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Inventory and analysis of trees in urban areas in the Campos de Jordão resort – São Paulo - Brazil.

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Author(s):
Taís Oetterer de Andrade
Total Authors: 1
Document type: Master's Dissertation
Press: Piracicaba.
Institution: Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC)
Defense date:
Examining board members:
Roberval de Cassia Salvador Ribeiro; Maria Esmeralda Soares Payao Dematte; Ana Maria Liner Pereira Lima
Advisor: Roberval de Cassia Salvador Ribeiro
Abstract

The aim of this study was to obtain a sample inventory and to asses the present urban arborization of the Campos de Jordão city. The city has interesting characteristics due to its geographical location, hilly landscape, native vegetation, altitude sub-tropical climate and land development. In this study, 10% of the city's randomly selected neighborhoods had their trees were completely assessed. The trees were assessed and the resulting data were recorded and analyzed with the SAS statistical computer software program. Theb social and environmental conditions of municipality were also studied, as for example, the problems related to urban occupation of areas of permanent preservation. The city shows an average of 17.22 trees per linear kilometer (tree/km). Out of 13 neighborhoods assessed, 4 had no street trees, 5 showed an average of 36.5 tree/km, while the neighborhoods of Vila Capivari and Vila Fracalanza had, 91.31 and 65 trees/km, respectively. Despite the low number of street trees, the city has good arboreal vegetation within private properties. Thirty-two different species were found in the studied neighborhoods. More than half (53,7%) of the city trees are platanus while 34.1% are liquidambars and the remaining 12.2% are varied species. No damage related to root growth was observed in 53.2% of the sidewalks. Despite 64,8% of the planted trees had non-impermeable, free ground area around them, 58.4% of the buildings had front yards or were located near green areas. There has been no recent plantings in the city so protective poles and grates are not common. In most cases no obstacles which could prevent the full development of the trees were found, for instance 76.7% of the trees were planted in places without utility-lines. Only one fruit tree was found in the surveyed area. Most trees had some kind of lesion and 59.3% of the trees have been drastically pruned, although 98,2% of the trees visually analyzed seemed to be healthy. Some species were suggested for street arborization and several recommendations were made to appropriatel selection and management of arborization. (AU)