Spatial economic predictions of managed aquifer recharge for an agricultural landscape

Tran, Dinh Dac; Kovacs, Kent; West, Grant

doi:10.1016/j.agwat.2020.106337

Cited by 8 publications

(9 citation statements)

References 37 publications

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“…In past decades, MAR has been used to achieve varying objectives (Dillon et al, 2019;Perrone & Rohde, 2016), however, implementation of MAR is often limited by challenges of recharge water availability (both amount and timing), locating suitable groundwater recharge zones, regulatory constraints, and funding obstacles (Bouwer, 2000;Hanak et al, 2018;Niswonger et al, 2017). Ag-MAR overcomes many of these challenges due to low capital cost and permitting requirements Perrone & Rohde, 2016;Tran et al, 2020), and with appropriate planning can be used to provide multiple benefits to a region including stabilized domestic and agricultural water supply, flood control, and climate change mitigation (Niswonger et al, 2017). However, Ag-MAR implementation in the southern CV might be constrained by the existing surface water conveyance capacity, which Hanak et al (2018) deemed inadequate for capturing and moving high flows to suitable recharge locations.…”

Section: Implications For Ag-mar In California's Central Valleymentioning

confidence: 99%

Identifying Agricultural Managed Aquifer Recharge Locations to Benefit Drinking Water Supply in Rural Communities

Marwaha

Kourakos

Levintal

et al. 2021

Water Resources Research

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Groundwater access has allowed for significant social and economic development, improving food security and livelihoods worldwide (Giordano, 2009). However, growing populations and socioeconomic development have required the expansion of irrigated agriculture and urbanization into areas with limited precipitation and inadequate surface water access, forcing a six-fold increase in global groundwater withdrawals over the last century (Bierkens & Wada 2019). Over two billion people and more than 40% of the world's agricultural production systems rely on groundwater as their primary water source, and it now accounts for one-third of the global freshwater supply (Alley et al., 2002; Döll et al., 2012; Famiglietti, 2014). This development threatens groundwater resources and is apparent in high rates of aquifer depletion and degradation around the world (Gleeson et al., 2020). Decreasing reliability of surface water and depleted groundwater aquifers in groundwater-dependent regions severely impacts domestic water supplies (Hanak et al., 2019), food security (Dalin et al., 2017; Gumidyala et al., 2020), and natural ecosystems (Bierkens & Wada, 2019). This is especially the case in arid and semiarid regions where poorly monitored and often unregulated pumping has contributed to many negative impacts including lowered groundwater levels (

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Section: Implications For Ag-mar In California's Central Valleymentioning

confidence: 99%

Identifying Agricultural Managed Aquifer Recharge Locations to Benefit Drinking Water Supply in Rural Communities

Marwaha

Kourakos

Levintal

et al. 2021

Water Resources Research

View full text Add to dashboard Cite

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“…Several very recent works in 2020 alone from many places internationally have looked at climate adaptation challenges (Alamanos et al, 2020;Baah-Kumi and Ward, 2020;Burek et al, 2020;Carolus et al, 2020;Dawoud, 2020;Do et al, 2020;Exposito et al, 2020;Goncalves et al, 2020;Graveline, 2020;Konapala and Mishra, 2020;Maneta et al, 2020;Meng et al, 2020;Pakhtigian et al, 2020;Sabbaghi et al, 2020;Slater et al, 2020;Tran et al, 2020;Turner et al, 2020).…”

Section: Who and Where: Model Developers And Locations Of Usementioning

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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“…The system explicitly represented nonbeneficial consumption as the evaporation of sprinkler mists and evaporation from canal and soil surfaces, using technology-specific parameters reflecting countywide averages from USGS water use statistics (Dieter et al, 2018;Maupin et al, 2014). A representative fraction of 4 % of sprinkler-applied water is evaporated as mist (Bavi et al, 2009;McLean et al, 2000;Uddin et al, 2010). Furthermore, during the irrigation season, water is assumed to be evaporating at potential rates throughout the canal network.…”

Section: Water Balance Modelmentioning

confidence: 99%

Interplay of changing irrigation technologies and water reuse: example from the upper Snake River basin, Idaho, USA

Zuidema

Grogan

Prusevich

et al. 2020

Hydrol. Earth Syst. Sci.

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Abstract. Careful allotment of water resources for irrigation is critical for ensuring the resiliency of agriculture in semiarid regions, and modernizing irrigation technology to minimize inefficient water losses is an important tool for farmers and agricultural economies. While modernizing irrigation technology can achieve reductions in the nonbeneficial use of water, such as bare soil evaporation and nonconsumptive losses, water returned to the landscape is also reduced, often eliminating flow paths that other users rely on. In basins using a combination of surface and groundwater, replenishing aquifer storage by the managed aquifer recharge (MAR) of seasonally available water can mitigate the aquifer drawdown that results from reduced recharge when irrigation efficiency is improved. We examine the effects of MAR on the system-scale efficiency of modernizing irrigation technology and the resulting changes in the reuse of nonconsumptive losses, using a macroscale hydrologic model applied to the semiarid upper Snake River basin (USRB) of western Wyoming and southern Idaho, USA. Irrigation technologies were represented explicitly in the model, and available data informed baseline parameterizations of the irrigation technology. A suite of parameterizations were simulated that updated the existing technologies to be more efficient, both with and without sufficient MAR to cause a stabilization of the aquifer at the present-day head. As expected, simulated changes in irrigation technology resulted in greater downstream export of pristine water and a higher rate of aquifer drawdown when MAR was not simulated. Under current water use and cropping patterns, we were not able to simulate aquifer stabilization and maintain discharge downstream at any level of irrigation efficiency. We found support for the hypothesis that, as efficiency improves, less MAR is required to maintain a stable aquifer than when return flows are reduced due to increased efficiency. To evaluate the hypothesis, we defined the management benefit as a metric that compared the difference between the change in irrigation's net recharge and the change in MAR required as irrigation technology became more efficient. The metric generally indicated that less MAR was needed than net recharge was lost, but only for the most efficient case did the management benefit exceed the MAR needed at the baseline to stabilize the aquifer. Increasing efficiency of irrigation technology reduced the reuse of the gross irrigation derived from prior nonconsumptive losses, but simulating MAR increased reuse for a given parameterization, leading to higher effective irrigation efficiency. We find that local groundwater storage that users depend on is generally more sensitive to management decisions than downstream flows, and the drawdown of the aquifer without MAR always exceeded any decrease in discharge induced by MAR. Improving resource sufficiency in semiarid systems like the USRB will require an array of solutions that will need to balance benefits to local and downstream users.

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Spatial economic predictions of managed aquifer recharge for an agricultural landscape

Cited by 8 publications

References 37 publications

Identifying Agricultural Managed Aquifer Recharge Locations to Benefit Drinking Water Supply in Rural Communities

Identifying Agricultural Managed Aquifer Recharge Locations to Benefit Drinking Water Supply in Rural Communities

Hydroeconomic Analysis to Guide Climate Adaptation Plans

Interplay of changing irrigation technologies and water reuse: example from the upper Snake River basin, Idaho, USA

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