São Paulo City Green Belt Biosphere Reserve
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2022
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INTERNATIONAL CONFERENCE ON WATER, MEGACITIES AND GLOBAL CHANGE, 2nd
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Resumo
The green belt surrounding São Paulo and Santos metropolises, designated by UNESCO as the São
Paulo City Green Belt Biosphere Reserve - GBBR (1994), encompasses a population of 25,4 million people
in a region responsible for nearly 20% of Brazilian GDP. With approximately 2,33 million hectares, the
biosphere reserve and its inner urban area (220 thousand hectares) are host to expressive terrestrial and
marine biodiversity, typical to the Atlantic Forest and Cerrado biomes. This paper presents the biosphere
reserve as a water security territory: it provides around 90% and 100% of the water flows supplying São
Paulo and Santos metropolises, respectively. Representing only 7,36% of São Paulo State territory, the
GBBR harbors over 70% of the state´s volume for public supply. Spatial analysis shows that most of this
volume comes from a few protected areas that act as hydric hotspots. During 2013-2015 Southeastern Brazil
and especially São Paulo faced a severe shortage in rainfall that posed threats to the metropolitan water
supply, leading to important reflections about the region´s hydric vulnerability. Combining classical built
infrastructure with ecological infrastructure (conservation, restoration and sustainable use of its ecosystems)
is paramount to ensure the populationʼs water security in the medium and long terms. In this sense, the
geographical and conceptual frameworks constituted by the GBBR can provide integrated land management
solutions for improving water supply in quantity and quality for such a complex and critical territory.
Como referenciar
VICTOR, RODRIGO A.B.M.; RODRIGUES, ELAINE A.; ROCHA, GUSTAVO C. da; LUCA, EDGAR F. de; METZGER, JEAN P.; CARVALHO, AMANDA R. de; BICUDO, DENISE. São Paulo City Green Belt Biosphere Reserve: water security and human well-being. In: INTERNATIONAL CONFERENCE ON WATER, MEGACITIES AND GLOBAL CHANGE, 2nd, January 11-14, 2022, Online. Proceedings... Paris, France: United Nations Educational, Scientific and Cultural Organization - UNESCO, 2022. p. 1160-1170. Disponível em: http://repositorio.ipen.br/handle/123456789/33899. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.