@InProceedings{SáTaurCunhSá:2009:MaCaCo,
               author = "S{\'a}, I{\^e}do Bezerra and Taura, Tatiana Ayako and Cunha, 
                         Tony Jarbas Ferreira and S{\'a}, Ivan Ighour Silva",
          affiliation = "{Embrapa Semi-{\'A}rido - PE} and {Embrapa Semi-{\'A}rido - PE} 
                         and {Embrapa Semi-{\'A}rido - PE} and {Embrapa Semi-{\'A}rido 
                         Bolsista CNPq - PE}",
                title = "Mapeamento e caracteriza{\c{c}}{\~a}o da cobertura vegetal da 
                         Bacia Hidrogr{\'a}fica do S{\~a}o Francisco",
            booktitle = "Anais...",
                 year = "2009",
               editor = "Epiphanio, Jos{\'e} Carlos Neves and Galv{\~a}o, L{\^e}nio 
                         Soares",
                pages = "6305--6312",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 14. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             keywords = "remote sensing, image processing, sensoriamento remoto, 
                         processamento de imagens, vegetation mapping, mapeamento da 
                         vegeta{\c{c}}{\~a}o, S{\~a}o Francisco basin, Bacia do S{\~a}o 
                         Francisco.",
             abstract = "This work present the mapping and characterization of vegetation 
                         cover and use of land in the watershed of S{\~a}o Francisco, the 
                         methodological procedures used in preparing the map and 
                         descriptions of the classes of the legend of vegetation. The image 
                         used was satellite Landsat 7 ETM +, with its colorful compositions 
                         in the bands RGB/543 and RGB/453. In addition to the steps of 
                         pre-processing was used Normalized Difference Vegetation Index - 
                         NDVI to separate vegetation above the ground and determine the 
                         density of vegetation cover classes of mapping. Noted the 
                         predominance of vegetation cover Savanna with 33% of the area, the 
                         steppe Savannas by 26% and a significant area of contact with the 
                         steppe-like Savannas seasonal forest, the order of 4%. During the 
                         implementation of the work were detected several environmental 
                         problems in different physiographic regions of the basin, 
                         especially the deforestation, mainly the gallery forest, the fires 
                         on a large scale, the inappropriate use and occupancy of land, and 
                         the release of untreated sewage directly into the river.",
  conference-location = "Natal",
      conference-year = "25-30 abr. 2009",
                 isbn = "978-85-17-00044-7",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "dpi.inpe.br/sbsr@80/2008/11.07.17.41",
                  url = "http://urlib.net/ibi/dpi.inpe.br/sbsr@80/2008/11.07.17.41",
           targetfile = "6305-6312.pdf",
                 type = "Mudan{\c{c}}a de Uso e Cobertura da Terra",
        urlaccessdate = "20 maio 2024"
}