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Previous issue date: 2014-12-15 / A Caatinga e a Floresta Atl?ntica apresentam ampla riqueza de esp?cies, as quais podem
atender ?s exig?ncias para diversos usos. Considerando o atual n?vel de degrada??o da
vegeta??o do Rio Grande do Norte, e o crescente uso de esp?cies ex?ticas, torna-se
urgente a execu??o de a??es que visem a conserva??o da biodiversidade desses biomas.
Nessa perspectiva, utilizar esp?cies vegetais aut?ctones na arboriza??o das cidades acaba
por se caracterizar em um instrumento de conserva??o e de valoriza??o da biodiversidade
local. Diante desse contexto, o objetivo geral do presente trabalho ? reunir e fornecer
informa??es acerca das esp?cies arb?reas nativas ornamentais no estado com o intuito de
fomentar e difundir o seu uso na arboriza??o urbana. Como objetivos espec?ficos o trabalho
possui: (1) avaliar e verificar a demanda e os custos de manuten??o da arboriza??o urbana
nativa e ex?tica, comparativamente, com base em dados obtidos no estado (Cap. 1); (2)
Fornecer uma listagem de esp?cies arb?reas nativas ornamentais do estado, incluindo
esp?cies com uso j? difundido e sugerindo novos elementos com potencial ornamental (Cap.
2); e (3) produzir um guia de esp?cies arb?reas da flora nativa como um meio de divulga??o
dos resultados obtidos com conte?do acess?vel ? sociedade. A an?lise da manuten??o da
arboriza??o urbana foi realizada no Campus Central da UFRN, para o levantamento das
esp?cies nativas arb?reas ornamentais foram realizadas expedi??es a fragmentos vegetais
no estado, al?m de levantamento da literatura especializada. Como resultado, verificou-se
evidentes menores custos e menor demanda de servi?os para manuten??o da vegeta??o
nativa, evidenciando a vis?vel vantagem no uso de uma arboriza??o de composi??o flor?stica
regionalizada. O levantamento das esp?cies nativas arb?reas ornamentais levou ? sele??o
de 95 esp?cies distribu?das em 30 fam?lias, sendo 17 esp?cies (17,35%) ocorrendo
exclusivamente na Caatinga, 27 esp?cies (25,55%) na Mata Atl?ntica e mais da metade da
riqueza considerada (55,10%) ocorrendo em ambos os biomas, o que proporciona uma
diversidade dispon?vel para a composi??o da arboriza??o urbana, tanto para cidades
situadas no dom?nio da Mata Atl?ntica (81 spp.) como da Caatinga (71 spp.). A partir desses
resultados, elaborou-se uma proposta de manual de reconhecimento e cultivo de ?rvores
nativas, consistindo na etapa inicial no processo de valoriza??o do potencial flor?stico
existente com o intuito de auxiliar o desenvolvimento de uma perspectiva ambiental
regionalizada da gest?o urbana no estado / 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
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/19631 |
| Date | 15 December 2014 |
| Creators | Macedo, Bruno Rafael Morais de |
| Contributors | 08484748723, http://lattes.cnpq.br/7557922092763217, Versieux, Leonardo de Melo, 05070986686, http://lattes.cnpq.br/9905184321288831, Moro, Marcelo Freire, 00551720328, http://lattes.cnpq.br/8846683905429796, Versieux, Alice de Moraes Calvente |
| Publisher | Universidade Federal do Rio Grande do Norte, MESTRADO EM CI?NCIAS FLORESTAIS, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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