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A Hydrogeologic Framework for Understanding Local Groundwater Flow Dynamics in the Southeast Deschutes Basin, Oregon, USA

1
Water Resources Graduate Program, Oregon State University, Corvallis, OR 97331, USA
2
Department of Animal and Rangeland Sciences, Ecohydrology Lab, Oregon State University, Corvallis, OR 97331, USA
3
Institute for Water and Watersheds, Oregon State University, Corvallis, OR 97331, USA
4
OSU Extension Service-Crook County (emeritus), Oregon State University, Prineville, OR 97754, USA
*
Author to whom correspondence should be addressed.
Geosciences 2019, 9(2), 57; https://doi.org/10.3390/geosciences9020057
Received: 23 December 2018 / Revised: 14 January 2019 / Accepted: 17 January 2019 / Published: 24 January 2019
Understanding local hydrogeology is important for the management of groundwater resources and the ecosystems that depend on them. The main objective of this study conducted in central Oregon, USA was to characterize the hydrogeologic framework of a part of the semiarid Upper Deschutes Basin. Information on local geology and hydrology was synthesized to construct a hydrogeologic framework and a conceptual model of groundwater movement in shallow and previously unmapped deeper aquifers. Study results show that local geology drives many of the surface water and groundwater connections that sustain groundwater-related ecosystems and ranching-related activities in the geographical area of interest. Also, the findings of this study suggest that ecohydrological investigations can be used to mitigate concerns regarding groundwater development. Likewise, newly-developed conceptual models of the hydrogeology of previously unstudied areas within a groundwater basin undergoing regulation offer opportunities to not only address concerns regarding integrated surface water–groundwater interactions but also provide supplemental sources of water for nearby areas undergoing groundwater depletion through proposed bulk water transfers. View Full-Text
Keywords: hydrogeology; surface water; groundwater; groundwater dependent ecosystems; central Oregon; USA; Juniper; shallow aquifer hydrogeology; surface water; groundwater; groundwater dependent ecosystems; central Oregon; USA; Juniper; shallow aquifer
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Caruso, P.; Ochoa, C.G.; Jarvis, W.T.; Deboodt, T. A Hydrogeologic Framework for Understanding Local Groundwater Flow Dynamics in the Southeast Deschutes Basin, Oregon, USA. Geosciences 2019, 9, 57.

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