| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Tabuleiros Costeiros. Para informações adicionais entre em contato com cpatc.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
|
Data corrente: |
06/08/2015 |
|
Data da última atualização: |
05/04/2016 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
CHICO, D.; SANTIAGO, A. D.; GARRIDO, A. |
|
Afiliação: |
ANTONIO DIAS SANTIAGO, CPATC. |
|
Título: |
Increasing efficiency in ethanol production: Water footprint and economic productivity of sugarcane ethanol under nine different water regimes in north-eastern Brazil. |
|
Ano de publicação: |
2015 |
|
Fonte/Imprenta: |
Spanish Journal of Agricultural Research, v. 13, n. 2, 1203, june, 2015. |
|
ISBN: |
2171-9292 |
|
DOI: |
http://dx.doi.org/10.5424/sjar/2015132-6057 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Ethanol production in Brazil has grown by 219% between 2001 and 2012, increasing the use of land and water resources. In the semi-arid north-eastern Brazil, irrigation is the main way for improving sugarcane production. This study aimed at quantifying water consumed in ethanol production from sugarcane in this region using the water footprint (WF) indicator and complementing it with an evaluation of the water apparent productivity (WAP). This way we were able to provide a measure of the crop´s physical and economic water productivity using, respectively, the WF and WAP concepts. We studied sugarcane cultivation under nine different water regimes, including rainfed and full irrigation. Data from a mill of the state of Alagoas for three production seasons were used. Irrigation influenced sugarcane yield increasing total profit per hectare and economic water productivity. Full irrigation showed the lowest WF, 1229 litres of water per litre of ethanol (L/L), whereas rainfed production showed the highest WF, 1646 L/L. However, the lower WF in full irrigation as compared to the rest of the water regimes implied the use of higher volumes of blue water per cultivated hectare. Lower water regimes yielded the lowest economic productivity, 0.72 US$/m3 for rainfed production as compared to 1.11 US$/m3 for full irrigation. Since economic revenues are increased with higher water regimes, there are incentives for the development of these higher water regimes. This will lead to higher general crop water and economic productivity at field level, as green water is replaced by blue water consumption. MenosEthanol production in Brazil has grown by 219% between 2001 and 2012, increasing the use of land and water resources. In the semi-arid north-eastern Brazil, irrigation is the main way for improving sugarcane production. This study aimed at quantifying water consumed in ethanol production from sugarcane in this region using the water footprint (WF) indicator and complementing it with an evaluation of the water apparent productivity (WAP). This way we were able to provide a measure of the crop´s physical and economic water productivity using, respectively, the WF and WAP concepts. We studied sugarcane cultivation under nine different water regimes, including rainfed and full irrigation. Data from a mill of the state of Alagoas for three production seasons were used. Irrigation influenced sugarcane yield increasing total profit per hectare and economic water productivity. Full irrigation showed the lowest WF, 1229 litres of water per litre of ethanol (L/L), whereas rainfed production showed the highest WF, 1646 L/L. However, the lower WF in full irrigation as compared to the rest of the water regimes implied the use of higher volumes of blue water per cultivated hectare. Lower water regimes yielded the lowest economic productivity, 0.72 US$/m3 for rainfed production as compared to 1.11 US$/m3 for full irrigation. Since economic revenues are increased with higher water regimes, there are incentives for the development of these higher water regimes. This will lead to higher gener... Mostrar Tudo |
|
Palavras-Chave: |
Biofuel oils; Blue water; Green water; Water productivity. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02361naa a2200217 a 4500
001 2021461
005 2016-04-05
008 2015 bl uuuu u00u1 u #d
022 $a2171-9292
024 7 $ahttp://dx.doi.org/10.5424/sjar/2015132-6057$2DOI
100 1 $aCHICO, D.
245 $aIncreasing efficiency in ethanol production$bWater footprint and economic productivity of sugarcane ethanol under nine different water regimes in north-eastern Brazil.$h[electronic resource]
260 $c2015
520 $aEthanol production in Brazil has grown by 219% between 2001 and 2012, increasing the use of land and water resources. In the semi-arid north-eastern Brazil, irrigation is the main way for improving sugarcane production. This study aimed at quantifying water consumed in ethanol production from sugarcane in this region using the water footprint (WF) indicator and complementing it with an evaluation of the water apparent productivity (WAP). This way we were able to provide a measure of the crop´s physical and economic water productivity using, respectively, the WF and WAP concepts. We studied sugarcane cultivation under nine different water regimes, including rainfed and full irrigation. Data from a mill of the state of Alagoas for three production seasons were used. Irrigation influenced sugarcane yield increasing total profit per hectare and economic water productivity. Full irrigation showed the lowest WF, 1229 litres of water per litre of ethanol (L/L), whereas rainfed production showed the highest WF, 1646 L/L. However, the lower WF in full irrigation as compared to the rest of the water regimes implied the use of higher volumes of blue water per cultivated hectare. Lower water regimes yielded the lowest economic productivity, 0.72 US$/m3 for rainfed production as compared to 1.11 US$/m3 for full irrigation. Since economic revenues are increased with higher water regimes, there are incentives for the development of these higher water regimes. This will lead to higher general crop water and economic productivity at field level, as green water is replaced by blue water consumption.
653 $aBiofuel oils
653 $aBlue water
653 $aGreen water
653 $aWater productivity
700 1 $aSANTIAGO, A. D.
700 1 $aGARRIDO, A.
773 $tSpanish Journal of Agricultural Research$gv. 13, n. 2, 1203, june, 2015.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 86 | |
| 15. |  | RAMOS, N. P.; LUCHIARI JUNIOR, A.; BATISTA, E. R.; SANTIAGO, A. D. A cana-de-açúcar e a competição com alimentos, nos estados de Alagoas e Pernambuco: uma análise preliminar. In: STAB: Açúcar, álcool e subprodutos, v.27, n.2, p.32, 2008. Reumos do 9. Congresso Nacional da STAB, 2008, Maceió.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
|    |
| Registros recuperados : 86 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
