| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Meio Ambiente; Embrapa Solos. |
|
Data corrente: |
18/05/2004 |
|
Data da última atualização: |
20/09/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
PARAIBA, L. C.; CERDEIRA, A. L.; SILVA, E. F. da; MARTINS, J. S.; COUTINHO, H. L. da C. |
|
Afiliação: |
LOURIVAL COSTA PARAIBA, CNPMA; ANTONIO LUIZ CERDEIRA, CNPMA; ENIO FRAGA DA SILVA, CNPS; Embrapa Solos; HEITOR LUIZ DA COSTA COUTINHO, CNPS. |
|
Título: |
Evaluation of soil temperature effect on herbicide leaching potential into groundwater in the brazilian cerrado. |
|
Ano de publicação: |
2003 |
|
Fonte/Imprenta: |
Chemosphere, Oxford, v. 53, p. 1087-1095, 2003. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The effect of annual variations in the daily average soil temperatures, at different depths, on the calculation of pesticide leaching potential indices is presented. This index can be applied to assess the risk of groundwater contamination by a pesticide. It considers the effects of water table depth, daily recharge net rate, pesticide sorption coefficient, and degradation rate of the pesticide in the soil. The leaching potential index is frequently used as a screening indicator in pesticide groundwater contamination studies, and the temperature effect involved in its calculation is usually not considered. It is well known that soil temperature affects pesticide degradation rates, air-water partition coefficient, and water-soil partition coefficient. These three parameters are components of the attenuation and retardation factors, as well as the leaching potential index, and contribute to determine pesticide behavior in the environment. The Arrhenius, van't Hoff, and Clausius-Clapeyron equations were used in this work to estimate the soil temperature effect on pesticide degradation rate, air-water partition coefficient, and water--soil partition coefficient, respectively. The relationship between leaching potential index and soil temperature at different depths is presented and aids in the understanding of how potential pesticide groundwater contamination varies on different climatic conditions. Numerical results will be presented for 31 herbicides known to be used in corn and soybean crops grown on the municipality of São Gabriel do Oeste, Mato Grosso do Sul State, Brazil. MenosThe effect of annual variations in the daily average soil temperatures, at different depths, on the calculation of pesticide leaching potential indices is presented. This index can be applied to assess the risk of groundwater contamination by a pesticide. It considers the effects of water table depth, daily recharge net rate, pesticide sorption coefficient, and degradation rate of the pesticide in the soil. The leaching potential index is frequently used as a screening indicator in pesticide groundwater contamination studies, and the temperature effect involved in its calculation is usually not considered. It is well known that soil temperature affects pesticide degradation rates, air-water partition coefficient, and water-soil partition coefficient. These three parameters are components of the attenuation and retardation factors, as well as the leaching potential index, and contribute to determine pesticide behavior in the environment. The Arrhenius, van't Hoff, and Clausius-Clapeyron equations were used in this work to estimate the soil temperature effect on pesticide degradation rate, air-water partition coefficient, and water--soil partition coefficient, respectively. The relationship between leaching potential index and soil temperature at different depths is presented and aids in the understanding of how potential pesticide groundwater contamination varies on different climatic conditions. Numerical results will be presented for 31 herbicides known to be used in corn a... Mostrar Tudo |
|
Palavras-Chave: |
Água subterrânea; Índice. |
|
Thesagro: |
Agrotóxico; Cerrado; Contaminação; Herbicida; Impacto ambiental; Lixiviação; Pesticida; Solo; Temperatura; Temperatura do Solo. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163813/1/Paraiba-Evaluation-6433.pdf
|
|
Marc: |
LEADER 02483naa a2200313 a 4500
001 1015085
005 2017-09-20
008 2003 bl uuuu u00u1 u #d
100 1 $aPARAIBA, L. C.
245 $aEvaluation of soil temperature effect on herbicide leaching potential into groundwater in the brazilian cerrado.$h[electronic resource]
260 $c2003
520 $aThe effect of annual variations in the daily average soil temperatures, at different depths, on the calculation of pesticide leaching potential indices is presented. This index can be applied to assess the risk of groundwater contamination by a pesticide. It considers the effects of water table depth, daily recharge net rate, pesticide sorption coefficient, and degradation rate of the pesticide in the soil. The leaching potential index is frequently used as a screening indicator in pesticide groundwater contamination studies, and the temperature effect involved in its calculation is usually not considered. It is well known that soil temperature affects pesticide degradation rates, air-water partition coefficient, and water-soil partition coefficient. These three parameters are components of the attenuation and retardation factors, as well as the leaching potential index, and contribute to determine pesticide behavior in the environment. The Arrhenius, van't Hoff, and Clausius-Clapeyron equations were used in this work to estimate the soil temperature effect on pesticide degradation rate, air-water partition coefficient, and water--soil partition coefficient, respectively. The relationship between leaching potential index and soil temperature at different depths is presented and aids in the understanding of how potential pesticide groundwater contamination varies on different climatic conditions. Numerical results will be presented for 31 herbicides known to be used in corn and soybean crops grown on the municipality of São Gabriel do Oeste, Mato Grosso do Sul State, Brazil.
650 $aAgrotóxico
650 $aCerrado
650 $aContaminação
650 $aHerbicida
650 $aImpacto ambiental
650 $aLixiviação
650 $aPesticida
650 $aSolo
650 $aTemperatura
650 $aTemperatura do Solo
653 $aÁgua subterrânea
653 $aÍndice
700 1 $aCERDEIRA, A. L.
700 1 $aSILVA, E. F. da
700 1 $aMARTINS, J. S.
700 1 $aCOUTINHO, H. L. da C.
773 $tChemosphere, Oxford$gv. 53, p. 1087-1095, 2003.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Meio Ambiente (CNPMA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Clima Temperado. |
|
Data corrente: |
16/03/2009 |
|
Data da última atualização: |
16/03/2009 |
|
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
|
Autoria: |
VERNETTI JUNIOR, F. de J.; CARRICONDE, B. de F. |
|
Título: |
Avaliação de linhagens de soja RR na Embrapa Clima Temperado. 2007/2008. |
|
Ano de publicação: |
2008 |
|
Fonte/Imprenta: |
In: VERNETTI JUNIOR, F. de J. Soja: resultados de pesquisa na Embrapa Clima Temperado - 2008. Pelotas: Embrapa Clima Temperado, 2008. |
|
Série: |
(Embrapa Clima Temperado. Documentos, 236). |
|
Idioma: |
Português |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 00523naa a2200133 a 4500
001 1746382
005 2009-03-16
008 2008 bl --- 0-- u #d
100 1 $aVERNETTI JUNIOR, F. de J.
245 $aAvaliação de linhagens de soja RR na Embrapa Clima Temperado. 2007/2008.
260 $c2008
490 $a(Embrapa Clima Temperado. Documentos, 236).
700 1 $aCARRICONDE, B. de F.
773 $tIn: VERNETTI JUNIOR, F. de J. Soja: resultados de pesquisa na Embrapa Clima Temperado - 2008. Pelotas: Embrapa Clima Temperado, 2008.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Clima Temperado (CPACT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
