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RESUMO: A analise geoecologica busca subsidiar o planejamento dos usos e da ocupacao da paisagem em acordo com seus limites e potencialidades. A area de estudo e uma paisagem fluvial localizada a jusante da Usina Hidreletrica de Belo Monte, no Baixo Rio Xingu, a qual promove modificacoes no contexto geoecologico regional e local. O objetivo da pesquisa e entender a estrutura geoecologica de paisagem fluvial no Baixo Rio Xingu, incluindo analise das metricas dos fragmentos que compoem as unidades paisagisticas. Analisou-se a paisagem atraves de estudo sistemico e holistico de dados produzidos em atividades de campo, pesquisas bibliograficas e utilizando-se tecnicas de sensoriamento remoto e geoprocessamento. O entendimento das inter-relacoes entre os componentes da paisagem permitiu a identificacao e caracterizacao das unidades de paisagem fluvial e identificou-se que a transgressao do Oceano Atlântico sobre o Rio Amazonas possibilita o aumento e reducao diaria e pode aumentar ou diminuir sazonalmente as cotas fluviometricas do Rio Xingu, antecipando ou perdurando cheias. Palavras-chave: Fragmentacao da Paisagem; Geomorfologia Fluvial; Analise Geoambiental. ABSTRACT: The geoecological analysis seeks to subsidize the planning of the uses and occupation of the landscape in accordance with its limits and potentialities. The study area is river landscape located downstream of the Hydroelectric of Belo Monte on the lower Xingu River, which promotes modifications in the regional geoecological context. In order to understand the geoecological structure of the fluvial landscape in the lower Xingu River, including the analysis of the metrics and fragments that compose it's units. The landscape was analyzed through a systemic and holistic study of data produced in field activities, bibliographical and using remote sensing and geoprocessing techniques. The understanding of the interrelations between the components of the landscape allowed the identification and characterization of the fluvial landscape units. The transgression of the Atlantic Ocean over the Amazon River makes it possible to increase and reduce daily, and may increase or decrease seasonally the Xingu River. Keywords: Landscape Fragmentation; River Geomorphology; Geoenvironmental Analysis.

geonordeste

ESTRUTURA E FRAGMENTAÇÃO GEOECOLÓGICA DE PAISAGEM FLUVIAL NO BAIXO RIO XINGU – AMAZÔNIA CENTRO-ORIENTAL (STRUCTURE AND GEOECOLOGICAL FRAGMENTATION OF THE RIVER LANDSCAPE IN THE LOWER XINGU RIVER - CENTRAL-EASTERN AMAZON)