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Carruthers, Ian; Rosegrant, Mark W.; Seckler, David

doi:10.1023/a:1005751232728

Cited by 72 publications

(6 citation statements)

References 4 publications

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“…Alarming observations in the recent decline of groundwater storage (Döll et al, 2014;Richey, Thomas, Lo, Reager, et al, 2015) coincide with an estimated 70% of freshwater withdrawals being used for irrigated agriculture (Rosegrant et al, 2009). Reliance on groundwater to fulfill agriculture water demands can be regarded as a consequential need for food security (Carruthers et al, 1997), thus linking water scarcity as a future constraint to food production (UN, 2007). Groundwater depletion strategies are recognized as a challenge to mitigate water scarcity (Rosegrant & Cline, 2003), yet uncertainty regarding the influence of climate change and groundwater use remain.…”

Section: Introductionmentioning

confidence: 99%

Global Assessment of Groundwater Sustainability Based On Storage Anomalies

Thomas

Caineta

Nanteza

2017

Geophysical Research Letters

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The world's largest aquifers are a fundamental source of freshwater used for agricultural irrigation and to meet human water needs. Therefore, their stored volume of groundwater is linked with water security, which becomes more relevant during periods of drought. This work focuses on understanding large‐scale groundwater changes, where we introduce an approach to evaluate groundwater sustainability at a global scale. We employ a groundwater drought index to assess performance metrics (reliability, resilience, vulnerability, and a combined sustainability index) for the largest and most productive global aquifers. Spatiotemporal changes in total water storage are derived from remote sensing observations of gravity anomalies, from which the groundwater drought index is inferred. The results reveal a complex relationship between the indicators, while considering monthly variability in groundwater storage. Combining the drought and sustainability indexes, as presented in this work, constitutes a measure for quantifying groundwater sustainability. This framework integrates changes in groundwater resources due to human influences and climate changes, thus opening a path to assess progress toward sustainable use and water security.

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Section: Introductionmentioning

confidence: 99%

Global Assessment of Groundwater Sustainability Based On Storage Anomalies

Thomas

Caineta

Nanteza

2017

Geophysical Research Letters

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“…This combination brings about a more consistent and integrated framework to assess potential implications of a range of water management plans (Blanco-Gutierrez et al, 2013). Research on the role of HEA development and use enhance this understanding would produce high returns (Carruthers et al, 1997).…”

Section: Enhancing Irrigation and Food Securitymentioning

confidence: 99%

Hydroeconomic Analysis to Guide Climate Adaptation Plans

Ward

2021

Front. Water

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Successful climate adaptation needs to sustain food, water, and energy security in the face of elevated carbon emissions. Hydroeconomic analysis (HEA) offers considerable potential to inform climate adaptation plans where water is an important element of economic activity. This paper's contribution is to identify how HEA can inform climate adaptation plans by minimizing economic costs of responding to climate induced changes in water supplies. It describes what HEA is, why it is important, how researchers implement it, who has made significant contributions, and places where it has informed policy debates. It also describes future directions for the use of HEA to guide climate adaptation.

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“…Irrigation is a well‐established method for increasing agricultural yields in areas where rainfall is scarce (Carruthers et al, 1997; Domenech & Ringler, 2013; Evenson & Gollin, 2003; Hanjra et al, 2017; Huang et al, 2006; Hussain & Hanjra, 2003, 2004; Lipton et al, 2003). During the Green Revolution of the twentieth century, irrigation, in conjunction with improved seed and fertilizer, drove large productivity gains throughout Asia (Bhattarai et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Does supplemental irrigation enhance smallholder monsoon season rice yield? Evidence from Bangladesh

Rahman,

Connor

2024

Irrigation and Drainage

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Irrigation is one pillar of the Green Revolution that drove dramatic agricultural productivity gains across Asia. In Bangladesh, irrigation uptake has been so significant that 97% of dry‐season rice is now irrigated. While most Bangladesh monsoon rice is completely rainfed, supplementary irrigation is sometimes employed where late monsoon onset is potentially yield‐limiting. Station‐controlled experiments provide a narrative of positive yield benefits from supplementary irrigation. In contrast, statistical evaluations of actual farm experience mostly show no yield benefit and lower profitability for supplementary irrigation adopters. To add evidence on this controversial practice, we evaluated data from 2012 and 2015 Bangladesh farm household surveys with causality econometric approaches that control for differences between supplementary irrigation adopter and non‐adopter groups. After controlling for self‐selection and endogeneity, we found no statistically significant yield benefit for supplementary irrigation. Our results support scepticism about the profitability of supplementary irrigation. As such, we recommend careful consideration of the mixed evidence on effectiveness in future supplementary irrigation project benefit cost analyses. Further evidence over a longer time and accounting for a broader range of crops is also important moving forward.

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Untitled

Cited by 72 publications

References 4 publications

Global Assessment of Groundwater Sustainability Based On Storage Anomalies

Global Assessment of Groundwater Sustainability Based On Storage Anomalies

Hydroeconomic Analysis to Guide Climate Adaptation Plans

Does supplemental irrigation enhance smallholder monsoon season rice yield? Evidence from Bangladesh

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