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On the Environmental Efficiency of Water Storage: the Case of a Conjunctive use of Ground and Rainwater

Abstract : Rainwater harvesting, consisting in collecting runoff from precipitation, has been widely developed to stop groundwater declines and even raise water tables. However, this expected environmental effect is not self-evident. We show in a simple setting that the success of this conjunctive use depends on whether the runoff rate is above a threshold value. Moreover, the bigger the storage capacity, the higher the runoff rate must be to obtain an environmentally efficient system. We also extend the model to include other hydrological parameters and ecological damages, which respectively increase and decrease the environmental efficiency of rainwater harvesting.
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https://hal-amu.archives-ouvertes.fr/hal-01447869
Contributor : Patrice Cacciuttolo <>
Submitted on : Friday, January 27, 2017 - 12:15:21 PM
Last modification on : Wednesday, August 5, 2020 - 3:18:21 AM

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Hubert Stahn, Agnes Tomini. On the Environmental Efficiency of Water Storage: the Case of a Conjunctive use of Ground and Rainwater. Environmental Modeling & Assessment, Springer, 2016, 21 (6), pp.691--706. ⟨10.1007/s10666-016-9509-3⟩. ⟨hal-01447869⟩

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