Urban streets florestation: a methodological approach for assessment, planning and handling of streetside green areas applied to two neighborhoods in São Paulo / A arborização na qualificação do espaço da rua: uma proposta metodológica de inventário, manejo e planejamento de verde viário em dois bairros paulistanos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

An tree qualitative and quantitative study was conducted in two closely located neighborhoods (Vila Vera and Jardim da Saude) in the southeast region of São Paulo. In spite of geographical vicinity, both neighborhoods have very different land occupation characteristics. In Jardim da Saude we found 1033 tree specimens, belonging to 72 distinct botanic species, with an average height of 8,07m and average first bifurcation height of 1.97m. Caesalpinea peltophoroides Benth was the most frequent species found (20,68% of the trees), followed by Lagestroemia indica L. (with 7,48% of the trees), and Legustrum lucidum W.T. Aiton coming in third place (with 6,89% of the trees). Those three species together account for 35.05% of the specimens. 72.80% are located in sidewalks that are between 1.00m and 2.00 m wide. Most trees have a height of 8,50 m and above. The worst health threat was termite infestation which affected 8.33% of the specimens. 13.65% were noted to have poor crown quality, 20.62% presented some indication of poor trunk quality and only 23.33% of the trees where planted in an area which enough surface permeability. 5.71% of the specimens had been pruned to prevent interference with electrical lines and crown-reducing pruning had been done in 7.74% of the trees. In Vila Vera we found limited space conditions in regards to the width of the sidewalk and also in regards to the predominant type of site utilization. Residential buildings constructions usually advance far into the sidewalk, with a driveway for access to the garages which are usually located in the front side of the building. We counted 178 trees belonging to 42 distinct botanic species, with average height of 6.31m and first bifurcation average height of 1.81m. The most common species is Caesalpinea peltophoroides Benth. (Which accounted for 24.71% of the specimens), followed by a Legustrum lucidum W.T. Aiton (with 17.24%) and Lagerstroemia indica L. in third place (with 8.62%). In this neighborhood 42.70% of the trees had a height of less than 4.5m, 12.37% were in poor health due to termite infestation, 55.62% are located in sidewalks with widths varying between 1.00 and 2.00 m, 50.0% displayed poor crown quality and 25,44% presented some indication of poor trunk quality. Only 7.87% of the specimens where planted in an area which enough surface permeability, while 16.85% where located in totally paved areas. 3.38% had been pruned to avoid interference with electrical lines and 13.48% had been crown-reducing pruned. In Jardim da Saude the average distance between trees was 16.85m, while in Vila Vera it was 38.68m. In other words, the average distance between trees is about 2.29 greater in Vila Vera than in Jardim da Saude.. Practically all the qualitative domains were found to be superior for Jardim da Saude. Vila Vera also presents greater impediments for increasing planting density due to its current space availability issues.

ASSUNTO(S)

landscape ecology arborização planejamento territorial urbano forest inventory paisagem urbana ecologia da paisagem sidewalk trees inventário florestal urban landscape urban forestry

ACESSO AO ARTIGO

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