WIT Press


The Impact Of Gouin Reservoir Management On The Ecohydrological Drought Characteristics Of Streamflow In The Saint-Maurice River (Quebec, Canada)

Price

Free (open access)

Paper DOI

10.2495/SD150301

Volume

168

Pages

9

Page Range

347 - 355

Published

2015

Size

1,018 kb

Author(s)

R. Landry, A. A. Assani

Abstract

We analyzed the impacts of the Gouin Reservoir, built on the Saint-Maurice River, in Quebec, on the magnitude and frequency of ecohydrological drought. Magnitude values, calculated as the difference between measured low flow and the ecological compensation flow, have increased significantly over time as a result of decreasing amounts of snow, while frequency has not changed significantly over time. The study suggests that a new mode of dam management is required for the Gouin Reservoir to ensure the preservation of fish habitats downstream from the reservoir, and that mode must take into account the decreasing amount of snow in the watershed.

Keywords

ecohydrological drought, Gouin Reservoir, ecological compensation flows, Lombard method