@Article{MaedaFormShim:2008:ImLaUs,
               author = "Maeda, Eduardo Eiji and Formaggio, Antonio Roberto and 
                         Shimabukuro, Yosio Edemir",
          affiliation = "Helsingin Yliopisto, Department of Geosciences and Geography, 
                         Helsinki, Finland and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Impacts of land use and land cover changes on the sediment yield 
                         in a Brazilian Amazon drainage basin",
              journal = "GIScience and Remote Sensing",
                 year = "2008",
               volume = "45",
               number = "4",
                pages = "443--453",
                month = "Oct.-Dec.",
             keywords = "land cover, land use change, Landsat thematic mapper, map, 
                         modeling, satellite sensor, sediment yield, spatial distribution, 
                         Universal Soil Loss Equation, watershed Regional Index: Amazon 
                         Basin, South America.",
             abstract = "Land use and land cover changes have as consequences several 
                         social, economic, and environmental impacts. The understanding of 
                         these changes allows a better planning of public policies in order 
                         to map and monitor areas more susceptible to environmental 
                         problems. This research presents an analysis of the land use and 
                         land cover changes of a watershed region located in the Brazilian 
                         Amazon, and an evaluation of their impacts on sediment yield. Land 
                         use/land cover maps for each of the analyzed time periods (1973, 
                         1984, and 2005) were compiled using images obtained by 
                         MSS/Landsat-1, TM/Landsat-5, and the MODIS/Terra sensors. The 
                         sediment yield modeling was performed by dividing the watershed 
                         into homogeneous subregions. Each of the subregions received 
                         average attributes that were used as input parameters for the 
                         Universal Soil Loss Equation. The results revealed that up to 
                         2005, around 40% of the study area was already deforested, 
                         replaced by agricultural activities. In some parts of the 
                         watershed these changes were responsible for an increase of up to 
                         7 ton/ha in annual average sediment yield. This study was 
                         successful in providing an assessment of the magnitude and spatial 
                         distribution of the changes.",
                  doi = "10.2747/1548-1603.45.4.443",
                  url = "http://dx.doi.org/10.2747/1548-1603.45.4.443",
                label = "lattes: 9477592433780402 1 MaedaFormShim:2008:ImLaUs",
             language = "en",
        urlaccessdate = "28 abr. 2024"
}