmas Urban Plan, characterizing and quantifying the afforestation of the squares implanted in different periods and squares still without infrastructure, comparing their richness, diversity and tree composition. It was also sought to assess whether these locations are fulfilling their socio-environmental role as planned. 2,350 trees from 35 botanical families and 111 species were registered in the squares of 12 blocks in Palmas – TO state. The native species of the Cerrado were the most frequent in all square types. The Alpha and Beta diversity analyzes determined that the areas that were not deforested were the most diverse and had more similar communities, positive patterns that differ from those described for the afforestation of most Brazilian squares, a different model that must be preserved and propagated by the public authorities. ; Nos centros urbanos, o planejamento da arborização urbana é fundamental para garantir a qualidade de vida dos cidadãos, sendo que as praças são locais estratégicos para promover a interação entre as pessoas, conforto térmico e a conservação da biodiversidade urbana. Diferente de muitas cidades brasileiras, Palmas, capital do Tocantins, desde sua concepção buscou incorporar em seu planejamento urbanístico a delimitação de áreas verdes e praças com o objetivo de assegurar o conforto térmico, lazer e qualidade de vida à população. O presente estudo objetivou avaliar a ...