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säo francisco

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11 - The São Francisco River Basin
from Part III - Engineered Rivers
- By Antônio R. Magalhães, Eduardo Sávio P. R. Martins
Edited by Jurgen Schmandt, Aysegül Kibaroglu
Edited in association with Regina Buono, University of Texas, Austin, Sephra Thomas, University of Texas, Austin
Book:

Sustainability of Engineered Rivers In Arid Lands

Published online:

16 September 2021

Print publication:

16 September 2021, pp 132-151
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Summary

The São Francisco river crosses some of the driest parts of the Brazilian Semi-arid Region and brings life to ecosystems and to millions of people. Droughts are a recurrent problem in the basin. Since the second part of the twentieth century, several dams, irrigation projects, and water and sanitation systems have been built, and these developments have impacted river conditions, such as stream flows, sedimentation, silting, and water quality. The development of the river, and its engineering solutions, have prioritized the hydroelectric and agricultural sectors. This has started to change with the new water law of 1997 and the creation of the National Water Agency (ANA) in 2000. This chapter reviews current water management and use in the basin as well as the scenarios, which indicate that, in the future, precipitation and stream flows may be reduced significantly due to climate change while water demand will increase due to population growth and development.

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11 - The São Francisco River Basin

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