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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
18/08/2021 |
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Data da última atualização: |
18/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CAMBRAIA NETO, A. J.; RODRIGUES, L. N.; SILVA, D. D. da; ALTHOFF, D. |
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Afiliação: |
ARNALDO JOSÉ CAMBRAIA NETO; LINEU NEIVA RODRIGUES, CPAC; DEMETRIUS DAVID DA SILVA; DANIEL ALTHOFF. |
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Título: |
Impact of climate change on groundwater recharge in a Brazilian Savannah watershed. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Theoretical and Applied Climatology, v. 143, 2021. |
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Páginas: |
p. 1425-1436 |
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Idioma: |
Inglês |
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Conteúdo: |
There is little information about the availability of water in the Cerrado biome, the main agricultural frontier in Brazil, especially about groundwater, and this has compromised the region?s economic and social development, as well as environmental sustainability. The reduction of rainfall in this region, indicated by numerous climate models, may reduce aquifer recharge and, consequently, groundwater availability and sustainable development of the Cerrado biome. This study aimed to evaluate the impact of global climate change on groundwater recharge in a Brazilian Savannah watershed. Rainfall and water table depth data were recorded between 2007 and 2015. Based on these data, equations were developed relating the average monthly depth of the water table with the accumulated average monthly rainfall. From these equations, monthly average recharges considering the future climate estimates made by climate models (Eta-HadGEM2-ES and Eta-MIROC5) and Representative Concentration Pathway (RCP) scenarios (4.5 and 8.5) were calculated. In a pessimistic scenario (RCP 8.5), the average monthly groundwater recharge is decreasing in the beginning and in the end of the rainy season, indicating that there may be an increase in the dry season and, consequently, a reduction in water availability in the Cerrado biome region. |
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Palavras-Chave: |
Disponibilidade hídrica. |
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Thesagro: |
Cerrado; Chuva; Lençol Freático; Mudança Climática; Seca. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02016naa a2200241 a 4500
001 2133704
005 2021-08-18
008 2021 bl uuuu u00u1 u #d
100 1 $aCAMBRAIA NETO, A. J.
245 $aImpact of climate change on groundwater recharge in a Brazilian Savannah watershed.$h[electronic resource]
260 $c2021
300 $ap. 1425-1436
520 $aThere is little information about the availability of water in the Cerrado biome, the main agricultural frontier in Brazil, especially about groundwater, and this has compromised the region?s economic and social development, as well as environmental sustainability. The reduction of rainfall in this region, indicated by numerous climate models, may reduce aquifer recharge and, consequently, groundwater availability and sustainable development of the Cerrado biome. This study aimed to evaluate the impact of global climate change on groundwater recharge in a Brazilian Savannah watershed. Rainfall and water table depth data were recorded between 2007 and 2015. Based on these data, equations were developed relating the average monthly depth of the water table with the accumulated average monthly rainfall. From these equations, monthly average recharges considering the future climate estimates made by climate models (Eta-HadGEM2-ES and Eta-MIROC5) and Representative Concentration Pathway (RCP) scenarios (4.5 and 8.5) were calculated. In a pessimistic scenario (RCP 8.5), the average monthly groundwater recharge is decreasing in the beginning and in the end of the rainy season, indicating that there may be an increase in the dry season and, consequently, a reduction in water availability in the Cerrado biome region.
650 $aCerrado
650 $aChuva
650 $aLençol Freático
650 $aMudança Climática
650 $aSeca
653 $aDisponibilidade hídrica
700 1 $aRODRIGUES, L. N.
700 1 $aSILVA, D. D. da
700 1 $aALTHOFF, D.
773 $tTheoretical and Applied Climatology$gv. 143, 2021.
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Embrapa Cerrados (CPAC) |
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| 8. |  | ASNER, G. P.; PALACE, M.; KELLER, M.; PEREIRA JÚNIOR, R.; SILVA, J. N. M.; ZWEEDE, J. C. Estimating canopy structure in an Amazon forest from laser range finder and IKONOS satellite observations. Biotropica, v. 34, n. 4, p. 483-492, Dec. 2002.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
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