masterThesis
Espécies arbóreas nativas ornamentais do Rio Grande do Norte
Fecha
2014-12-15Registro en:
MACEDO, Bruno Rafael Morais de. Espécies arbóreas nativas ornamentais do Rio Grande do Norte. 2014. 152f. Dissertação (Mestrado em Ciências Florestais) - Universidade Federal do Rio Grande do Norte, Universidade Federal do Rio Grande do Norte, Natal, 2014.
Autor
Macedo, Bruno Rafael Morais de
Resumen
The Caatinga and Atlantic Forest exhibit great species richness, which can attend
requirements for various uses. Considering the current level of degradation of vegetation in
Rio Grande do Norte, and the increasing use of exotic species, it is urgent to perform actions
for the conservation of these biomes. From this perspective, using native plant species in the
urban forestry becomes an instrument for the conservation and enhancement of local
biodiversity. In this context, the general objective of this study is to gather and provide
information about the ornamental native tree species in the state in order to promote and
disseminate their use in urban areas. Specific aims of this work are: (1) evaluate and verify
the demand and maintenance costs of native and exotic urban forestry, comparatively, with
data obtained in the state (Cap. 1); (2) Provide a ornamental native tree species list in the
state, including species already widespread use and suggesting new elements with
ornamental potential (Cap. 2); and (3) produce a guide of native tree species as a means of
disseminating the results obtained in a way accessible to the society. Analysis of
maintenance of urban trees was performed at the UFRN's Central Campus, and the
ornamental native tree species survey was carried out through literature survey combined
with expeditions to forest fragments in the state. As a result, it was obvious that the
maintenance of native vegetation resulted in lower costs and least demand for services
highlighting the visible advantage in using a afforestation with regionalized floristic
composition. The survey of ornamental native tree species led to the selection of 95 species
belonging to 30 families, 17 species (17.35%) occurring exclusively in the Caatinga, 27
species (25.55%) in the Atlantic Forest and more than half (55.10%) occurring in both
biomes, which provides a good selection available for the composition of urban forestry, both
for cities located in the area of Atlantic Forest (81 spp.) or for those located in the Caatinga
(71 spp.). From these results, a guide for the recognition and cultivation of native ornamental
trees was prepared, consisting in the initial step in the enhancement of existing floristic
potential value with the aim to assist in the development of a regionalized perspective of
urban environmental management in the state