Hidrogeomorphologic and hidrosedimentologic analyses to compare two watersheds of Itaipu reservoir / Análises hidrogeomorfológicas para comparação de duas bacias hidrográficas contribuintes do reservatório de Itaipu

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The aim of this research was to perform hidrogeomorphologic and hidrosedimentologic analyses and comparing two watersheds that drain into the reservoir Itaipu: Iguatemi-MS and Piquiri-PR. The hidrogeomorphologic analyses of the watersheds comprised evaluations of the potential sediment load yield through selected morfometric parameters. The hidrosedimentologic analyses emphasized evaluations of the specific sediment load yield (ton/km²/day) and hidrogeomorphologic analyses to verify sediment load carried into to the aquatic habitat of the Itaipu reservoir.The preliminary results indicated that Pss in Iguatemi river watershed was on average 4 times above Pss of Piquiri river watershed, when satellite Quickbird collected multispectral high-spatial-resolution remote sensing imagery on the rivers mouths. According to the hidrogeomorphologic and hidrosedimentologic analyses the Iguatemi river watershed has currently more potencial to develop erosion processes than Piquiri river watershed. Therefore, monitoring studies should be develop for these river systems in order to identifie the mean reasons and variables for that tendence. This study provide support to new researchs and to the conservation of the environment system the resevoir Itaipu.

ASSUNTO(S)

hidrogeomorphologic analyses hidrosedimentologics analyses análises hidrogeomorfológicas remote sensing bacias hidrográficas whatersheds análises hidrossedimentológicas produção específica de sedimentos em suspensão sensoriamento remoto specific sediment load yield

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