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Water Management Strategies Using Multi-Criteria Decision Analysis in Santa Cruz Island (Galapagos Archipelago)

Author

Listed:
  • María Reyes*

    (Environmental Engineering and Water Technology Department, IHE Delft (Institute for Water Education), The Netherlands)

  • Aleksandar Petri?i?

    (Environmental Engineering and Water Technology Department, IHE Delft (Institute for Water Education), The Netherlands)

  • Nemanja Trifunovi?

    (Environmental Engineering and Water Technology Department, IHE Delft (Institute for Water Education), The Netherlands)

  • Saroj Sharma

    (Environmental Engineering and Water Technology Department, IHE Delft (Institute for Water Education), The Netherlands)

  • Saroj Sharma

    (Environmental Engineering and Water Technology Department, IHE Delft (Institute for Water Education), The Netherlands Faculty of Civil Engineering and Geosciences, Delft University of Technology, The Netherlands)

Abstract

Islands threatened by tourism around the world are under significant stress due to overutilization of (scarce) water resources. The continuous increase of water demand in Puerto Ayora, the main touristic centre of the Galápagos, has become a threat for the water supply system, portraying the current situation unsustainable on the long-term horizon. For this reason, a Multi-Criteria Decision Analysis (MCDA) is tested as a suitable methodology in the presence of scarce data, leading to a set of indicators and intervention strategies, aiming to mitigate the future water demand coverage. The current analysis revealed the most sustainable solution, including environmental, technical, economic and social criteria, by using the DEFINITE software. The results indicate that best option for most of the stakeholders’ groups is the option combining all proposed-sustainable options like greywater recycling, specific demand reduction and rainwater harvesting.

Suggested Citation

  • María Reyes* & Aleksandar Petri?i? & Nemanja Trifunovi? & Saroj Sharma & Saroj Sharma, 2019. "Water Management Strategies Using Multi-Criteria Decision Analysis in Santa Cruz Island (Galapagos Archipelago)," Scientific Review, Academic Research Publishing Group, vol. 5(6), pages 112-123, 06-2019.
    • Handle: RePEc:arp:srarsr:2019:p:112-123
    DOI: 10.32861/sr.56.112.123
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    References listed on IDEAS

    as
    1. Wang, Jiang-Jiang & Jing, You-Yin & Zhang, Chun-Fa & Zhao, Jun-Hong, 2009. "Review on multi-criteria decision analysis aid in sustainable energy decision-making," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(9), pages 2263-2278, December.
    2. Harrison Mutikanga & Saroj Sharma & Kalanithy Vairavamoorthy, 2011. "Multi-criteria Decision Analysis: A Strategic Planning Tool for Water Loss Management," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 25(14), pages 3947-3969, November.
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