Water scarcity in Brazil: part 2—uncertainty assessment in regionalized characterization factors

Alves, Kilvia de Freitas; Andrade, Edilene Pereira; Savioli, José Paulo; Pastor, Amandine; Figueiredo, M. de L. C.; Ugaya, Cássia Maria Lie

doi:10.1007/s11367-020-01739-3

Cited by 14 publications

(1 citation statement)

References 18 publications

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“…The uncertainties of the study are related mainly to the uncertainties of the CFs. Alves et al (2020) have shown that the greater the temporal variation, the greater the uncertainty of CFs, such as in the Brazilian semiarid region. Another point of uncertainty is regarding kc; applying specific kcs to the different stages and locations can provoke different irrigation demands, contributing to reducing uncertainties in footprint calculation.…”

Section: Uncertainties In the Studymentioning

confidence: 99%

Water scarcity footprint of cocoa irrigation in Bahia

Olegário¹,

Andrade²,

Sampaio³

et al. 2022

Rev. ambiente água

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This study simulated the water scarcity footprint (WSF) of cocoa irrigation in municipalities considered suitable for cocoa growing in the state of Bahia, according to agro climatic zoning. Irrigation demand was calculated using the model proposed by FAO (Food and Agriculture Organization of the United Nations). Subsequently, impact on water scarcity was calculated using the product of crop irrigation demand and water scarcity characterization factors of the regionalized AWARE method for Brazil. The WSF in Bahia ranged between 0.28 and 646.5 m³ of water per kilo of cocoa produced. From the defined scale, of the 417 municipalities in Bahia suitable for growing cocoa, 59% have a 'low' footprint, 18% 'medium', 10% 'high', and 12% have a 'very high' footprint. Based on these results, it is suggested that areas with lower WSF are a priority in the expansion of cocoa to avoid a possible compromise of other essential demands of the municipalities. In addition, irrigation should avoid waste, especially in regions with high levels of water scarcity. The results show that the inclusion of the WSF in agroclimatic zoning can contribute to the process of identifying potential and critical regions for new crops and the expansion of others. Keywords: agriculture, agroclimatic zoning, AWARE, environmental indicator.

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Section: Uncertainties In the Studymentioning

confidence: 99%