The nexus between water, energy, and food in the context of the global risks: An analysis of the interactions between food, water, and energy security

Amorim, Wellyngton Silva de; Valduga, Isabela Blasi; Ribeiro, João Marcelo Pereira; Williamson, Victoria Guazzelli; Krauser, Grace Ellen; Magtoto, Mica; Guerra, José Baltazar Salgueirinho Osório de Andrade

doi:10.1016/j.eiar.2018.05.002

Cited by 165 publications

(64 citation statements)

References 60 publications

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“…Recent discussions on the water–energy–food nexus (e.g., Amorim et al, ; Reddy, Cunha, & Kurian, ) have been including the improvement of agriculture management and practices as a key element to minimize global risks and promote water quality, ecosystem services, and food security. Many regions in Brazil and Argentina have been undergoing significant expansion of the agricultural frontier into natural biomes and rapid conversion of the original vegetation to pastures and croplands.…”

Section: Discussionmentioning

confidence: 99%

Agriculture influences ammonium and soluble reactive phosphorus retention in South American headwater streams

et al. 2019

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Agricultural activities can affect the delivery of nutrients to streams, riparian canopy cover, and the capacity of aquatic systems to process nutrients and sediments. There are few measures of nutrient uptake and metabolism from tropical or subtropical streams in general, and even fewer from tropical regions of South America. We examined ammonium (NH4+) and soluble reactive phosphorus (SRP) retention in streams in Brazil and Argentina. We selected 12 streams with relatively little or extensive agricultural activity and conducted whole‐stream nutrient additions and measurements of gross primary production and ecosystem respiration. We used multiple linear regression to determine potential drivers of nutrient uptake metrics across the streams. Nutrient concentrations and retention differed significantly between land use categories. Both NH4+ and SRP concentrations were higher in the agricultural sites (means of 161 and 495 μg l–1, respectively), whereas metabolic rates were slower and transient storage was smaller. Our analysis indicated that agriculture increased ambient uptake lengths and decreased uptake velocities. The regression models revealed that ambient SRP had a positive effect on NH4+ uptake and vice versa, suggesting strong stoichiometric controls. Drivers for nutrient uptake in streams with low‐intensity agriculture also included canopy cover, temperature, and ecosystem respiration rates. Nutrient assimilation in agricultural sites was influenced by a higher number of variables (gross primary production for SRP, discharge, and transient storage for both nutrients). Our results indicate agricultural activity changes both the magnitude of in‐stream nutrient uptake and the mechanisms that control its variation, with important implications for South American streams under agricultural intensification.

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Section: Discussionmentioning

confidence: 99%

Agriculture influences ammonium and soluble reactive phosphorus retention in South American headwater streams

et al. 2019

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“…The main topics found in the reviewed papers included "politics" [75,[122][123][124][125], "economics" [118], "climate change" [125][126][127][128][129][130], "water, energy and food security" [5,131], "crises and risks" [55,61,132], "sustainable development" [20,133], and "governance" [16,38,41,57,134].…”

Section: Methods Type and Assessment Toolsmentioning

confidence: 99%

“…Different authors have also highlighted the increasing attention paid to the nexus theme [22,25,27,30,53,54]. This increase mainly was due to two aspects: the increased use of the nexus approach in global discourse and debates about the natural resources [54,55]; and the lack of clarity and consensus related to the presentation of its concept and application [30,55], which generates doubts and uncertainties that can promote research.…”

Section: Nexus Conceptmentioning

confidence: 99%

“…In this sense, after a systematic review, thirty themes were identified associated with the nexus concept (see Section 3.2). This paper considered the following main themes that supported its formation: (a) sustainable development; (b) water, energy, and food This increase mainly was due to two aspects: the increased use of the nexus approach in global discourse and debates about the natural resources [54,55]; and the lack of clarity and consensus related to the presentation of its concept and application [30,55], which generates doubts and uncertainties that can promote research.…”

Section: Nexus Conceptmentioning

confidence: 99%

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A Literature Review to Propose a Systematic Procedure to Develop “Nexus Thinking” Considering the Water–Energy–Food Nexus

et al. 2019

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There is a growing interest in the literature on the theme of the water–energy–food nexus, as there is growing recognition that sectors that share natural resources have interdependent and interconnected systems. Despite the widespread popularity of nexus thinking, it still lacks standardized procedures and methodologies to assist in its development. Therefore, this paper proposes, from a literature review, a systematic procedure to assist in the development of management models based on nexus thinking. To this end, 304 papers were analyzed using the following criteria: nexus concept, type of approach, geographic scale, elements in the nexus system, application context, and types of assessment methods and tools. The results of the review served as the basis for determining the procedure, which consisted of four steps: (a) understanding nexus thinking, (b) identification of composing variables, (c) evaluation (diagnosis and prognosis), and (d) decision-making. In addition to the standardization of these steps, the main information used to compose the procedure was organized and synthesized with a mind map.

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“…Among many other items evaluated in both LEED and AQUA-HQE certifications, it is possible to highlight water, since its efficient use is essential for the future of food, water and energy security (AMORIM et al, 2018). In the urban context, the economy reached by demand management programs and rational use of water may have a significant impact on the supply system (WILLIS et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Brazilian Legislation Based on Water Efficiency Criteria of Leed and Aqua-Hqe Certifications

Garcia

Sborz

Kalbusch

et al. 2020

R. gest. sust. ambient.

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As the global population grows, so grows the water demand, since it is essential for human existence. That is why the main environmental certifications in civil construction comprise a category exclusively for preservation and conservation of water. Even though certifications are becoming well-known, it is the law that determines how cities develop. This article investigates the link between the laws of the capital cities in the South and Southeast regions of Brazil and the water criteria in LEED and AQUA-HQE certifications. It was shown that the certifications are much more strict, quantitative and encompassing than the laws. The reduction in water consumption appeared to be the main concern both in the law and in the certifications. RESUMOConforme a população mundial cresce, cresce também a demanda por água, essencial para a vida humana. É por isso que as principais certificações ambientais da construção civil abrangem uma categoria exclusiva para propor medidas de cuidados e preservação da água. Embora as certificações sejam cada vez mais reconhecidas, são as legislações que regem o desenvolvimento atual. No presente artigo analisou-se como as legislações das capitais do Sul e Sudeste brasileiro se equiparam aos critérios das certificações LEED e AQUA-HQE nas categorias de eficiência hídrica. As certificações mostraram-se mais rigorosas, quantitativas e abrangentes que as leis. A redução do consumo de água potável mostrou-se principal preocupação comum entre leis e certificações.Palavras-chave: Eficiência hídrica. Certificações. Legislação.

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The nexus between water, energy, and food in the context of the global risks: An analysis of the interactions between food, water, and energy security

Cited by 165 publications

References 60 publications

Agriculture influences ammonium and soluble reactive phosphorus retention in South American headwater streams

Agriculture influences ammonium and soluble reactive phosphorus retention in South American headwater streams

A Literature Review to Propose a Systematic Procedure to Develop “Nexus Thinking” Considering the Water–Energy–Food Nexus

Analysis of Brazilian Legislation Based on Water Efficiency Criteria of Leed and Aqua-Hqe Certifications

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