Integrando a modelagem da alocação de água ao sistema de indicadores FPEIR: aplicação ao semiárido do Brasil.

Abstract

This study proposes a combined approach of the DPSIR (Driving forces-Pressures-State-Impact-Response) model with water allocation modelling to evaluate water demand management strategies in the Apodi-Mossoró River Basin (Rio Grande do Norte, Brazil). Population growth coupled with economic development, inadequate management and climate change are the driving forces for water scarcity and the conflicts of the water system under analysis. The State Integrated Water Resources Management System is responsible for managing the basin in focus. The instruments of the National Water Resources Policy (defined by Law 9.433/97) are partially implemented in the basin. The Water and Sewage Company of Rio Grande do Norte projects the expansion of the water system. In this research, the Apodi-Mossoró system was analyzed against four allocation strategies and variations in the conditions required for its reservoirs. The analysis shows failures in meeting the demands of the system, which can be mitigated in the strategies that incorporate the management of water demand and the contribution of water transfers from the São Francisco River Basin. The results suggest adaptive water saving measures, including water reuse, as options for better water planning and management in the basin