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Universidade de Sao Paulo (2018)

A transposição do Rio São Francisco como potencial medida de adaptação às mudanças climáticas

Pontes, Nadia Costa

Titre : A transposição do Rio São Francisco como potencial medida de adaptação às mudanças climáticas

Integration Project of the São Francisco River as a potential measure of adaptation to climate change

Auteur : Pontes, Nadia Costa

Université de soutenance : Universidade de Sao Paulo

Grade : Mestre em Ciencia Ambiental 2018

Résumé
The Brazilian Northeast region, the first to be occupied after the arrival of the Portuguese in the 16th century, has 53% of its territory under a semi-arid climate regime. This space is home to 12 million people, it has been hit by crises caused by water shortages, which are understood as barriers to development. Known by its climatic variability, the semiarid portion of the Northeast is one of the world’s most vulnerable region to climate change. By the end of this century, predictions indicate that temperature could rise by 4 C as compared to the pre- industrial time, with a strong impact on water resources and desertification. Given this scenario, it is urgent to discuss measures that offer the local population conditions to adapt. Proposed more than a century ago as a solution to the problems brought about by the water scarcity in the semiarid, the project to divert Brazil’s Sao Francisco river began to be implemented in 2007 under the official name of the São Francisco River Integration Project with the Northern Northeast Hydro Basins (PISF). It is the largest water infrastructure project in the country, designed to transfer 26.4 m3/s through two main axes, Northern and Eastern. The volume transported by the channels is mainly intended for human and animal consumption. This dissertation aims to analyze the Eastern Axis of the PISF of the Northeast of Brazil as a potential adaptation to climate change measure. The research strategy applied in this interdisciplinary work fits the qualitative research, relies on documents, images, unstructured interviews and field visits. The research concludes that the distribution of water by the Eastern Axis of the PISF does not contribute to the adaptation of most vulnerable populations in the semiarid region, but that PISF has the potential to convert to that such measure.

Mots Clés  : água governança mudanças climáticas nordeste obras de desvio de água PISF recursos hídricos semiárido

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Page publiée le 13 avril 2019