Scalable solutions to freshwater scarcity: Advancing theories of change to incentivise sustainable water use

Garrick, Dustin; Iseman, Tom; Gilson, Gina; Brozović, Nicholas; O’Donnell, Erin; Matthews, Nathanial; Miralles‐Wilhelm, Fernando; Wight, Charles; Young, William J.

doi:10.1016/j.wasec.2019.100055

Cited by 39 publications

(29 citation statements)

References 63 publications

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“…Moreover, producers could further increase their net revenue by the emerging water right trading. For example, producers could sell or lease their saved water rights from the agriculture sector (with lower water value) to the industry sector (with higher water value) and to the federal government, state agencies, and/or nongovernmental organizations for environmental conservation purposes 39,40 .…”

Section: Discussionmentioning

confidence: 99%

Sustainable irrigation based on co-regulation of soil water supply and atmospheric evaporative demand

et al. 2021

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Irrigation is an important adaptation to reduce crop yield loss due to water stress from both soil water deficit (low soil moisture) and atmospheric aridity (high vapor pressure deficit, VPD). Traditionally, irrigation has primarily focused on soil water deficit. Observational evidence demonstrates that stomatal conductance is co-regulated by soil moisture and VPD from water supply and demand aspects. Here we use a validated hydraulically-driven ecosystem model to reproduce the co-regulation pattern. Specifically, we propose a plant-centric irrigation scheme considering water supply-demand dynamics (SDD), and compare it with soil-moisture-based irrigation scheme (management allowable depletion, MAD) for continuous maize cropping systems in Nebraska, United States. We find that, under current climate conditions, the plant-centric SDD irrigation scheme combining soil moisture and VPD, could significantly reduce irrigation water use (−24.0%) while maintaining crop yields, and increase economic profits (+11.2%) and irrigation water productivity (+25.2%) compared with MAD, thus SDD could significantly improve water sustainability.

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Section: Discussionmentioning

confidence: 99%

Sustainable irrigation based on co-regulation of soil water supply and atmospheric evaporative demand

et al. 2021

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“…Estudos recentes confirmam a centralidade dos recursos hídricos sobre os temas ambientais e de desenvolvimento: segurança hídrica (GARRICK et al, 2020;PEÑA, 2016;UNESCO, 2012); água e segurança alimentar (FAO; WWC, 2015; LOPEZ-GUNN, 2014); governança dos recursos naturais (ALTAMONTE; SANCHEZ, 2016;FAO, 2011); desenvolvimento sustentável (CEPAL, 2015;FERRO, 2017); discussões do nexo WEF (BELLFIELD, 2015;MARTIN, 2017;FAO, 2014;SIMPSON;JEWITT, 2019).…”

Section: Mudanças Do Clima E O Nexo Wefunclassified

Nexo entre água, energia e alimento no contexto das mudanças do clima: o caso do Nordeste brasileiro

Souza

Versieux

2021

Estudos Internacionais

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Este artigo analisa ações do governo brasileiro para a segurança hídrica, energética e alimentar para discutir se expressam o nexo entre água, energia e alimento, WEF, considerando as políticas que as fundamentam. São observados desafios de adaptação impostos pelas mudanças do clima, sendo a água o elemento chave. Usando técnicas de análise documental, são analisados o Plano Nacional de Mudanças Climáticas e relatórios de ações governamentais na Região Nordeste. A pergunta da pesquisa é se programas para implementação de políticas voltadas para os eixos do nexo WEF expressam inter-relações entre eles. A hipótese é que os programas deixam a desejar quanto à governança ambiental a partir da perspectiva do nexo WEF porque as políticas se desenvolveram a partir de abordagem setorial e os programas de implantação não a debelaram, observando-se lacunas que, caso superadas, poderiam contribuir para que se avance na direção da governança integrada e sistêmica.

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“…Economic incentives arising from water trading may even exacerbate these adverse effects (Liang, 2013). To mitigate these effects, it has been suggested to implement regulatory policies such as capping groundwater withdrawal permits according to the renewable capacity of aquifers (Richardson et al, 2011;Garrick et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the proposed policy analysis framework aims to improve the economic efficiency of water use under the C&T policy. The C&T policy allows the exchange of groundwater permits while limiting them according to aquifers' renewable capacity (Thompson et al, 2009;Garrick et al, 2020). Thus, this policy can lead to the sustainable use of limited groundwater resources (Aghaie et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Bottom-up capping (BUC) policy under bargaining techniques for inter-sectoral groundwater trading: a case study from Iran

2021

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Cap-and-trade (C&T) policy has led to environmental benefits in some groundwater markets by restricting and economically reallocating water permits. However, top-down approaches for capping permits may face resistance of every affected stakeholder. This paper presents an efficient policy framework to improve the implementation of C&T policies in a real shared aquifer in Iran. To this end, groundwater permits for water-selling farms are capped through a bottom-up capping (BUC) policy. A policy analysis that employs static and dynamic bargaining techniques incorporates farms' utilities. Results reveal that the bargaining techniques propose more acceptable capping strategies than the top-down approach. The BUC policy analysis introduces the proposed strategy by dynamic bargaining as the tradable groundwater permits. The effects of irrigation water sales to the industry sector, evaluated using a cooperative game-based optimization model, show that with the fair reallocation of water trading benefits, the current net benefits of agriculture and industry sectors increase by 55 and 27%, respectively. Furthermore, farms reduce their groundwater withdrawals by 35% compared with the current mode. Therefore, the BUC policy for inter-sectoral groundwater trading under dynamic bargaining can lead to the sustainable use of limited groundwater resources by facilitating the capping strategies and improving the water permits productivity.

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Scalable solutions to freshwater scarcity: Advancing theories of change to incentivise sustainable water use

Cited by 39 publications

References 63 publications

Sustainable irrigation based on co-regulation of soil water supply and atmospheric evaporative demand

Sustainable irrigation based on co-regulation of soil water supply and atmospheric evaporative demand

Nexo entre água, energia e alimento no contexto das mudanças do clima: o caso do Nordeste brasileiro

Bottom-up capping (BUC) policy under bargaining techniques for inter-sectoral groundwater trading: a case study from Iran

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