Inventário do patrimônio arbóreo do bairro centro norte da cidade de Dois Vizinhos - PR

Abstract

The trees’ inventory is an essential tool for the recognition, management and planning of afforestation. Thus, the present study aimed to survey the arboreal heritage of Centro Norte neighborhood from Dois Vizinhos, PR, identifying through the inventory the tree coverage per capita, assess the phytosanitary status of the arboreal heritage, analyze the main management practices of street urban trees and point out planning guidelines for it and the neighborhood management. The study were be conducted in Dois Vizinhos town, located in the Southwest of Paraná, southern Brazil. The survey of urban trees is the census qualitative and quantitative type, in Centro Norte neighborhood individually evaluated, bordered between Dom Pedro and Prefeito Dedi Barrichelo Montagner Avenues and also Castro Alves Street and Presidente Castelo Branco Avenues. The parameters evaluated are related to the characteristics of the trees, then performing the botanical identification as the scientific name, family that it belongs to and origin, it measured the total height, the first living branch height, the fork height, the crown area, and the diameter at breast height (DBH). It were still be visually analyzed the conditions of the urban environment and the management of urban trees, with respect to type of existing pavement; free area for each individual; location and building removal of trees; relationship of individuals conflict with street furniture within 2 m; type of wiring that could be affected by urban trees; pruning; quality of actions taken; quality of the canopy and trunk; inclination of the trunk; plant health; location and intensity of the attack of pests and diseases; general equilibrium; conditions of the root system; need for future interventions; and ecological interactions Later, the data were tabulated in Microsoft Office Excel [marca registrada], analyzes of qualitative and quantitative data being held, calculated rates of tree cover, vegetation index and diversity index Odum and discussed based on existing literature . Action strategies for planning afforestation in the long term for the North District Center have also been defined. In the Neighborhood 1,206 trees of 63 species and 28 families were found, and there is currently a deficit of afforestation because the neighborhood behave ároves 1371. The North District Center presented vegetation cover index of 17.3 m2 / inhabitants, the index found tree cover of 28%. Aspects of management of trees presented serious problems, requiring management actions urgently. The diversity index Odum for the neighborhood as a whole reached value of 2.01, and after being very low estimates for the direction of an appropriate urban trees came to the value of 3.34 for the neighborhood as a whole. Management actions were proposed to the neighborhood: the removal of trees that have many health problems, species with invasive potential and species with large number of individuals was also identified the need to draw up a Master Plan for Urban Forestry city of Dois Vizinhos for managing urban trees.