Restoring, Revitalizing and Recovering Brazilian Rivers: Application of the Concept to Small Basins in the City of São Paulo, Brazil

Authors: Juliana C. Alencar, Monica Ferreira do Amaral Porto

Abstract:

Watercourses in Brazilian urban areas are constantly being degraded due to the unplanned use of the urban space; however, due to the different contexts of land use and occupation in the river watersheds, different intervention strategies are required to requalify them. When it comes to requalifying watercourses, we can list three main techniques to fulfill this purpose: restoration, revitalization and recovery; each one being indicated for specific contexts of land use and occupation in the basin. In this study, it was demonstrated that the application of these three techniques to three small basins in São Paulo city, listing the aspects involved in each of the contexts and techniques of requalification. For a protected watercourse within a forest park, renaturalization was proposed, where the watercourse is preserved in a state closer to the natural one. For a watercourse in an urban context that still preserves open spaces for its maintenance as a landscape element, an intervention was proposed following the principles of revitalization, integrating the watercourse with the landscape and the population. In the case of a watercourse in a harder context, only recovery was proposed, since the watercourse is found under the road system, which makes it difficult to integrate it into the landscape.

Keywords: Sustainable drainage, river restoration, river revitalization, river recovery.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.2643649

References:

[1] Barbedo, A. S., Bianchi, C. G., Keller, L. R., Ortega, M. G., & Ortega, S. E. H. Technical manual of urban afforestation. Municipal Secretary of Green and the Environment, 45, 2nd Edition, 2011.
[2] Cardoso, A. S.; Baptista, M. B. - Methodology for Evaluation of Intervention Alternatives in Water Courses in Urban Areas - RBRH - Brazilian Journal of Water Resources Volume 16 n.1 129-139, Jan / Mar, 2011.
[3] Cengiz, B. - Urban River Landscapes. Advances in Landscape Architecture ", book edited by Murat Özyavuz, ISBN, p. 978-953, 2013.
[4] Chin, A. & Gregory, K. J. - Managing urban river channel adjustments - Geomorphology 69 (2005) 28-45 - Received 14 November 2003; received in revised form 8 September 2004; accepted 8 October 2004 Available online 13 January, 2005.
[5] Travassos, L.; Schult, S. I. M. - Socioenvironmental recovery of urban valley funds in the city of São Paulo, between transformations and permanence. Metrópole notebooks. ISSN (printed) 1517-2422; (electronic) 2236-9996, v. 15, n. 29, p. 289-312, 2013.