EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/23/2019 | 2:15 PM - 2:30 PM | QUANTIFYING HYPORHEIC FLOW IN BEAVER PONDS OF VARYING SIZE AND STREAM MORPHOLOGY | 251 DE
QUANTIFYING HYPORHEIC FLOW IN BEAVER PONDS OF VARYING SIZE AND STREAM MORPHOLOGY
Mountain desert ecosystems tend to have intermittent surface water flows. Driven by snowpack melt, these low-order streams lose the majority of their water by the late summer months. Since the reintroduction of beavers (Castor canadensis), surface water is able to remain year round due to a beaver dams ability to slow water velocity and impound water. This results in an increase of water retention time allowing for a greater hyporheic zone and surface to ground water interaction. In theory, beaver ponds of larger sizes should have an increased surface to ground water interaction relative to ponds of smaller size. To test this hypothesis and quantify seepage flux in beaver ponds, 18 seepage meters were placed along 6 beaver ponds of differing area and stream morphology. Sediment samples were taken from each pond and analyzed for particle size, bulk density/porosity, and sediment organic matter. Surface to ground water interactions had a positive relationship with pond size. This supports the hypothesis that beaver dams noticeably affect the interaction of surface and ground water in low-order desert streams. Additionally, there was an observed trend for decreasing groundwater infiltration with decreasing elevation.
- Hydrology
- Hyporheic
- Watershed
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Presenters/Authors
Colton Sanders
(), Murray State University, csanders17@murraystate.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -