Título: | GREY WATER FOOTPRINT (GWF) BY AGROCHEMICALS: A CASE STUDY OF SOYBEAN FARMING IN THE BRAZILIAN CERRADO | ||||||||||||
Autor: |
RENATA FACIN BOFF |
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Colaborador(es): |
CELSO ROMANEL - Orientador MARKUS PAHLOW - Coorientador |
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Catalogação: | 08/NOV/2016 | Língua(s): | ENGLISH - UNITED STATES |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=27910&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=27910&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.27910 | ||||||||||||
Resumo: | |||||||||||||
The growing world population, coupled with changes in lifestyle, result in an
increasing demand for food, feed and energy crops. Brazil is increasingly producing
and supplying these crops for other parts of the world. The Cerrado has become the
centre of Brazil s soybean industry. The natural savannah has been replaced by crop
monocultures which are associated with intensive use of synthetic fertilizers and
pesticides. This study determines to which extent the application of agrochemicals
in the cultivation of soybean contributes to the pollution of local river basins in the
Cerrado. As a measure to quantify this impact, the grey water footprint (GWF) of
soybean cultivation in a typical farm in the municipality of Correntina-BA is
calculated for 5 cropping years. The most significant pollutant for all years was the
pesticide 2,4-D. The GWF of soybean cultivation for the case study in the period
ranged from 7,661 to 13,587 m3 per hectare and 2,441 to 7,651 m3 per tonne of
soybean. The average water pollution level (WPL) associated with the production
of this crop at river basin level was 48.6 percent. The average water pollution level
(WPL) associated with the production of this crop at river basin level was 48.6 percent
with values ranging from 36 percent to 83 percent. The calculated GWFs and WPLs show a
large variation among different cropping seasons. The GWF in 2013/2014 had
discrepant values, being 43.6 percent higher than the value in 2010/2011. This difference
is mainly due to a higher application of the pesticide, from 0.80 kg/ha to 1.42 kg/ha.
The WPL in 2013/2014 reached 83 percent . The results indicate that following the local
trend of further intensification of large scale agriculture, the pollution of local water
bodies with dissolved agrochemicals will increase to the point that it is likely to
soon violate the local water quality standards.
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