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Universidade Federal do Rio Grande do Norte (2013)

Degradação ambiental no município de Cerro Corá RN por técnicas de geoprocessamento

Dantas, Henrique Roque

Titre : Degradação ambiental no município de Cerro Corá RN por técnicas de geoprocessamento

Auteur : Dantas, Henrique Roque

Université de soutenance : Universidade Federal do Rio Grande do Norte (UFRN)

Grade : Mestrado em Meio Ambiente, Cultura e Desenvolvimento 2013

Résumé
The processes of occupation and evolution of natural environments as a result of a disorderly process of implementing economic practices agrosilvopastoris play today an important role in the degradation process of changing the landscape and natural resources of the semiarid Northeast. The Serra de Santana has natural elements important to the state of Rio Grande do Norte as the source of the Potengi. Therefore, this study aimed to analyze the degree of degradation in the municipality of Cerro Cora - RN. We used satellite images Landsat-5 and census data for the year 2008. The method made use of geotechnology which includes land use, NDVI, rainfall, livestock and erodibility in the evaluation of environmental degradation, as well as satellite images of Landsat TM-5, in the years 1984, 1995 and 2008, letters of NDVI, census data regarding the socioeconomic obtained from IBGE. The results showed that the absolute majority in the municipality of Cerro Cora has a low to medium susceptibility, which together represent 63.92% of the municipality, with a regression of disturbed areas and the areas of agriculture, and a recovery of the areas of Caatinga , coming to occupy currently 92% of the municipal territory. A Geographic Information System is indispensable to environmental monitoring of Cerro Cora / RN

Mots clés : Degradação ambiental ; Landsat 5 ; Uso do solo ; NDVI ;Análise temporal ; Economia ; Environmental Degradation ; Landsat 5 ; Land Use ;NDVI ;Temporal Analysis ;Economy

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