Avaliação das outorgas de direito de uso dos recursos hídricos na bacia hidrográfica do Rio Apodi/Mossoró

Abstract

The present study consists of the analysis of the grants of right of use of water resources in the Hydrographic Basin of the Apodi/Mossoró river, located in the state of Rio Grande do Norte. The reasons for choosing to assess the Basin grants are firstly due to the legal certainty that this instrument provides in a water allocation system, the aid to the manager in decision making, the fact of having the second most important river in extension at the state level, of the development of relevant economic activities along the planning unit and the challenge for the water resources management body, the Rio Grande do Norte Water Management Institute, to fully manage this basin, mainly in relation to volumes and water potential. The information and data used in this research were provided by IGARN, which evaluated the grants granted in the period from 1996 to June 2018. The methodology was based on the systematization, comparison and interpretation of the data on the grants, generating graphs, tables and zoning maps. The results showed the typical behavior of the Hydrographic Basin in relation to socioeconomic activities and sources of water abstraction. Finally, it was highlighted the importance of granting the right to use water resources as an instrument to control the quantity and quality of water sources, as well as the interaction between users and economic, social and environmental demands.