Spatial variability of groundwater contamination risk by tebuthiuron in sugarcane area

Authors

  • Diego Augusto de Campos Moraes Universidade Estadual Paulista, Faculdade de Ciências Agronômicas, Rua José Barbosa de Barros, no 1.780, CEP 18610-307 Botucatu, SP.
  • Claudio Aparecido Spadotto Embrapa Gestão Territorial, Avenida Soldado Passarinho, no 303, Fazenda Chapadão, CEP 13070-115 Campinas, SP.
  • Anderson Antônio da Conceição Sartori Universidade do Sagrado Coração, Rua Irmã Arminda, no 10-50, Jardim Brasil, CEP 17011-160 Bauru, SP.
  • Célia Regina Lopes Zimback Universidade Estadual Paulista, Faculdade de Ciências Agronômicas, Rua José Barbosa de Barros, no 1.780, CEP 18610-307 Botucatu, SP.

DOI:

https://doi.org/10.1590/S1678-3921.pab2016.v51.21579

Keywords:

geostatistics, herbicide, water table, risk maps, simulation

Abstract

The objective of this work was to evaluate the groundwater contamination risk by tebuthiuron in a sugarcane area, through spatial modeling, in the municipality of São Manuel, in the state of São Paulo, Brazil. The Araquá model was used to generate specific concentration estimates, considering simulations regarding different water table depths (100 and 200 cm) and irrigation depths (0 and 2,500 mm). As the estimated concentrations of tebuthiuron did not show spatial dependence, the thematic maps of risk of groundwater contamination were obtained through the method of interpolation by the inverse distance. Considering all the simulations, it can be concluded that there would be no groundwater contamination by tebuthiuron at the two depths of the water table, with or without irrigation. The interpolation of the estimated concentrations of tebuthiuron in groundwater provides the spatialization and a quick view of the areas with higher contamination risk.

Author Biographies

Diego Augusto de Campos Moraes, Universidade Estadual Paulista, Faculdade de Ciências Agronômicas, Rua José Barbosa de Barros, no 1.780, CEP 18610-307 Botucatu, SP.

http://lattes.cnpq.br/8705200916786515

Claudio Aparecido Spadotto, Embrapa Gestão Territorial, Avenida Soldado Passarinho, no 303, Fazenda Chapadão, CEP 13070-115 Campinas, SP.

http://lattes.cnpq.br/3404384601903230

Anderson Antônio da Conceição Sartori, Universidade do Sagrado Coração, Rua Irmã Arminda, no 10-50, Jardim Brasil, CEP 17011-160 Bauru, SP.

http://lattes.cnpq.br/8834872890494956

Célia Regina Lopes Zimback, Universidade Estadual Paulista, Faculdade de Ciências Agronômicas, Rua José Barbosa de Barros, no 1.780, CEP 18610-307 Botucatu, SP.

http://lattes.cnpq.br/4637003229684941

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Published

2017-02-03

How to Cite

Moraes, D. A. de C., Spadotto, C. A., Sartori, A. A. da C., & Zimback, C. R. L. (2017). Spatial variability of groundwater contamination risk by tebuthiuron in sugarcane area. Pesquisa Agropecuaria Brasileira, 51(12), 1992–1999. https://doi.org/10.1590/S1678-3921.pab2016.v51.21579

Issue

v.51, n.12, dez. 2016

Section

REMOTE SENSING