Diagnóstico da degradação ambiental no município de Areia Branca-RN por geotecnologias
The municipality of Areia Branca is within the mesoregion of West Potiguar and within the microregion of Mossoró, covering an area of 357,58 km2. Covering an area of weakness in terms of environmental, housing, together with the municipality of Grossos-RN, the estuary of River Apodi-Mossoró. The mun...
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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/123456789/18247 |
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| Resumo: | The municipality of Areia Branca is within the mesoregion of West Potiguar and within the
microregion of Mossoró, covering an area of 357,58 km2. Covering an area of weakness in
terms of environmental, housing, together with the municipality of Grossos-RN, the estuary
of River Apodi-Mossoró. The municipality of Areia Branca has historically suffered from a
lack of planning regarding the use and occupation of land as some economic activities,
attracted by the extremely favorable natural conditions, have exploited their natural resources
improperly. The aim of this study is to quantify and analyze the environmental degradation in
the municipality. Thus initially was performed a characterization of land use using remote
sensing, geoprocessing and geographic information system GIS in order to generate data
and information on the municipal scale, which may serve as input to the environmental
planning and land use planning in the region. From this perspective, were used a Landsat 5
image TM sensor for the year 2010. In the processing of this image was used SPRING 5.2
and applied a supervised classification using the classifier regions, which was employed
Bhattacharya Distance method with a threshold at 30%. Thus was obtained the land use map
that was analyzed the spatial distribution of different types of the use that is occurring in the
city, identifying areas that are being used incorrectly and the main types of environmental
degradation. And further, were applied the methodology proposed by Beltrame (1994),
Physical Diagnosis Conservationist under some adaptations for quantifying the level of
degradation or conservation study area. As results, the indexes were obtained for the
parameters in the proposed methodology, allowing quantitatively analyze the degradation
potential of each sector. From this perspective, considering a scale of 0 to 100, sector A and
sector B had value 31.20 units of risk of physical deterioration. And the C sector, has shown
its value - 34.64 units degradation risk and should be considered a priority in relation to the
achievement of conservation actions |
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