期刊
ACTA AMAZONICA
卷 46, 期 3, 页码 291-302出版社
INST NACIONAL PESQUISAS AMAZONIA
DOI: 10.1590/1809-4392201505504
关键词
Remote Sensing; Tropical Deforestation; TerraClass; Image Processing
资金
- Coordination for the Improvement of Higher Level Personnel (Capes) [BEX 6083/13-3]
- UMR ESPACE-DEV
- World Bank
- Brazilian Ministry of Science Technology and Innovation
- Brazilian Ministry of the Environment
Understanding spatial patterns of land use and land cover is essential for studies addressing biodiversity, climate change and environmental modeling as well as for the design and monitoring of land use policies. The aim of this study was to create a detailed map of land use land cover of the deforested areas of the Brazilian Legal Amazon up to 2008. Deforestation data from and uses were mapped with Landsat-5/TM images analysed with techniques, such as linear spectral mixture model, threshold slicing and visual interpretation, aided by temporal information extracted from NDVI MODIS time series. The result is a high spatial resolution of land use and land cover map of the entire Brazilian Legal Amazon for the year 2008 and corresponding calculation of area occupied by different land use classes. The results showed that the four classes of Pasture covered 62% of the deforested areas of the Brazilian Legal Amazon, followed by Secondary Vegetation with 21%. The area occupied by Annual Agriculture covered less than 5% of deforested areas; the remaining areas were distributed among six other land use classes. The maps generated from this project - called TerraClass - are available at INPE's web site (http://www.inpe.br/cra/projetos_pesquisasherradass2008.php).
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