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Impact of climate change on vulnerability of freshwater resources: a case study of Mauritius

Author

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  • Anuksha Boojhawon

    (University of Mauritius)

  • Dinesh Surroop

    (University of Mauritius)

Abstract

Freshwater resource availability in SIDS, including Mauritius, is on the verge of becoming a major constraint to socio-economic development. A freshwater vulnerability assessment was undertaken for the period of 2000–2015 to understand the present vulnerability of the water systems in Mauritius and a future vulnerability estimation. Currently, the freshwater sector has been classified as a moderately vulnerable sector with a Freshwater Vulnerability Index (FVI) of 0.36–0.38 derived from a resource availability of 1091–1184 m3/capita, a coefficient of rainfall variation of 0.206–0.220, a water exploitation rate of 72–76% and ecological degradation of 30–39% for the period of 2000–2015. For the period of 2020–2050 under a business as usual scenario, the freshwater sector remained in a moderate-vulnerability region whereby the water exploitation rate was found to be the most affected vulnerability parameter with an increase to 95% exploitation by 2050. Under the effects of climate change, the FVI increased to a range of 0.38–0.44 indicating a shift from moderate- to high-vulnerability region and the findings also indicate that the country is likely to enter into a water scarcity region (water availability of 100%) by 2040. For all three scenarios, the resource stress category showed the highest contribution on the calculated FVI with a share of contribution of 33–38% to the current FVI, 34–38% to the predicted FVI for a business as usual scenario and 40–43% to the predicted FVI under the effects of climate change.

Suggested Citation

  • Anuksha Boojhawon & Dinesh Surroop, 2021. "Impact of climate change on vulnerability of freshwater resources: a case study of Mauritius," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(1), pages 195-223, January.
    • Handle: RePEc:spr:endesu:v:23:y:2021:i:1:d:10.1007_s10668-019-00574-3
    DOI: 10.1007/s10668-019-00574-3
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    References listed on IDEAS

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    1. Molden, David, 2007. "Water for food, water for life: a comprehensive assessment of water management in agriculture: summary. In Russian," IWMI Books, Reports H041260, International Water Management Institute.
    2. Molden, David, 2007. "Water for food, water for life: a comprehensive assessment of water management in agriculture: summary. In Arabic," IWMI Books, Reports H041261, International Water Management Institute.
    3. Molden, David, 2007. "Water for food, water for life: a comprehensive assessment of water management in agriculture," IWMI Books, Reports H040193, International Water Management Institute.
    4. Molden, David, 2007. "Water for food, water for life: a comprehensive assessment of water management in agriculture: summary," IWMI Books, Reports H039769, International Water Management Institute.
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    1. Wilian Rodrigues Ribeiro & Morgana Scaramussa Gonçalves & Daniel Soares Ferreira & Dalila Costa Gonçalves & Samira Luns Hatum Almeida & Ramon Amaro Sales & Felipe Cunha Siman & Luan Peroni Venancio & , 2022. "Water demand of central pivot-irrigated areas in Bahia, Brazil: management of water resources applied to sustainable production," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 24(10), pages 12340-12366, October.

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