@Article{SerrãoSiSoLiSaAtSi:2019:FoDeHy,
               author = "Serr{\~a}o, Edivaldo Afonso de Oliviera and Silva, Madson Tavares 
                         and Sousa, Francisco de Assis Salviano and Lima, Aline Maria 
                         Meiguins and Santos, Cleber Assis dos and Ataide, Lorena 
                         Concei{\c{c}}{\~a}o Paiva de and Silva, Vicente de Paulo 
                         Rodrigues da",
          affiliation = "{Universidade Federal de Campina Grande (UFCG)} and {Universidade 
                         Federal de Campina Grande (UFCG)} and {Universidade Federal de 
                         Campina Grande (UFCG)} and {Universidade Federal do Par{\'a} 
                         (UFPA)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Federal de Campina Grande (UFCG)} and {Universidade 
                         Federal de Campina Grande (UFCG)}",
                title = "Four decades of hydrological process simulation of the Itacaiunas 
                         river watershed, southeast Amazon",
              journal = "Boletim de Ci{\^e}ncias Geod{\'e}sicas",
                 year = "2019",
               volume = "25",
               number = "3",
                pages = "UNSP e201900018",
             keywords = "hydrological modeling, SWAT, southeastern Amazon.",
             abstract = "The impacts of anthropogenic degradation are becoming increasingly 
                         more evident in the Amazon and are jeopardizing its environmental 
                         systems and water resources, particularly in low monitored 
                         watersheds. Thus, the use of hydrological models is necessary to 
                         gain an understanding of these impacts on Amazonian river systems. 
                         The aim of this study was to analyze the simulation of some 
                         hydrological processes in the Itacaiunas River watershed and its 
                         relation with human-induced impacts in the Southeast region of the 
                         Para state using the Soil and Water Assessment Tool (SWAT) model. 
                         SWAT modeling requires several databases, such as relief, land use 
                         and land occupation, soil type, and climatic and hydrological 
                         variables. These data are input parameters for the SWAT model. The 
                         results showed that the hydrological variables in the Amazon tend 
                         to follow the seasonal precipitation cycle, with the highest 
                         values occurring between January and June and lowest between July 
                         and November. It was evident that base and lateral flows are 
                         responsible for maintaining perennial river flow during the dry 
                         season. Regarding anthropogenic actions in the watershed, 
                         precipitation, evapotranspiration, and sediment transportation are 
                         clearly affected by environmental degradation, as well as by the 
                         replacement of forest by grassland and mining activities. The 
                         results may assist in public policy including mitigation and 
                         adaptation of environmental systems in the region. In addition, 
                         they can improve the management of natural resources in the 
                         Itacaiunas River watershed.",
                  doi = "10.1590/s1982-21702019000300018",
                  url = "http://dx.doi.org/10.1590/s1982-21702019000300018",
                 issn = "1413-4853",
             language = "en",
           targetfile = "serrao-four.pdf",
        urlaccessdate = "21 maio 2024"
}