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Rainfall interception capacity of tree species used in urban afforestation

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Abstract

Afforestation is inserted in the urban environment and interferes directly in the surface runoff. In order to quantify the rainfall interception by tree species, an experiment was carried out in the city of Uruaçu, Goiás, Brazil, with the four most common tree species in the urban afforestation of the region. The species chosen were the Mangifera indica (mango tree), the Caesalpinia peltophoroides (sibipiruna tree), the Pachira aquatica (munguba tree) and the Licania tomentosa (oiti). In order to register precipitation, ten pluviographs were used. They are capable of measuring precipitation over time in terms of duration, volume, and intensity. For events with a mean cumulative precipitation of 16.7 mm, the mean values of interception found in each species were: Mangifera indica - 8.0 mm; Pachira aquatica - 7.4 mm; Licania tomentosa - 7.2 mm; and Caesalpinia peltophoroides - 4.8 mm. The research confirms the importance of studies related to the identification of the species’ individual characteristics that interfere in the rainfall interception capacity and that can consequently contribute to urban drainage actions. In addition, it proves the existence of variations of rainfall interception in relation to rainfall events and during their occurrences and emphasizes the need for a careful definition of the species that will compose the urban afforestation.

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Acknowledgements

The authors would like to thank: Foundation for Research Support of the State of Goiás - (FAPEG) for granting a scholarship to the first author; Funding Authority for Studies and Projects – (FINEP) for providing financial aid for the purchase of equipment; and the National Council for Scientific and Technological Development - (CNPq) for granting a Scholarship of Productivity and Technological Development of Innovative Extension - Level 2 to the second author.

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Correspondence to Patrícia Layne Alves.

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Table S1

Complete data of the registers of precipitation/rainfall in the municipality searched and under the canopy (XLSX 30 kb)

Table S2

Detailed data of precipitation and interception occurred in the events of greater and lesser intensity, duration and volume recorded during the field research period. (XLSX 20 kb)

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Alves, P.L., Formiga, K.T.M. & Traldi, M.A.B. Rainfall interception capacity of tree species used in urban afforestation. Urban Ecosyst 21, 697–706 (2018). https://doi.org/10.1007/s11252-018-0753-y

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  • DOI: https://doi.org/10.1007/s11252-018-0753-y

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