Reforest or perish: ecosystem services provided by riparian vegetation to improve water quality in an urban reservoir (São Paulo, Brazil)

Auteurs-es

DOI :

https://doi.org/10.18472/SustDeb.v11n1.2020.28152

Mots-clés :

Riparian conservation. Water quality. Water supply. Natural resources management. Environmental valuation. Reforestation.

Résumé

We estimated the economic value of ecosystem services provided by the legally protected vegetation in riparian zones (RPA- riparian protected areas) of watercourses of the Guarapiranga Reservoir watershed (São Paulo, Brazil), considering two scenarios: (i) the value of ecosystem services provided if the RPA recovery complies with the applicable environmental legislation; and (ii) the year 2030, maintaining the urbanization rate and the loss of vegetation cover in the watershed observed between 1986 and 2010. Accomplishing the first scenario demands reforesting 5,917.5 ha of the RPA, which may reduce the annual expenses with chemicals for water treatment and save USD 181.774 per 1000 m3 of treated water. For 2030, we estimated a loss of 6,220 ha of vegetation cover in the RPA (1986 as the initial reference). The loss of ecosystem services provided by RPA would result in an accumulated increase of about USD 318 million in water treatment costs between 2011 and 2030.

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Bibliographies de l'auteur-e

Mariana Amélia Arantes Adas, Universidade Federal de São Paulo (Unifesp), Diadema, SP, Brasil

Bachelor of Biological Sciences (Mackenzie Presbiterian University); Master in Integrated Environmental Analysis (Federal University of São Paulo - Unifesp).

Elisa Hardt, Universidade Federal de São Paulo (Unifesp), Diadema, SP, Brasil

Graduated in Biological Sciences (Federal University of São Carlos - UFSCar); Master in Forest Resources (University of São Paulo - USP); PhD in Engineering - Water, Energy and Environmental Resources (State University of Campinas - UNICAMP); Professor at the Federal University of São Paulo (Unifesp) and a collaborating researcher at the Department of Ecology of the Complutense University of Madrid - UCM

Simone Georges el Khouri Miraglia, Universidade Federal de São Paulo (Unifesp), Diadema, SP, Brasil.

Graduated in Civil Engineering (University of São Paulo - USP); Master in Transportation Engineering (University of São Paulo - USP); PhD in Sciences (University of São Paulo School of Medicine - USP); Professor at the Federal University of São Paulo (Unifesp) and leader of the Laboratory of Economics, Health and Environmental Pollution (LESPA).

Décio Semensatto, Universidade Federal de São Paulo (Unifesp), Diadema, SP, Brasil.

Graduated in Ecology (Paulista State University - Unesp); PhD in Geosciences and Environment (Paulista State University - Unesp); Professor at the Federal University of São Paulo (Unifesp).

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Publié-e

2020-04-30

Comment citer

Adas, M. A. A., Hardt, E., Miraglia, S. G. el K., & Semensatto, D. (2020). Reforest or perish: ecosystem services provided by riparian vegetation to improve water quality in an urban reservoir (São Paulo, Brazil). Sustainability in Debate, 11(1), 226–243. https://doi.org/10.18472/SustDeb.v11n1.2020.28152

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