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A drop of rainwater against a drop of groundwater: does rainwater harvesting really allow us to spare Groundwater?

Author

Listed:
  • Hubert Stahn

    (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - EHESS - École des hautes études en sciences sociales - AMU - Aix Marseille Université - ECM - École Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique)

  • Agnès Tomini

    (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - EHESS - École des hautes études en sciences sociales - AMU - Aix Marseille Université - ECM - École Centrale de Marseille - CNRS - Centre National de la Recherche Scientifique)

Abstract

This paper is concerned with groundwater management issues in the presence of rainwater harvesting (RWH). Namely, we propose a two-state model in order to take into account the standard dynamics of the aquifer and the dynamics of the storage capacity since the collected rainwater reduces the natural recharge. We analyze the trade-off between these two water harvesting techniques in an optimal control model. We notably show that, when these techniques are pure substitutes, the development of RWH conducts in the long run to a depletion of the water table even if pumping is reduced.

Suggested Citation

  • Hubert Stahn & Agnès Tomini, 2010. "A drop of rainwater against a drop of groundwater: does rainwater harvesting really allow us to spare Groundwater?," Working Papers halshs-00443667, HAL.
    • Handle: RePEc:hal:wpaper:halshs-00443667
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-00443667
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    File URL: https://shs.hal.science/halshs-00443667/document
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    Cited by:

    1. Raphaël Soubeyran & Mabel Tidball & Agnes Tomini & Katrin Erdlenbruch, 2015. "Rainwater Harvesting and Groundwater Conservation: When Endogenous Heterogeneity Matters," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 62(1), pages 19-34, September.
    2. Hubert Stahn & Agnès Tomini, 2015. "Rainwater Harvesting under Endogenous Capacity of Storage : a Solution to Aquifer Preservation," Annals of Economics and Statistics, GENES, issue 119-120, pages 209-234.
    3. Katrin Erdlenbruch & Raphael Soubeyran & Mabel Tidball & Agnes Tomini, 2012. "(Anti-)Coordination Problems with Scarce Water Resources," Working Papers 12-28, LAMETA, Universtiy of Montpellier, revised Sep 2012.

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