@InProceedings{AlvesEscaScheSilv:2002:AsEvLa,
               author = "Alves, Di{\'o}genes S. and Escada, Maria Isabel S. and 
                         Scherer-Warren, Morris and Silveira Jr., Jos{\'e} C.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Assessing the evolution of land use in Brazilian Amazonia",
                 year = "2002",
         organization = "International LBA Scientific Conference, 2.",
             keywords = "METEOROLOGIA.",
             abstract = "Human occupation in Brazilian Amaz{\^o}nia has been accompanied 
                         by persistent changes in Amazonian landscapes, ecosystems, and in 
                         demographic and socioeconomic conditions of people settling in the 
                         newly established frontiers. In this paper, we use 1985 and 1996 
                         Census data to investigate how cattle ranching, annual and 
                         permanent crops have evolved in Amaz{\^o}nia. Our goal is to 
                         review some of the available data and discuss some characteristics 
                         of agriculture and cattle ranching that may have different impacts 
                         on land degradation and on sustainable land use. Census data show 
                         important regional differences in the relative importance of 
                         cattle and crops, frequently associated with Federal Government 
                         colonization programs but also depending on the evolution of the 
                         agrarian structure in different regions. Pastures do constitute 
                         the prevailing land use, at the same time as the total number of 
                         heads frequently increased faster then the total area of pasture. 
                         The relative area of crops decreased in some areas of agrarian 
                         reform and family agriculture colonization, while pastures 
                         increased their relative importance in such regions. At the same 
                         time, grain production and productivity have significantly 
                         increased in few areas where connections to the nation-wide grain 
                         networks were set up. In general, the data suggest a scenario of 
                         land use intensification in regions of more important settlement 
                         and agricultural production, where deforestation has also been 
                         concentrated. The analysis suggests that systematic research 
                         should be carried out on the carrying capacity of different 
                         regions and on the relationships between land use intensification, 
                         land degradation and sustainable land use.",
  conference-location = "Manaus, Br",
      conference-year = "7-10 July 2002",
           copyholder = "SID/SCD",
                label = "10270",
           targetfile = "alves_assessing.pdf",
        urlaccessdate = "10 maio 2024"
}