Conflicts over multiple uses of water in the reservoir of the Tucuruí Dam arise with the
announcement of the construction of the mega dam in the region, and the subsequent social
and environmental conflicts. Allied to the raising of the social perception level concerning
environmental problems, the search for efficient process of water resources management also
increases. This study aims to analyze and typify the conflicts over multiple uses of water in
the reservoir of the Tucuruí Dam, using the software for qualitative modeling NVivo 8 as a
decision support tool, and thus to determine the best alternatives to be adopted for the
conciliation of multiple uses in the reservoir. The typifications performed were based on the
analysis of conflicts, its components, elements and aspects, type, nature and origin. In such
case, three main types of conflict were identified in the Tucuruí Dam reservoir: conflicts
among different water users groups, conflicts over hydraulic works, and conflicts arising from
environmental pollution. For this study, a qualitative approach was adopted, using the
cognitive mapping method. This type of mapping enables the construction of a cognitive
model for the management of conflicts in Tucuruí reservoir. Thus, the software NVivo 8
enabled, besides the analysis of data obtained in the interviews and literature review, the
construction of the graphic model to support management of conflicts over multiple uses of
water. It was verified that one of the solutions for conflicts is through its analysis in order to
investigate the appropriate mechanisms to resolve them, and subsequent proposal of structural
and/or non-structural measures for water resources management. The main actions for the
solution of conflicts are defined in methods of long-term institutional resolution. The model
may act as a support for planning and decision making, concerning environmental problems,
the participation of water users in the water system, public policies, as well as integrated
water resources management. Then, it follows that the exploitation of water resources should
provide the multiple uses of water in response to the environmental sustainability principles,
inserted in a process of management of conflicts over multiple uses of water and integrated
water resources management.
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