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Impacts of climate change on drought: changes to drier conditions at the beginning of the crop growing season in southern Brazil Bragantia
Pereira,Vânia Rosa; Blain,Gabriel Constantino; Avila,Ana Maria Heuminski de; Pires,Regina Célia de Matos; Pinto,Hilton Silveira.
ABSTRACT The intensification of drought incidence is one of the most important threats of the 21st century with significant effects on food security. Accordingly, there is a need to improve the understanding of the regional impacts of climate change on this hazard. This study assessed long-term trends in probability-based drought indices (Standardized Precipitation Index and Standardized Evapotranspiration Index) in the State of São Paulo, Brazil. Owing to the multi-scalar nature of both indices, the analyses were performed at 1 to 12-month time scales. The indices were calculated by means of a relativist approach that allowed us to compare drought conditions from different periods. The years 1961-1990 were used as the referential period. To the authors’...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Intensification of drought; Drought Index; Agricultural drought; Crop yields.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100201
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