Article
 

Design of Managed Aquifer Recharge for Agricultural and Ecological Water Supply Assessed Through Numerical Modeling

Pubblico Deposited

Contenuto scaricabile

Scarica il pdf
https://ir.library.oregonstate.edu/concern/articles/9c67ws40v

Descriptions

Attribute NameValues
Creator
Abstract
  • The Walla Walla Basin, in Eastern Oregon and Washington, USA, faces challenges in sustaining an agricultural water supply while maintaining sufficient flow in the Walla Walla River for endangered fish populations. Minimum summer river flow of 0.71 m³/s is required, forcing irrigators to substitute groundwater from a declining aquifer for lost surface water diversion. Managed Aquifer Recharge (MAR) was initiated in 2004 attempting to restore groundwater levels and improve agricultural viability. The Integrated Water Flow Model (IWFM) was used to compute surface and shallow groundwater conditions in the basin under water management scenarios with varying water use, MAR, and allowable minimum river flow. A mean increase of 1.5 m of groundwater elevation, or 1.5 % of total aquifer storage, was predicted over the model area when comparing maximum MAR and no MAR scenarios where minimum river flow was increased from current level. When comparing these scenarios a 53 % greater summer flow in springs was predicted with the use of MAR. Results indicate MAR can supplement irrigation supply while stabilizing groundwater levels and increasing summer streamflow. Potential increase in long-term groundwater storage is limited by the high transmissivity of the aquifer material. Increased MAR caused increased groundwater discharge through springs and stream beds, benefiting aquatic habitat rather than building long-term aquifer storage. Judicious siting of recharge basins may be a means of increasing the effectiveness of MAR in the basin.
  • This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Springer and can be found at: http://link.springer.com/journal/11269
  • Keywords: Managed aquifer recharge, Salmon, Hydrological modeling, Groundwater management, Habitat restoration, Agricultural water supply
Resource Type
DOI
Date Available
Date Issued
Citation
  • Scherberg, J., Baker, T., Selker, J. S., & Henry, R. (2014). Design of Managed Aquifer Recharge for Agricultural and Ecological Water Supply Assessed Through Numerical Modeling. Water Resources Management, 28(14), 4971-4984. doi:10.1007/s11269-014-0780-2
Journal Title
Journal Volume
  • 28
Journal Issue/Number
  • 14
Dichiarazione dei diritti
Funding Statement (additional comments about funding)
  • The authors would like to acknowledge the generous support received from the Walla Walla Basin Watershed Council, Bob Bower, Richard Cuenca, IWFM developer Can Dogrul, Aristides Petrides, the Oregon Watershed Enhancement Board, the Oregon Agricultural Experiment Station, the Oregon Department of Water Resources, the Washington Department of Fish and Wildlife, and the Washington Department of Ecology.
Publisher
Peer Reviewed
Language
Replaces

Le relazioni

Parents:

This work has no parents.

Elementi

Thumbnail Titolo Data caricata Visibilità Azioni
file details SelkerJohnBiologicalEcologicalEngineeringDesignManagedAquiferRecharge.pdf 2017-10-27 Pubblico Scaricare