@Article{RochaLimaAdam:2021:FoFrLa,
               author = "Rocha, N{\'{\i}}via C. V. and Lima, Aline M. M. de and Adami, 
                         Marcos",
          affiliation = "{Universidade Federal do Par{\'a} (UFPA)} and {Universidade 
                         Federal do Par{\'a} (UFPA)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Forest fragmentation and landscape structure in the guam{\'A} 
                         river basin, eastern amazon",
              journal = "Geography, Environment, Sustainability",
                 year = "2021",
               volume = "14",
               number = "3",
                pages = "32--40",
             keywords = "Forest fragmentation, Land use, Landscape ecology.",
             abstract = "The Guam{\'a} River basin, in the northeastern state of 
                         Par{\'a}, eastern Amazon, Brazil, encompasses approximately 
                         1,200,000 hectares. It presents great economic and social 
                         importance and is under significantly changes in land use and land 
                         cover. The objective of this work was to analyze and characterize 
                         the landscape structure of this basin through landscape ecology 
                         indexes (density, size, metric variability, shape, core area, 
                         proximity indexes, and patch area index). Land use and land cover 
                         maps were developed using images from the RapidEye system through 
                         supervised digital classification. The vegetation and landscape 
                         structure were quantified in patches, classes, and land cover. The 
                         forest patches were associated with partial conservation of some 
                         areas where production sectors had not yet directly affected, or 
                         those from natural regeneration of abandoned areas, mainly 
                         pastures. The class vegetated area was the second class most 
                         representative of the Guam{\'a} River basin covered about 37% 
                         considering the total area. The basin landscape presented more 
                         than 34,000 vegetated area patches It showing that this class are 
                         very fragmented by the presence of a large number of small 
                         patches, with this the basin landscape is compromised regarding 
                         its ecological integrity, since more than half of its forest 
                         patches are in edge environments. The indexes enabled a good joint 
                         analysis of the sub-basins of the Guam{\'a} River basin, 
                         resulting in a more detailed overview of the forest fragmentation 
                         process.",
                  doi = "10.24057/2071-9388-2020-130",
                  url = "http://dx.doi.org/10.24057/2071-9388-2020-130",
                 issn = "2071-9388",
             language = "en",
           targetfile = "rocha_forest.pdf",
        urlaccessdate = "08 maio 2024"
}