Blue and green infrastructure proposal for an urban watershed in São Paulo to peak flow reduction
DOI:
https://doi.org/10.5902/2236117038535Schlagworte:
Green and blue infrastructure, Urban drainage, LID, Watershed, Hydrological controlAbstract
The critical issue of floods in Brazilian cities is a consequence of an accelerated and disordered occupation and urbanization process, which results in excessive soil waterproofing, removal of riparian vegetation, silting of rivers and streams, water pollution, among others. In the last decades, the use of conventional drainage techniques has resulted in many problems, due to the fast flow of water to downstream and the pollutant loads that flow to the watercourses. Through Green Infrastructure it is possible to promote urban rainwater storage and infiltration, reducing the probability of flooding, and allowing for the retention of pollutants and consequent improvement of water quality in urban water systems. In this study, the application of Blue-Green Infrastructure (BGI) techniques for the reduction of peak flow and improve the water quality are proposed for the Jacarezinho watershed, located in the Municipality of São Paulo. Hydrological simulations of the proposed solutions indicated a reduction of about 36% of the peak flow, which highlights the relevance of BGI. Unlike the Brazilian conventional drainage that practice the construction of monofunctional flood storage reservoirs (called in Brazil as “piscinões”), the BGI also promotes a harmonious and balanced interaction between the population and the urban landscape.Downloads
Literaturhinweise
ATKINSON, W. Planned sustainability: the greening of water infrastructure. 2015. Available at: <https://www.waterworld.com/ articles/print/volume-31/issue-4/features/planned-sustainability-the-greening-of-water-infrastructure.html>. Accessed on: Oct, 2018.
BENEDICT, M.A .; MCMAHON, E. T. Green Infrastructure - Linking Landscapes and Communities. Island Press, Washington, 2006.
BOCHI, T. C. Urban river corridors: environmental perception and urban design. 2013. 218f. Dissertation (Master in Urban and Regional Planning). Faculty of Architecture and Urbanism, Postgraduate Course in Urban and Regional Planning, Federal University of Rio Grande do Sul, Porto Alegre, 2013.
BRAZIL. Constitution of the Federative Republic of Brazil. Brasília, DF: Federal Senate: Graphic Center, 1988.
BRAZIL. Law No. 10,257 of July 10, 2001. City Statutes and Related Legislation. 2nd ed., Current. Brasília: Federal Senate, Subsecretaria de Edições Técnicas, 80 p., 2002.
CPRM - Geological Survey of Brazil - Aquifers. Available in: <http://www.cprm.gov.br/publique/cgi/cgilua.exe/sys/ start.htm?infoid=1377&sid=129>. Acessed 14/12/2017.
CORMIER, N. S., & PELLEGRINO, P. R. M. Green Infrastructure: A Landscape Strategy for Urban Water, Landscape Environment: Essays n.25 / São Paulo, p. 125-142, 2008.
DE OLIVEIRA, E. M., SOARES, M. C., BONZI, R. S. Application of the environmental design for the owl stream watershed: Potentials and limitations in the implementation of a linear park. LABVERDE Magazine, n. 4, p. 31-62, 2012.
FINDLAY, S. J., TAYLOR, M. P. Why rehabilitate urban river systems ?. Area, v. 38, n. 3, p. 312-325, 2006.
FORMAN, R. T. Land Mosaics: The Ecology of Landscapes and Regions. Island Press, 1995.
JAGUARE PROJECT. Development of a methodology and pilot project to revitalize the urban watershed, replicable for the other watersheds in the metropolitan region (Jaguaré Watershed) 2014 AT-653, FCTH, 2017.
PELLEGRINO, P.R. M., MOURA, N.C. B. de. Strategies for a green infrastructure. Barueri: Manole, 2017.
POLETO, C. SUDS (Sustainable Urban Drainage Systems): A Historical Context. Revista Thema, v. 8, n. 1, 2011.
SAO PAULO. Law 13,276, dated January 4, 2002. It makes the execution of a reservoir mandatory for waters collected by roofs and floors in batches, whether or not built, with a waterproofed area greater than 500 m². Available at <http://www.al.sp.gov.br/repositorio/legislacao/lei/2007/lei-12526-02.01.2007.html>. Accessed on: Dec, 2017.
MELO, T. dos A., COUTINHO, A. P., CABRAL, J. J. S. P., ANTONINO, A. C. D., CIRILO, J. A. Rain garden: bioremediation system for urban storm water management. Built Environment, Porto Alegre, v. 14, n. 4, p. 147-165, Oct./Dec. 2014.
FCTH, Foundation Technological Center of Hydraulics. Technical project: rain gardens. Available at: <http://solucoesparacidades.com.br/>. Accessed on: Dec, 2017.
SÃO PAULO, Law No. 15,733, May 3, 2013. It introduces changes to Law No. 15.442, of September 9, 2011, as well as rendering non-effect fines, as specified. Available at: <http://www3.prefeitura.sp.gov.br/cadlem/secretarias/negocios _juridicos/cadlem/integra.asp?alt=04052013L%20157330000>. Accessed on: Dec, 2017.
SILVA, J. C. A.. Urbanized watersheds: restoration, revitalization, and recovery. A study of the Jaguaré watershed. 2017. Thesis (Doctorate in Hydraulic Engineering) - Polytechnic School, University of São Paulo, São Paulo, 2017. doi:10.11606/T.3.2017.tde-01092017-150153.
TOMAZ, P. Rainwater management course, Rational method. Chapter 2, São Paulo – SP, 2013.
TOMAZ, P. Removal of sediments in BMPs. Guarulhos: Portal Plinio Tomaz, 2008. Available at: <http://pliniotomaz.com.br/livros-digitais/>. Accessed on: Dec, 2017. 278p.
UACDC - LID, Low Impact Development a manual design for urban areas. UACDC, Fayetteville, Arkansas, 2010. Available at: <http://uacdc.uark.edu>. Accessed on: Dec, 2017.
