Avaliação ambiental de manguezais adjacentes aos campos petrolíferos de Macau e Serra (RN), como subsídio às medidas mitigadoras ao processo erosivo
Among the various effects caused by the climate change and human intervention, the mangrove ecosystem changes through of the years has been worth mentioning, which hasn t known which are the pros and cons for the adjacent coastal and estuarine environments yet. It happens due to the present dynam...
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| Formato: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/12929 |
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| Resumo: | Among the various effects caused by the climate change and human intervention, the
mangrove ecosystem changes through of the years has been worth mentioning, which hasn t
known which are the pros and cons for the adjacent coastal and estuarine environments yet.
It happens due to the present dynamism in these areas, besides of the difficult understanding
of the processes associated with evolution. This study aimed to environmentally evaluate
adjacent mangroves from the Macau and Serra oil fields, located on Rio Grande do Norte
northern coast, to support the mitigating actions related to the containment of the erosive
process, as well as, according to the principles of the Clean Development Mechanism
(CDM), to assess the amount of atmospheric carbon sequestered by the studied ecosystem.
An inventory was conducted through mangrouve mapping which has supplied this research,
especially regarding to the structural characterization of mangrove areas. To understand the
local mangrove behavior in a greater level detail, techniques of remote sensing, GIS and
GPS were used to make an analogy between the current and past states of the mangrove
studied, allowing to make anticipated projections for the future impacts or changes in that
region. This study combined data from multispectral LANDSAT 5 TM, Landsat 7 ETM+
with radar microwave data from SAR RADARSAT-1, which increased the interpretation
capacity of the data from optical sensor systems. The interpretations have been supported by
the data field, representing a better and innovative methodology for the environmental and
taxonomic characterization of mangrove forests considered. The results reveal that
mangroves of the Ponta do Tubarão Sustainable Development Reserve are biologically
representative areas and providing a variety of benefits, especially for local communities,
constituting the priority sites for actions development aimed at conservation. They also have
been showing the necessity to make mitigating measures in order to recover degraded areas
through reforestation or creating new areas of mangrove, as currently 7.1% of the mangrove
forests studied are dead or in an advanced state of decomposition. The amount of
atmospheric carbon sequestered proved very significant when analyzed for the whole area,
which is able to sequester atmospheric 4,294,458 Ton CO2 per year |
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