Analysis for water mitigation options using MCDA: A case study in the Galapagos Islands

Maria F. Reyes, Aleksandar Petricic, Nemanja Trifunovic, Saroj Sharma, Maria D. Kennedy

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
16 Downloads (Pure)

Abstract

Lately, due to overutilization of scarce natural resources such as water, tourist islands have been severely threatened. This is also the case in Santa Cruz Island, the main inhabited island of the Galápagos Archipelago. Therefore, a Multi-Criteria Decision Analysis (MCDA) was carried out with the aim of mitigating the future water crisis. The proposed solutions were evaluated in terms of environmental, technical, economic and social criteria. The results indicate that the ‘best’ alternative for municipality representatives is the option including desalination. However, for the other two groups of stakeholders, the chosen option was the one that combined all the proposed alternatives (greywater recycling, specific demand reduction and rainwater harvesting), except desalination. Conclusions show that for most stakeholders the environment is the most important criteria.

Original languageEnglish
Pages (from-to)436-444
Number of pages9
JournalInternational Journal of Sustainable Development and Planning
Volume13
Issue number3
DOIs
Publication statusPublished - 1 Jan 2018

Keywords

  • Galápagos
  • Intervention strategies
  • Multi-criteria decision analysis
  • Tropical islands
  • Water supply indicators

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