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In order to support an integrated management policy and the rational use of water resources for sustainable development, it is essential to seek effective instruments to measure the performance of hydrological and environmental systems. Indicators and indexes are used to express a specific situation numerically, and show the sustainability status of that region to the decision-maker. The development of a hydro-environmental sustainability index complies with a multidisciplinary analysis dealing with several interrelated aspects of hydrologic and environmental parameters, based on some important criteria such as: water availability, quality and use of water, population access to water and environment impact. In order to develop such an index in the State of Ceará a representative area of the semiarid highland environment was chosen: Baturité APA (Environmental Protection Area). A model structure based on the Pressure-State-Response approach was considered, resulting in the proposal of a Hydro-Environmental Sustainability Index for the highlands in the Semiarid Brazilian Region.

rbrh

Proposta Metodológica para o Desenvolvimento de um Índice de Sustentabilidade Hidro- Ambiental de Áreas Serranas no Semiárido Brasileiro - Estudo de Caso: Maciço de Baturité, Ceará